Tomatoes (Solanum lycopersicum) are an edible berry that is most commonly red. They are often grown in-field and in greenhouses. Consumed both raw and cooked, tomatoes are a common ingredient in many dishes. Commercially grown tomatoes come in a variety of sizes.
Market Size
Global Tomato Production
According to the Food and Agriculture Organization of the United Nations, the world production of tomatoes in 2022 was 186,207,961 tons. The top 10 producing countries in the world generate approximately 75% of the global tomato supply. In 2022, the global tomato crop occupied approximately 6,059,197 hectares. Tomatoes are the most produced vegetables in the world by weight.
[TABLE] 2022 Tomato Production by Country
Country | Production, 2022 (tons) | Area Harvested, 2022 (hectares) | Yield, 2022 (100 g/ha) | Percent of global total |
China | 68,341,799.62 | 1,141,663 | 598,616 | 37% |
India | 20,694,000 | 843,000 | 245,480 | 11% |
TĂĽrkiye | 13,000,000 | 158,719 | 819,058 | 7% |
USA | 10,199,753 | 106,757 | 955,418 | 5% |
Egypt | 6,275,443.91 | 143,618 | 436,954 | 3% |
Italy | 6,136,380 | 97,610 | 628,663 | 3% |
Mexico | 4,207,889.22 | 90,696 | 463,956 | 2% |
Brazil | 3,809,986 | 54,502 | 699,054 | 2% |
Nigeria | 3,684,566.41 | 702,275 | 52,466 | 2% |
Spain | 3,651,940 | 45,150 | 808,846 | 2% |
Source: FAOSTAT, find the data we pulled here.
China is by far the largest producer of tomatoes globally, followed by India, Turkey, and the U.S. Though the Asia-Pacific region has been a significant contributor to growth in intensive tomato production, North America and Europe are also major producers and consumers of both fresh and processed tomato products. The world’s top consuming regions include North America, Europe, and Eurasia.
Mexico is the world’s leading exporter of tomatoes, accounting for nearly 26% of global exports, most of which flows into the U.S. The Netherlands, Spain, and Morocco are also top exporters. In terms of imports, North America and Europe represent the largest import regions, with the U.S., Germany, the U.K., and France importing the most tomatoes, mostly from regional neighbors.
Globally, tomato production has been on the rise in recent decades, responding to increasing demand for fresh tomatoes as part of a healthier, more plant-based diet, particularly as an ingredient in salads, sandwiches, and a diversity of global cuisines. Plus, tomato productivity (yield per acre/hectare) has risen dramatically over recent decades.
Demand is also on the rise for processed tomato products, especially given that tomatoes are a reliable ingredient that adds umami flavor to dishes and prepared foods. Processed applications including tomato sauce, ketchup, tomato paste, canned tomatoes, and tomato juice consume as much as 80% of all commercially grown tomatoes.
U.S. Tomato Trends
Tomato production in the U.S. has fallen since 2000, mainly due to increasing competition from abroad (primarily Mexico). In the U.S., domestic production meets only about 40% of the total fresh-market demand.
[FIGURE] Tomato Production in the U.S. and Mexico, 2000-2020
Though this trend, on average, holds across the U.S. tomato market, the production of processing tomatoes has been more steady. In 2000, there were about 10.9 million tons of processing tomatoes grown in the U.S. In 2019, that figure rose to 11.9 million tons, down from a high in 2015 of 14.7 million tons. Since 2020, the processing tomato market has been particularly strong in the U.S., thanks to pandemic-related shifts in consumer trends and production limitations.
According to the USDA National Ag Statistic Service, in 2023 tomatoes were among the top three vegetables grown in the U.S. both in terms of area harvested, total production, and total value. 301,800 acres of tomatoes were harvested in 2023, yielding a total of 271.7 million hundred weight (cwt) across the country, with an average yield per acre of 903.6 cwt/ac. The average price per cwt in 2023 was $10.20, a nearly $2 increase over 2022 and nearly $4 over 2021. The total value of the U.S. tomato crop in 2023 totaled $2.758 billion USD.
[FIGURE] U.S. tomato production, three states, 2000–2015
California leads the U.S. in terms of tomato production for both fresh and processing tomatoes, accounting for more than 85% of total U.S. production. Florida is the second highest producing state, and is most known for fresh market production. Florida accounts for about 10% of U.S. production. Fresh market tomato production exists in almost all states, though that production is not closely tracked by the USDA. Other top producing states include Georgia, North and South Carolina, Tennessee, Virginia, New Jersey, Ohio, and Michigan.
The value of California’s tomato production in 2023 totaled about $2.2 billion, as compared to Florida’s $493 million. Within California, Fresno, Yolo, Kings, Merced, and San Joaquin county are the most significant tomato production counties.
Organic tomato production is on the rise in the U.S., with California leading the way. Organic tomatoes tend to be priced as much as 60% higher than conventional varieties in the U.S. The number of organic tomato acres harvested in the U.S. remains around 12,000 acres.
According to the most recent USDA Census of Agriculture (2022), there are about 25,997 field tomato farms in the U.S. larger than 1 acre, though around 500 account for most of the nation’s production. About three times as many acres of processing tomatoes were planted in the U.S. than fresh market tomatoes in 2022. Though 92% of all tomato farms plant fresh market tomatoes, 77% of all tomato acres are processing tomatoes. This is due to the fact that processing tomato farms tend to be much larger and more mechanized than the average fresh market tomato farm.
Though production of fresh market tomatoes is on the decline in the U.S., consumption is not. Tomatoes are the most widely consumed produce commodity after onions, with the average consumption per capita of about 20 pounds of fresh tomatoes and nearly 80 pounds of processed tomatoes annually. The gap between falling production and stable demand is largely being filled by imports from Canada and Mexico.
There has also been an increase in greenhouse production in the U.S. As of 2019, most states played host to some amount of greenhouse tomato production, according to the USDA.
Tomato Types
Though all tomatoes fall into the Solanaceae family (along with potatoes, eggplants, and peppers), there are many distinct cultivars that are commonly grown in the U.S. and around the world. Though there are approximately 7,500 varieties of tomatoes grown, a few groups are most frequently highlighted in commercial contexts.
A common cultivar distinction for fresh market tomatoes is between determinate and indeterminate varieties. Many commercial varieties are a determinate, bush-type that flower, then fruit, and stop growing at certain height. Indeterminate types produce flowers and fruit continuously until the first frost (or other killing event), making them less predictable for commercial fresh market field growers. However, indeterminate varieties are often a good fit for greenhouse growers.
There are many varieties that fall into this category, characteristics of which are round tomatoes used in processing or for fresh consumption. These tomatoes can vary in size and application, from very large fruits that are destined for processing to thicker skinned globes that are commonly used sliced in food service applications.
Specific varieties of slicing or globe tomatoes are selected for their market applications, and are commonly hybrids and regionally specific. They tend to be bred for disease resistance, firm flesh, and storage potential. Some commercial varieties include; Amelia, Biltmore, Carolina Gold, Sebring, Mountain Spring, and Solimar.
Romas are a flavorful variety with an elongated shape and a deep red coloration. They’re most commonly known as an ingredient in tomato pastes or sauces due to their low water content and chewy flesh. The Italian-type, San Marzano, is the most well-known. Commercial varieties include Hybrid 882, Yaqui, Monica, La Roma II, Midnight Roma, and Inca Jewels. Romas are grown for both fresh market and processing applications.
Plums are bred for higher solids for use in tomato sauce and paste. Varieties include Plum Crimson, Plum Daddy, and Puebla.
These large tomatoes are often used for sandwiches in food service. They can be hybrids, and tend to be some of the largest tomato varieties. They also tend to have smaller seed cavities than other types, which results in a larger ratio of flesh to seeds and juice. There are many kinds of beefsteaks, and they can also come in a variety of colors, though red is still most common among commercial varieties.
Some common varieties include Big Beef, Buffalo Steak, Bush Champion II, SteakHouse, Old German, and Cherokee Purple (technically an heirloom variety).
Small, round and often quite sweet, cherry tomatoes are usually used for applications in salads. These varieties often tend to have a higher water content than other smaller varieties. Varieties include Cherry Grande and Mountain Belle.
Grape tomatoes are technically a smaller variation of a plum variety, and are commonly used in salads. They have a lower water content and thicker skin than cherries, helping them have a longer shelf life. Grape tomatoes can also be orange or yellow, in addition to red. Commercial varieties include Jelly Beans, Chocolate Sprinkle, Valentine, and San Vicente.
Cherry, grape, and other mini tomato varieties are most commonly used for fresh market applications, and are rarely grown for processing.
A small portion of commercial acreage is dedicated to heirloom varieties, which are becoming more common and desirable with U.S. consumers.
Some varieties include Black Krim, Mr. Stripey, Brandywine, and Cherokee Purple.
Addressable Market
According to Straits Research, the global tomato market is expected to grow at a CAGR of 4.65% through 2032, from a 2023 value of $195.24 billion USD to $249.06 billion. Demand for tomatoes around the world is expected to remain steady due to health-conscious consumer trends. The fact that processed tomatoes are used in such a wide range of applications, from fresh consumption to food service to processed foods including juice, ketchup, paste, pulp, sauces, salsas, gravies, curries, powders and purees, indicates the demand for a vast supply and wide variety of tomatoes is unlikely to decline. The largest and fastest growing market region is Asia.
The total value of the U.S. tomato crop in 2023 totaled $2.758 billion USD. U.S. production is expected to continue to decline due mainly to competition from abroad and high cost of labor.
The true addressable market for tomato management technologies will be approximately equal to the cost of labor and other inputs needed to manage and harvest tomatoes. So, to determine the value of a specific technology to the sector, it’s necessary to understand the costs associated with different types of tomato production.
Current Challenges and Key Opportunities for Processing Tomatoes
Grower Challenges: Production of Processing Tomatoes
Successful processing tomato growers oversee a complex production system that requires careful and continuous management over a variety of plant life-stages. Field-grown tomatoes are highly sensitive to weather extremes, changes in soil, pests, and other factors throughout the season, and to handling during and after harvest. Therefore, cultivating tomatoes requires significant planning, labor, and financial outlay.
- There are many factors to consider when planning tomato plantings including: soil type and pH (though sandy, clay, and loam soils may all be suitable for tomato production), pest and disease history, drainage, water access and quality, and weather. Soil testing is a critical first step in determining whether a given acre is well-suited to tomato production.
- Land preparation is largely carried out in the fall to allow for wet spring conditions and facilitate on-time planting. Land prep includes fall bed tillage, which can vary depending on what type of irrigation is used in a given field. Beds will then be furrowed and reshaped. Additional land preparation tasks including stubble discing, subsoiling, rolling, and laser leveling or landplaning may be required. If a drip irrigation system is being utilized, the installation of drip tape occurs as part of land preparation activities.
- Tomatoes are rarely seeded and thus are usually transplanted as greenhouse-grown seedlings, though the grower often supplies the seed to the greenhouse.
- Due to the time intensity of the transplanting process, planting is often spread out over several weeks. This work will generally be carried out by a custom planting crew that is hired by the farm for this work only. Seedling plugs are mechanically planted between early March and early June.
- A common field layout for field-grown processing tomatoes consists of either single or double-line beds planted at a rate of 8,000 plants per acre. Depending on the location 60 inch to 66 inch beds are common.
- When selecting a variety, growers will generally choose those that they have been contracted to grow (production contracts with processors are common, which will include a list of approved varieties), have a preference for, and which they feel are well-suited for their farm’s unique conditions.
- Variation in yield potential, days to maturity, and disease and pest resistance can vary significantly, so careful selection of a variety well-suited to the soils, weather, and other farm conditions are crucial to reach both quality and quantity goals.
- Essentially all processing tomatoes grown in California are hybrids, and just a few varieties are planted in most of the state’s processing tomato fields.
- Growers are increasingly interested in strategies to reduce tillage to improve production and profitability. However, reduced tillage and alternatives like cover cropping are still uncommon due to existing limitations. This is an opportunity for technological advancement.
- All processing tomatoes are irrigated.
- Sprinkler irrigation is often necessary particularly during stand establishment, but furrow irrigation is most common, especially after stand establishment.
- One- to two-week intervals are common for early season tomato irrigation schedules, increasing to daily during the peak demand season, though this can vary dramatically based on individual farm and season conditions. Water usage varies depending on plant age, species, climate, and soil type. But other factors, including the energy cost of pumping water, the cost of water itself, a grower’s irrigation strategy, and any rules or restrictions put in place by local water districts could influence the amount of water that growers apply.
- Total amount of irrigation will vary depending on local conditions and the type of irrigation system utilized.
- Drip irrigation systems are becoming increasingly popular, especially due to efficiency and productivity gains of using surface or subsurface drip. Subsurface systems include drip tape buried 8-12 inches in the soil.
- Irrigation is generally stopped around two to six weeks before harvest to improve fruit quality
- Salinity management is a key issue for any grower using irrigation water, due to the tendency of dissolved salts (sodium, chloride, and boron) to concentrate in irrigation water, which is then transferred to soils. For tomatoes in particular, exposure to salts can lead to poor stand establishment and yield loss.
- Modern irrigation management generally involves water budgeting, soil water measurement and monitoring (especially with probes), weather-based irrigation scheduling, and the use of other digital applications. Growers will increasingly hire specialized irrigation managers to plan and manage water allotments, scheduling, and quantity allocations during times of shortage.
- Water access may well be the primary concern in most Californian growing regions, with a chief question being whether irrigation water is to be drawn from surface sources or from a well. Both options have their benefits and drawbacks; namely, surface water can be less expensive to pump, but can be cut when water is not available during periods of drought. Conversely, growers generally have more access to and control over wells, though there are risks related to land subsidence (due to over-pumping) and the possibility of the well drying up.
- Tomatoes are a nutrient-hungry crop, and providing adequate nutrition is critical to producing an abundant and high-quality harvest.
- Initial fertilization often takes place during planting when nitrogen (N) and phosphorous (P) containing water is often applied to the soil at the same time as the seedling. Otherwise, pre-transplant fertilizer may also be applied.
- Requirements and rates for fertilizers will vary depending on a variety of factors, especially the results of soil tests.
- In California, typical seasonal N rates fall between 125 and 250 lbs/acre. Typical P rates fall between 40 and 120 lbs/acre, and typical K (potassium) rates fall between 0 and 200 lbs/acre.
- P is always applied preplant or at transplanting. N and K are either applied through a fertigation or through a combination of preplanting/planting applications and mid-season sidedressings.
- Potassium is a particularly important nutrient for preventing the common disorder yellow shoulder, which is encouraged by K deficiency.
- Additional nutrients, including zinc and gypsum, are sometimes applied to tomato fields, but few others are generally required in California.
- Growers, especially in California, must comply with water quality control standards that limit the amount of fertilizer runoff in water that flows off an agricultural property. This compliance, in addition to the fact that soil amendments are a cost on the farm’s balance sheet, makes careful and precise nutrient management particularly important.
- Tomato growers are increasingly experimenting with additional soil additives like micronutrients, biologicals, and manures. Uses and practices related to these products vary widely.
- There are many pests, including insects, nematodes, weeds, diseases, and invertebrates that tomato growers will have to contend with throughout an ordinary growing season. Read on for more on the products and practices growers use to combat these threats. For more on the pests themselves and how they affect the crop, see Considerations for Pests and Diseases below.
- The development of an integrated pest management plan at the farm level is critical to avoid major pest-related problems (including chemical resistance). Careful monitoring and taking timely action during specific periods of the season and during specific plant growth stages to prevent outbreaks can mean the difference between a successful crop and total destruction.
- The critical periods include pre-plant/bed preparation, planting to stand establishment, vegetative development, harvest, and post-harvest, including handling and in-field activities.
- The first steps in managing pests in the tomato field are non-chemical, cultural practices like mechanical cultivation, hand weeding, good drainage, irrigation management, and equipment, field, and worker sanitation. These steps reduce the necessary conditions for disease, insect, or weed populations to take hold.
- Though mechanical options (i.e. cultivation) are common to control weed populations, at some points in the season, some amount of hand weeding is sometimes required.
- There are also many crop protection molecules available to protect tomato crops from various pests.
- Glyphosate and oxyfluorfen are commonly used to prevent weeds, in addition to trifluarlin, metolachlor, and rimsulfuron.
- Sevin bait, Warrior and Confirm are often used against insect pests in tomato fields.
- Kocide, Sulfur dust, Bravo-Weatherstik, and Quadris Top are commonly applied in response to various diseases.
- Vertebrate pests like gophers are often trapped or poisoned using zinc phosphide.
- In the production of organic tomatoes, there are significantly fewer chemical tools, especially for controlling weeds. Mechanical weed solutions for organic tomatoes represent a major opportunity in this niche.
- Soil fumigation is sometimes used in tomato fields pre-planting as a tool for managing nematode, disease, and weeds.
- For many pesticides used in tomato production, written recommendations from a Certified Crop Advisor are required. Growers will likely hire a Pest Control Advisor (PCA) or a crop consultant to monitor for pests, nutritional deficiencies, and other agronomic problems, or they may receive the service as part of a service agreement with an ag chemical company. This expert will likely also recommend products and practices tailored to a farm’s specific needs.
- Harvesting officially begins in the weeks before harvest crews arrive, when irrigation is stopped to improve quality characteristics and a fruit ripener (like ethephon) is applied.
- The processing tomato harvest in California takes place between July and October. The exact timing of harvest on a given farm is affected by variety, planting date, and seasonal climatic conditions, but harvest timing is triggered when at least 90% of the fruit is ripe.
- Processing tomatoes are mechanically harvested, either by the grower with leased or owned equipment, or by a custom (contracted) harvesting crew.
- Laborers are still required during the harvest process. A harvest crew generally includes manual sorters and multiple equipment drivers.
- The mechanical harvesting process is destructive, so there is only one pass taken through a processing tomato field.
- The processor generally pays the transportation costs to bring the tomatoes from the field to the processing plant.
- Bulk loads are graded near in the tomato-producing regions in California by the Processing Tomato Advisory Board. This grading process evaluates fruit color, soluble solids content, pH, and defects.
- Post-harvest handling, including culling, washing, packing, and any further processing, is generally done by the processor in a specialized tomato processing facility.
- One acre of processing tomatoes produces between 35 and 65 tons of tomatoes per acre in recent years. Productivity per acre will vary significantly depending on the variety and other factors.
- The overall size and scale of the farming operation, and what (if any) other crops/varieties the farmer grows.
- The level of vertical integration in a vegetable business.
- Whether the land is owned or rented by the grower.
- Infrastructure availability (road access, irrigation systems, building locations, etc.)
Grower Challenges: Economics of Processing Tomatoes
Common Processing Tomato Farm Business Model
Tomato growers sell fresh processing tomatoes to processors. Growers generally do not plant processing tomatoes without an active contract with a cannery or other processor. Growers sell processing tomatoes in the U.S. by the ton.
Because of this limited scope of possible models in the processing tomato world, the success of a processing tomato farm businesses depends on the yields achieved, the quality of the product, the price, and the relationship a given farmer has with processors. Processing tomato growers must also consider other costs such as labor, seed, fertilizer, pest management, land costs (including land rent if leasing), as well as the potential for unexpected weather or market conditions when managing their farm business year to year.
The yield of the average acre of processing tomatoes can vary significantly based on a number of factors, especially variety and geography. Because of the difficulty of determining these factors, in addition to the impossibility of generalizing about input costs and other expenses, it is difficult to determine whether processing tomato production in a given season on a given farm is profitable.
FIGURE: Overall average prices for processing tomatoes in 2022
The price that processing tomato producers receive is dependent upon variety, timing, quality, and other market factors. The price can also vary due to non-market factors. Specific quality standards vary by geography and purchaser.
Processing Tomato Crop Budget
We highly recommend taking time to understand crop budgets before having a conversation with growers in order to better understand their needs and costs.
- Crop Enterprise Budget Example #1: Tomato (Processing) | Sacramento Valley - Northern Delta (2023)
- Crop Enterprise Budget Example #2: Tomato (Processing) | San Joaquin Valley South (2018)
It is critical to understand that farm economics and budgets vary widely between individual farm operations, as well as by year, as the result of a landscape of factors, from water availability to input costs. Because of these variations in cost of production, it is difficult to generalize about the economic status of a given grower or region.
Processing Tomato Production Costs
Though there are many standard expenses within a processing tomato operation, the magnitude of related costs varies widely based on geography, soil type, and weather, among other factors.
The University of California’s latest estimate (2023) for processing tomatoes indicated that an acre could yield $6,348 (46 tons/acre at $138/ton). With total operating costs per acre at approximately $5,248/acre, an acre of processing tomatoes in 2023 could have yielded returns of around $1,100.
- Land (rent or purchase)
- Property alterations (including tillage, bed creation, etc.)
- Irrigation systems (including installation)
- Production and harvest equipment, facilities, and vehicles (including planting equipment, vehicles, etc.)
- Water (generally calculated per acre-inch or acre-foot)
- Water costs in California can be hundreds of dollars per acre-foot, in addition to the costs related to pumping and to facilities, equipment, and labor utilized during irrigation operations.
- Seeds and contract greenhouse starts
- Processing tomato growers often provide seeds to a contract greenhouse which then provides plug starts for transplanting.
- Energy and fuel costs
- Equipment/facilities maintenance
- Inputs (including fertilizer, soil amendments, pesticides and other crop protection, etc.)
- Auditing, compliance, and inspections (often charged either per pound or per acre)
- Property taxes
- Interest on operating capital
- Office Expenses
- Insurance
- Sales and marketing costs
- Though requiring significantly lower quantities than fresh tomato operations, labor can still be a major expense on a processing tomato farm’s balance sheet.
- Though many aspects of processing tomato production are mechanized, from seeding to harvest, labor is still necessary to do daily tasks like operating machinery (spraying, mowing, disking), crop scouting, irrigation, etc. Some of this work can also be hired out to custom businesses that will, for example, provide crop protection application services for a fee, providing the machines and workers in the process.
- For processing tomatoes, post-harvest handling is carried out by the processor, and therefore the grower does not pay related labor costs.
- A processing tomato farm’s labor force is usually composed of a mix of salaried managers, directly hired full-time, part-time, and H-2A temporary workers, and indirect laborers who work for a hired labor/harvest contractor. Additionally, growers may also hire contractors like pest control or crop protection advisors, accountants, and others.
- In California, minimum wage for agricultural workers is $16.00/hour in 2024, with additional requirements around overtime and days off. Actual labor costs as predicted by UC Davis in California is around $29.46/hour for machine operators and $26.51/hour for general laborers and irrigators, including employers’ share of federal and state payroll taxes, workers’ compensation, and other benefits.
- Another labor-related cost to growers includes field sanitation, which primarily includes providing toilets and washing facilities within a certain area of all field crews at all times. These facilities require weekly servicing.
Current Challenges and Key Opportunities for Fresh Market Tomatoes
Grower Challenges: Production of Fresh Market Tomatoes
Successful fresh market tomato growers oversee a complex production system that requires careful and continuous management over a variety of plant life stages. Both field-grown and greenhouse-grown tomatoes are highly sensitive to weather extremes, changes in soil, pests, and other factors throughout the season, and to handling during and after harvest.
- There are many factors to consider when planning tomato plantings including: soil type and pH (though sandy, clay, and loam soils may all be suitable for tomato production), pest and disease history, drainage, water access and quality, and weather. Soil testing is a critical first step in determining whether a given acre is well-suited to tomato production.
- In California, land preparation is largely carried out in the fall (or elsewhere, the end of the previous season) to allow for wet spring conditions and facilitate on-time planting. Land prep includes fall bed tillage and shaping. Additional land preparation tasks including stubble discing, subsoiling, rolling, and laser leveling or landplaning may be required. Fumigation may also be considered a land preparation step, especially in areas like Florida.
- Fresh market tomatoes are grown in raised beds covered with plastic mulch in order to control weed populations. Installing drip irrigation systems first, and then applying the plastic mulch, is often considered part of the land preparation process.
- Tomatoes are rarely seeded and thus are usually transplanted as greenhouse-grown seedlings. Seedling plugs are mechanically planted, or planted by workers seated on a planter, when soil temperatures reach approximately 60 degrees F.
- A common field layout for field-0grown fresh market tomatoes consists of either single- or double-line beds planted at a rate of between 2,500 and 10,000 plants per acre. Plants are spaced between 18” and 30” within the row with 5 to 6 1/2 ft centers. Depending on the location, 60 inch to 66 inch beds are common.
- When selecting a variety, growers will generally choose those which are currently in highest demand, those which they prefer, and those which they feel are well-suited for their farm’s unique conditions. For fresh market varieties, features including fruit size, vine type, maturity, disease resistance, flavor, and productivity will be particularly important.
- Variation in yield potential, days to maturity, and disease and pest resistance can vary significantly, so careful selection of a variety well-suited to the soils, weather, and other farm conditions are crucial to reach both quality and quantity goals.
- For organic fresh market tomato production, organic matter should be incorporated into the soil in advance of planting.
- Growers are increasingly interested in strategies to reduce tillage to improve production and profitability. However, reduced tillage and alternatives like cover cropping are still uncommon due to existing limitations. This is an opportunity for technological advancement.
- Because tomato plants tend to be “bushy” and create vines, most fresh market production systems require infrastructure to keep plants off the ground, where fruit is more likely to be damaged and/or exposed to disease and pests.
- The Florida String Weave System is common in the Southeastern U.S. This system uses wooden stakes that are machine-driven between plants, with twine woven between the stakes to support tomato stems. Ensuring that these systems are put in place carefully and during optimal conditions can avoid damage and the spread of disease.
[FIGURE] Staking/Stringing Diagram
- An alternative is a simple stake system, where a stake is inserted for each plant in the weeks after transplantation and then plant is tied individually to the stake using twine.
- Overhead wire trellises or cage systems are also sometimes used. Trellises are more common for indeterminate varieties, whereas stake and weave systems are more common for determinate varieties.
- Pruning is often not practiced due to high associated labor costs, but would be done at the same time as staking. Pruning is more important for indeterminate varieties, due to the fact that the growth of suckers for these varieties continues throughout the season. Pruning must be done by hand and involves the removal of suckers from the bottom of the plants and from between the main vine and branches.
- Fresh market tomatoes are particularly sensitive to moisture deficiency, and high-quality crops require irrigation throughout the growing season. At the same time, watering too heavily can result in fruit cracking, and prolonged wet periods can lead to disease. Therefore, careful irrigation and moisture management is critical in the fresh market tomato field.
- Sprinkler, furrow, and drip irrigation are all common for fresh market tomato production, and preference varies by farm and region. Drip or trickle irrigation is growing in popularity thanks to its water and energy efficiency, especially when used in conjunction with plastic mulch.
- Fresh market tomatoes tend to use more water as the plant ages, though this can vary based on individual farm and season conditions. Water usage varies depending on plant age, species, climate, and soil type. But other factors, including the energy cost of pumping water, the cost of water itself, a grower’s irrigation strategy, and any rules or restrictions put in place by local water districts could influence the amount of water that growers apply.
- Total amount of irrigation will vary depending on local conditions, including rainfall, and the type of irrigation system utilized.
- Some growers have had success in using slight water deficits during fruit development to intensify the flavor of fresh market tomatoes. This is more common for specialty market tomatoes, like those that will be sundried, where intensity of flavor is a key characteristic.
- Salinity management is a key issue for any grower using irrigation water, due to the tendency of dissolved salts (sodium, chloride, and boron) to concentrate in irrigation water, which is then transferred to soils. For tomatoes in particular, exposure to salts can lead to poor stand establishment and yield loss.
- Modern irrigation management generally involves water budgeting, soil water measurement and monitoring (especially using probes), weather-based irrigation scheduling, and the use of other digital applications. Growers will increasingly hire specialized irrigation managers to plan and manage water allotments, scheduling, and quantity allocations during times of shortage.
- Water access may well be the primary concern in most Californian growing regions, with a chief question being whether irrigation water is to be drawn from surface sources or from a well. Both options have their benefits and drawbacks; namely, surface water can be less expensive to pump, but can be cut when water is not available during periods of drought. Conversely, growers generally have more access to and control over wells, though there are risks related to land subsidence (due to over-pumping) and the possibility of the well drying up.
- Tomatoes are a nutrient-hungry crop, and providing adequate nutrition is critical to producing an abundant and high-quality harvest.
- Fertilization needs for fresh market tomatoes are determined by the results of soil tests and often by foliar tissue testing, which analyzes the composition of leaves to determine where imbalances or deficiencies may exist.
- Initial fertilization often takes place during planting when nitrogen (N) and phosphorous (P) containing water is often applied to the soil at the same time as the seedling. Otherwise, pre-transplant fertilizer is commonly applied, as are sidedressed (midseason) nutrients.
- Requirements and rates for fertilizers will vary depending on a variety of factors, especially the results of soil tests. N, P, and K (potassium) are generally applied annually in fresh market tomato fields, but rates will vary dramatically between farms and regions.
- Additional nutrients, including boron, calcium, zinc and gypsum, are sometimes applied to tomato fields.
- Growers, especially in California, must comply with water quality control standards that limit the amount of fertilizer runoff in water that flows off an agricultural property. This compliance, in addition to the fact that soil amendments are a cost on the farm’s balance sheet, makes careful and precise nutrient management particularly important.
- Tomato growers are increasingly experimenting with additional soil additives like micronutrients, biologicals, and manures. Uses and practices related to these products vary widely.
- There are many pests, including insects, nematodes, weeds, diseases, and invertebrates that tomato growers will have to contend with throughout an ordinary growing season. Read on for more on the products and practices growers use to combat these threats. For more on the pests themselves and how they affect the crop, see Considerations for Pests and Diseases below.
- The development of an integrated pest management plan at the farm level is critical to avoid major pest-related problems (including chemical resistance). Careful monitoring and taking timely action during specific periods of the season and during specific plant growth stages to prevent outbreaks can mean the difference between a successful crop and total destruction.
- The critical periods including pre-plant/bed preparation, planting to stand establishment, vegetative development, harvest, and post-harvest, including handling and in-field activities.
- The first steps in managing pests in the fresh market tomato field are non-chemical, cultural practices like mechanical cultivation, plastic mulch, hand weeding, good drainage, crop rotation, irrigation management, and equipment, field, and worker sanitation. These steps reduce the necessary conditions for disease, insect, or weed populations to take hold.
- Though mechanical options (i.e. cultivation) can help control weed populations, at some points in the season, hand weeding is often required.
- Regular scouting and trapping is also a good practice in fresh market tomato fields to monitor potential outbreaks throughout the season.
- There are also many crop protection molecules available to protect tomato crops from various pests.
- Glyphosate and oxyfluorfen are commonly used to prevent weeds, in addition to trifluarlin, metolachlor, and rimsulfuron.
- Sevin bait, Warrior and Confirm are often used against insect pests in tomato fields.
- Kocide, Sulfur dust, Bravo-Weatherstik, and Quadris Top are commonly applied in response to various diseases.
- Vertebrate pests like gophers are often trapped or poisoned using zinc phosphide.
- In the production of organic tomatoes, there are significantly fewer chemical tools for controlling pests of all varieties. High levels of management and monitoring are therefore required. Tools and solutions for organic, fresh market tomato production represent a major opportunity in this niche.
- Soil fumigation is sometimes used in tomato fields pre-planting as a tool for managing nematode, disease, and weeds.
- In addition to diseases, fresh market tomatoes are often vulnerable to disorders caused by weather and moistures. Cat-facing, gray wall, sunburn, fruit cracking, yellow shoulder, sunscald, and blotchy ripening are all issues that can be managed through good plant nutrition, air flow, and water drainage.
- For many fresh market tomato operations, professional scouts will regularly visit and monitor fields for pests, diseases, and other issues, as often as multiple times a week during the peak season.
- For many pesticides used in tomato production, written recommendations from a Certified Crop Advisor are required. Growers will likely hire a Pest Control Advisor (PCA) or a crop consultant to monitor for pests, nutritional deficiencies, and other agronomic problems, or they may receive the service as part of a service agreement with an ag chemical company. This expert will likely also recommend products and practices tailored to a farm’s specific needs.
- Unlike processing tomatoes, fresh market tomatoes are intentionally picked in an unripened state, and their ripeness is carefully managed during the post-harvest handling process using ethylene gas.
- While tomato harvest in California takes place between July and October, fresh tomato harvest in Florida and other places in the Southern U.S. are more likely “off-season,” taking place between November and January and April-May. The exact timing of harvest on a given farm is affected by variety, planting date, and seasonal climatic conditions. Tomatoes are generally ready for harvest 10 to 15 weeks after planting. Harvesting may last up to 120 days.
- Fresh market tomatoes are harvested entirely by hand, usually during 2 to 4 passes through the field. Workers are looking to harvest “mature green” fruit, which are firmer than fully ripe fruit, but can be ripened in a packinghouse. At a given harvest time, the same indeterminate tomato plant will host fruit in various stages of ripeness (from overripe reds to immature greens).
- Field crews generally work in large teams, where one laborer will be assigned to a given row or part of a row. The worker will fill a bucket (generally around 32 pounds) with mature greens, then carry the bucket to a central loading area, usually a tractor trailer parked in or near the field. The bucket is handed up to a crew boss, and the contents are deposited (often in plastic cartons a few layers thick), and the worker returns to their row. Speed and picking accuracy are paramount, gentle handling at this stage is often not as important due to the hardiness of the unripe fruits.
- Post-harvest handling, including culling, grading, washing, packing, and any further processing, is generally done off-farm in at a packinghouse.
- Two types of tomatoes, tomatoes on the vine (TOV) and vine-ripe tomatoes, are handled and packed in the field. These types are picked at the “breaker” stage, when they are not hard “mature greens” but have more delicate skin and pink/light red coloration. The tomatoes or clusters are placed directly in cartons or trays in the field/greenhouse to prevent bruising and packed in a single layer to avoid crushing. Maintaining proper temperature control is critical for maintaining the quality of these tomatoes.
- The harvest process is generally carried out by hired crews, managed by farm labor contractors. In some cases, farmers pay these contractors directly for the service, and the company is responsible for paying workers. More commonly, the farm pays workers directly, but crew bosses are responsible for recruitment, transportation, and daily management.
- One acre of fresh market tomatoes produces about 50 tons of tomatoes per acre in recent years. Productivity per acre will vary significantly depending on the variety and other factors.
- Though there are many labor demands in fresh market tomato production throughout the year, harvest is by far the most labor-demanding activity. In some cases, harvest becomes so cost-prohibitive that multiple passes cannot be financially justified.
- The high cost of harvest labor in the U.S. is one of the key factors that makes U.S. fresh market tomato production less competitive than similar production in Mexico and in greenhouse operations.
- Greenhouse or “hothouse” fresh market tomato production is common throughout the world, though it tends to be more common in Mexico and Canada than in the U.S. While greenhouse production can be quite profitable, greenhouses also lend themselves to higher costs of production than field growing.
- This indoor style of production allows for greater control of conditions (weather, pests, etc.), which tends to lead to higher production volumes along with more efficient use of labor, space, and inputs. However, it also requires intensive management of things like fertility, water, and pest pressure, and thus can be a difficult crop to grow profitably.
- Winter heating costs in cool regions, and summer cooling costs in hot regions, can be a substantial expense or ultimately eliminate production in some seasons. Greenhouse production often performs best in the market when it’s extending the local availability of fresh market tomatoes.
- Greenhouse tomatoes, like fresh market field tomatoes, tend to be indeterminate varieties, and are trellised vertically to help make efficient use of indoor space. They can either be planted directly into the ground or into a container with perlite, pine bark, Rockwool, or another growing substrate (including water in rare hydroponic systems).
- Though greenhouse systems are less prone to attacks by roving pests than field varieties, diseases, fungus, and pests can become incredibly problematic when they become endemic within the greenhouse. Careful and continuous monitoring of plant health is critical in these spaces.
- Fertilization and irrigation are carefully monitored and highly choreographed parts of a greenhouse tomato system, generally requiring advanced pumping and electrical systems. Sensors are common in the greenhouse to ensure that plants are getting the inputs they need, when they need them.
- Harvesting greenhouse tomatoes is often a more long-term affair, because the greenhouse helps to extend the length of the growing season. Fruit can be harvested either pink (if being shipped locally for retail sale) or green (and treated with ethylene to trigger ripening). Greenhouse harvesting can vary depending on the final product, from picking individual fruits similarly to field harvesting, to clipping vines to sell “on the vine” fruits packaged in clusters.
- Though large slicing tomatoes, which are common in food service, are more likely to be grown in field settings, greenhouses are ideal production areas for supermarket-type fruit, including on-the-vine.
- The overall size and scale of the farming operation, and what (if any) other crops/varieties the farmer grows.
- The level of vertical integration in a vegetable business.
- Whether the land is owned or rented by the grower.
- Infrastructure availability (road access, irrigation systems, building locations, etc.)
Grower Challenges: Economics of Fresh Market Tomatoes
Common Fresh Tomato Farm Business Model
Tomato growers sell fresh produce to distributers, wholesalers, retailers, food manufacturers, food service providers, and other buyers, or process their products themselves and sell ingredients (frozen, canned, etc.) or finished products (i.e. tomato sauce or paste).
Fresh market tomatoes are often subject to a packing contract and thus will move all of their tomatoes directly to a packinghouse at harvest where the fruit will be purchased then packed, processed, and sold by a distributor. Today, relatively few fresh market tomato growers produce a vast majority of U.S. grown tomatoes, and many of the largest growers have become vertically integrated growers/packers/shippers. Much of the U.S. fresh tomato supply is grown outside the U.S.
Therefore, the success of a fresh market tomato farm business will depend on the yields achieved, the quality of the product, the price, and the distribution networks a given farmer is able to access. Additionally, fresh market tomato growers must consider other costs such as labor, fertilizer, pest management, land costs (including land rent if leasing), as well as the potential for unexpected weather or market conditions when managing their farm business year to year.
[FIGURE] Tomato Retail Pricing: Conventional & Organic
The yield of the average acre of fresh market tomatoes can vary significantly based on several factors, especially variety and geography. Many factors also determine the actual price per unit of tomato a given grower receives. Because of the difficulty of determining these two factors, in addition to the impossibility of generalizing about input costs and other expenses, it’s difficult to determine whether tomato production in a given season on a given farm is profitable.
The price that fresh market producers receive is dependent upon contracted price, variety, timing, quality, and other market factors. Specific quality standards vary by geography and purchaser.
Fresh Tomato Crop Budget
We highly recommend taking time to understand crop budgets before having a conversation with growers to better understand their needs and costs.
- Crop Enterprise Budget Example #1: Tomato (Fresh Market, Furrow Irrigation) | San Joaquin Valley South/North (2007)
- Crop Enterprise Budget Example #2: Cherry, small farm | San Joaquin Valley South (2005)
- Crop Enterprise Budget Example #3: Tomato (Fresh market), Missouri (2016)
It is critical to understand that farm economics and budgets vary widely between individual farm operations, as well as by year. These variations are the result of many factors, from water availability to input costs. It is therefore difficult to generalize about the economic status of a given grower or region.
Tomato Production Costs
Expenses in fresh market tomato operations can vary widely depending on geography and style of production, among other things. However, there are general categories of costs that tend to be consistent across diverse operations.
- Land (rent or purchase)
- Property alterations (including tillage, bed creation, land-leveling, etc.)
- Irrigation systems (including installation)
- Production and harvest equipment, facilities, and vehicles (including planting equipment, vehicles, worker housing, etc.)
- Water (generally calculated per acre-inch or acre-foot in California)
- Seeds
- Energy and fuel costs (including the cost of pumping)
- Equipment/facilities maintenance
- Post-harvest transportation costs
- Inputs (including fertilizer, soil amendments, pesticides and other crop protection, etc.)
- Auditing, compliance, and inspections (often charged either per pound or per acre)
- Property taxes
- Insurance
- Sales and marketing costs
- Fresh market tomato production is one of the most labor-intensive sectors of vegetable production in the U.S., requiring some amount of hand labor at essentially every point throughout the season.
- Harvest is the most labor-intensive part of the fresh market tomato season, often requiring dozens or hundreds of workers days or weeks to complete all passes through a field and harvest the whole crop.
- Additionally, workers are often involved in both planting and staking/pruning, which may require fewer laborers at any one point in time (mainly due to the fact that these tasks are less laborious). Depending on the field system and the time of year, workers may also be required to carry out tasks like hand weeding.
- There are also machine operators involved in fresh market tomato production who carry out tasks like spraying, mowing, disking, and irrigation. Some tasks that require additional training, like crop scouting, also require man hours in the field. Some of this work can also be hired out to custom businesses that will, for example, provide crop protection application services for a fee, providing the machines and workers in the process.
- Post-harvest handling is usually not carried out by the farm, but by a packinghouse. Post-harvest tasks like washing, packing, and grading are much more highly mechanized than many field tasks.
- Because of the extra handling and packaging required, harvesting TOV and vine-ripe tomatoes often requires a more skilled crew and usually is more costly and with greater losses. Therefore, it tends to be higher cost, and the products require a higher price to be profitable.
- A tomato farm’s labor force is usually composed of a mix of salaried managers, directly hired full-time, part-time, and H-2A temporary workers, and indirect laborers who work for or are organized by a hired labor/harvest contractor. Additionally, growers may also hire contractors like pest control or crop protection advisors, accountants, and others.
- In California, minimum wage for agricultural workers is $16.00/hour in 2024, with additional requirements around overtime and days off. Actual labor costs as predicted by UC Davis in California is around $29.46/hour for machine operators and $26.51/hour for general laborers and irrigators, including employers’ share of federal and state payroll taxes, workers’ compensation, and other benefits. See the Toolkit’s Farm Labor in the United States page for more information on wages and requirements in other states.
- Another labor-related cost to growers includes field sanitation, which primarily includes providing toilets and washing facilities within a certain area of all field crews at all times. These facilities require weekly servicing.
Key Pressures on Tomato Growers
Tomato growers face many pressures that are common across the three growing types (processing field, fresh field, and greenhouse) and to other row crop vegetable growers the world over. The tomato sector is constantly advancing, both in terms of production and economics, through activities like plant breeding, crop protection research, and advancing climate-smart agriculture on the one hand, and activities like improving marketability, supply chain efficiency, and exploring new and emerging consumer demands and opportunities on the other. A few key pressures for tomato growers stand out.
Costs are on the rise for nearly every input to tomato farming, from land costs to labor, fertilizer to equipment. Crop prices do not necessarily reflect that steadily increasing cost of production that growers face, so savvy farmers look for ways to reduce the costs of inputs whenever possible.
Direct costs and accumulating risks around food safety are paramount for fresh produce growers like tomato farmers. The fast-evolving food safety regulatory landscape, in California in particular, has meant farmers have had to work hard to stay on top of compliance and related costs.
Additionally, growing consumer skepticism and regulation around the use of pesticides, herbicides, and fungicides have motivated farmers to pursue alternative practices that limit these inputs, which can also lead to increased costs. Especially in organic tomato production, where use of crop protection chemicals is already limited, alternative pest control practices and tools are in high demand.
High labor costs is the primary reason the U.S. producers of fresh market tomatoes continue to lose marketshare to foreign producers — mainly from Mexico. That is why labor has become the focus of interest in reducing costs on farms, especially as costs (both direct and indirect) related to labor continue to rise and growers see increasingly viable solutions to reducing the number of people employed in the field. Increasing labor shortages have added to this incentive.
Currently, commercial processing tomato harvesting is usually carried by fully mechanical, though not autonomous, equipment. These tools have drastically reduced the amount of labor required during harvest on most commercial operations, both in the field and on the packing line. Planting is also a significantly mechanized activity.
However, other tasks on the processing tomato farm (and across fresh market field operations) — including bed shaping, weeding, and irrigation — are also targets for advancing mechanization and automation, though there already are some autonomous tools available for tasks like chemical application, mowing, and disking (from companies like Monarch Tractor, Blue White Robotics, InsightTRAC, and FieldIn).
For fresh market tomato operations, very few field tasks are automated or mechanized, and vast amounts of hand labor are still required. Harvest is the most obvious target for mechanization/automation, though also the most difficult, due to the sensitivity of the fruit, the plants themselves, and the need to evaluate the stage of ripeness before removing a fruit from the vine. Other tasks including staking and pruning may also good targets for automation/mechanization.
Some of the largest advances in mechanized tomato harvesting have been made for greenhouse operations, where production systems can be made more standardized, making them easier for robotic tools to navigate without damaging plants and fruit. A part of this success has also required research into tomato genetics to select for varieties and individuals that do not require as much force to remove fruit from the vine.
Technologists designing autonomous and mechanical tools to reduce labor demand in tomato production should consider unique features of the industry.
- All automation or mechanization tools will likely require long battery lives, sturdy, rugged construction, and other reliability refinements to deal with sandy field conditions and usage around the clock to travel relatively long distances.
- In most cases, farmers rely on mechanics on-site and do not have access to electronic/robotic engineers.
- High-speed internet and high-bandwidth cellular services are not a given in rural areas.
- Field factors including bed size, row, and planting spacing will vary, based on (among other things) variety, cultural practices, climate, and preferred management practices. The amount of space between beds and rows will have a significant impact on equipment access.
- Predictive analytics that help farmers determine and plan for harvest as far in advance as possible are also extremely useful for controlling labor costs and improving labor efficiencies. Developing systems may be well-positioned to be adapted to this market.
- Especially in production areas in California, a trend towards increased on-farm electrification is already underway, so there is more pressure for future mechanized and autonomous tools to rely on battery or other possibly renewable power sources.
- Harvest tools for tomato growers generally fall into two categories: tools that remove the fruit from the vine themselves (largely not commercially available) and tools that assist workers during the harvest process (some currently available).
- A significant amount of investment has gone towards developing mechanical or autonomous harvesting tools in tomatoes, though there are substantial headwinds. Limitations related to accuracy, speed, the need for careful and delicate handling, adaptation to complex environments, and the cost of potential solutions have largely remained unsolved.
- Accurate picking is essential for optimal yield and minimizing waste. Harvesting robots need to be able to differentiate between ripe and unripe fruit based on their color, size, and firmness. Robots equipped with machine vision software and sensor arrays can identify ripe fruit with accuracy. However, many existing robots still struggle with accurately assessing the ripeness of tomatoes, leading to inefficiencies and potential damage to the fruit.
- The ability of equipment to pick tomatoes without causing damage to the plant or the fruit itself is critical. The grip strength and precision of the robotic arms need to be finely tuned to handle the sensitive skin and plant tissue. Gripping too tightly can lead to bruising or crushing while gripping too loosely can result in dropping or otherwise damaging the fruit or plant during the picking process.
- Tomato plants grow in a complex and dynamic environment for robots. Plants vary in size and structure, and might have fruit at different maturity levels present in different parts of the plant, making it challenging for robots to navigate and maneuver effectively. Additionally, variations in lighting conditions (due to leaf shadow, different solar positions, etc.), different ripening stages, and foliage density require robots to adapt their picking techniques accordingly. Developing robotic strategies that can handle these complexities is essential for achieving higher accuracy rates and to avoid missing any obscured fruit.
- Efficiency and speed are critical factors in successful automation. Harvesting tomatoes is a time-sensitive task, as the fruit can become overripe in a matter of hours. Therefore, the technology used in robotic systems needs to be fast enough to keep up with the demand and efficiently harvest the tomatoes within the optimal timeframe. Speed can be affected by various factors, including the tool’s movement capabilities, the processing speed of any digital systems, and the overall design and efficiency of the harvesting mechanism. Achieving high-speed automation without compromising accuracy is a big technical challenge.
- Though picking equipment has the potential to offer significant cost-savings to growers over time, if the upfront cost of a technology is too high, they simply will not be able to make the investment. As organizations imagine and create autonomous and mechanized harvesting tools for the tomato industry, grower cost constraints and ability to pay should be carefully considered. This is especially relevant when considering the U.S. market for fresh tomato production, where high costs and stiff international competition is already motivating industry declines.
- More attention has been paid to the relatively easier challenge of increasing worker efficiency by carrying harvested tomatoes to the collection area, rather than requiring workers to lift and carry heavy buckets themselves various distances throughout the day. Examples of these kinds of harvest-aids include offerings from companies like Burro.
- Weed elimination technologies are on the rise, though few are currently making strides in the row crop vegetable space. However, the advances seen with tools like John Deere’s See and Spray technology seem likely to translate into tomato production sometime in the future.
- Machine vision will likely be a critical component of these types of innovations, which could also extend into crop protection spraying of other pests at the in-field level and may even facilitate non-chemical pest management practices in the future.
The availability of water is a top concern among most California farmers, especially in water-constrained regions in the southern deserts. Efficient production, and therefore profitability, often comes down to the benefits and costs related to water.
In recent decades, California has suffered significant droughts, many of which have lasted for multiple years. These have led to limitations on surface water access, even for those with the most senior water rights.
Growers have increasingly turned to ground water pumping, though issues with land subsidence (the physical sinking of the land due to absence of sub-surface water) and the undermining of other private and municipal wells have led to greater scrutiny and regulation on the use of ground water for agriculture in the state.
Finally, high levels of irrigation can lead to additional challenges, like the build-up of salts in the soil. This can degrade the quality of soils and, when it becomes extreme, can prove toxic to plants and cause yield reductions.
Growers increasingly rely on advanced software and hardware tools to precisely manage their irrigation water.
Advanced irrigation systems that bring together the advantages of drip irrigation and similar water-saving delivery methods with soil moisture sensors have helped growers reduce their water usage and avoid some of the challenges inherent in applying large amounts of irrigation water. Additionally, data from remote sensors (drones, satellites, etc.) have been added to data from local sensors to create advanced irrigation planning and forecast tools so that growers can determine, often days in advance, exactly how much water a given field will need — creating greater opportunity for growers to carefully plan an efficient irrigation schedule.
Technologists are looking to further advance irrigation technology with the adoption of control technologies, which allow growers and irrigators to control pumps and valves on irrigation systems remotely. By doing this (rather than having an employee manually turning valves, checking water pressure, etc.), new possibilities arise around how irrigation can occur, especially with respect to frequency.
The farther future of control systems opens the door to autonomous irrigation, where at some point, highly refined sensors will be able to communicate directly with control technologies, so that a field or even an individual plant could receive water exactly when they need it without direct human intervention.
Increasing the water efficiency of plants themselves, both through novel breeding and through genetic manipulation, is also a potential solution going forward.
Consideration for Pests and Disease
Tomatoes are among some of the most susceptible plants to pests and diseases that can cripple plant health, damage fruit, and lead to reduced quality and yield. The list of insects, weeds, diseases, fungi, and vertebrates that might be a threat to a given tomato field or greenhouse is long and will vary substantially based on geography and season. There is significant demand for additional tools to manage pressures on these vulnerable plants.
When exploring solutions for growers, care should be taken to avoid increasing opportunity for pests and disease to proliferate throughout the farm, for example, by being transported on equipment. There are several major points throughout the season when growers need to be particularly vigilant about specific pests, and during which only certain kinds of pest control measures are useful, effective, or allowable. Find more information on recommended Integrated Pest Management (IPM) regimes for tomatoes here.
Insects and Nematodes
Various insect species are known to prey on tomato plants at nearly every stage of their development. Insects can reduce growth directly by consuming leaves, roots, or stems, can damage blossoms or fruit, and can transmit diseases or otherwise cause physiological damage. Some insects are more likely to infest seedlings or newly set plants; others are more prone to consuming mature foliage, fruit, or sap from tomato plants. The following is a selection of insects that may impact tomatoes:
Fungi, Diseases, Nematodes, and Physiological Disorders
Diseases are common issues in field tomato production, and can reduce yields by as much as 40%. Tomatoes are susceptible to both soil-borne and foliar diseases. Common diseases, viruses, and fungi include:
- Bacterial spot, bacterial speck and canker, Verticillium wilt, fusarium wilt, Alternaria leaf blight, Septoria leaf spot, gray leaf spot, early blight, anthracnose, tobacco mosaic virus, sclerotinia rot, nematodes (specifically root-knot nematodes), Southern blight, walnut wilt, gray mold, late blight, TSWV, TMV and ToMV, TEV, and TYLCV, Alfalfa Mosaic, Black Mold, Curly Top, and Damping-Off
Physiological disorders often result from poor nutrition, over/under exposure to water, or other environmental stresses like extreme sun or wind.
Weeds
In tomato fields and beds, weeds compete with plants for nutrients, water, and light, and can contribute to the growth and spread of insect and disease problems. Different weeds are of particular concern during different seasons, and growers must stay on top of weed populations and ensure effective control method applications.
- Weed types vary depending on geography and soil type, but some common varieties include: mustards, radishes, pigweeds, velvet leaf, lambs quarters, Eastern black nightshade, hairy galinsoga, morning glory, purslane, yellow nutsedge, annual grasses. Egyptian Broomrape is an emerging weed in California and requires special treatment.
Managing weeds requires care to ensure that eradication actions don’t lead to soil erosion or compaction, which can also have deleterious impacts on nutrients and water penetration.
Repeated use of herbicides with the same mode of action can also lead to herbicide resistance. An integrated weed management plan, as part of a broader integrated pest management plan, should be developed for a given farm to prevent long term issues.
- Tillage, flaming, and chemical control methods are most common for weed management pre-planting. Otherwise most weed populations post-planting are controlled with plastic mulch.
Vertebrates
Vertebrates are not a substantial problem in tomato fields, though they can be a nuisance. Mechanical traps are generally a good solution to this issue. Damage can be done, to plants and fruit, by rats, deer, coyote, feral hogs, and birds.
Consideration for Climate Change
Climate change and weather are having and will continue to have an impact on tomato production both domestically and globally, though the exact nature of these impacts in any specific region are difficult to accurately predict. In general, tomatoes are a warm season crop, and soil water content and air temperature can have significant impacts on the quality and quantity of the annual crop. Significant regional shifts in temperatures and irrigation water availability are likely to have major impacts on the future of the tomato industry around the world.
[FIGURE] Change in area suitability for tomato cultivation between 1975H and 2050
- Shifting Temperatures. Tomatoes are very temperature sensitive. Seeds need to be between 65 and 85 degrees to germinate, and fruit production requires temperatures in a relatively narrow band between 60 and 70 degrees. Warmer year-round temperatures, and higher peak temperatures even for a short period of time, can induce heat stress and cause tomatoes to drop blossoms, wilt, and increase the likelihood of disease and physiological disruptions, leading to reduced yield and quality. Cold temperatures, even for a short time, can also reduce plant health. Continuously rising average and peak temperatures in key tomato production regions like Florida are already reducing the viable length of the growing season. All these impacts will likely cause tomato production to shift away from the poles, and will create even more incentive to turn to greenhouse production. As temperature patterns evolve, growers will need to adjust their management practices, including irrigation schedules and variety selection. Growers in today’s major growing regions (i.e. California and Florida in the U.S.) should prepare for greater competition from new geographies going forward. Changes in temperature, water stress, and even CO2 levels can also affect plant physiology and mineral uptake, likely creating additional challenges for growers in the future.
- Shifting Growing Regions. As temperatures continue to vary and growers consider moving production to more temperate climates, a significant limitation will be the need for nearby packing and processing infrastructure both for processing and fresh market tomatoes. Infrastructure to receive, sort/grade, package and/or process tomatoes is often extensive and requires significant financial outlay to establish. Existing growing regions like the Central Valley in California and Central Florida already have tomato processing infrastructure. Shifting that capital to other geographies will come at a substantial cost. Beyond infrastructure investments, growing in new regions will also likely require new advancements in tomato genetics, varieties, practices, and crop protection tools as these vulnerable plants are exposed at scale to new geographies. Though greenhouses will help allow more tomato production in a wide spectrum of geographies, shifting temperature regimes will likely make greenhouse use cost prohibitive in some areas due to the cost of cooling and/or heating.
- Water Scarcity. Changes in precipitation patterns triggered by climate change will likely put pressure on some current tomato growing regions, due to changing demand for, cost of, and overall access to irrigation water. While some regions are likely to experience more frequent and severe droughts, others are likely to deal with flooding and extreme wetness, both of which pose significant risks to tomato production. Tomatoes need soils to be kept consistently moist throughout the growing season to maintain optimal plant health, but water-logged soils can also cause increased disease incidence and physiological damage. Related irrigation issues related to soil degradation, including increased erosion, soil salinity, and nutrient leaching will also likely be an increasing issue in areas where more irrigation is required due to decreased rainfall. Improved water management practices, such as water conservation measures, are likely to remain top of mind for growers alongside demand for more financial risk mitigation tools like specialized insurance policies.
- Pest and Disease Pressures Intensify. Given the extreme sensitivity of many tomato varieties to pests and disease, any substantial change in these pressures is likely to cause major disruptions to production. Climate change is likely to change both the geographic range, season, and intensity of pest and disease pressures. Likely changes in temperature and humidity levels will not only lead to more substantial populations, but may also alter the time of year when they emerge or die-off. This can in turn affect the tools available to growers to control them. Tomato leafminer and late blight are two examples of pests that are likely to become more problematic in the future. Growers will need to adapt their pest management strategies and be vigilant for emerging threats.
- Extreme Weather. From heatwaves to floods to high winds, increasing instances of extreme weather are likely to have an impact on tomato production. Extreme weather affects fields in many ways, from damaging plants to altering patterns of pest predation. In general, however, extreme weather increases risk to the yield and quality of the crop. Though it’s impossible to prevent impacts from all extreme weather, growers will likely be increasingly interested in tools that allow them to mitigate risks related to these events.
Additional Resources
- USDA National Retail Report - Specialty Crops (latest)
- USDA Vegetables 2023 Summary
- Worldwide tomato production (2023) | World consumption study of tomato products (2024)
- Crop Time Lines for Fresh Market Tomatoes in California (2002)
- OEC Global Crop Profiles: Tomatoes
- Sustainable Production of Fresh-Market Tomatoes and Other Vegetables with Cover Crop Mulches (2007)
- Tomatoes: Presented by FDA and UC Davis WIFSS (Production and handling information)
- Tomatoes: AgMRC (Market information, 2023) | Overview
- Processing Tomato Production in California
- Commodity Profile: Tomatoes, Fresh Market (2005)
- Growing tomatoes amidst climate change (2024)
- Commercial Production of Fresh Market Tomatoes (Oklahoma State University, 2017)
- Tomato Production (PennState Extension - 2006)
- Tomatoes (Field Grown, Caged, Trellised or Staked) Crops Guide (Texas A&M)
- Commercial Tomato Production (University of Tennessee)
- Field Production of Organic Tomatoes (eOrganic)
- Fresh-Market Tomato Production in California (2000)
- Commercial Tomato Production Handbook (University of Georgia Extension)
- Tomatoes - the world’s most popular vegetable (Global Alliance for Improved Nutrition, 2020)
- Tomatoes: An Extension Review of the Associated Health Impacts of Tomatoes and Factors That Can Affect Their Cultivation (2022)