California Fruit and Vegetable

Category: Leafy Greens

  • UC Davis Seeks Mighty Bacteria-Resistant Lettuce

    Maeli Melotto and her team at the UC Davis Department of Plant Sciences are looking for strains of lettuce that are genetically stronger at resisting bacteria that can make people sick. Their work has led to the identification of a gene that could play a role in the plant’s susceptibility to E. coli, a bacterium that causes potentially lethal intestinal illness.

    If the team could develop lettuce that can fight off the bacterium, that would avoid thousands of cases of sickness each year, cut production costs for farmers and save millions of dollars in public health expenses.

    Lettuce “sweats” substances onto the surface of leaves that E. coli and other bacteria can eat. In addition, bacteria can live just below the surface of lettuce leaves. Melotto, a professor specializing in the interactions between plants and microbes, is studying the genetic factors that determine how long bacteria can endure in the leaves. She and her team looked at more than 300 samples of lettuce and how they react to the pathogens, identifying the gene responsible for letting them in.

    Their next step is to test whether removing that gene could make lettuce more resistant to bacteria.

    Maeli Melotto, a professor in the UC Davis Department of Plant Sciences, and her team have found a gene she thinks governs whether lettuce can resist bacteria such as E. coli. (Trina Kleist/UC Davis)

    Some lettuce more likely to “feed” bacteria

    In a related study, Melotto’s team is looking at the surface of lettuce leaves and the layer just below the surface, which has tiny spaces where bacteria can live. The researchers want to learn what natural chemicals are in these two areas, and what compounds lettuce releases onto the surface of leaves that bacteria can use as food. Melotto expects to find that some types of lettuce are genetically disposed toward “feeding” bacteria.

    Melotto presented her findings at meetings earlier this year of the California Specialty Crops Council and the California Leafy Greens Research Board. Her work is funded in part by a five-year grant from the National Institute of Food and Agriculture.

  • Microgreens Offer Chance to Grow Vegetables for Customized Health Needs

    Broccoli is well known for its particular flavor, healthy properties, and ability to help ward off certain types of cancer, but there’s more to this veggie than the florets found in salad bars, stir fries, and your favorite broccoli cheese soup.

    As proof that good things can come in small packages, baby broccoli — one type of “microgreen” — packs as much as four times the number of cancer-fighting antioxidants as its adult counterpart. On top of that, you can grow them easily and rapidly to ensure that you have a ready supply.

    “Broccoli microgreens are young and tender greens harvested when the first true leaf appears,” explained Tianbao Yang, plant physiologist at the Agricultural Research Service’s Food Quality Laboratory in Beltsville, MD. “As compared to their mature counterparts, broccoli microgreens contain higher amounts of phytonutrients and minerals.”

    Phytonutrients are natural compounds in plants that may help prevent disease. In particular, broccoli contains large amounts of glucosinolates, which change into other chemicals during the cooking process and digestion. Studies have shown that these chemicals help reduce the development and growth of various diseases, including prostate, breast, colon, skin, bladder, and oral cancers.

    According to Yang, glucosinolates are antioxidants mainly found in cruciferous plants, such as broccoli, kale, radish, and cabbage. Epidemiologic studies suggest a correlation between consuming broccoli with reduced effects of aging, asthma, and other chronic pulmonary diseases.

    These natural health benefits are not hard to find, Yang said. “Microgreens are easy to grow and handle and have a short production cycle. They are a good choice for urban farming and controlled environment agriculture.”

    Microgreens may be an option for people who want to garden but have limited — or no — outdoor space to grow their own produce. Home gardeners can grow microgreens indoors or outside, in soil or hydroponically— that is, in water. Not only that, but broccoli microgreens may be ready to harvest in as little as a week. Information on hydroponic gardening is readily available from many online sources.

    Yang offered two simple tips that home gardeners can use to get even more healthful benefits from their baby broccoli: adding calcium salt to the hydroponic solution or applying it as a spray; and/or putting the sprouts under ultraviolet B (UVB) light for 1-2 hours per day.

    Both calcium salt and UVB induce a stress response in the plants that promotes the production of glucosinolates. The methods can be used together or separately.

    Yang believes that, in the future, it could be possible to grow personalized vegetables for specific populations with chronic diseases.

    “Fruits and vegetables are an important part of diet,” Yang said. “They are rich in a variety of phytochemicals and minerals that are beneficial to human health. Controlled environment agriculture provides the opportunity to manipulate plant growth conditions and design beneficial nutrients. Microgreens are one of the best candidates for this.” — By Scott Elliott, USDA-ARS Office of Communications

  • Texas A&M AgriLife Research to Improve Organic Spinach Production

    Despite the greatly increasing consumer interest for organic spinach in the U.S. and worldwide, production is not keeping pace with demand.

    Vijay Joshi, Ph.D., will lead research on a three-year project to improve organic spinach productivity. (Texas A&M AgriLife photo)

    To help overcome some of the challenges facing organic spinach production, Vijay Joshi, Ph.D., a Texas A&M AgriLife Research plant systems physiologist at the Texas A&M AgriLife Research and Extension Center in Uvalde, was recently awarded a grant from the U.S. Department of Agriculture’s National Institute of Food and Agriculture, NIFA.

    Joshi, also an associate professor in the Texas A&M Department of Horticultural Sciences, will lead the three-year research project, titled “Systems Approach to Maximize Organic Spinach Productivity.” The project is funded under NIFA’s Organic Agriculture Research and Extension Initiative. An initial first-year funding of more than $450,000 was provided for the project, with total funding to be about $1.5 million.

    Project collaborators include Ainong Shi, Ph.D., associate professor in the Department of Horticulture at University of Arkansas; Micaela Colley, program director for the Organic Seed Alliance, Port Townsend, Washington; and Alice Formiga, a professor of practice in the Oregon State University Department of Horticulture.

    Addressing Problems of Low-Input Organic Spinach Production

    Spinach, the most popular nutrient-rich staple vegetable, can have high pesticide residues when grown conventionally. Organic production eliminates the use of inorganic fertilizers and pesticides, but most spinach varieties used for low-input organic production are poorly adapted and cause substantial yield gaps as compared to conventional farming.

    “Organic spinach growers need varieties adapted to growing conditions and qualities demanded by consumers,” Joshi said.

    Nutrient acquisition, abiotic stresses like extreme temperature, nutritional attributes and limited seed availability are critical challenges in organic spinach production. To help with these challenges, the project will expand knowledge of potentially beneficial microbes.

    “This project will include developing varieties with an improved neutracitical profile and nitrogen-use efficiency,” Joshi said. “It will also seek to improve our understanding of the role of microbes in the soil and spinach roots and leaves, adapted exclusively to low-input organic production.”

    He said another challenge is how to enhance seed production and availability.

    “We will create a breeding model to develop varieties with higher organic seed productivity,” Joshi said. “We will also be investigating the use of natural variation in spinach germplasm. This will be accomplished through genome-wide association analysis and genomic prediction.”

    Project Expectations

    Joshi said the results of this project enhance efforts develop organic spinach varieties to enhance productivity and quality.

    “A productive research project is one that would ensure high-quality, nutritionally beneficial and safe food for society produced through sustainable agriculture,” Joshi said. “This new research will certainly be in keeping with that goal.”

    Project results will be disseminated nationally through eOrganic, Organic Seed Alliance and other university-initiated outreach programs, agricultural publications and field days.

  • FDA Findings from Yuma Romaine Lettuce Sampling

    The FDA is releasing the findings of a sampling assignment for which FDA collected and tested romaine lettuce from commercial coolers in Yuma County, Arizona during February and March 2021. The agency tested the lettuce for Shiga toxin-producing Escherichia coli (STEC), specifically enterohemorrhagic Escherichia coli (EHEC), and Salmonella spp. This assignment was part of the FDA’s ongoing surveillance following multistate E. coli O157:H7 outbreaks of foodborne illness in recent years linked to or potentially linked to romaine lettuce.

    The agency’s goal in conducting this assignment was to determine whether the target pathogens and specific strains may be present in romaine lettuce from the Yuma agricultural region, to help prevent foodborne illness when possible. If product that tested positive for EHEC or Salmonella was found, the Agency planned to work with industry and state regulatory partners to identify the cause (e.g., farm follow-up investigation) to inform future regulatory and/or research efforts and to develop strategies that could help preventive additional outbreaks.

    The FDA collected 504 romaine samples for EHECs and Salmonella spp., with the testing performed by an independent laboratory on contract, as part of a pilot project. Each sample consisted of 10 subsamples, and each subsample was made up of at least 300 grams of romaine lettuce (whole heads, hearts or individual leaves).  Collecting and testing samples composed of multiple subsamples increases the probability of detecting pathogens if present, since microbial hazards may not be uniformly present.

    During the assignment the FDA detected E. coli O130:H11 in one sample.  The isolate was found to be moderate to high risk and could be capable of causing severe illness in humans, though it was not linked to any known human illnesses, and no product ever reached consumers. The owner of the product did not harvest the remaining crop from the field where it was grown.

    In response to the finding, FDA conducted an investigation at the farm to identify possible sources and routes of contamination. The FDA was able to collect romaine lettuce from the field, multiple samples of soil, water, sediment, and animal fecal material. FDA also assessed farm equipment and other surfaces. Only one of the total 24 samples yielded STEC (specifically, E. coli O116:H-). This sample came from the outer leaves of romaine lettuce. The strain was further characterized as low risk to human health, and FDA’s analysis indicated the strain was not linked with any past known foodborne illness outbreaks.

    Helping to ensure the microbiological safety of leafy greens continues to be a priority of the FDA. Romaine lettuce and other leafy greens are among the most widely consumed vegetables in the United States and are an important part of a healthy diet. The agency is working on several fronts to help prevent microbial contamination of leafy greens and to prevent outbreaks of foodborne illness. Chief among these efforts is the FDA’s Leafy Greens STEC Action Plan (LGAP), which features public health approaches related to response, prevention and addressing knowledge gaps. The FDA continues to collaborate with industry, states, academia and other stakeholders through activities outlined in the LGAP to address this important public health issue.

  • Field Fresh Farms to Introduce Organic Baby Hemp Greens at PMA Foodservice

    Field Fresh Farms (fieldfreshproduce.com), a leading grower/shipper of conventional and organic produce, will be introducing its new baby hemp greens product at PMA Foodservice at booth 506 in Monterey, CA July 21-22.

    Available as a baby leaf offering and as an ingredient in leafy green mixes—to both foodservice and retail—this specialty, new-to-market salad green is packed with nutrients (including Omegas 3, 6 and 9, potassium and calcium) and features unique flavor profiles ranging from citrusy to earthy. Containing extremely minimal to no THC, baby hemp greens allow consumers to receive the exceptional health benefits of hemp without the effects of THC. This product is certified organic and will be marketed under the Beach Road Organics label.

    Grown by Field Fresh Farms’ fourth-generation, family-owned parent company Dobler & Sons in an exclusive growing partnership with Solare Ventures Inc. (solareventures.com), the licensee of various proprietary certified industrial hemp seeds, this new product has undergone extensive trials and testing to ensure it meets and exceeds USDA, FDA and California state regulatory guidelines. 

    “We look forward to introducing this new, healthful specialty green to our foodservice and retail customers. Even though this product contains no controlled substances, we conduct thorough THC testing of each crop to ensure we meet the rigorous FDA and USDA standards. Since this is such a new product, we look forward to educating customers and consumers about the benefits of this hemp-based edible green,” said Craig Dobler, owner of Dobler & Sons. “We believe the effort is worth it as this novel product is sure to catch the interest of chefs and consumers. It is also a sustainable crop that can be grown year-round on California’s Central Coast.”

    With a short crop cycle of 18 days from planting to harvest, and a long shelf life of over 17 days, baby hemp greens are an excellent transition and shoulder crop with production that can be quickly ramped-up to meet demand. 

    Product branding and retail packing is in development and will be unveiled later this year, while raw product is available now for foodservice and other producers. “In addition to being an excellent source of nutrients and complement to a variety of salad greens, we’re excited to see how chefs and consumers get creative with the unmistakable leaf shape, taste and texture,” Dobler concluded. 

    About Field Fresh Farms:
    Field Fresh Farms is a leading grower/shipper of sustainably grown conventional and organic produce. Headquartered in Watsonville on California’s Central Coast, the company provides top-quality head lettuce, arugula, romaine hearts, spinach, spring and Mega mixes, proprietary baby hemp greens, and other products to foodservice and retail customers across North America under the Field Fresh Farms and Beach Road Organics labels. They operate year-round in California and Arizona. Visit fieldfreshproduce.com or call (831) 722-1422 to learn more.

    About Dobler & Sons:
    Dobler & Sons is a fourth-generation grower and wholesaler of quality fresh produce. Founded in 1953 and based in California’s Central Coast, Dobler & Sons provides high-quality fresh vegetables including lettuce, arugula, spinach, spring mix, and proprietary baby hemp greens to foodservice customers and growing partners, year-round. Call (831) 722-3057 to learn more.

  • FDA to Implement Sampling Effort for Lettuce Grown in Salinas

    The U.S. Food and Drug Administration will be collecting and testing samples of lettuce grown in California’s Salinas Valley from local commercial coolers from May through November 2021. The agency will test the samples for Shiga toxin-producing Escherichia coli (STEC), including E. coli O157:H7, and Salmonella spp. as part of ongoing surveillance efforts following reoccurring outbreaks linked to this region, including most recently in the fall of 2020.

    The FDA assignment will direct sampling to be conducted at commercial cooling and cold storage facilities where field heat is removed from harvested lettuce and where product is cold-stored before processing. Sampling may include pre-cooled product (preferred) or post-cooled product. Sample collection at commercial coolers helps the FDA efficiently obtain samples from multiple farms at centralized locations and facilitates prompt traceback and follow-up if contamination is detected.

    The agency plans to collect and test a total of approximately 500 post-harvest samples of iceberg, leaf and romaine lettuce. Each sample will consist of 10 subsamples, each made up of one head of lettuce (trimmed, cored and possibly wrapped), or in the case of romaine lettuce, loose leaves or one package of hearts.  FDA laboratories will conduct all testing.

    During this sampling assignment, the FDA will take extra precautions to help ensure the safety of agency investigators and firm employees during the COVID-19 pandemic. FDA investigators will preannounce their visits to firms per the Agency’s COVID-19 safety practices. They will be outfitted with personal protective equipment (PPE) and will carry out their work while adhering to local, state and applicable CDC guidance.

    Helping to ensure the safety of leafy greens remains a high priority of the FDA. This assignment adds to other work underway in collaboration with stakeholders in the California Central Coast growing region to identify where the recurring strain of pathogenic E. coli is persisting and the likely routes of leafy green contamination with STECs.  This includes continued implementation of actions identified in the recently updated Leafy Greens Action Plan, including a multi-year longitudinal  study to assess the environmental factors impacting the presence of foodborne pathogens in this region. Consistent with the action plan, if the FDA detects a pathogen such as E. coli O157:H7, the agency will conduct a follow-up investigation to identify potential sources and routes of contamination. Such investigations are designed to inform what additional preventive measures may be needed to help prevent outbreaks of foodborne illness.

  • Two New Races of Downy Mildew in Spinach

    Two new races of the downy mildew pathogen (Peronospora effusa) on spinach have been denominated by the International Working Group on Peronospora in spinach (IWGP) on the basis of a worldwide evaluation of isolates from growers fields and trap nurseries. Isolate SP1924 found in Europe, is denominated as race Pe: 18. Isolate UA202001E, found in the USA, is denominated as race Pe: 19. Both races pose a significant threat to the spinach industry in all parts of the world, and resistance to these new races is important.

    Members of the IWGP are using a fixed set of spinach differentials (with different resistances)  to define races of downy mildew on spinach by their pattern of virulence on the set. The virulence patterns of all races are published as reference data by the International Seed Federation (ISF); https://www.worldseed.org/our-work/plant-health/differential-hosts/

    Race Pe: 18 is able to infect the differentials NIL2, 3, 4, 5, Pigeon, Caladonia, and Meerkat. Pe: 18 has been found in the US in 2015 to 2018, not in 2019 and 2020. And in Europe it has been found more often in the last 3 years. Race Pe: 19 is able to infect the differentials NIL1, 2, 4, 5, 6, Pigeon, Meerkat and Hydrus. Pe: 19 has been reported only from the USA until now.

    The IWGP is continuously monitoring the appearance of strains of the pathogen that deviate in virulence from the known races. In this way the IWGP aims to promote a consistent and clear communication between public and private entities, such as the seed industry, growers, scientists, and other interested parties, about all resistance-breaking races that are persistent enough to survive over several years, occur in a wide area, and cause a significant economic impact.

    The IWGP is operating internationally and is administered by Plantum located in The Netherlands. The IWGP consists of representatives from spinach seed companies (BASF, Bayer, Bejo, DeSeed, Enza, Pop Vriend, Rijk Zwaan, Sakata, Syngenta, Takii, and Vilmorin) and Naktuinbouw, and is supported by public research at the University of Arkansas. Spinach researchers over the world are invited to join the IWGP initiative and use the common host differential set to identify new isolates. All denominated isolates and seeds of the differential set are available at Naktuinbouw (The Netherlands)

    For more information on this subject, please contact Jim Correll (jcorrell@uark.edu), Diederik Smilde (d.smilde@naktuinbouw.nl), or the IWGP chairperson Anne Königs (a.konigs@rijkzwaan.nl)

    Table with disease resistance reactions of spinach downy mildew races on IWGP differentials. Differentials and type isolates are available at Naktuinbouw in The Netherlands.

  • Viral Lettuce Disease Threatens Western Growers

    A recent report of viral disease on lettuce from our neighbor (Yuma, Arizona) caught our attention since this is highly relevant to our production system (please find information on the first link below). The name of the virus is “Impatient Necrotic Sport Virus” (INSV), which is a tospovirus, similar to the virus that attacks tomato to cause tomato spotted wilt virus symptoms. This virus (INSV) was first reported affecting lettuce crops in Salinas Valley of California in 2006. Subsequently, it was reported to cause crop loss in 2012 and 2015 in the same area. This virus is transmitted by western flower thrips (Frankliniella occidentalis), which is very common and abundant in the low desert region. Early symptoms of infection by INSV are brown to dark spots and dead (necrotic) areas on leaves, which is often mistaken as chemical burn as shown in the picture below on the left-hand side (Photo Credit: Steven T. Koike, UCANR). As the disease progress, multiple leaves could be affected and result in distorted, twisted and dwarf plants (picture on the right). Most of the lettuce types are susceptible to this virus. Several weed species also believed to be the hosts of this virus. Thrips, that also feed on the alternate host weeds can facilitate INSV transmission to lettuce and other crops.

    The good news is that this virus has not been reported from Imperial Valley to our best knowledge. However, we must keep an eye on anything unusual, especially the symptoms shown in the pictures below.

    If you observe similar symptoms on your lettuce or related crops, please bring to our attention, contact us at (442) 265-7700 or bring the sample to our office, 1050 E Holton Road, Holtville, CA 92250.

    For more information:

    https://acis.cals.arizona.edu/agricultural-ipm/vegetables/vipm-archive/vipm-plant-view/impatiens-necrotic-spot-virus

    https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=7309

    https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=17351

    -By Apurba Barman & Oli Bachie, UC Cooperative Extension

  • Late-season Thrips Management in Lettuce

    Effective control of western flower thrips (WFT) to prevent cosmetic scarring and contamination is important in spring lettuce crops, and now that INSV has been found infecting plants in Yuma lettuce, management becomes even more important.  For most of the growing season, WFT numbers have been below average based on sticky trap counts, field reports and population densities here at YAC. However, in the past few weeks WFT populations have increased in most growing areas. This is not surprising as we typically observe “bioconcentration” of WFT during March and April on late lettuce as surrounding produce acreage declines. Each time a lettuce field is harvested, and disked, adult thrips disperse from these areas into the next available lettuce field.  As the number of lettuce acres becomes reduced near the end of the season, this creates a bottleneck effect that concentrates high numbers of thrips adults on the remaining fields under production. This can often make chemical control of WFT very difficult, particularly in March, as adults can continually re-infest fields following spray applications.   So, what management approaches can you take to manage thrips and hopefully reduce the potential incidence of INSV.  The first line of defense should be sanitation. Growers should disc under produce crops immediately following harvest. The longer a harvested crop remains above ground, the more insects that can build up and move to adjacent lettuce fields, especially with the dry, windy, and warm weather we typically have in March.   If only light INSV incidence is present in pre-harvest fields, PCAs should consider rogueing and removing suspect plants from the field.  Ultimately, this may curb secondary infection within the field. 

    Controlling WFT with insecticides is the best approach to minimizing cosmetic feeding damage and may reduce spread of INSV within fields. For adults, which can easily be found on the leaf surface, your best choices of insecticide are methomyl (Lannate) or acephate at a high label rate.  They are the most efficacious products against adult WFT. Radiant is not as consistently efficacious against adults, but a 7 oz or higher rate will provide the best knockdown and residual control of WFT larvae.  Remember, the key to preventing cosmetic damage by WFT is to maintain larval populations at low levels.  The cryptic or thigmotactic behavior of thrips often makes them difficult to find on lettuce plants. Research has shown that if you can see a few adults and larvae on the plant, it means that there are likely 10-fold more thrips actually on the plant (hiding near the base of the plant between midribs).  This behavior also means that spray coverage is important, particularly with contact insecticides like Lannate. There are other insecticides such as Torac, Minecto Pro, Exirel, Movento and Assail that can provide suppression (50% control or less) against WFT larvae, but don’t expect much activity against adults. For more information on the identification, biology, ecology, and management of thrips on desert produce please visit Western Flower Thrips Management on Desert Produce. — By John Palumbo, University of Arizona Extension

  • CA Utilized Vegetable Production Value Shows Slight Decline

    California leads the nation in vegetable production, accounting for 39% of the U.S. vegetable acreage. The value of California’s 2020 utilized vegetable production dropped 0.9% to $7.68 billion compared to 2019’s value of $7.74 billion according to the USDA National Agricultural Statistics Service, Pacific Regional Field Office.

    Despite the decrease in state’s overall total value of utilized production, crops showing an increase included broccoli, cantaloupe, lettuce of all types, sweet potatoes, and tomatoes. California fresh market and processing vegetable growers planted 939,700 acres of principal vegetable crops in 2020, down 3% from 2019. Utilized production totaled 433.8 million hundred weight up slightly from 2019’s 431.7 million hundred weight.

    USDA NASS recently posted the Vegetables 2020 Summary for vegetables grown during the 2020 crop year in California and across the U.S. The report includes survey data collected for acreage, production, marketing year price and value collected on an annual basis for 26 vegetable and melon crops in the U.S. Questionnaire content, survey timetables, and survey administration are state specific. Data are gathered by telephone interviews, mail-out/mail-back, faxed questionnaires, and personal interviews.

    Family favorites grown in California include artichokes, broccoli, carrots, garlic, tomatoes, and more. For a copy of the full report, visit Vegetables 2020 Summary. Just interested in California? Here are comments on 2020 crops where The Golden State is the largest producer. The data reflects U.S. numbers:

    Artichokes: Total production in 2020 totaled 812,000 cwt, down 15% from 2019. Planted area was estimated at 5,900 acres, down 11% from the previous year. Area harvested, at 5,800 acres, was down 12% from 2019. The value of the crop totaled $62.6 million, 16% below the previous season. Utilized production totaled 792,500 cwt, all of which was for the fresh market. In California, artichokes enjoyed a routine spring with strong supplies and steady demand. The March increase could be attributed to consumers pushing the demand for healthy vegetables. The pandemic temporarily impacted labor availability and elevated production costs, but generally favorable weather resulted in good quality and production.

    Broccoli: Total production in 2020 totaled 15.8 million cwt, down 5% from 2019. Planted area was estimated at 100,900 acres, down 4% from the previous year. Area harvested, at 100,300 acres, was also down 4% from 2019. The value of the crop totaled $875 million, 3% more than the previous year. Utilized production totaled 15.8 million cwt, of which 15.3 million cwt was for the fresh market and 25,060 tons for processing. In California, the pandemic caused a variety of changes in the marketplace. Most notably was the decreased demand from the food service industry for broccoli. Growers plowed under broccoli due to limited demand by the hospitality industry.

    Cabbage: Total production in 2020 totaled 23.7 million cwt, up 6% from 2019. Planted area was estimated at 60,600 acres, down 3% from the previous year. Area harvested, at 58,600 acres, was down 3% from 2019. The value of the crop totaled $428 million, 16% less than the previous season. Utilized production totaled 23.6 million cwt, of which 19.1 million cwt was for the fresh market and 224,241 tons for processing. In California, weather during the planting in the fall of 2019 and through head development in 2020 was favorable. No reports of pathogen impact were reported for the crop.

    Cantaloupes: Total production in 2020 totaled 11.3 million cwt, a slight increase from 2019. Planted areas was estimated at 41,000 acres, down 15% from the previous year. Area harvested, at 40,600 acres, down 15% from 2019. The value of the crop total was $296 million, an increase of 24% from previous year. The utilized production was 11.3 million cwt, all of which was for the fresh market. In California, lack of rainfall during the spring months and high temperatures during the summer months provided ideal growing conditions for cantaloupes compared to last year.

    Carrots: Total production in 2020 totaled 31.1 million cwt, down 6% from 2019. Planted area was estimated at 69,900 acres, down 4% from the previous year. Area harvested, at 69,700 acres, was down 3% from 2019. The value of the crop totaled $716 million, 7% less than the previous year. Utilized production totaled 31.1 million cwt, of which 22.3 million cwt was for the fresh market and 441,787 tons for processing. In California, the largest producing State, the carrot market was steady through the spring of the year. In the heavily farmed central portion of the Cuyama Valley, where a lot of California’s carrots are grown, the water table continued to drop in 2020.

    Cauliflower: Total production in 2020 totaled 9.0 million cwt, down 11% from 2019. Planted area was estimated at 42,500 acres, down 6% from the previous year. Area harvested, at 42,200 acres, was down 7% from 2019. The value of the crop totaled $346 million, 25% less than the previous season. Utilized production totaled 8.9 million cwt, of which 8.8 million cwt was for the fresh market and 2,724 tons for processing. In California, growers have seen dramatic movement of cauliflower during the pandemic. This year has seen generally shrinking volume from the beginning of February, and lower volume than the previous two year since the beginning of March. Pricing is below the prior two years and continues decreasing, although price has not stabilized, the rate of decrease has slowed.

    Celery: Total production in 2020 totaled 16.1 million cwt, up 2% from 2019. Planted area was estimated at 29,200 acres, up 4% from the previous year. Area harvested, at 28,800 acres, increased 2% from the previous year. The value of the crop totaled $359 million, down 24% from previous year. Utilized production for 2020 totaled 16.1 million cwt, up 2% from 2019.
    In California, growers reported higher production but price dropped considerably.

    Garlic: Total production in 2020 totaled 3.46 million cwt, down 10% from 2019. Planted area was estimated at 24,700 acres, unchanged from the previous year. Area harvested, at 24,700 acres, was unchanged from 2019. The value of the crop totaled $264 million, 12% less than the previous season. Utilized production totaled 3.46 million cwt, of which 1.21 million cwt was for the fresh market and 112,385 tons for processing. In California, producers were tempered by soil borne pathogens that reduced yield in some areas, though overall the growing season experienced favorable weather.

    Honeydew: Total production in 2020 totaled 2.36 million cwt, down 9% from 2019. Planted area was estimated at 7,600 acres, down 25% from the previous year. Area harvested, at 7,600 acres, was also down 25% from 2019. The value of the crop totaled $49.2 million, down 11% from the previous season. Utilized production totaled 2.36 million cwt, all of which was for the fresh market. In California, lack of rainfall during the spring months and high temperatures during the summer months provided ample growing conditions for honeydew compared to last year.

    Head lettuce: Total production in 2020 totaled 40.7 million cwt, down 3% from 2019. Planted area was estimated at 114,000 acres, down 2% from the previous year. Area harvested, at 112,900 acres, was down 3% from 2019. The value of the crop totaled $1.25 billion, 12% less than the previous season. Utilized production totaled 40.7 million cwt, all of which was for the fresh market. In California, the largest producing State, higher than normal temperatures in the central valley resulted in substantial losses. In the coastal region, warm weather and wildfires affected supplies later in the year. Significant occurrences of crop disease also contributed to a tight market, prompting concerns of shortages in other parts of the country. Some producers in Arizona and California have allowed some head lettuce to die in the field or to be disced under, due to decreased sales to food service companies.

    Leaf lettuce: Total production in 2020 totaled 15.6 million cwt, up 25% from 2019. Planted area was estimated at 62,900 acres, up 9% from the previous year. Area harvested, at 61,700 acres, was also up 8% from 2019. The value of the crop totaled $800 million, 23% more than the previous season. Utilized production totaled 15.6 million cwt, all of which was for the fresh market. In California, some growers did not harvest their fields during the spring in response to market conditions, but demand improved as the year progressed. There was a small amount of heat damage to the crop, but yields were up significantly from the previous year. Quality was reported to be fair and demand was strong enough to keep prices up. However, some producers in Arizona and California have allowed some leaf lettuce to die in the field or to be disced under, due to decreased sales to food service companies.

    Romaine lettuce: Total production in 2020 totaled 30.3 million cwt, up 11% from the 2019 total. Planted area was estimated at 93,100 acres, up 4% from the previous year. Area harvested, at 91,500 acres, was up 4% from 2019. The value of the crop totaled $948 million, 8% more than the previous season. Utilized production totaled 30.3 million cwt, all of which was for the fresh market. In California, there were quality issues in the late summer crop as instances of Sclerotinia and Impatiens Necrotic Spot Virus were found in the Central Coast region. In November, there was a voluntary recall of Romaine lettuce due to a potential outbreak of E.coli. Overall, yields were up from a year ago. Some producers in Arizona and California have allowed Romaine lettuce to die in the field or to be disced under, due to decreased sales to food service companies.

    Onions: Total production in 2020 totaled 75.2 million cwt, up 8% from 2019. Planted area was estimated at 134,700 acres, up 2% from the previous year. Area harvested, at 132,800 acres, was up 3% from 2019. The value of the crop totaled $878 million, 12% less than the previous year. Utilized production totaled 73.5 million cwt, of which 49.5 million cwt was for the fresh market and 1.20 million tons were for processing. In California, the largest producing State, growers reported the summer being too hot too early. Later in the summer there wasn’t enough sun when wildfires blanketed the state in smoke for months.

    Bell peppers: Total production in 2020 totaled 11.7 million cwt, up 1% from 2019. Planted area was estimated at 38,100 acres, up 1% from the previous year. Area harvested, at 37,100 acres, was up 1% from 2019. The value of the crop totaled $479 million, 11% less than the previous year. Utilized production totaled 11.7 million cwt, of which 8.22 million cwt was for the fresh market and 171,808 tons for processing. In California, the summer turned very hot early, which quickly turned bad as fires ravaged through large portions of the state burning cropland and producing a thick layer of smoke blocking the sun for months. Some producers had to divert peppers intended for fresh market to processors as state lockdowns caused stoppages in the supply chain.

    Spinach: Total production in 2020 totaled 7.23 million cwt, down 24% from 2019. Planted area was estimated at 56,800 acres, down 14% from the previous year. Area harvested, at 56,200 acres, was also down 14% from 2019. The value of the crop totaled $439 million, 28% less than the previous season. Utilized production totaled 7.23 million cwt, of which 6.45 million cwt was for the fresh market and 39,204 tons for processing. In California, the largest producing State, the coastal regions experienced damaging cold temperatures in early spring, bringing yields down below last year. Acreage decreased after some growers responded to a drop in demand by plowing under their fields.

    Sweet potatoes: Total production in 2020 totaled 30.7 million cwt, down 4% from 2019. Planted area was estimated at 158,000 acres, up 7% from the previous year. Area harvested, at 156,800 acres, was up 7% from 2019. The value of the crop totaled $726 million, 10% more than the previous season. Utilized production totaled 30.6 million cwt, of which 23.9 million cwt was for the fresh market and 331,638 tons for processing.

    Tomatoes: Total production in 2020 totaled 241 million cwt, up 1% from 2019. Planted area was estimated at 280,000 acres, down 1% from the previous year. Area harvested, estimated at 272,900 acres, was down slightly from 2019. The value of the crop totaled $1.66 billion, 4% more than the previous season. Utilized production totaled 239 million cwt, of which 12.6 million cwt was for the fresh market and 11.3 million tons for processing. In California, there were no major issues during planting, but higher than average temperatures in late spring affected early crop yields. Inconsistent weather patterns throughout the growing season prompted short interruptions in the flow of ripe tomatoes. Wildfires that raged through the state in late summer and early fall slowed the processing tomato harvest. Crop quality varied by region and disease pressure was low. Due to a lack of rain, water availability continued to be a concern.

    For more agricultural statistics, visit www.nass.usda.gov.