California Ag Network

Category: Vegetable Industry

  • UCCE Carrot Production and Pest Management Webinar, Oct. 9

    As part of the UC Ag Experts Talk webinar series, Dr. Jaspreet K. Sidhu, Vegetable Crops Farm Advisor with the University of California Cooperative Extension, Kern County, will lead the next webinar on October 9, 2024 (3 – 4 p.m.).  She will discuss carrot production in California’s Central Valley, the biggest producer in the U.S. Dr. Sidhu will include major pest challenges and pest management with research findings for management especially for root knot nematodes, Alternaria leaf blight and cavity spot. One DPR CE unit (other) and one CCA CE unit (IPM) are pending. In order to qualify for credit, a final exam will be given and must be passed with a 70% or higher. Register to attend this free webinar HERE.

  • Extensive Heat Waves Influence Drop in 2024 California Processing Tomato Forecast

    Contracted production for California processing tomatoes is forecast at 11.3 million tons, averaging 50.0 tons per acre. The current production forecast is 12 percent below last year’s contracted production of 12.8 million tons, and 2 percent below the May forecast. The projected harvested acreage of tomatoes grown under contract is 226,000 acres, down 11 percent from 2023.

    Mild spring temperatures and adequate water provided tomato growers with favorable planting conditions and a good start to the developing crop. However, extremely high temperatures throughout the summer and into harvest has negatively affected yields. There were concerns regarding curly top virus detected in the San Joaquin Valley, but no significant damage was reported.

    The processing tomato harvest began the first week of July in the southern Central Valley and progressed to the northern counties by the middle of August. Harvest is expected to finish in October, significantly earlier than last year. Quality is reported to be fairly good for the early crop, but the impact of the heat waves on late season plantings is uncertain.

    The Processing Tomato Advisory Board published shipments through August 24, 2024, showing a 29% increase compared to this time last year. However, shipments were significantly behind schedule in 2023 because the crop was delayed. Current shipments compared to the halfway point of last year indicate a decrease of 12%.

    This processing tomato estimate is funded by the California League of Food Producers.

  • Brendan O’Donnell Selected as President/CEO of DFA and Safe Food Alliance

    DFA of California and Safe Food Alliance are pleased to announce the appointment of Brendan O’Donnell as their new President and CEO, effective August 1st, 2024. Brendan brings over two decades of extensive leadership experience in the food and agriculture industry, marked by his commitment to innovation, food safety, and sustainable practices.

    Prior to joining DFA and Safe Food Alliance, Brendan served as Global Segment Director, Nuts & Citrus at TOMRA Food, where he led global teams and spearheaded customer-focused product development initiatives. His tenure at TOMRA showcased his strategic acumen and ability to drive growth through effective leadership and market insights.

    “Looking ahead, we are very pleased with the appointment of Brendan O’Donnell to succeed Vaughn as President & CEO. Brendan has demonstrated extraordinary communication and leadership skills in his roles at TOMRA and Monte Vista Farming Company. These skills, along with his technical background, make him an excellent fit to lead the DFA/Safe Food Alliance organization,” said Brian Dunning, President & CEO
    of ShoEi Foods USA and current Chair of the DFA Board. “His vision aligns perfectly with our commitment to supporting the dried fruit, tree nut, and specialty crop industries, and I am confident in his ability to enhance our member services and strengthen our industry partnerships.”

    Throughout his career, Brendan has held pivotal roles at Monte Vista Farming Company and Sun Valley Rice, where he contributed significantly to business growth and market expansion. He holds an Executive Certificate in Negotiation from the University of Notre Dame’s Mendoza College of Business and a B.S. in Agricultural Systems and Environment from the University of California, Davis.

    “I am honored to join DFA and Safe Food Alliance at such an exciting time in our industry,” said Brendan O’Donnell. “I look forward to leveraging my experience to drive innovation, strengthen food safety standards, and support our members and partners as we navigate new opportunities and challenges ahead.”

    In addition to his professional achievements, Brendan is dedicated to his family and enjoys exploring the outdoors with his wife, Erin, and their two teenage children.

    About DFA of California

    Founded in 1908, DFA of California is a non-profit trade association dedicated to supporting the dried fruit, tree nut, and specialty crop industries. DFA supports processors through rigorous inspection services, member benefits, food safety training, and provides support on numerous export related matters. For more information, visit DFA of California.

    About Safe Food Alliance

    Safe Food Alliance provides a comprehensive range of food safety services designed specifically for food processors and manufacturers throughout California. As a full service food safety company, Safe Food Alliance provides third-party laboratory testing, complemented by extensive food safety training, consulting services, and third-party certification audits offered through a separate company, Safe Food Certifications.

  • Big DPR Licensing Changes for Pest Control Advisers and Invitation to Gather for 50th Anniversary CAPCA Conference

    To help California Pest Control Advisers and qualified/aerial pesticide applicators prepare for several changes to their license renewals with DPR, Ruthann Anderson, President/CEO of the California Association of Pest Control Advisers (CAPCA), met with Matthew Malcolm on California Ag Network on August 5th to explain the changes. Among them is a significant renewal fee increase. While increasing costs are never welcome news, Anderson calls upon DPR for transparency and accountability in the use of the increased funds to better serve licensees. She also points out that 2024 is a milestone year for CAPCA, as they will be holding their 50th annual Conference this fall. Watch this brief interview to learn more specifics on California DPR license renewal changes, and some exciting things to expect in attending CAPCA’s 50th Conference this October.

    Please thank this video’s sponsor Southern California Gas Company for their industry support.

  • Economic Analysis Reveals Significant Impacts of Pesticide Policies on California Lettuce Production

    Today, Californians for Smart Pesticide Policy (CSPP) released a comprehensive economic analysis highlighting possible implications of elements of California’s proposed Sustainable Pest Management (SPM) framework that would result in impacts on the state’s lettuce production industry. The study, conducted by economists Jarrett Hart, Duncan MacEwan, Jay Noel, and Amrith Gunasekara, underscores the critical need for effective and timely pest management solutions to safeguard the state’s agricultural productivity.

    The economic impact of pesticide restrictions is profound, with projections indicating a 7.3 percent decrease in California’s lettuce production due to restrictions on key pesticides such as neonicotinoids and pyrethroids. This would result in an annual loss of $160.3 million to producers and an additional cost of $694.28 million to consumers. Additionally, the shift in production from California to other regions like Arizona and Mexico would increase production costs and consumer prices, further straining the state’s agricultural economy.

    The consequences of delays in pesticide registration are equally concerning. The study reveals that California’s stringent and lengthy registration process leads to a reduction in lettuce production, with producers losing $42.8 million and costing consumers $139.3 million annually. The state’s process, which can extend 1-3 years following federal approvals, hinders innovation and delays the availability of new, effective pest management products to California growers.

    Market shifts and regulatory leakage are anticipated as a result of these proposed policies. The economic analysis predicts a modest short-run decrease in lettuce prices and a production shift from California to Arizona and Mexico. In the long run, more stringent pesticide policies would drive a significant portion of lettuce production out of California, resulting in increased prices throughout the supply chain, including for consumers.

    The implications of the proposed SPM framework are significant. While the SPM framework aims to phase out harmful pesticides, without viable alternatives, this policy could undermine California’s agricultural sector.

    CSPP is dedicated to balanced pesticide policies that protect California’s agriculture and economy while ensuring environmental sustainability and public health. We strive to promote informed decision-making through comprehensive research and economic analysis. For more information on this study and CSPP’s initiatives, please visit our website at https://ca4pestpolicy.org/.

  • Center for Land-Based Learning Fosters Rising Generation of CA Farmers & Ag Leaders

    Have you heard of the Center for Land-Based Learning? For over 30 years, this nonprofit organization has served California’s agricultural industries by inspiring and educating youth with an interest in food and ag — connecting them with resources and opportunities to pursue a career in farming.  Nicole Curiel, Apprenticeship Program Assistant Manager from the Center met with Matthew Malcolm on California Ag Network to share more about the program and how farmers can get involved. Watch this brief interview to learn more.

    Please thank this video’s sponsor Southern California Gas Company for their industry support.

  • International Trade Commission Determine Antidumping And Countervailing Duties Remain Essential To Prevent Injury To The US Olive Industry

    The California table olive industry commends today’s 4-0 vote by the International Trade Commission (ITC) affirming that the antidumping (AD) and countervailing duty (CVD) orders first imposed on Spanish ripe olives in 2018 must remain in place. The ITC’s determination was based on its findings that a revocation of the olive AD/CVD orders is reasonably likely to lead to a continuation or recurrence of material injury to the California ripe olive industry.

    The ITC’s unanimous vote in favor of the California industry follows companion determinations issued by the Department of Commerce (Commerce) in late 2023 finding that a revocation of the AD and CVD olive orders would lead to a recurrence of dumping margins as high as 25.5% and CVD margins as high as 13.9%. These ITC and Commerce decisions were made in the context of the five-year “Sunset Review” procedures required under US trade law and, because of the affirmative rulings, now extend the olive AD/CVD orders for another five years. The Musco Family Olive Company successfully litigated these proceedings on behalf of the California-based ripe olive industry.

    “The US Government and court systems have repeatedly confirmed over the last five years that the Spanish industry is still benefiting from unfair European Union (EU) subsidies and is still dumping its ripe olives in the US market,” said Michael Silveira, Chairman of the Olive Growers Council of California. “If it weren’t for the US Government’s ongoing AD/CVD orders on Spanish olives, American table olive production, and hundreds of family farmers and allied jobs would be in serious jeopardy,” he said.

    For years, the EU has tried to shield its unfair, disproportionate farm subsidy payments from external legal challenges. After the US issued its olive AD/CVD orders in 2018, the EU has worked to overturn the olive orders by challenging them in the WTO and politically pressuring the US Government to terminate the olive tariffs.

    The EU hopes to undermine a fundamental US trade enforcement law, Sec. 771B of the Tariff Act of 1930, used by Commerce to calculate the olive orders, and by undermining that law, terminate the olive tariffs. As the US courts have made clear, however, Sec. 771B is an important US trade law intended by Congress to ensure effective trade relief for American agriculture.

    Silveira said, “The EU and Spanish interests want the US Government to overturn US trade law to allow the Spanish industry to go back to selling its dumped and subsidized olive prices with no consequences.” He added, “that would only reinforce the EU’s protectionist agricultural policies and, by eroding trade enforcement, would undermine American-grown production and US food security.”

    The US Government’s AD/CVD orders on Spanish olives have given California olive farmers the time they need to reinvest in modern farming techniques, including through Musco’s “One Million Trees” initiative to help transition the industry to mechanized, drought-friendly acreage. Dennis Burreson, a California olive grower and Vice President of Field Operations and Industry Affairs for Musco Family Olive Company, highlighted the importance of the ITC and Commerce rulings Musco achieved for the California industry, adding “The olive orders, together with our industry-led investments, are a great example of how to break the cycle of unfair foreign trade practices and rebuild high quality, environmentally-friendly American production and American jobs.”

    The Olive Growers Council was organized as a bargaining cooperative with the mission to try to improve prices paid to farmers for their table olives delivered to the commercial processors.

  • California Table Olive Forecast & Protection from Foreign Imports

    California is the nation’s primary producer of many specialty crops, and table olives is among those choice commodities. Todd Sanders from the Olive Growers Council of California visited with Matthew Malcolm on California Ag Network to provide an update on the developing 2024 olive crop as well as emphasizing the need for the U.S. to continue protecting the industry from foreign imports with an anti-dumping tariff. Watch this brief interview and read more in California Fruit & Vegetable Magazine.

    Please thank this video’s sponsor Southern California Gas Company for their industry support.

  • The Antimicrobial Benefits of Mushrooms

    Scientists with the Agricultural Research Service (ARS) are examining the antimicrobial properties of mushroom extracts. Their goal: make food crops safer throughout the production process, from farm to fork – and beyond – including the ability to mitigate chronic human health conditions.

    Petri dish containing the fungus Aspergillus flavus. This common fungus is a concern because it produces carcinogenic aflatoxins that may contaminate certain foods and cause aspergillosis, an invasive fungal disease. (Photo by Peggy Greb)

    Mushrooms are a classic example of a two-sided coin. On one side, mushrooms are a valuable source of food and income around the world and are known to have pharmaceutical qualities. On the other, nearly 7,500 cases of mushroom poisoning (over 700 serious cases and 52 deaths) occur each year in the United States alone.

    Now, researchers are pitting the good properties of mushrooms against the bad.

    “Edible mushrooms [are] a source of bioactive compounds, and certain medicinal mushrooms have emerged as beneficial ingredients of dietary supplements,” said Jong H. Kim, molecular biologist at the ARS Foodborne Toxin Detection and Prevention Research unit in Albany, CA.

    Kim is the primary author of a paper on how medicinal mushrooms contribute to food safety.

    The role of mushrooms in food safety begins in the farmer’s field. According to Kim, pinecone cap mushrooms, which are a type of fungi, provide the main ingredient in the fight against a worldwide carcinogenic fungus – Aspergillus flavus.

    A. flavus produces aflatoxins, some of the most dangerous mycotoxins that widely contaminate many major crops, such as corn, tree nuts, and peanuts. People who eat a large amount of food contaminated with aflatoxins – or products derived from animals that have eaten it – are at higher risk for some adverse health conditions, including liver cancer and stunting in children.

    “Many antimicrobial agents have been developed from mushroom ingredients for crop protection, [including] the natural fungicide strobilurin,” Kim said. “Strobilurins [are] one of the most important classes of agricultural fungicide.”

    When farmers use strobilurins, the compound inhibits A. flavus growth by interrupting its ability to breathe. Stopping A. flavus in the field reduces the amount of aflatoxins that manufacturers must contend with during food processing and packaging.

    “[We] found that a component of the mushroom Taiwanofungus camphoratus (Tc) could be developed as a food ingredient having antimicrobial potential, thus inhibiting the growth of fungi and bacteria in foods,” Kim said. “Tc lowers the contamination rate of toxin-producing or heat-tolerant fungi that escape the food sanitation process. The application of Tc in the food industry will promote food safety, which is vital for the health of consumers.” – By Scott Elliott, USDA-ARS Office of Communications

  • Managing Aphids in California Prune Orchards

    By Sudan Gyawaly, UCCE Northern Sacramento Valley IPM Advisor — ‘Leaf curl plum aphid’ and ‘mealy plum aphid’ are the key pests of prune orchards in the northern Sacramento Valley. Both aphid species survive the winter in the orchard at egg stage near the base of buds. Once hatched, around bloom time, they vigorously feed on the young foliage and build up their population quickly. From May (leaf curl plum aphid) and June/July (mealy plum aphid), most aphids leave the prune trees and feed on alternate weed hosts outside the orchard.

    Mealy plum aphid

    Both aphid species infest growing leaves and stems in spring and summer, which can cause curling and stunting of the leaves. Serious aphid infestation can reduce tree growth, vigor, and potentially reduce fruit sugar content. Accumulation of honeydew, which these aphids excrete while feeding, results in the development of sooty mold which can potentially lead to fruit cracking.

    Damage caused by plum leaf curl aphid, Jack Kelly Clark, UC IPM

    Determining the need to spray for aphids and optimum spray timing.

    The decision to spray for aphids depends on the past and present orchard aphid pressure, which also helps determine the optimum spray timing. Also, the need to spray for other prune pests (such as scale or peach twig borer) can influence the selection of materials and application timings for aphids. Several pesticide options are available for aphid control for different application timings (see table, below). An effective aphid management program should always weigh the relative cost, efficacy, and impacts on natural enemies and surface water quality.

    If aphids are a consistent problem in an orchard, a late fall/early dormancy (Nov-early Dec) spray with a low label rate of a pyrethroid insecticide provides good control of aphids. Low label rates of these insecticides applied at this time are effective, yet the risk of surface water runoff is reduced. Oil spray during this period can seriously impact parasites (natural enemies) and is not recommended, especially if leaves are still on trees.

    Dormant sprays (late Dec-Jan) of pyrethroid or pyrethroid plus oil treatments are effective against aphids and other pests, such as scale and PTB. However, this application timing poses higher risks of surface water contamination.

    If a fall/dormant spray is not applied, dormant spur sampling can help decide the need for aphid sprays at bloom. Dormant spur sampling for aphids involves sampling for aphid eggs, and the treatment threshold for aphids is just 1 egg out of 100 spurs. However, aphid eggs can be hard to find on dormant spurs, and not finding eggs on spurs doesn’t mean none are present. Therefore, a spring/summer monitoring is necessary to complement the dormant spur sampling if no eggs were found on dormant spurs. Bloom time sprays of narrow-range oil are effective against aphids.

    If aphids are only an occasional problem in the orchard and sprays were not applied at fall/dormant or bloom time, the need to spray for aphids is based on spring/summer monitoring. Spring/summer aphid monitoring involves weekly monitoring (from petal fall until a treatment is applied or July 15) of 40 trees/block for aphid infestation and determining if those trees have significant (aphid covering >10% of tree leaf surface) aphid infestations. Treatment is warranted if a threshold (12 out of 40 trees monitored in a block) have significant aphid infestation. Click this link for details on spring/summer monitoring.

    The table below (adopted from Franz Niederholzer) provides a good summary of various prune aphid control materials, their application timings, efficacy against key prune pest and risks to water quality.

    Label is the law. Always read the label of the product being used.

    Disclaimer: Products listed in this table do not constitute a recommendation, and many of the active ingredients presented in this article can be purchased under multiple trade names.