California Ag Network

Tag: Pest Management

  • September Orchard Tasks – Almonds

    Although almond harvest may be wrapping up, the work needed to prepare orchards for next season has already begun. Post-harvest priorities include monitoring for disease, irrigating trees, pruning and managing pests.

    Brent Holtz with the University of California Cooperative Extension advises growers to watch for red leaf blotch and rust. Bright orange spots on leaves may indicate red leaf blotch, while orange and black spores can be signs of rust. This year’s warm March appears to have increased the severity of rust, making it important to avoid irrigation practices that keep orchards humid for extended periods.

    However, growers should not stop irrigating altogether. Water should be applied as soon as the harvested nuts are removed from the orchard floor. Dr. David Goldhamer, emeritus irrigation specialist with UC Davis, says almond trees can use up to 11 acre-inches of water after harvest if their leaves remain active. Proper post-harvest irrigation can also help move salt below the trees’ root zone.

    Growers can also begin pruning mature orchards immediately after harvest instead of waiting until dormancy. Pruning early gives wounds time to heal before rainfall, reducing the risk of fungal diseases. While studies indicate pruning does not significantly improve almond yields, it remains necessary to provide enough space for orchard equipment to pass between trees.

    Fall is also a good time to manage gophers, ground squirrels and mice. Baiting or fumigation can help control ground squirrels before they enter hibernation. Growers should also look for pieces of almond shells left in tree crotches, which may indicate mouse activity.

    For more information about post-harvest almond orchard management, read the full article in the September issue of Pacific Nut Producer Magazine.

  • Dragon Fruit Production and Farm Tour Coming to Southern California

    UC Ag and Natural Resources is hosting a Dragon Fruit Production Workshop and Farm Tour for growers in the San Diego area. The two-day event will discuss topics ranging from variety selection and field establishment to irrigation, pest management and marketing. Growers will have an opportunity to see the latest research and witness hands-on demonstrations, gain insights from local grower experiences and find out how to gain access to industry resources for this increasingly popular fruit.

    The workshop will be held Sept. 18 from 8 a.m. to 5 p.m. at the San Diego Farm Bureau in Escondido, and the farm tour will be held Sept. 19 from 8 a.m. to 4 p.m. Farm stops and itinerary are yet to be decided. Registration comes with a $60 charge and must be completed by Sept. 11.

    WORKSHOP TOPICS

    Dragon Fruit Varieties, Establishment and Economic Considerations for Commercial Production

    The Dragon Fruit Value Chain and Market Dynamics, from Producer to Consumer

    Dragon Fruit Diseases and Cactus Virus X (CVX) Incidence and Management Strategies in Florida

    Issues and Challenges with Dragon Fruit Production in Southern California – Facilitated Discussion with Local Growers

    Dragon Fruit Sensory Evaluation and Post-Harvest Management

    Dragon Fruit Value-Added Product Development

    Weed Management Strategies for Dragon Fruit Production

    Irrigation System Design Considerations and Water Management

    Insect Pests and Management Strategies for Dragon Fruit Production

    Agritourism as a Marketing Tool for Dragon Fruit

    Lightning Presentations About UCANR & Other Support Programs

    Food Safety Technical Assistance Program

    California Agricultural Land Equity

    California Under Served Population (CUSP) Program

    Transitioning to Organic Agriculture

    Climate Smart Agriculture Program

    Mission Resource Conservation District (RCD) Programs

    FIELD DAY ACTIVITIES- (Tour stops to be determined)

    Host farm overview and Tours

    Pruning, Pollination and Trellis System demonstration

    Irrigation Systems Design and Components

    Insect and/or Weed Pest Identification Clinic

    Backpack Sprayer Calibration Clinic

    Value-added Product Development demonstration

    Pitahaya and Value-added product tasting

    — Story contributed by UC Ag and Natural Resources

  • New Investment Aims to Give Growers Another Tool for NOW

    California almond growers know the challenge navel orangeworm brings every season. The pest can reduce crop quality, increase production costs and raise concerns around aflatoxin and marketability. Now, new additional funding is helping continue an industry-backed research effort to advance another tool growers may one day be able to use as part of an integrated pest management program.

    The Foundation for Food & Agriculture Research, the Almond Board of California and Flyttr™ partnered on a nearly $5 million grant to advance development of a biological approach targeting navel orangeworm in almonds and pistachios. ABC is helping fund a portion of the project, reflecting the almond industry’s continued investment in research that supports long-term orchard productivity, crop quality and grower profitability.

    The project centers on Flyttr’s Friendly™ navel orangeworm technology. The concept is simple: release Friendly™ male moths into areas with pest pressure. When those males mate with wild females, no surviving offspring are produced. With continued releases over time, the goal is to reduce the pest population and lower damage pressure in orchards.

    For growers, the significance is not that this replaces today’s best practices. Sanitation, monitoring, mating disruption, timely harvest and well-timed treatments remain important parts of navel orangeworm management. Instead, this research is focused on developing a targeted biological tool that could complement existing programs and help reduce reliance on conventional insecticides over time.

    Navel orangeworm remains one of the costliest pests facing California tree nuts, with industry losses estimated at more than $800 million each year. Damage can affect yield, quality and food safety, which is why the pest continues to be a priority for research, industry collaboration and new technology development.

    Funding from FFAR and industry partners will support the continued work needed to move the technology closer to practical use, including large-scale production systems and field studies. That means the effort is still in development, but it represents an important step toward expanding the number of durable tools available to growers managing navel orangeworm pressure.

    ABC’s role in helping fund this work is part of a broader commitment to support practical, science-based solutions for almond growers. By investing alongside partners, the almond industry is helping advance research that could protect crop value, strengthen pest management options and support the long-term competitiveness of California almonds.

  • 42nd Carrot Conference Planned by UCANR

    UC Ag and Natural Resources will hold the 42nd International Carrot Conference, scheduled for June 2-3 at the Bakersfield Marriott Convention Center.

    The Carrot Conference is an opportunity to share and discuss research findings and a way for people to exchange ideas and concerns in all aspects of carrot production. Topics such as breeding, new products, production, and pest management are discussed in formal paper sessions, poster sessions, and a field tour, as well as other social gatherings.

    The conference also provides continuing education opportunities with 4.5 other DPR hours approved for June 2. More details and an agenda can be found here. For additional information please contact: Jaspreet Sidhu, Kern County Cooperative Extension, 661-868-6222, 661-304-8870. — Contributed by UC Ag and Natural Resources

  • DPR Releases Summary of Convening on Post-Harvest Commodity Fumigation

    The California Department of Pesticide Regulation (DPR) recently released the post-harvest commodity fumigation component of an independent study evaluating alternatives to fumigant pesticides. Prepared by the California Council on Science and Technology (CCST), the convening report summarizes key themes and discussion points from a convening assembled by CCST to discuss fumigants that are used to protect stored food products after harvest, potential alternatives, and opportunities to reduce exposure for workers and nearby communities.

    CCST’s convening included academic, industry, public health, environmental justice and regulatory experts who met for a series of discussions on post-harvest commodity fumigation in November 2025. The discussion specifically focused on four fumigant pesticides: methyl bromide, sulfuryl fluoride, phosphine, and propylene oxide. All four fumigants are restricted material pesticides primarily used on produce after harvesting to protect food from fungal disease and insect pests while in storage. The report synthesizes findings from those discussions to summarize and reflect participants’ perspectives on the state of post-harvest commodity fumigation in California.

    The convening report includes discussion summaries related to:

    • How and why post‑harvest fumigants are used today, including factors that drive fumigation for stored commodities.
    • Community exposure and emission concerns, along with current mitigation practices and opportunities to strengthen protections for nearby residents and workers.
    • Available and emerging alternatives to traditional fumigants, such as controlled atmospheres, irradiation, pheromone‑based tools, and multi‑pronged Integrated Pest Management approaches.
    • Barriers that limit the adoption of alternatives, including international and national regulatory requirements, cost and the need for additional research and training.
    • Key research gaps where further scientific study is needed to support a transition to safer, effective pest management tools.

  • New Webinar Series by CAFF and UC Aids Farmers Transitioning to Organic

    Farmers seeking guidance on starting or advancing their transition to organic crop production are invited to attend free webinars led by a wide range of experts, including University of California scientists and fellow growers.

    Held at noon every Wednesday from Jan. 14 to March 18, 2026, the “Transition to Organic Webinar Series” covers the certification process, market dynamics, soil health and soil amendments, pest and weed management, and other key topics of organic production. Participants are encouraged to attend all sessions but can choose any webinars that are most relevant for them.

    Learn more and register; attendees also can choose real-time Hmong or Spanish interpretation for each session.

    The 10 online sessions – each comprising a 75-minute presentation and discussion, followed by optional office hours – are organized and sponsored by the Community Alliance with Family Farmers, UC Cooperative Extension, and the UC Organic Agriculture Institute (an institute of UC Agriculture and Natural Resources).

    “This is the first time UC ANR is partnering with CAFF to offer such a series focused on transition to organic,” said Margaret Lloyd, UCCE organic agriculture and small farms advisor for Yolo, Sacramento and Solano counties. “Ultimately, we hope to provide the resources, community and support to folks who want to make a successful transition.”

    California leads the U.S. in the number of organic farms, land in organic production and organic sales. In 2023, there were more than 3,300 organic producers in the state, according to the latest California Department of Food and Agriculture report.

    Organizers designed the webinars to appeal to producers across California and to directly address issues that a variety of agricultural operations face.

    “This series brings together technical assistance providers and farmers to explore the full range of challenges producers face when transitioning to organic – from certification and market considerations to management practices, biodiversity, recordkeeping and inspections,” said Grace Jackson, the Central Valley regional lead for CAFF’s Farmer Services team.

    Series addresses challenges of certification, market dynamics, pest and weed management

    Another organizer, Katharina Ullmann – training and technical assistance coordinator at the UC Organic Agriculture Institute – said that demand for more information was quite apparent during workshops held this past year throughout the state, from Siskiyou County to San Diego.

    “Standalone workshops are great, but there is a lot of information to cover in a two- or three-hour workshop,” Ullmann said. “We thought it would be helpful to have a longer, regular series, where we would have a whole hour to dig into a specific transition topic.”

    The lineup of presenters – available on the registration page – reflects a diverse mix of perspectives on organic agriculture, encompassing firsthand farmer experiences and the latest scientific research.

    “We have farmer panels; we have people who work with certifiers, and organic inspectors; we have UCCE advisors and specialists who will present as part of this workshop,” Ullmann said. “Over the past three decades, many individual farmers and other partners like the UC Santa Cruz Center for Agroecology, the CCOF [California Certified Organic Farmers] Foundation and the Ecological Farming Association [EcoFarm] have provided training on transitioning to organic production. We are excited to add to that body of work.”

    She noted that the series covers many of the topics mentioned by respondents to the Organic Agriculture Institute’s statewide needs assessment survey. In addition to crop production challenges and market concerns, growers emphasized the need for support on certification processes and related paperwork (such as the Organic System Plan) – topics to be presented on Jan. 21.

    Aside from this new series on topics about transitioning to organic, Lloyd and other UCCE advisors are continuing an annual online Organic Agriculture Seminar Series on specific aspects of organic production. Details for those webinars, scheduled for Tuesdays at noon in 2026, will be posted on Lloyd’s website.

    Registration and information on the “Transition to Organic Webinar Series” can be found at: https://actionnetwork.org/events/transition-to-organic-webinar-series-for-crop-producers/.

    The series is made possible through funding from the California Department of Food and Agriculture State Organic Program, the CDFA Office of Agricultural Resilience and Sustainability, and the United States Department of Agriculture Transition to Organic Partnership Program.

    UC Agriculture and Natural Resources brings UC information and practices to all 58 California counties. Through research and Cooperative Extension in agriculture, natural resources, nutrition, economic and youth development, our mission is to improve the lives of all Californians. Learn more at ucanr.edu.

    To read more UC ANR news, visit our newsroom at ucanr.edu/News.

  • Key Discovery on How a Plant-Parasitic Nematode Infects Such a Wide Range of Organisms

    UC Davis nematologists, including Valerie Williamson, professor emerita in the Department of Plant Pathology, and associate professor Shahid Siddique, Department of Entomology and Nematology, have long wondered how the plant-parasitic nematode, the Northern root-knot nematode, is able to infect such a wide range of organisms, from monocots and dicots to annual crops and woody plants.

    Now a 15-member research team of international nematologists and biotechnologists, led by UC Davis nematologists, have gained insight into how the DNA of this nematode species, Meloidogyne hapla, facilitates their success.

    The discovery, hailed by the team as groundbreaking, “is the most complete and contiguous genome assembly for a plant-parasitic nematode to date,” agreed Williamson and Siddique, co-authors of a newly published paper, “High-Resolution Genome Assembly and Linkage Mapping in Meloidogyne hapla Reveal Non-Canonical Telomere Repeats and Recombination Hotspots Associated with Effector Proteins,”  in the open-access medical journal, PLOS Pathogens

    The peer-reviewed research is online at https://tinyurl.com/44zx2eh2.

    “Interestingly, we discovered that Meloidogyne hapla uses an unusual DNA repeat at the ends of its chromosomes instead of typical telomeres, suggesting it may have an alternative way to protect its chromosomes end,” Siddique said.

    “Overall, our study integrates high-resolution structural genomics, genetic mapping, and functional inference to uncover links between genome architecture, recombination landscapes, and host–parasite interactions,” said first-author Pallavi Shakya, a doctoral candidate in the Siddique lab who received her master’s degree in plant biotechnology from Wageningen University, The Netherlands.

    Other co-authors include UC Davis doctoral candidate Alison Blundell and UC Davis postdoctoral researcher Dadong Dai, both of the Siddique lab, and scientists from The Netherlands, France, Indonesia, Australia, and Croatia.

    “Plant parasitic nematodes cause billions of dollars of damage annually to plant crops globally,” said Williamson, a Fellow of the Society of Nematologists.  “Root knot nematodes (RKN) are the most damaging species group in large part because they are able to infect diverse crops including both monocots and dicots, annual crops and woody plants.”

    “Over twenty years ago, my group and others decided to focus on a single species as a model to serve as a resource,” Williamson related. “We chose the species Meloidogyne hapla due to its relatively simple DNA genome, its genetic tractability, and the observation that isolates of the nematode differed in plants that they could infect. While considerable progress was made in analyzing the DNA, attempts to completely understand the genome structure were hindered by the tiny size of the organism and limitations in technology.”

    However, in recent years, dramatic improvements in biotechnology and bioinformatics developed. “Our international team of nematologists and biotechnologists worked together to produce a complete assembly of the genome that represents the DNA sequence of full-length chromosomes,” she said, pointing out that “As far as we are aware, this is the most complete genome for a plant-parasitic nematode.”

    has several novel features: Chromosome ends do not resemble those of most other animals or plants; the chromosome structure differs between isolates of this nematode with breaks, rejoining and recombination between chromosomes of different isolates,” Williamson said. “This genome flexibility may provide a clue as to how root-knot nematodes are able to change the spectrum of hosts that they can infect.  It will also provide a resource for studying the genome of other important RKN species and allow identification of nematode genes that contribute to successful parasitism. This information should inform best strategies for RKN control as well as development of plants with increased resistance.”

    The Northern root-knot nematode causes significant economic damage to many crops by causing root galls, stunting, reduced yield, and disfigurement, which makes infected produce like carrots unmarketable.  The damage affects a wide range of plants, including vegetables, fruit trees, and wine grapes in certain regions. Infections are most severe in young plants, which can lead to complete crop destruction, while established plants may sustain significant yield reduction.

    The abstract:

    “Root-knot nematodes (Meloidogyne spp.) are among the most destructive agricultural pests that cause significant yield losses across a wide range of crops. Meloidogyne hapla is a valuable model for studying root-knot nematodes due to its parasitic diversity, small diploid genome, and a reproductive strategy that facilitates genetic analysis. Here, we report the most contiguous genome assembly to date for any plant-parasitic nematode built using PacBio HiFi, Oxford Nanopore, Illumina, and Hi-C sequencing. Genetic linkage analysis of F2 populations derived from crosses between M. hapla strains validated the assembly but also revealed anomalies indicating chromosome structure differences between parental isolates such as fissions, fusions, and rearrangements. Strikingly, we identified sharply delimited zones with extraordinarily high recombination on most chromosomes. Notably, several of these high recombination zones were significantly enriched for genes encoding secreted proteins, many of which contribute to parasitism.

    These findings suggest that meiotic recombination facilitates effector diversification and offer insight into how these parasites diversify their effector protein repertoire to change or expand their extraordinary host range. We further report the discovery of a novel 16-nucleotide tandem repeat and lack of canonical telomere repeats at chromosome ends. The localization of this 16-nt repeat at chromosome ends highlights a potentially divergent mechanism of chromosome-end maintenance in this nematode group. Overall, our study integrates high-resolution structural genomics, genetic mapping, and functional inference to uncover links between genome architecture, recombination landscapes, and host–parasite interactions.”

  • Kemin introduces RevoCURB™, a new safe and versatile soil treatment tool to address agricultural issues such as restrictions on fumigants and the requirements for buffer zones.

    SPONSORED CONTENT

    Fumigants are a cornerstone of conventional agriculture in the United States for combating soil-borne pests and diseases. However, fumigants also have significant limitations, including application requirements, buffer zone restrictions and the lack of available products for organic farmers.

    The role of fumigants in agriculture

    Fumigants are chemical agents applied before planting to eliminate pests, pathogens, and weeds, which protect crops and improve vigor and yields, especially in high-value crops like strawberries and tomatoes. Despite their effectiveness, most carry significant health and environmental risks, leading to strict regulations on their use, application timing, permitting, and buffer zones1,2. In some cases, these health concerns have led to complete bans on specific products, such as methyl bromide, which has been restricted in both the United States and Europe2,3.

    Buffer zone restrictions

    To reduce exposure risks, the Environmental Protection Agency (EPA) enforces strict buffer zones, areas where fumigant application is prohibited, near public spaces like schools and hospitals. Zone size depends on the fumigant used, application method, local environmental conditions, and distance to public spaces. While crucial for public safety and conservation efforts, buffer zones decrease usable farmland. Often, untreated buffer zones can lead to uneven pest control and reduced crop yields4. Buffer zones also add regulatory burdens, including signage and detailed management plans, increasing cost and complexity2.

    Additional limitations of fumigants

    Beyond buffer zone requirements, fumigants come with additional key limitations:

    • Cost: Fumigation is expensive, requiring investments in chemicals, labor, and regulatory compliance, which are often unaffordable for small-scale farmers.
    • Equipment: The application requires specialized equipment, including shank injectors, calibrated applicators, tarping systems, and enhanced personal protective equipment, which further increases total expenses.
    • Application Conditions: Efficacy depends on precise environmental conditions (soil temperature, soil moisture, weather) and properly calibrated equipment to ensure efficacy
    • Environmental Risks: Fumigants are highly volatile and can drift off-site, endangering nearby communities and ecosystems. Improper application may lead to water contamination or harm to non-target organisms.

    Organic alternatives to fumigants

    For organic farmers, the limitations of fumigants are even more pronounced, as organic certification prohibits the use of most synthetic fumigants. In response to these challenges, organic farmers rely on natural alternatives to manage soil-borne pests and diseases5:

    • Soil Solarization: Fallow fields are covered with plastic during peak heat for 4-8 weeks to trap solar energy, which can kill pathogens, pests, and weed seeds. This timeline may be challenging as the temperatures required for effective treatment coincide with peak growing seasons.
    • Anaerobic Soil Disinfestation (ASD)6: Organic materials like rice bran or mustard seed meal are incorporated into the soil and the soil is then saturated with water and covered with plastic to create anaerobic conditions. As oxygen is depleted, aerobic pests die and anaerobic species flourish, producing byproducts that further suppress pathogens. Once the field is cleared and prepared for planting, the reintroduction of oxygen into the soil then reduces anaerobic microbial populations, resulting in a cleaner overall soil. This process, however, can be quite expensive as it is water- and input-intensive and can be ineffective if fields are drained too early.
    • Crop Rotation and Cover Cropping: These practices disrupt pest life cycles and improve soil health; however, they are inadequate to knock down heavy infestations without additional inputs.
    • Biological Controls: Beneficial species help suppress pests via predation or competition. Their success depends on careful species selection, application timing, and environmental fit, and they work best when paired with other methods of control.

    Introducing RevoCURB™, a safe-to-use, 3-in-1 solution for organic and conventional growers.

    RevoCURB™ is a new OMRI-listed, 3-in-1 soil treatment designed to enhance crop health and yield by targeting plant parasitic nematodes, microbes, and pre-emergent weed seeds. Exempt under FIFRA 25(b), RevoCURB offers a 0-hour restricted entry interval (REI), no restrictions on maximum residue levels, minimal requirements for personal protective equipment, and no need for buffer zones. RevoCURB utilizes the power of Smart Blend Technology and four essential oils – thyme, clove, garlic, and cinnamon to provide control through multiple complementary modes of action. These oils disrupt cellular membranes on contact, inhibit nematode egg hatching, impact the nervous systems of juvenile nematodes present in the soil, causing paralysis and death, vaporize within the soil column, repelling pests and delaying repopulation and suppress weed seed germination.

    “These contact and repellency modes of action work in tandem upon application of RevoCURB to disrupt pest lifecycles and prepare soils for planting.” – Emma Trainer, Scientist at Kemin Crop Technologies.

    RevoCURB should be applied 14 days prior to planting or post-harvest and watered in per label directions to maximize efficacy and the zone of protection without harming crop seeds, seedlings, and plugs.

    Field trial to assess the effectiveness of RevoCURB on root-knot and stunt nematode populations on cucumber. San Luis Obispo, California (Credit: Bradley Booker at Pacific Ag Research) (SD-25-28093)

    RevoCURB protects young crops from multiple soil pest pressures, allowing for healthier plants and greater yields. Because it’s free from buffer zone requirements, REI, and residue restrictions, RevoCURB is ideal for transitional areas and organic acreages – bringing flexibility and safety where conventional fumigants fall short.

    For more information about RevoCURB, visit www.kemin.com/revocurb or contact us croptech@kemin.com

    References

    1. Panth, M. & Hassler, S. and F. Baysal Gurel (2020). Methods for Management of Soil-borne Diseases in Crop Production. Agriculture,
    2. United States Environmental Protection Agency. Soil Fumigant Toolbox. https://www.epa.gov/soil-fumigants
    3. European Commission. European Community Management Strategy for the phase-our of the critical uses of methyl bromide. April 2009. https://ozone.unep.org/sites/default/files/additional-reported-information/MeBr_Submissions/EC%20Management%20Strategy%20for%20Methyl%20Bromide.pdf
    4. Vansickle, J.J.; Smith, S.; and R. Weldon (2009). Impacts of EPA proposed buffer-zone restrictions on profitability of Florida strawberry growers. University of Florida Institute of Food and Agricultural Sciences; FE795.
    5. Bolda, M.P.; Dara, D.K.; Daugovish, O.; Koike, S.T.; Ploeg A.T.; Brown, G.T.; Fennimore, S.A.; Gordon, T.R.; Joseph, S.V.; Westerdahl, B.B.; and F.G. Zalom. Non-fumigant alternatives for soil disinfection. UC IPM Pest Management Guidelines: Strawberry. UC ANR Publication 3468. University of California Agriculture and Natural Resources, Davis, CA. https://ipm.ucanr.edu/agriculture/strawberry/non-fumigant-alternatives-for-soil-disinfestation/#gsc.tab=0
    6. Lopes, E.A.; Canedo, E.J.; Gomes, V.A.; Vieira, B.S.; Parreira, D.F.; and W.S. Neves (2022). Anaerobic soil disinfection for the management of soil-borne pathogens: a review. Applied Soil Ecology, 174.

    © Kemin Industries, Inc. and its group of companies 2025. All rights reserved. ® ™ Trademarks of Kemin Industries, Inc., USA. Always read and follow label directions. FIFRA 25(b) Exempt: RevoCURB has not been registered by the United States Environmental Protection Agency. Kemin Industries, Inc. represents that this product qualifies for exemption from registration under the Federal Insecticide, Fungicide, and Rodenticide Act. The products are not registered or authorized for sale in all states. Consult with your Kemin representative or state regulatory representative for approval of this use in your state, specific applications, and labeling. croptech@kemin.com | 800-752-2864 (ext.2).

  • Registration Opens for 2026 Farm Robotics Challenge

    The Farm Robotics Challenge, the only collegiate agricultural robotics competition of its kind, is officially launching its 2026 season. Registration is now open for undergraduate and graduate student teams from two-year and four-year colleges and universities across the United States and worldwide.

    The competition tasks students with designing, prototyping and field-testing robotics and AI-driven solutions to tackle real challenges facing modern agriculture. The Challenge is organized by UC ANR Innovate, the innovation arm of University of California Agriculture and Natural Resources, in partnership with the AI Institute for Next Generation Food Systems (AIFS).

    “What makes the Farm Robotics Challenge unique is that students work directly with farmers to identify and solve real problems,” said Gabe Youtsey, chief innovation officer at UC ANR and founder of UC ANR Innovate. “Teams are developing practical solutions growers can put to work, and the hands-on experience prototyping and field-testing prepares students for careers in agricultural technology, while helping address some of the pressing challenges our growers face today.”

    Lead sponsor the Reservoir to award Grand Prize investment

    The Challenge is pleased to announce a partnership with the Reservoir, a leading early-stage venture capital investor and robotics incubator dedicated to accelerating real-world agricultural technology. The Reservoir joins this year as a lead sponsor, bringing with it a commitment to help student innovations leap from concept to commercialization.

    As part of this partnership, the Reservoir will award a $50,000 Grand Prize investment to the winning team. This seed funding goes beyond a traditional competition prize, as it provides a powerful springboard for turning student-built prototypes into market-ready solutions with real agricultural impact.

    “The future of agriculture will be shaped by deep tech innovators who can move quickly from lab to field,” said Danny Bernstein, CEO of the Reservoir. “The Farm Robotics Challenge brings together the kind of early-stage talent we’re eager to back – engineers, scientists and entrepreneurs with the vision to tackle real problems and the grit to commercialize their solutions. By pairing this year’s $50,000 Grand Prize investment with our on-farm incubation and venture support, we aim to help these prototypes evolve into scalable companies delivering breakthrough technologies for growers.”

    Central to the competition is the expectation that student teams work directly with growers to identify prominent issues in agriculture that could be addressed using advanced robotics, AI and automation.

    “With this challenge, teams can target a broad range of agricultural activities, such as planting, weeding, harvesting, pest management and crop monitoring, as well as focused projects in data collection, mapping and on-farm automation,” said Steve Brown, associate director of the AI Institute for Next Generation Food Systems.

    Teams are encouraged to design and prototype solutions, using robotic platforms equipped with autonomous navigation systems, intelligent algorithms and custom attachments to address real-world agricultural problems. These projects are field-tested, ensuring that they are not only theoretically sound but also practically viable in production agriculture environments.

    Supported by leading technology partners such as Bonsai Robotics, the competition places strong emphasis on innovation, hands-on learning and collaboration with growers.

    “For the past four years, we’ve partnered with UC ANR Innovate and AIFS on the Farm Robotics Challenge because we believe the future of farming depends on the next generation of innovators. There are big problems to solve in how we grow our food, and we want these inventive, engineering minds focused on them,” said Brendan Dowdle, chief business officer at Bonsai Robotics. “Our robotics platform makes it easier to design, test and deploy AI, computer vision and autonomous systems. Every year, we’re inspired by the creativity and technical skill these students bring to the field, and the ideas just keep getting bigger. We can’t wait to see what they build next.”

    Prizes offered as part of multi-phase competition cycle

    The competition unfolds across several stages, beginning with the registration period starting in August, followed by a team formation and proposal research phase through October. Project proposals must be submitted by October 30, 2025.

    Teams then embark on a six-month development and testing phase, culminating in final project submissions due on May 3, 2026.

    The competition concludes with an awards ceremony set for May 20, 2026.

    Participation in the Farm Robotics Challenge offers numerous benefits. The competition will award over $100,000 in prizes across multiple categories, and select teams will be offered travel stipends to showcase their projects at FIRA USA, North America’s leading ag tech conference. Beyond the prizes, all participants gain access to a network of academic and industry professionals dedicated to building the future of farming.

    Throughout the competition, educational webinars will be available to help students stay informed about industry trends, develop entrepreneurial skills and gain valuable insights on topics such as intellectual property, company formation and venture capital financing, presented by experts from Morrison Foerster.

    “We are excited to partner with UC ANR Innovate and AIFS on the Farm Robotics Challenge,” said Michael Ward, co-head of the Morrison Foerster Food and Ag Practice. “To ensure that teams get their industry-changing ideas off the ground, it is critical that they have a solid understanding of the legal issues that arise when launching and growing a startup company in this field.”

    The webinars will feature interactive sessions designed to introduce teams to the legal knowledge needed to start and grow a business, protect their innovations and navigate the challenging regulatory landscape.

    “We will offer free confidential office hours to all competition participants to answer legal questions and provide guidance on moving their ideas into a company and taking steps to commercialization,” said Mitchell Presser, co-head of the Morrison Foerster Food and Ag Practice.

    Throughout the competition, student teams develop practical skills at the intersection of technology and agriculture, expand their professional networks and engage with a distinguished panel of evaluators and innovators.

    Past competitions have featured over 40 teams from across the U.S. and abroad, with previous winners including UC Davis, University of Georgia, University of Hawaiʻi at Mānoa and Olin College of Engineering (click to view past results).

    For those interested in participating, prospective teams are advised to assemble members with a range of technical expertise and secure a faculty or staff advisor. The next step is to partner with a grower to identify a meaningful agricultural problem and then design and rigorously test a solution using advanced robotics and AI.

    Comprehensive information, official rules and regular updates can be found on the Farm Robotics Challenge website. You can also register to participate in the Farm Robotics Challenge Info Session Webinar on September 10 at 4 p.m. (PDT).

    New for the 2025-26 academic year is the Farm Robotics Academy, intended for secondary school students. The Academy aims to equip both educators and students with knowledge and skills in leading-edge technologies that are reshaping the agricultural landscape. Learn more at https://www.farmroboticsacademy.ai/.

    Farm Robotics Challenge

    The Farm Robotics Challenge is organized by UC ANR Innovate and the AI Institute for Next Generation Food Systems, with lead support from the Reservoir, technology partner Bonsai Robotics, as well as Western Growers, Morrison Foerster, F3 Innovate, Taylor Farms, Beck’s Hybrids, Google.org, the California Tomato Research Institute, Linak U.S., and Plug and Play. The competition challenges college-level teams to identify and solve real-world agricultural problems using advanced robotics technology.

    For more information about the Farm Robotics Challenge, including details on how to participate or sponsor, visit https://farmroboticschallenge.ai.

    UC ANR Innovate

    UC ANR Innovate brings together people, resources and ideas to accelerate agricultural, food and biotech innovation in California. UC ANR Innovate develops practical technologies, generates research and policy insights, prepares a future-ready workforce and builds the ecosystems and partnerships that make innovation possible: locally, regionally and globally.

    The AI Institute for Next Generation Food Systems

    The AI Institute for Next Generation Food Systems (AIFS) is a USDA-National Institute of Food and Agriculture-funded research institute leveraging artificial intelligence to solve the world’s biggest challenges to crop and food production: ensuring a sustainable, nutritious, efficient and safe food supply while mitigating the impacts of changing conditions. For more information, visit https://aifs.ucdavis.edu.

    The Reservoir

    The Reservoir is a startup incubator and venture capital fund focused on helping ag tech startups succeed where agriculture happens – in the field. Reservoir Farms is the world’s first on-farm robotics incubator, starting in the Salinas Valley and expanding to other key regions like the Central Valley. Reservoir Ventures backs startups solving real problems in high-value crops. By combining R&D space, hands-on grower input and early-stage capital, the Reservoir helps turn promising ideas into tools for the growers who feed the world. Learn more at https://reservoir.co.

    Bonsai Robotics

    Bonsai Robotics is reimagining the agricultural industry with its AI-first platform that makes autonomous farming affordable, easy to use, and deployable across all farm equipment – whether retrofitted onto existing machines or built into next generation solutions. Its acquisition of farm-ng in 2025 combines its leading, vision-based autonomy software with modular, electric robotics to deliver next-generation machines adaptable for a wide range of crops, tasks and environments. Bonsai empowers growers to monitor and manage all farm equipment – new or legacy, autonomous or not – through a single, intuitive app. Learn more at www.bonsairobotics.ai.

    Morrison Foerster

    Morrison Foerster is a leading global law firm, with clients including some of the most innovative companies – from trailblazing startups to Fortune 100 enterprises. Morrison Foerster is the firm for Food + Agriculture, representing stakeholders across the value chain, from scientists in labs optimizing plant genetics, to farmers nurturing crops, to ag tech pioneers revolutionizing farm technology, to CPG companies and global brands selling your favorite foods. With unmatched scientific depth and deep sector knowledge, Morrison Foerster has helped shape the sector for over two decades. For more information, visit www.mofo.com.

    UC Agriculture and Natural Resources brings UC information and practices to all 58 California counties. Through research and Cooperative Extension in agriculture, natural resources, nutrition, economic and youth development, our mission is to improve the lives of all Californians. Learn more at ucanr.edu.

    To read more UC ANR news, visit our newsroom at ucanr.edu/News.

  • Revised Forecast Reveals Larger California Almond Crop

    The 2025 California Almond Objective Measurement Report published Thursday by the U.S. Department of Agriculture’s National Agricultural Statistics Service (USDA-NASS) estimates that the crop harvested in 2025 will come in at 3.0 billion meat pounds.

    The Objective Estimate is up 7 percent from USDA-NASS’s Subjective Forecast in May and 10 percent higher than last year’s crop of 2.73 billion meat pounds.

    “The Objective Measurement reflects the hard work by California almond growers during uncertain times,” said Clarice Turner, president and CEO of the Almond Board of California. “While shipping has remained consistently strong, we know uncertainty remains surrounding future trade policies. We continue to engage with trade partners and stakeholders to encourage constructive solutions that support fair and stable trade so California almonds can continue to be enjoyed by consumers around the world.”

    The 2024 harvest yielded 2.73 billion pounds, 2.5% below the 2024 Objective Report estimate, reflecting the difficulty of precisely forecasting crop size given the current fluctuations in weather and economic factors.

    The report shared the 2025 almond crop experienced variable weather during bloom, which began in early February and peaked in the middle of the month. Storms brought rain, wind and hail, which hindered bee hours and blossom growth. Conditions improved in early March with warm temperatures accelerating the crop’s progress through the end of bloom. Mild temperatures and timely rain in spring supported nut growth and continued through early summer, lessening heat stress in orchards. Lower than normal pest and disease pressure have been reported. Harvest is expected to begin on time.

    USDA-NASS’ forecasted yield is 2,160 pounds per acre, up from 1,980 in 2024. The forecast for the average nut set per tree is 4,364, an increase of 7 percent compared to 2024. The Nonpareil average nut set of 4,526 is 9 percent higher than last year. The average kernel weight for all varieties sampled was 1.60 grams, down 0.6 percent from the 2024 average weight. The Nonpareil average kernel weight was 1.60 grams, down 2 percent from the 2024 average weight.

    The 2025 Objective Report is based on actual almond counts using a statistically rigorous methodology. The survey was conducted from May 24 to June 28 and 1,892 trees were sampled in 946 orchards. USDA-NASS conducts the annual Objective Report, Subjective Forecast and Nursery Survey to provide the California almond industry with the data needed to make informed business decisions.