California Fruit and Vegetable

Tag: Integrated Pest Management

  • Plant-Parasitic Nematode Control Begins with Accurate Species Identification

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  • UC Davis Professor Honored for Citrus Pest Research

    UC Davis Distinguished Professor Walter Leal recently received an award from the citrus research organization, FUNDECITRUS,  São Paulo, Brazil, in recognition of his “outstanding contribution to citriculture, emphasizing his work on the Asian citrus psyllid and a Lepidopteran pest named “bicho furão” (citrus fruit borer).

    Leal, a member of the Department of Molecular and Cellular Biology faculty and a former professor and chair of the UC Davis Department of Entomology, is the first U.S.-based researcher to receive the FUNDECITRUS. award.

    A native of Brazil and a Fellow of both the Entomological Society of America and the Entomological Society of Brazil, Leal is the principal investigator of a research agreement between UC Davis and the Fundecitrus-Fund for Protection of Citriculture, based in São Paulo.

    Leal’s discovery of the sex pheromone of the Asian citrus psyllid–which spreads the deadly citrus greening disease, Huanglongbing (HLB)–may result in the insect version of “The Fatal Attraction.” The team is now working on a formulation to be used in traps.

    The Asian citrus psyllid, Diaphorina citris, is a sap-sucking bug that is one of two confirmed vectors of HLB. A native of Asia, it is found in parts of the Middle East, South and Central America, Mexico, and the Caribbean. It was first detected in the United States in 1998 (Palm Beach County, Florida) and is now also found in Louisiana, Georgia, Arizona, South Carolina, Texas, and since 2003, in California  (San Joaquin Valley and Central Coast counties, including San Luis Obispo.)

    Former UC Cooperative Extension advisor Surendra Dara of San Luis Obispo and Santa Barbara counties (now at the University o Hawaii, Mānoa) earlier said that “The Asian citrus psyllid is a major threat to the multibillion dollar citrus industry in the United States. When an insect pest vectors a deadly disease, the threat is more serious and ACP being an invasive pest made its management even more challenging.  Discovery of a sex pheromone by Dr. Leal’s team is a major breakthrough not just for managing a dangerous invasive pest, but also a significant contribution to environmental sustainability.  I envision this pheromone becoming a clean, green, mean weapon in the IPM arsenal against ACP.”.

    Integrated pest management specialist and UC Davis Distinguished Professor Emeritus (on recall) Frank Zalom, of the UC Davis Department of Entomology and Nematology and a past president of the Entomological Society of America, earlier hailed the discovery as a “significant breakthrough in preventing the spread of this serious citrus insect, and may offer a less toxic method for its control.” He was not involved in the study.

    Pheromones and other semiochemicals are widely used in agriculture and medical entomology. “Growers use them as lures in trapping systems for monitoring and surveillance, as well as for strategies for controlling populations, such as mating disruption and attraction-and-kill systems,” Leal noted.

    ACP feeds on new leaf growth of oranges, lemons, mandarins, grapefruit and other citrus, as well as some related plants. Infected psyllids can transmit the bacterium Candidatus Liberibacter asiaticus, which causes the fatal citrus disease. An early symptom of HLB in citrus is the yellowing of leaves on an individual limb or in a sector of a tree’s canopy.

    Citrus trees infected with HLB usually die within five years, according to the UC Statewide Integrated Pest Management Program. There is no known cure. “The only way to protect trees is to prevent spread of the HLB pathogen in the first place, by controlling psyllid populations and removing and destroying any infected trees,” UC IPM says on its website.

  • Widespread Rat Infestation in Orchards & Vineyards, CAPCA on Tools & Resources Moving Ahead

    As if California growers and PCAs didn’t have enough on their plates with rising input costs compounded by the most restrictive laws & regulations in the nation, they’ve been further challenged with an unusual pest problem this year — rats! An  increasing number of abandoned orchards and vineyards due to poor economic circumstances has caused a feeding frenzy for some uninvited rodent guests, whose numbers have been multiplying at unprecedented levels. Ruthann Anderson, President/CEO of the California Association of Pest Control Advisers (CAPCA), met with Matthew Malcolm on California Ag Network to explain this issue and what they are doing to help provide the tools and resources growers and PCAs to combat this emergency situation, beginning with an anonymous survey they can fill out HERE. Watch this brief video to learn more.

  • California Orchards Blossom with NRCS Help Managing Pests

    California’s Central Valley is a land of agricultural abundance, known for its incredible diversity of crops including fruits, vegetables and nuts. It produces approximately 25% of the nation’s food.

    But with plenty can come pests – in as many varieties and types as the crops grown in the region. Area farmers have worked with USDA’s Natural Resources Conservation Service (NRCS) to implement integrated pest management into their orchard operations with marked results.

    Sandra and Mike Smith of Smith Family Farm in Fresno, California, showed NRCS Chief Aubrey Bettencourt the benefits of the practices that they have incorporated with NRCS assistance as they toured their 36-acre almond orchard.

    Established in 1903, the farm is on the cusp of welcoming its fifth generation of farmers. By adapting their operations to increase conservation and sustainability practices, the Smiths hope to pass on a rich legacy to their young granddaughters.

    The Smiths highlighted the impact that integrated pest management practices – notably hormone disruptors – have had in their fight to combat navel orangeworms in their almond orchards.

    “We were at 17.1% loss of our almond crop two years ago because of the infestation of navel orangeworms,” Mike Smith told Chief Bettencourt. “Once we implemented the mating disrupters, we were able to bring our almond reject numbers down to 1.1%.”

    Navel orangeworms burrow into almond nuts to feed on the kernel, damaging the nut and impacting producers’ overall yield and harvest quality. Deploying pheromone-based mating disruption tools can reduce navel orangeworm populations by hindering male moths’ ability to locate females.

    The Smiths have also leaned on NRCS technical assistance to implement other conservation techniques to increase the health of their orchard. The family now prioritizes composting and increasing organic matter, guided by the knowledge gained through NRCS collaboration.

    Further north, Chinchiolo Farming Co., Inc., a family-run business located in Lodi, California, is managing orchards of a different kind while embracing similar production practices.

    Producer James Patrick Chinchiolo has worked to uphold a century-old farming legacy, started by great grandfather Italian immigrant James Joseph Chinchiolo. Chinchiolo has worked with NRCS to incorporate a number of conservation practices including cover crops, tractor replacements, orchard removal and soil incorporation.

    Like the Smiths, Chinchiolo has dealt with pest issues, incorporating a Biologically Integrated Orchard Systems (BIOS) approach in managing his orchards. The BIOS system aligns with NRCS principles, embracing the implementation of conservation practices like cover cropping, beneficial insect habitat, and compost application to keep pests at bay.

    “We aim to foster a more ecologically balanced environment within our orchards,” Chinchiolo said during his discussion with Chief Bettencourt. “We are focusing on minimizing our inputs and creating more habitat for beneficial insects to flourish to help control unwanted pests.”

    Conservation practices like cover cropping and compost application not only help pollinators flourish – a crucial part of growing beautiful cherries – they also protect the trees’ overall health, improving soil structure and water retention.

    After last summer’s heat impacted this year’s cherry crop, Chinchiolo is working to take additional measures to make his trees more heat resistant in preparation for next season.

    “Growing cherries is never predictable. But it’s always beautiful.” Chinchiolo said.

    Helping People Help the Land

    During her visit, Chief Bettencourt emphasized that the agency’s primary focus is to give producers the tools that they need to be the best producers that they can be – increasing their yield while stewarding the nation’s natural resources.

    “Producers are the solution, and we want to empower them by getting our highly skilled staff out in the field to provide technical support. We want to streamline our programs to work better and faster for producers,” she said.

    NRCS helps farmers, ranchers and forest landowners make critical investments in their operations and local communities by helping them implement proven practices to ensure all of America’s farms, ranches and private lands are economically viable and thriving.

    If you are interested learning how these programs can help you achieve your operational and land management goals, find your local USDA Service Center and get started today.

    Follow the Chief through our blog series as she meets with producers across the country to learn how NRCS has helped their operations. — By Debra Denhart, Public Affairs Specialist, USDA

  • Watermelon Growers Face Challenges When Expanding Their Season

    Watermelon is a favorite summertime treat for consumers. Naturally anticipating those summer picnics and BBQs, consumers may want to enjoy this sweet treat earlier or even later in the year, outside of California’s traditional harvest window. Determined to meet consumer demand with an innovative spirit, California growers are planting watermelons earlier than ever before and expanding their seasons late into the fall as well. This does not come without consequence though, and growers faced some particular challenges during their extended 2024 season that they won’t soon forget. Watch this brief interview as Zheng Wang, UCCE Vegetable Crop Advisor — specializing in Central Valley melon crops, discusses these challenges with Matthew Malcolm on California Ag Network. Read more in California Fruit & Vegetable Magazine.

  • California Association of Pest Control Advisers Celebrates 50th Conference

    The California Association of Pest Control Advisers (CAPCA) recently gathered for their 50th annual conference. Bringing together a bright group pest control advisors tasked with protecting the most diverse agricultural landscape in the nation, watch this special video presentation highlighting what CAPCA is all about and what it means to be a member of this organization as they celebrate this milestone year.

  • 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.

  • State of the California Pest Control Adviser

    Pest Control Advisers (PCAs) in California are some of the brightest and versatile in the nation. They each generally cover a wide spectrum of crops grown under a many different conditions and pest challenges.  Watch this brief interview with Ruthann Anderson, President and CEO of the California Association of Pest Control Advisers, as she discusses the current State of the California Pest Control Adviser, as well as an opportunity for PCAs and their growers to get grant funding to tell their IPM stories. Learn more and apply at: https://capca.com/memberships/#study

    Please thank this video’s sponsor Thunder Creek Equipment for their industry support.

  • CDFA Teams up with Partners to Introduce California Pollinator Coalition

    A broad array of organizations from across California’s agricultural and environmental landscape today announced a working coalition to address their shared commitment to the health of wild and managed pollinators.

    The Coalition is focusing on increasing the value working lands provide to our environment, to benefit biodiversity and farmers alike. The California Pollinator Coalition, convened by Pollinator Partnership, the California Department of Food and Agriculture, and the Almond Board of California, includes more than twenty organizations–representing the large majority of California’s crop and range land–pledging to increase habitat for pollinators on working lands.

    Together, the goal is to increase collaboration between agriculture and conservation groups for the benefit of biodiversity and food production. The result will be on-the-ground improvements, technical guidance, funded research, documentation of relevant case studies, and tracked progress toward increasing healthier pollinator habitats.

    Achieving this bee friendly goal is laden with benefits for farmers and the environment in California, increasing biodiversity and sequestering more carbon in the soil.

    The Coalition also hopes its success will serve as a model for even more collaboration among interests who have not always been aligned, but who are willing to come together in partnership to confront common challenges.

    “What we are doing in California is acknowledging the urgency to address the critical issue of protecting all pollinators, including native and managed species,” said Laurie Davies Adams, President and CEO of Pollinator Partnership. “Agriculture and conservation must work together to achieve this goal, especially when we will be facing many of the same issues –increasing temperatures, erratic and unpredictable weather, fires, drought, soil depletion, and more. The outcome will not be a tidy report that sits on a shelf, but rather a metric of acres, projects, and species added to the landscape while agriculture continues to profitably feed the nation.”

    The collective land represented by coalition members will provide the critical mass to address habitat on an unprecedented scale, for the benefit of beneficial insects, such as bees, butterflies, beetles, wasps, moths and more. California is home to more than 1,600 native bees and hundreds of other species of pollinating insects. Globally, pollinators provide service to more than 180,000 different plant species, more than 1,200 crops, and are responsible for producing an estimated one out of every three bites of food. They sustain our ecosystems and support natural resources, all while adding $217 billion to the global economy each year.

    But pollinator populations are declining and often suffer from the same challenges as California’s agriculture. The Coalition will work together on a variety of fronts to support pollinators:

    •Preparing farmer-friendly guidance to buildand maintainpollinator habitat on farms and ranches

    •Promoting voluntary, incentive-based habitat establishment projects and Integrated Pest Management (IPM) practices

    *Conducting research and disseminating relevant science

    •Monitoring outcomes (adoption rates and effectiveness of practices)

    “Collaborative action can mitigate risks to California’s pollinators, and that’s exactly why this coalition has come together,” said Karen Ross, Secretary of California Department of Food and Agriculture. “We need urgent action, yet the first step in the process is building trust that encourages, enables, and enhances the result. The California Pollinator Coalition is a big step forward in a journey of grower and conservation groups voluntarily demonstrating leadership.”

    “This will not be an easy or quick fix,” said Josette Lewis, Chief Scientific Officer of the Almond Board of California. “It will require a robust and sustained effort, but we are determined to be part of the solution. Almond growers and many other farmers depend on pollinators to produce a crop and pollinators depend on us to provide safe habitat. Working lands can and should be part of the solution.”

    “Farm Bureau supports voluntary, farmer-friendly efforts to improve habitat for native pollinators, and we have long advocated improved research on pollinator health,” said Jamie Johansson, President of the California Farm Bureau. “We will work with the coalition for the benefit of native pollinators and managed bees, and to assure stability for the domestic bee business.”

    “Climate change will affect the wildlife of California and the way we grow food in many ways,” said Dan Kaiser, director of conservation at Environmental Defense Fund. “The best chance for biodiversity and farms to thrive is to rebuild the natural infrastructure that supports pollinators, soil health and water resilience throughout the Central Valley. This coalition will promote robust research and guidance to support a more resilient and biodiverse agricultural landscape.”

    While just beginning its work, the Coalition is catalyzing new collaborations and continuing to recruit partners who understand the urgency and share the common goal of supporting both the health of pollinators and agriculture. Current California Pollinator Coalition membership includes:

    • Agricultural Council of California
    • Almond Alliance of California
    • Almond Board of California
    • California Alfalfa and Forage Association
    • California Association of Pest Control Advisers
    • California Association of Resource Conservation Districts
    • California Cattlemen’s Association
    • California Citrus Mutual
    • California Department of Food and Agriculture
    • California Farm Bureau Federation
    • California State Beekeepers Association
    • California Sustainable Winegrowing Alliance
    • Environmental Defense Fund
    • Monarch Joint Venture
    • Monarch Watch
    • Pollinator Partnership
    • Project Apis m.
    • University of California Agriculture and Natural Resources
    • USDA Natural Resources Conservation Service of California
    • Western Growers
    • Dr. Neal Williams, University of California, Davis

    About the California Pollinator Coalition — The California Pollinator Coalition, convened by Pollinator Partnership, the California Department of Food and Agriculture and the Almond Board of California, is made up of a diverse group of agricultural and environmental organizations with the shared goal of providing enhanced habitat for pollinators. The Coalition and its members have pledged to increase habitat for pollinators on working lands. Additionally, the group plans to promote research and track its progress toward healthy and abundant habitats.