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Pest/Disease Management

Mating Disruption Research to Combat Spotted Lanternfly Included in CDPR’s $3.75 Million Investment

The California Department of Pesticide Regulation (DPR) today awarded $3.75 million to fund 10 research projects that explore Integrated Pest Management (IPM) tools for urban, non-agricultural and agricultural pest management. The 2021-2022 DPR Grants Programs funded by the state budget represent a 617% increase from the previous year’s funding to accelerate the transition to safer, more sustainable pest management. “The …

USDA-ARS and Weed Science Society of America Present Weed Science Webinar Series

The USDA’s Agricultural Research Service (ARS) and Weed Science Society of America (WSSA) today announced the launch of a free webinar series focusing on current research and advancements in managing weeds and invasive plants. “ARS scientists have worked in a wide range of agricultural and natural ecosystems that include agronomic and horticultural crops, pastures, forests, rangelands, wetlands and riparian areas,” …

Aphid ‘honeydew’ May Promote Bacteria that Kill Them

The word ‘honeydew’ sounds benign, but the sugary waste product of aphids can promote growth of bacteria that are highly virulent to the pests, according to a new study. The research takes a step towards understanding how some strains of the bacteria Pseudomonas syringae that live on leaves and are pathogenic to aphids might one day be used to control …

Citrus Canker in Nursery Stock Sold to CA, CDFA & USDA Take Action to Identify & Destroy Affected Plants

Citrus Pest & Disease Prevention Program — The United States Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) has confirmed the presence of citrus canker disease in a nursery in South Carolina. The nursery sells plants to consumers through online sales, including four locations in California since August 2021. Retail nurseries did not receive these plants. Citrus canker causes citrus …

Fresno County Vacancy on Citrus Pest & Disease Prevention Committee

The California Department of Food and Agriculture is announcing one vacancy on the Citrus Pest and Disease Prevention Committee. The Committee advises the CDFA Secretary on activities associated with the statewide citrus specific pest and disease work plan that includes, but is not limited to, outreach and education programs and programs for surveying, detecting, analyzing, and treating pests and diseases …

Research Indicates Paint Not Effective At Protecting Young Avocados From Herbicide Drift

California Avocado Commission — While it is often common practice for fruit growers to apply white latex paint to the bottom 2 to 3 feet of young, newly planted trees in order to provide some protection from herbicide drift, researchers note there is little evidence to prove this practice is effective. A recent blog post by Dr. Ben Faber summarized the …

CA Avocado Disease Management Webinar, FEB. 16

The California Avocado Society, California Avocado Commission and UC Cooperative Extension are hosting a free online Grower Webinar: Avocado Disease Management session on Wednesday, February 16 from 9:00 a.m. – 11:00 a.m. The webinar is designed to provide growers and grove managers with information concerning management strategies for diseases that California avocado trees are prone to. The online seminar will cover: …

Spray Timing for Almond Bloom Diseases with Brent Holtz

Beekeepers have begun delivering hives to almond orchards and the buds of all varieties are swelling and prepping for bloom. Watch this brief interview with UCCE Farm Advisor Brent Holtz as he shares some important advice with growers regarding bloom fungicide spray timing, and read his monthly Almond Tasks column in Pacific Nut Producer Magazine. Please thank this video’s sponsor Trece for …

Areawide, Coordinated ACP Treatment Participation More Important Than Ever For Citrus Growers

As the threat of Huanglongbing (HLB) continues, industry members know that the best way to prevent HLB from infecting our groves is to limit populations of the Asian citrus psyllid (ACP), which spread the deadly disease. This winter, it’s critically important for California’s citrus growing operations to actively participate in local, area-wide or coordinated treatments to further boost our industry’s efforts in …

HLB Quarantine Expansion Connects Boundaries in Jurupa Valley and Riverside Areas

Effective Dec. 6, 2021, the California Department of Food and Agriculture (CDFA) has expanded the Huanglongbing (HLB) quarantine boundaries in Riverside and San Bernardino counties in the Jurupa Valley and Riverside areas to create one quarantine area, connecting parts of Orange, Los Angeles, Riverside and San Bernardino counties. A map of the boundary expansion can be found below and at https://www.cdfa.ca.gov/plant/hlb/regulation.html#maps. …

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