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Pest/Disease Management

California Growers Finding Alfalfa Weevil Difficult to Control with Insecticide Resistance

The ongoing drought is putting more than enough pressure on our dairy feed producers as it is in California; however, alfalfa weevil also continues to wage war over the state’s alfalfa crop as insecticide resistance for this pest continues to build. Watch this brief interview with Ian Grettenberger from the UC Cooperative Extension as he explains the situation.  Read more …

$4.65 Million DPR Grant Application to Fund Innovative Solutions Supporting More Sustainable Pest Management Tools

The California Department of Pesticide Regulation (DPR) today opened the application period for the 2023 Alliance and Research Grants cycle, offering $4.65 million in potential funding to accelerate the transition to safer, more sustainable pest management in agricultural, urban and wildland settings. “California is a leader in the development of more sustainable pest management,” said DPR Director Julie Henderson. “DPR-funded …

PD/GWSS Board Ups Assessment Rate for 2022 California Grape Harvest

The Pierce’s Disease/Glassy Winged Sharpshooter Board (PD/GWSS Board) recently voted to set the grower assessment rate in support of the Pierce’s Disease Control Program (Program) at $1.25 per $1,000 of crop value for the 2022 harvest. This assessment provides vital funding for research on GWSS and other designated vineyard pests and for research on developing crop resistance to PD. “CAWG …

What is the Gumming on My Almond Trees, What to Know about Almond Canker Diseases

It’s not uncommon to find gumming on the trunks and scaffolds of some almond trees when walking through an orchard.  While it can be very concerning for the health of the tree, determining whether or not a canker disease is causing it is not so simple.  Watch this brief interview with UC Davis Plant Pathologist Florent Trouillas as he explains …

What are My Options for Managing Vine Mealybug in the Vineyard?

Vine mealybug is a major pest grape growers all over California have to deal with. Not only does this insect produce honeydew that serves as a substrate for black sooty mold, but is also a vector for spreading devastating Leafroll-associate viruses. Watch this brief interview with UCCE Entomology Farm Advisor David Haviland as he shares options growers have for managing this …

Best Farming Practices for Treated Seeds Underscores Commitment to Environmental Stewardship

As planting season begins across the West, Western Plant Health is reminding farmers about the importance of following basic steps that will help ensure the ongoing stewardship of pesticide-treated seeds, which help reduce the overall use of pesticides. This major agricultural advance provides seed treatments that help protect developing seeds during their most vulnerable time – at planting and germination. …

Terrestrial Fungus May be Key to Farming in Space

Mold is something that most people try to avoid, but NASA may soon welcome a certain type of mold aboard its spacecraft. On long-distance space voyages of the future, astronauts will have to grow some of their own food. That could be problematic, as there is notoriously little unused space aboard ship and crops take a long time to grow. …

Tips to Save Avocado from Root Rot

Root rot is a term referring to any disease where the pathogen damage and deteriorate the plant’s root system. Root rot can occur on most woody and herbaceous plants. Root rot is caused by many soil-borne fungi. Most fungi causing root rot to prefer wet soil conditions. Some of them produce spores (microscopic biological particles that allow fungi to be …

Asian Citrus Psyllids Found in Fresno County

The California Department of Food and Agriculture’s Plant Pest Diagnostic Center (PPDC) has identified two Asian citrus psyllids (ACP) on a glassy-winged sharpshooter trap from a packinghouse in the Orange Cove area of Fresno County. This has been the first time that the ACP has been detected in Fresno County since November 2019. Following confirmation of the ACP detections, agricultural …

Growers Petition for a Sonoma County Winegrape Pest & Disease Control District

Over the course of more than 18 months, a group of viticulturists and vineyard owners have been working together to research both the benefits of, and the process for establishing a Winegrape Pest and Disease Control District in Sonoma County. They have engaged in research and discussed an effort with elected and appointed Sonoma County Officials, University of California Cooperative …

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