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May 2025Archived

 

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UC Cooperative Extension Sonoma County: Page

Current Newsletter

We asked an author cited in this article important questions provided by readers. Check out our short interview with Ph.D. Candidate, Lauren Marigliano here: https://cesonoma.ucanr.
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UC Cooperative Extension Sonoma County: Page

Threecornered alfalfa hopper degree day model

The threecornered alfalfa hopper (TCAH) is a vector of Grapevine red blotch virus that causes Grapevine red blotch disease in vineyards. A degree day model was developed to predict the ideal time frame for ground cover management to help reduce TCAH populations in vineyards.
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UC Cooperative Extension Sonoma County: Page

Past Advisors

Rhonda J Smith, Viticulture Farm Advisor Emeritus Rhonda Smith served as the Viticulture Farm Advisor for Sonoma county prior to Christopher Chen's arrival and specialized in: Pest Management Irrigation Pierce's Disease Berry Shrivel Plant Growth Regulators Red Blotch Disease July 2020, Rhonda Smith...
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UC Cooperative Extension Sonoma County: Page

Grower Resources

This page links to specialized topics in viticulture such as frost, pests and diseases, soils, and more.
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UC Cooperative Extension Sonoma County: Page

2021 North Coast IPM Seminar Videos

What is drift? Darien Pearson, Environmental Scientist, California Department of Pesticide Regulation Disclaimer: California Department of Pesticide Regulation can only confirm that the information given in this presentation is valid at the time the presentation was given (December 1st, 2021).
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UC Cooperative Extension Sonoma County: Page

Bagrada bug

The Bagrada bug, Bagrada hilaris, is a small invasive stink bug originating from East Africa and is considered a major pest in Africa, Iran, Iraq, Pakistan, Italy, Sri Lanka and India. It was first reported in southern California in 2008 and has slowly spread in agricultural areas of California.
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UC Cooperative Extension Sonoma County: Page

Questions?

Ask the experts about tree health, get answers, and contribute to the public database of California tree problems by visiting UC Berkeley's Tree FAQs - Tree Health Answers & Questions Contact the SOD Specialist Master Gardeners: - call the information desk and ask to speak to a SOD Specialist at (70...
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UC Cooperative Extension Sonoma County: Page

In the News

In collaboration with the University of California and The Center for Environmental Inquiry at Sonoma State University, citizen scientists in Sonoma County are collecting bay laurel leaves to assist in controlling the pathogen responsible for Sudden Oak Death.
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UC Cooperative Extension Sonoma County: Page

En Español

- sbado 30 de abril de 2022 de 2:00 p.m. a 5:00 p.m.
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