Topics in Subtropics

Topics in Subtropics Blog
You can subscribe to this  blog with multiple entries per week reflecting what's happening with subtropical crops and upcoming educational events.  Just click on the "Subscribe" button just to the right of this paragraph.  There's also our seasonal quarterly Topics in Subtropics newsletter found at our Ventura, Santa Barbara, San Luis Obispo, Riverside, San Diego, Tulare and Kern Counties Cooperative Extension websites.
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ACP

ACP Control in the Field Webinar

June 18, 2026
By Ben A Faber
Tuesday, June 23, 2026, at 10:00 AM ON THE GROUND WITH CA-CRAFT California Citrus Research and Field Trials (CA-CRaFT) was started in 2023 to develop practical, field-based ACP management strategies under real commercial citrus conditions across California. Since then, the program has expanded into a large,…
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ACP Adult

ACP Survey

June 17, 2026
By Bodil N Cass
UC ANR Asian Citrus Psyllid Distribution & Management Website Evaluation SurveyWe are currently updating the UC ANR Asian Citrus Psyllid Distribution and Management Website, available here to review before this survey: https://ucanr.edu/site/asian-citrus-psyllid-distribution-and-management…
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shot hole borer

The Beetles That Could Threaten California’s Avocados

June 17, 2026
By Ben A Faber
In 2012, avocado growers were presented with the news that a newly discovered invasive beetle, named the polyphagous shot hole borer (Euwallacea fornicatus), could play havoc with production in Californian groves. Native to southeast Asia, the new arrival was a species of ambrosia beetle, a small weevil that…
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atemoya

The Latest Topics in Subtropics Newseletter

June 10, 2026
By Ben A Faber
Read it NowTOPICS IN THIS ISSUE • California converted its irrigation to save water. So why is the energy bill going up? • Silent Invaders: The beetles that could threaten California’s avocado empire • Avocado branch canker: what growers need to know and what we are learning • Hydrogel baits offer targeted…
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overgrown avocado

Avocado Pruning Workshop

June 10, 2026
By Ben A Faber
June 26, 2026, FRIDAY.  9:30 am - 11:30Come out to Moorpark to get a refresher on pruning avocados.  Apricot Lane Farm, 10700 Broadway. Follow signs south for the Garden Barn, Check in there.  There will be a tasting of avocados.  then we'll set to prune some trees, 5 different methods.To…
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