Topics in Subtropics

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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.
asphyxiated tree white washed

With Rain, Mulch is Bad and Weeds are Good?

January 8, 2026
By Ben A Faber
Rain is wonderful stuff. If it comes and washes the accumulated salts of the last several years out of the root zones of citrus and avocado, that's a good thing. But what happens if there is a little too much of the good stuff? In the winter of 2005, Venture got over 40” of rain, which is 200% of what is…
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workshop

Get into the Water with this Workshop

January 7, 2026
By Ben A Faber
The 2026 International Microirrigation School for Crop Production will be offered for the very first time from March 30th to April 3rd, 2026. This one‑time, intensive course includes three days of classroom instruction at the University of California, Davis and two days of field visits throughout the San…
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masthead

Topics in Subtropics - Edición española

January 7, 2026
By Ben A Faber
TEMAS EN ESTA EDICIÓN - El Otono 2025• Resumen sobre la producción de dátiles• Directrices para el control del oídio de la uva• Pudrición seca de la raíz de los cítricos: una plaga persistente causada por elFusarium solani en California• La detección de plagas es necesaria para el estudio de investigación•…
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masthead

Fall Edition of Topics in Subtropics Newsletter

January 7, 2026
By Ben A Faber
It's here finally the 2025 Fall edition of Topics in Subtropics Newsletter.  The last of the year.  And now working on the Winter 2026 edition.Topics in Subtropics, Fall 2025 - UCCE Statewide and WorldwideEditor: Ashraf El-kereamy Fall 2025 Vol. 26 (iv)TOPICS IN THIS ISSUE• Highlights from Citrus…
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Apple

Fruit Tree Course in Beautiful Davis, CA

January 7, 2026
By Ben A Faber
A fruit tree is not a basil plant or a geranium.  It's a tree, and not only that it's a fruit tree.  Learn the basics and the intricacies of growing fruit trees of all kinds.  Sign up for a wild journey.Please join us for the 2026 Principles of Fruit and Nut Tree Growth, Cropping, and…
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