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.
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Citrus mealybug

Citrus Mealybug Workshop

April 28, 2025
Citrus Mealybug Field Day at Lindcove Sign up clicking on this link or email sangautam@ucanr.edu Instructors: Dr. Sandipa Gautam and David Haviland Course Objective: To teach PCAs about citrus mealybug, an emerging concern for citrus growers. The field day will focus on lectures on pest…
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Alternative Pollinators?

Birds Do It, Bees Do It, Even Slugs Do It - Pollination

April 17, 2025
By Ben A Faber
A recent article covers pollination, especially of flowers in dark places.  Dark, meaning at night, and in places like forests where bees might not go, because it's too dark.  But beetles and bats, and moths and slugs might thrive in these environments. Even cockroaches have been shown to be…
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HLB Symptoms

HLB Quarantine Area Expands

April 17, 2025
By Ben A Faber
The California Department of Food and Agriculture (CDFA) declared a citrus quarantine expansion in San Diego County’s Valley Center on March 26. The expansion occurred after detection of HLB disease in two citrus trees in residential neighborhoods in the Valley Center area during regular inspections.  …
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Measuring Water

Avocado Irrigation Workshop

April 17, 2025
By Ben A Faber
On June 17, the University of California Cooperative Extension Agriculture and Natural Resources department is hosting a comprehensive Avocado Irrigation Workshop from 1:00 – 4:00 p.m. The seminar will take place at the San Diego Farm Bureau located at 420 South Broadway, Escondido, CA.The three-hour…
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Sodic Soil

When MIght Gypsum Work?

April 15, 2025
By Ben A Faber
With the drought our perpetual salt problems are exacerbated due to less water and often more saline water.  The question keeps coming up if gypsum (calcium sulfate) can help correct the problem.  And the answer is maybe, but along the coast, probably not.  The problem there is confusion about…
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