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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fire on the hill

Fire Webinar and Information

August 25, 2025
By Ben A Faber, Royce E Larsen
And even more information:https://ucanr.edu/county/cooperative-extension-ventura-county/fire-information 
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Dust Storm Spreading Valley Fever Spores

Valley Fever Season

August 20, 2025
By Ben A Faber
This month, the California Department of Public Health reported that Valley fever cases are on track to surpass last year’s record number of over 12,500 cases.The infection, caused when people inhale spores of the naturally occurring Coccidioides fungus, made up fewer than 1,000 cases back in 2000 in…
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Dripper

The Seeds of Emitter Clogging

August 15, 2025
By Ben A Faber
Emitter clogging – either microsprinkler or drip, they both emit – is fairly easily dealt with through proper filtration for particulates like sand and gunk; with chemigation for clearing out bacterial and algal slimes and chemical precipitates; and just regular flushing to deal with stuff that builds up…
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What Would A WoodPecker Do If It Could?

August 15, 2025
By Ben A Faber
Recently we were called out to inspect trees that had unusual cankers.  Unusual, because it was a cluster of about 20 trees and the cankers had insect larvae in the liquid sap that had accumulated in the cankers.When I see an avocado tree like this with discrete white cankers going up and down a branch…
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cover cropped citrus

Soil Conservation Practices and Cover Cropping

August 11, 2025
By Ben A Faber
Reducing Tillage On-Farm and Cover Cropping in the US and California and Some LimitationsA recent paper by Jeff Mitchell and others has highlighted the work done on reducing soil tillage which accelerates soil organic matter decline, resulting in a variety of ills from ground water contamination, poor soil…
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