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.
kaolin spray for sunburn protection

Orchard Heat Manipulation

July 28, 2026
By Ben A Faber
Heatwaves above 95 °F are showing up more often in citrus and avocado growing areas, pushing fruit surface temperatures to the point of damage along with damage to leaves and the canopy. Sunburn is no longer a rare problem: in avocado, for example, repeated hot, clear days can quickly lead to severe…
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soil

Ventura Soil Health Conference

July 28, 2026
By Ben A Faber
We invite researchers, industry professionals, educators, students, and practitioners to submit proposals for oral and poster presentations that advance the science and application of biofumigation and sustainable soil health.
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