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.
Blight on avocado.

Stem and Leaf Blight

June 15, 2012
In both avocado and citrus there can be a rapid collapse of tissue brought on by a host of related fungi.
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Dry Root Rot. Photo by Jack Kelly Clark.

Dry Root Rot of Citrus Orchards

May 16, 2012
Dry root rot has been a problem in citrus orchards for many years. Although generally a problem in coastal and northern California counties it has been reported in other citrus producing areas of the state.
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Vein clearing in Dweet Tangor.

Dweet Mottle Virus and Citrus Leaf Blotch Virus

May 7, 2012
The UC Riverside Citrus Variety Improvement Program (CVIP), the forerunner of the Citrus Clonal Protection Program (CCPP), began indexing candidate varieties in 1958. At that time, the full range of indicator plants that is utilized today was not known.
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