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.

Hope for citrus

April 10, 2012

Research to fight Huanglongbing (HLB), the deadly citrus disease carried by the Asian citrus psyllid, is taking place throughout our nation and the world. Industry-wide urgency is funding a variety of research in search of a solution.

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Steve Howerzyl in his high density avocado grove.

Avocado Farming with High-Priced Water. Can It Remain Profitable?

April 3, 2012

By Gary S Bender

Water prices in San Diego County continue to increase and there is no end in sight, especially with periodic drought years and California losing some share of its Colorado River water.

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Little evidence to support the use of foliar applied nutrients in avocado

March 26, 2012

Introduction Foliar fertiliser application is sometimes promoted as an effective means of supplying nutrients to avocado.

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UC Riverside Citrus Variety Collection

March 19, 2012

Since 1910, the Citrus Variety Collection has been a resource for research, citrus breeding and educational extension activities initially for the UC Citrus Experiment Station and now for the expanded College of Natural and Agricultural Sciences at UC Riverside.

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High levels of salts can accumulate in the soil with each irrigation.

One, One Hundred, One Thousand

March 5, 2012

This little mnemonic, or memory aid, in the title is helpful in remembering the critical levels of toxic constituents in irrigation water.

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