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.

Temperature inversion data helps guide frost responses

November 13, 2023

Coastal California crops include many which are sensitive to frost, including grapes, strawberries, avocado and citrus.

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Resistant Arthropods?

November 8, 2023

Utilizing the Arthropod Pesticide Resistance Database Growers face the daunting challenge of managing several pests that exhibit pesticide resistance. In this battle, selecting appropriate pesticides play a crucial role.

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Managing Nitrogen Organically

November 6, 2023

By Ben A Faber

Practical Training in Nitrogen Planning & Management in Organic Production of Annual Crops BUT All Growers Could Learn from these sessions - Virtual Event Habr traduccin al Espaol 3-part Workshop Session 1: Monday, Nov. 27th, 2023, 1-3pm Session 2: Monday, Dec.

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Mulch and TOO Much Rain

November 3, 2023

By Ben A Faber

What Can Happen With Too Much Rain? Watch that Mulch!!! Rain is wonderful stuff. If it comes and washes the accumulated salts of the last several years out of the root zones of citrus and avocado, that's a good thing.

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Phytophthora Diseases of CA Citrus

November 3, 2023

There are at least four species of Phytophthora species (P. citrophthora, P. parasitica, P. syringae, and P. hibernalis) associated with citrus in California and all species can cause various symptoms in citrus including the three main diseases' associated with Phytophthora spp.

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