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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avocado frosted flower

Just a Little Bit of Frost Damage

March 16, 2022
By Ben A Faber
Calls have come in - "What is the browning on the avocado leaves? Thrips damage? Salt damage? Dothiorella?" Nope, Frost Damage. From the end of February to the first week of March, Santa Paula had one night of 30 deg F, and 3 nights of 33 and a few nights around 35..
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citrus and mountains

Reading Up on Citrus ACP and HLB

March 14, 2022
By Ben A Faber
Translating the science of managing HLB Your resource for learning about existing and new tools being developed by researchers to protect and manage citrus from the causative agent of huanglongbing (HLB).
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hlb infection

Citrus Has an Immune Response to HLB

March 11, 2022
LAKE ALFRED, Fla. Sometimes in science, a new perspective brings an a ha! moment. That's what one senior researcher at the University of Florida Institute of Food and Agricultural Sciences believes happened with his latest research on Huanglongbing (HLB), or citrus greening.
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HLB symptoms

Getting into the Weeds of Citrus HLB

March 9, 2022
By Ben A Faber
New Candidatus Liberibacter' Pathosystems Focus Issue from APS (American Phytopathological Society) Read the great review of the bacteria that causes Citrus Huanglongbing and then the abstracts of the articles in this edition of Phytopathology.
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