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.

HLB-Infected Asian Citrus Psyllids Found in Central Coast

March 18, 2026
By Ben A Faber
Two CLas+ ACP Detections Confirmed in Central CoastTwo adult Asian citrus psyllid (ACP) samples have been confirmed positive for Candidatus Liberibacter asiaticus (CLas), the bacteria that causes the deadly plant disease Huanglongbing (HLB), in two central coastal counties this month. An ACP sample collected…
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Avocado Lace Bug adults and nymphs

Avocado Lace Bug Workshop

March 17, 2026
By Ben A Faber
Avocado Lace Bug also known as the camphor lace bug, its only known hosts are various Persea species and the camphor tree (Cinnamomum camphora), which is grown as a landscape ornamental and commercially for its aromatic extracts.Lace bugs do not feed on fruit. Adults and nymphs feed in groups on the…
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Asian Citrus Psyllid Survey

March 16, 2026
By Bodil N Cass
UC ANR Asian Citrus Psyllid Distribution & Management Website Evaluation SurveyWe are currently updating the UC ANR Asian Citrus Psyllid Distribution and Management Website, available here to review before this survey: https://ucanr.edu/site/asian-citrus-psyllid-distribution-and-management …
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Pollinator Plantings Workshop

March 16, 2026
By Ben A Faber
Lockeford Plant Materials CenterSpring Field DayFocus on Pollinator PlantingsApril 15, 2026 – 9:30 - 12pm Location: Lockeford PMC, 21001 N. Elliott Rd., Lockeford, CA 95237A Trip to the…
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