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.
Tamarixia

Tamarixia to Suppress ACP

April 22, 2026
By Ben A Faber
Biological control for sustained ACP suppressionVentura County supports ACP activity for much of the year due to mild climate, frequent flush, and a highly mixed landscape that includes commercial groves, organic production, and unmanaged citrus. Under these conditions, ACP populations persist and rebound…
View Article
rattlesnake ready to strike

Rattlesnake Season

April 17, 2026
By Ben A Faber
First, remember that the desire to avoid any kind of an interaction is mutual. Rattlesnakes are an important part of the ecosystem, feeding on rodents, birds, and other small animals.Snake season in Southern California runs from April through October, but the warmer the weather, the more the reptiles are…
View Article
avocado orchards

Topics in Subtropics - English/Spanish Versions

March 23, 2026
By Ana Maria Pastrana Leon
 Inveirno 2026TEMAS EN ESTA EDICIÓNPrácticas de riego y manejo del agua en aguacatesAsfixia radicularActividad de celulasa en acolchados contra enfermedades de PhytophthoraAlerta de plagas en guayabaPoniendo a…
View Article

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…
View Article
Subscribe