Topics in Subtropics

The California Department of Food and Agriculture (CDFA) declared a citrus quarantine expansion in San Diego County’s Valley Center on March 26. The expansion occurred after detection of HLB disease in two citrus trees in residential neighborhoods in the Valley Center area during regular inspections.  …

On June 17, the University of California Cooperative Extension Agriculture and Natural Resources department is hosting a comprehensive Avocado Irrigation Workshop from 1:00 – 4:00 p.m. The seminar will take place at the San Diego Farm Bureau located at 420 South Broadway, Escondido, CA.The three-hour…

With the drought our perpetual salt problems are exacerbated due to less water and often more saline water.  The question keeps coming up if gypsum (calcium sulfate) can help correct the problem.  And the answer is maybe, but along the coast, probably not.  The problem there is confusion about…

Usually called Calcareous? Or should it be called Carbonateceous soils?  Is Gypsum Needed for a carbonate dominated soil  Read on.Soil pH or the “acidity” or lack of acidity of a soil can be confused by the different uses and chemistries that surround the term pH, or the power of hydrogen. This can…

California Avocado Growers Seminars Series 2025 Our Next SeminarApril 16 (1 -3 PM)  Water Knowledge isPower KnowledgeIn-Person and Zoom Topics and Speakers Sources of ET information and their ReliabilityBy Ali Montazar - UCCE Irrigation Advisor, Imperial/San Diego/ Riverside counties…