Topics in Subtropics

The 2025 Crop Reports for California counties are starting to come in.  These are the details of what happened last year. They are the closest data we have for what is "currently" going on with a county's agricultural activity, so it's not right up to the minute.  It's up to the year.  Here…

Tuesday, June 23, 2026, at 10:00 AM ON THE GROUND WITH CA-CRAFT California Citrus Research and Field Trials (CA-CRaFT) was started in 2023 to develop practical, field-based ACP management strategies under real commercial citrus conditions across California. Since then, the program has expanded into a large,…

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…

More than half of all California farmland now runs on drip or micro irrigation. That transformation is a genuine water efficiency win. But growers, advisors, and policymakers mostly missed a side effect: farm electricity use has not fallen. In many cases it has risen, and electricity rates have roughly…

In 2012, avocado growers were presented with the news that a newly discovered invasive beetle, named the polyphagous shot hole borer (Euwallacea fornicatus), could play havoc with production in Californian groves. Native to southeast Asia, the new arrival was a species of ambrosia beetle, a small weevil that…