Topics in Subtropics

Plant Growth Regulators: General Information Plant growth regulators are registered for use on California citrus toincrease fruit set.increase fruit size, either directly or indirectly by thinning (removing) fruit to increase the size of the remaining fruit.prevent fruit senescence.control preharvest…

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…

Bats provide natural insect pest control to California’s agriculture and urban areas. While multiple studies have been conducted on what bats eat in other parts of the United States there is lacking research on what time of the year bats provide the most pest control services. Additionally, of the research…

A recent study published in the Journal of Economic Entomology evaluated the use of insecticide-infused hydrogel baits for managing European earwig in California citrus orchards. The work, titled “Efficacy of insecticide-infused hydrogel baits in managing European earwig in citrus” , represents one of the…