The U.C. Cooperative Extension Farm Advisors have combined to publish this quarterly combined newsletter. It will emphasize citrus and avocado, but will also discuss the minor subtropicals.
Topics in Subtropics Winter 2026
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TOPICS IN THIS ISSUE
- Irrigation Practices and Water Management in Avocados
- Asphyxiation
- Cellulase Activity in Mulches
- Guava Pest Alert
- Putting Bees to Work to ID Sunblotch
- Field Trial Results You Can Use: Citrus Thrips Insecticide Research
- And three great workshops coming up
Cooperative Extension Ventura County
Topics in Subtropics Summer 2025
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TOPICS IN THIS ISSUE
• The Role of Pollinators in Avocado Production
• Is that a Fruit Fly?
• Sivanto Labeled for Control of Pink Hibiscus Mealybug in Dates
• Consperse Stink Bug
• Insights on 2025 Honey Bee Losses
• Upcoming Meetings
Cooperative Extension Ventura County
Topics in Subtropics Volume 25 Winter 2024
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Sandipa Gautam, Editor
In this issue:
- California inundated with invasive fruit flies
- Satellite-based irrigation tools to manage irrigation water more precisely in avocado groves
- Managing citrus mealybug – does ant control help?
- Phytoplasma Diseases of Palms in the USA
- Understanding fruit fly quarantines
- Cultivating Citrus Resilience to HLB in California
- Phenology and the Avocado
- The Annual California Avocado Society Meeting
- Pre-bloom foliar boron application on olive may improve yield
Cooperative Extension Ventura County
Topics in Subtropics Volume 24 Fall 2023
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In this issue:
- IRCHLB?
- Pocket Gopher Management
- Phytophthora Diseases of California Citrus
- Airblast Sprayers
- Temperature Inversion Data Helps Guide Frost Responses
- Bodil Cass – New Subtropical Fruit IPM Specialist
Cooperative Extension Ventura County