Topics in Subtropics

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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.
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cover cropped citrus

Soil Conservation Practices and Cover Cropping

August 11, 2025
By Ben A Faber
Reducing Tillage On-Farm and Cover Cropping in the US and California and Some LimitationsA recent paper by Jeff Mitchell and others has highlighted the work done on reducing soil tillage which accelerates soil organic matter decline, resulting in a variety of ills from ground water contamination, poor soil…
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false chinch bug adult

False Chinch Bugs Show Up when Hills Dry Up

August 11, 2025
By Ben A Faber
False Chinch Bug Shows Up as Hills Dry UpThe false chinch bug (FCB), Nysius raphanus (Hemiptera: Lygaeidae), is a pest of many plants. FCB is a generalist and has been found to be a problem in many cropping systems such as soybeans, quinoa, tobacco, cotton, broccoli and other Brassicaceae plants. FCB adults …
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Stink Bug on Avocado

Stink Bug in Avocado

August 6, 2025
By Ben A Faber, Jhalendra P Rijal
In the last month there have been sightings of a stink bug on avocado fruit and stems in the Santa Paula/Fillmore area. The bug feeds on the stems of mature fruit, causing damage to the stem, creating wounds that leak white sugar exudate on the stem that drips on to the fruit. The weakened stem, can’t hold…
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Citrus Mealy Bug Round Table

August 4, 2025
By Ben A Faber
Come hear the latest biology and control of Citrus Mealy Bug at the Association of Applied IPM Ecologists Meeting August 18, Santa PaulaAAIE's Ventura Avocado and Coastal Citrus Round Table Meeting. 3.0 DPR CEU's Approved  4.0 CCA CEU's Approved Date: Aug 18th, 2025Time: 8:30 AM - 1…
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Water, Fire and Funding Avocado Workshop

August 1, 2025
By Ben A Faber
August 21 (9 AM - 11 AM)Avocado Growing Resilience
Fire Recovery, RCD Support & Water Security SolutionsIn-Field at Greenwood Daylily GardensTopics and SpeakersUnderstanding Fire Damage Recovery in the Avocado OrchardPresented by John Schoustra (Owner) and Ben Faber (UC Cooperative…
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