Agriculture

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Milkweed aphids on narrowleaf milkweed. Credit: Annemiek Schilder
UC Cooperative Extension, Ventura County: Article

Amazing aphids: strength in numbers

May 15, 2020
By Annemiek M Schilder
During a recent stroll through the Master Gardener Demonstration garden at the Hansen Agricultural Research and Extension Center, a narrow-leaf milkweed plant with stems and leaves covered in yellow caught my eye.
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lemon tree vigorous growth
Topics in Subtropics: Article

Ventura Lemons in the News

May 15, 2020
By Ben A Faber
From: Citrus Industry, http://citrusindustry.net/2020/05/14/lemons-hit-hard-by-covid-19-losses/ May 14, 2020California Corner, COVID-19, lemons Lemon growers are seeing good production this year, but the market for choice lemons has been ruined by COVID-19 food-service industry losses.
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dye distribution in citrus trunks fig 1
Topics in Subtropics: Article

How to Inject Citrus Trees

May 14, 2020
By Ben A Faber
An Automated Delivery System for Therapeutic Materials to Treat HLB Infected Citrus Ozgur Batuman1 and Louise Ferguson2 Southwest Florida Research and Education Center, University of Florida, Immokalee, FL; 2UC Davis, Department of Plant Sciences, University of California Davis, Davis CA Why is this...
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This is the Asian giant hornet, Vespa mandarinia, that was detected and destroyed on Vancouver Island, British Columbia, in September 2019. (Photo courtesy of the Washington State Department of Agriculture)

Bohart Museum Virtual Open House: Got a Question About Wasps?

May 14, 2020
By Kathy Keatley Garvey
Do you have a question about wasps? Lynn Kimsey, director of the Bohart Museum of Entomology and UC Davis professor of entomology, will answer questions from 11 a.m. to 11:45 a.m., on Friday, May 22 at the Bohart's first-ever virtual open house on FacebookLive.
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dry root rot time
Topics in Subtropics: Article

Bam - Dry Root Rot Season

May 13, 2020
By Ben A Faber
The calls have come in. We've gone from cool to hot and Dry Root Rot of Lemon has struck, It's shocking how fast the trees go down. Dry Root Rot has menaced growers in Ventura County for many years. In the 50's and 60's it seemed most prevalent on older orange trees.
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asphyxaited trees with whitewash
Topics in Subtropics: Article

Too Much Rain?

May 13, 2020
By Ben A Faber
What Can Happen With Too Much Rain? Rain is wonderful stuff. If it comes and washes the accumulated salts of the last several years out of the root zones of citrus and avocado, that's a good thing.
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