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May 2025Archived
Field picture submitted by Elizabeth Fichtner

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Crab spider with its kill, a cabbage white butterly. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

A Bad Day for a Butterfly

July 1, 2013
By Kathy Keatley Garvey
It was a bad day for a butterfly. We stopped by the Ruth Risdon Storer Garden, part of the UC Davis Arboretum, at noon today as triple-digit temperatures climbed to a scorching 103.
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UC Weed Science (weed control, management, ecology, and minutia): Article

Herbicides and Volatile Organic Compounds

July 1, 2013
By Cheryl A Reynolds
Its that time of year again when hot weather fuels the creation of ozone, or smog. Some herbicides emit volatile organic compounds (VOCs) that contribute to ozone formation. Using herbicides that release VOCs may be restricted in certain California locations between May 1 and October 31.
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Cooperative Extension Ventura County: Article

July/Aug. 2013 Cloverlines

June 30, 2013
In this issue... 100 Blankets Project, Youth Building Incentives, Cross Clubbing, 4-H Centennial Celebrations, Enrollments, and much more.
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Bee fly, a bombyliid, hovers like a helicopter. Note the long tongue. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

A Bee Fly!

June 28, 2013
By Kathy Keatley Garvey
Have you ever seen a bee fly, a member of the family Bombylidae? It's about the size of some bees. It buzzes like a bee. But you can quickly tell it's not a bee by its behavior.
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air quality button

Pesticides and Volatile Organic Compounds

June 28, 2013
By Tunyalee Martin
Its that time of year again when hot weather fuels the creation of ozone, or smog. Some pesticides emit volatile organic compounds (VOCs) that contribute to ozone formation. Using pesticides that release VOCs may be restricted in certain California locations between May 1 and October 31.
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smog
Topics in Subtropics: Article

Volatile Organic Compounds

June 28, 2013
By Ben A Faber
Its that time of year again when hot weather fuels the creation of ozone, or smog. Some pesticides emit volatile organic compounds (VOCs) that contribute to ozone formation. Using pesticides that release VOCs may be restricted in certain California locations between May 1 and October 31.
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Dothiorella branch dieback

The state of Dothiorella canker on avocado in California

June 28, 2013
By Ben A Faber
Branch and trunk canker on avocado was formerly attributed to Dothiorella gregaria, hence the name Dothiorella canker. So far Botryopshaeria dothidea (anamorph: Fusicoccum aesculi) is the only known species causing Dothiorella canker on avocado in California.
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Mud dauber wasp, Sceliphron caementarium. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

Now That's a Wasp Waist!

June 27, 2013
By Kathy Keatley Garvey
You've heard the expression, "wasp waist," in reference to someone's tiny waist? Well, all you need do is look at the waist of the mud dauber wasp, Sceliphron caementarium, and you'll see where that expression originated.
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