Pest Management & Plant Health

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Robovator
Notes in the Margins: Agronomy and Weed Science Musings: Article

Save The Date! The 3rd Annual UAV/Ag Technology Field Day on July 15th

May 28, 2019
Mark your calendar! July 15, 2019 The 3rd Annual UAV/Ag Technology Field Day Presented by UC Cooperative Extension, Merced County 9am to 11:30am (CE registration begins at 8:30am) Bowles Farming Headquarters 11609 Hereford Road, Los Banos, CA 93635 Events: UAV/Drone demonstration flights: -CSU Fresn...
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Powdery Mildew on Rose
HOrT COCO-UC Master Gardener Program of Contra Costa: Article

Rose Disease: Powdery Mildew

May 27, 2019
Client Request: Could you help us with identifying the problem with our rose bushes. I used Bayer all in One Rose & Flower Care this Spring but it didn't do much good. What should we do? Thank You.
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Forest entomologists Steve Seybold (right) and Jackson Audley stand by a 150-year-old black walnut tree on the 100 block of E Street. It is dying of thousand cankers disease. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

A Sign of the Times: Why This Black Walnut Tree Is Dying

May 24, 2019
By Kathy Keatley Garvey
If you've ever walked into the courtyard on the 100 block of E Street in downtown Davis, Calif., you've probably noticed the massive black walnut tree near Sophia's Thai Bar and Kitchen. It's about 150 years old, 50 feet in height, and measures about five feet in diameter. And it's dying.
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Forest entomologists Steve Seybold and Jackson Audley, his doctoral student, stand at the base of a dying giant black walnut tree on the 100 block of E Street. (Photo by Kathy Keatley Garvey)
Entomology & Nematology News: Article

Walnut Twig Beetle and Fungus Has Caused 'Profound Damage' to Black Walnut Trees

May 23, 2019
By Kathy Keatley Garvey
The deadly thousand cankers disease, an emerging insect-fungus complex, has caused profound damage to black walnut trees not only in urban areas of California and other western states, but in Pennsylvania, Tennessee and Virginia, according to a newly published review by UC Davis-affiliated scientist...
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An immature lady beetle (larvae) chowing down on an oleander aphid. This photo was taken on a milkweed plant in Vacaville, Calif. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

Hey, I'm Eating as Fast as I Can!

May 22, 2019
By Kathy Keatley Garvey
Have you ever seen the larva of a lady beetle (aka ladybug) dining on an aphid? Lights! Camera! Action! So here is this charming little immature lady beetle chowing down on an oleander aphid that has the audacity to infest the milkweed in our pollinator garden.
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Brown recluse spider. Rick Vetter, UC Riverside)
The Stanislaus Sprout: Article

Brown Recluse Spiders? Not in California!

May 20, 2019
By Anne E Schellman
[Reblog from Pests in the Urban Landscape] If you were to ask an audience of more than a few people if they or anyone they know has ever seen or been bitten by a brown recluse spider in California, many hands would be raised.
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Adult brown recluse spider, <i>Loxosceles reclusa</i>. (Credit: R Vetter)
Pests in the Urban Landscape: Article

Brown Recluse Spiders? Not in California!

May 18, 2019
If you were to ask an audience of more than a few people if they or anyone they know has ever seen or been bitten by a brown recluse spider in California, many hands would be raised.
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Vegetable Pest Identification cards
Pests in the Urban Landscape: Article

Gardening books on sale!

May 18, 2019
By Karey Windbiel-Rojas
Spring is here and so are the pests. The University of California Agriculture and Natural Resources has the books that can help you learn about the insects, diseases, wildlife, and weeds that might be causing problems in your garden or landscape.
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