Pest Management & Plant Health

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Choe Laboratory News: Article

Farewell to Dr. Jia-Wei Tay!!

December 7, 2018
By Dong Hwan Choe
Our postdoctoral scholar, Dr. Jia-Wei Tay, has successfully completed her postoctoral research, and will be leaving the Choe laboratory. Dr. Tay has been working on a novel baiting system (i.e.
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Yellow and black mud dauber wasps are predators of spiders but harmless to people. Adults are about 1-inch in length with true wasp waists!
Green Blog: Article

Why mud daubers are on spider patrol

December 4, 2018
By Rachael Long
UC Cooperative Extension advisors are on the front line and get the most interesting questions from our community. Someone brought some wasps into our office, and was worried they were invading her home, and wondered how to get rid of them.
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The three-cornered alfalfa hopper, Spissistilus festinus. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

About That Three-Cornered Alfalfa Hopper...

December 4, 2018
By Kathy Keatley Garvey
It's green, it's tiny, and everyone is hoping it doesn't wreak any havoc in the vineyards. "It" is the three-cornered alfalfa hopper, Spissistilus festinus, a lear-winged, wedge-shaped (thus the name "three-cornered") insect that's about a quarter of an inch long.
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Poor control of Palmer amaranth can result in a significant infestation late in the season and crop failure. Photos by the late Dr. Ted Webster, Research Agronomist with USDA-ARS.
UC Weed Science (weed control, management, ecology, and minutia): Article

Field scouting guide: Palmer amaranth

December 4, 2018
By Gale Perez
From Growing Produce by Karli Petrovic | November 27, 2018 https://www.growingproduce.com/vegetables/field-scouting-guide-palmer-amaranth/ This month's field scouting guide concentrates on Amaranthus palmeri S. Watson (Palmer amaranth).
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Two Dermacentor occidentalis (Pacific Coast ticks) "collected" during a Sonoma outing: male on the left and female on right, as identified by Lynn Kimsey, director of the Bohart Museum of Entomology. They are about the size of a sesame seed. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

Those Amazing Ticks: And How Hungry Ticks Work Harder to Find You

November 29, 2018
By Kathy Keatley Garvey
They ticked me off. Ticks can do that to you. I never think about ticks during the holiday season, but a news release from the University of Cincinnati about how Hungry Ticks Work Harder to Find You piqued my interest--and memories of the day our family inadvertently collected a total of 14 ticks.
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Brown recluse spider. (Credit: Rick Vetter, UCR)

Brown Recluse

November 28, 2018
By Karey Windbiel-Rojas
No we aren't here to tell you we found one. Because brown recluse spiders do not live in California. Don't believe this last statement? Then please read the recently updated publication Pest Notes: Brown Recluse and Other Recluse Spiders by UC Riverside spider expert Richard S. Vetter.
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