Pest Management & Plant Health

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This is a gallery of bark beetles. A seminar on forest beetles will be among the seminars hosted by the UC Davis Department of Entomology and Nematology. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

UC Davis ENT Seminars: From Bark Beetles to Meat-Eating Bees

January 4, 2023
By Kathy Keatley Garvey
From bark beetles to meat-eating bees! And from UC Davis to France... Seminar coordinator Emily Meineke, urban landscape entomologist and assistant professor, UC Davis Department of Entomology and Nematology, has announced the list of the department's 10 winter seminars, which begin Jan.
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Close-up of bark beetle galleries. Research entomologist Chris Fettig of the U. S. Forest Service will speak on "Bark Beetles: How Tiny Insects Are Transforming Western Forests with a Little Help from Climate Change" at 4:10 p.m., Wednesday, Feb. 1 in Room 122 of Briggs Hall. (Photo by Kathy Keatley Garvey)
Entomology & Nematology News: Article

Department's Winter Seminars: From Bark Beetles to Bees and More

January 4, 2023
By Kathy Keatley Garvey
Seminar coordinator Emily Meineke, urban landscape entomologist and assistant professor, UC Davis Department of Entomology and Nematology, has announced the list of the department's 10 winter seminars, which begin Jan. 11 and continue through March 15.
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This is the tick buried in the skin of Winters' resident Joe Nazarius. It's black-legged nymph tick, Ixodes pacificus, as identified by Lynn Kimsey, director of the Bohart Museum of Entomology and a UC Davis distinguished professor of entomology. (Photo by Debra LoGuercio DeAngelo)
Bug Squad: Article

It Started Out as a Quiet, End-of-the-Year Hike Near Lake Berryessa...

January 2, 2023
By Kathy Keatley Garvey
It was a good day for a hike. So Joe Nazarius of Winters embarked on a Dec. 30th hike in the Knoxville Road area, west of Lake Berryessa, when the unexpected happened. "What is this bug buried in Joe's skin?" That's what his wife, Debra LoGuercio DeAngelo, messaged me. She attached a photo.
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Praying mantis: "I'm hungry! What's to eat?" (Photo by Kathy Keatley Garvey)
Bug Squad: Article

To Catch a Cabbage White...On a Wing and a Prayer

December 28, 2022
By Kathy Keatley Garvey
To catch a cabbage white butterfly... It was early October and a gravid praying mantis, almost ready to deposit her ootheca, was hungry. She crawled behind a cactus in our yard, waiting for prey. It did not take long.
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The five gold rings became five golden bees. Here's one of the golden bees, a Cordovan, a subspecies of the Italian. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

Revisiting 'The 13 Bugs of Christmas'

December 23, 2022
By Kathy Keatley Garvey
This Christmas season isn't the same without University of California Cooperative Extension apiculturist emeritis Eric Mussen, who died June 3 of liver cancer at his home in Davis. Mussen (1944-2022) was an institution. He was a global authority of honey bees. He was family to everyone.
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A Western yellowjacket, Vespula pensylvanica, and a honey bee, Apis mellifera) sharing a rose in Davis, Calif. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

The Wonderful World of Wasps

December 21, 2022
By Kathy Keatley Garvey
"Wasps are terrible. They come jam-packed full of pain and anger, and they love to sting us out of the blue while we're minding our own business. They eat our food at picnics and frighten our children. They even build nests in our gardens and homes, just to complicate our already-stressful lives.
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Figure 1. Close-up of the finger weeder mechanism.
UC Weed Science (weed control, management, ecology, and minutia): Article

Evaluation of automated and mechanical cultivators to control within-row weeds in conventional processing tomatoes

December 18, 2022
By Gale Perez
Conventional processing tomato weed management in California often includes pre-plant herbicides (trifluralin and/or s-metolachlor), followed by cultivation, and hand hoeing. Rimsulfuron herbicide can also be used in conventional systems and can be applied either pre or post transplanting.
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