Pest Management & Plant Health

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Two rat traps secured to a tree limb using a piece of wood and tape

Your Rat Management Questions Answered!

January 14, 2025
By Lauren Fordyce, Niamh M Quinn
UC IPM recently hosted a webinar on rat management presented by Dr. Niamh Quinn. During this webinar attendees were able to ask the expert their burning questions about rats and their management. Below are responses to common questions from the webinar.
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UC Weed Science (weed control, management, ecology, and minutia): Article

WeedCUT (Weed Control User Tool) expands!

January 8, 2025
By Thomas J Getts
Back in 2021 the California Invasive Plant Council (CAL IPC) and UC IPM launched the online decision support tool WeedCUT for wildland weed mangers to help assist making management decisions for wildland weeds.
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UC Cooperative Extension apiculturist Eric Mussen (1944-2022) of the UC Davis Department of Entomology and Nematology, at the Harry H. Laidlaw Jr. Honey Bee Research Facility apiary. Image taken in 2010. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

2024: Revisiting 'The 13 Bugs of Christmas'

December 24, 2024
By Kathy Keatley Garvey
Back in 2010, UC Cooperative Extension apiculturist Eric Mussen (1944-2022) of the UC Davis Department of Entomology and Nematology, and yours truly, department communications specialist, wondered why no insects appear in "The Twelve Days of Christmas." Zero. Zilch. Nada.
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Wrapping Up the Year

December 20, 2024
By Karey Windbiel-Rojas
As the end of 2024 approaches, I'd like to reflect on the UC IPM Urban and Community program's accomplishments and share what's to come from us in 2025.
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Various grains stored in glass jars.
Pests in the Urban Landscape: Article

Bugs in Your Holiday Cookies!?

December 16, 2024
By Lauren Fordyce
In a recent TikTok video, a woman's holiday baking spree came to a halt when she discovered bugs in her flour. While initially alarmed, the woman was also intrigued.
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ISHB News: Article

A new shothole borer species arrives in California

December 10, 2024
By Randall Oliver
The most recent discovery of invasive shothole borer-pathogen complex in Santa Cruz County has been identified as a different species of beetle and symbiotic fungi than the two complexes previously known in California.
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A honey bee heading toward almond blossoms. Managed bees such as bumble bees and honey bees are used to transfer a powder form of a biological control agent from flower to flower. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

UC Davis Apiculturist: Apivectoring Defined

December 6, 2024
By Kathy Keatley Garvey
Do you know what apivectoring is? Bee scientist Elina Lastro Nio, associate professor of Cooperative Extension, Apiculture, and a member of the UC Davis Department of Entomology and Nematology (ENT) faculty, defines it in a recent edition of Bee Culture.
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A honey bee today (Dec. 5) forms the centerpiece of a mallow, Anisodontea sp. "Strybing Beauty." (Photo by Kathy Keatley Garvey)
Bug Squad: Article

U.S. Honey Bee Losses Highest Since 2010-11

December 5, 2024
By Kathy Keatley Garvey
The American Bee Journal (ABJ) and Bee Culture just released the preliminary results of the annual U.S. Beekeeping Survey and the news is not good. "U.S. beekeepers lost an estimated 55.1 percent of their managed bee colonies in 2023-24--14.
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Pest management to-dos for December.

December Pest Tips

December 4, 2024
By Lauren Fordyce
Take the following steps to keep your plants healthy and pest-free this winter. Refer to the UC IPM Seasonal Landscape IPM Checklist for more monthly pest management to-dos for your region so you can prevent pests and their damage in the garden and landscape.
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