Pest Management & Plant Health

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Assorted elm leaf beetles and larvae. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

These Beetles Don't Want to Hold Your Hand

July 29, 2021
By Kathy Keatley Garvey
The Beatles sang "I Want to Hold Your Hand." The elm leaf beetles and their larvae don't want to hold your hand--unless perhaps you're holding a elm leaf that they can eat. A recent walk down the 200 block of Buck Avenue, Vacaville, California, revealed the damage this pest does.
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nematodes4
Garden News & Views: Article

Nematodes

July 29, 2021
Telltale Roots: Secrets From the Underground As a newbie Master Gardener (class of 2020), I am constantly reminded of how much I don't know and how much more I need to learn. I also find myself looking at my garden in a very different way.
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Figure 1. On farm study evaluating under-vine cultivator in Turner, OR in the spring of 2021.
UC Weed Science (weed control, management, ecology, and minutia): Article

Mechanical Weed Control under the Vine

July 22, 2021
By Gale Perez
From the Weeders of the West blog 07/14/2021 Vineyard floor management can be divided into two areas, the area under the vine and the area between the rows. Cover crops are often planted between the rows and mowed as needed during the season.
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UC Cooperative Extension apiculturist Elina Lastro Niño showing a frame at the Harry H. Laidlaw Jr. Honey Bee Research Facility to students. (Photo by Kathy Keatley Garvey)
Entomology & Nematology News: Article

Extension Apiculturist Elina Lastro Niño Achieves Promotion

July 19, 2021
By Kathy Keatley Garvey
UC Cooperative Extension apiculturist Elina Lastro Nio, a honey bee scientist and educator who serves all of California and is a member of the UC Davis Department of Entomology and Nematology faculty, was recently promoted to associate specialist, effective July 1.
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Dr. Kari Arnold.
The Stanislaus Sprout: Article

Submitting Samples to the Master Gardener Help Desk

July 19, 2021
By Anne E Schellman
If you have a gardening question about a plant with concerning symptoms, you can submit details and photos using our Ask a Master Gardener Survey. But what if we can't tell what's wrong from your photos? If this is the case, we may ask you to drop off a sample to our office.
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Plant Risk Evaluator (PRE)TM – PlantRight
UC Weed Science (weed control, management, ecology, and minutia): Article

Assessing the potential invasion risk of ornamental plants

July 14, 2021
By Gale Perez
Marie Jasieniuk is a professor with the Dept. of Plant Sciences at UC Davis. A major pathway of introduction of non-native invasive plants into new geographical areas is the global horticultural trade in ornamental plants.
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Horn/nose development on tomato fruit (Credit: N Volesky)
Pests in the Urban Landscape: Article

Abiotic Problems of Tomato

July 11, 2021
Originally published in the Summer 2021 issue of Utah Pest News. Many problems that gardeners experience with tomato plants are not related to insect pests or diseases. Rather, they are associated with adverse growing conditions due to the environment or production practices.
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3 bright green poison oak leaflets on a stem with other leaves in the backgroun.
Pests in the Urban Landscape: Article

Poison Oak Resource Updated

July 8, 2021
By Belinda Messenger-Sikes
Poison oak is a common native plant in California, growing everywhere from oak woodlands to urban parks. Chances are, you or someone you know has suffered from a rash due to poison oak at some point. The best way to avoid exposure to poison oak is knowing how to identify it.
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