Pest Management & Plant Health

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Brendon Boudinot won the John Henry Comstock Award. (Photo by Jill Oberski)

Four UC Davis Entomologists Win Prestigious Awards from PBESA

March 8, 2019
By Kathy Keatley Garvey
The UC Davis Department of Entomology and Nematology won four major awards from the Pacific Branch, Entomological Society of America (PBESA), which encompasses 11 Western U.S. states, plus several U.S. territories and parts of Canada and Mexico.
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Alkali weed

Alkaliweed distribution survey. Your help is needed!

March 8, 2019
NOTE: A graduate student at CSU Fresno is looking to describe the geographic distribution of alkaliweed in California. Please see the end of the article for a link to a QUICK survey describing where YOU have encountered this species.
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Various life stages of Oriental cockroach. (Jack Kelly Clark)

Pest Proof Your Home

March 5, 2019
By Anne E Schellman
Just like humans, pests need food, water, and shelter to live. Unfortunately, we may unknowingly attract and even invite them to live in and around our homes! Pest Attractors and Supporters Some pests prefer to live outdoors, while others like the ambiance inside your garage or home.
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Potato aphid adults and nymphs. Photo Jack Kelly Clark, UC IPM.
From Soil to Science: Article

ID that pest in your vineyard, orchard, garden

March 5, 2019
By Lucia G Varela
Want to know what bug is making holes in the leaves of you shrub or eating your fruit? Or what is the pesky weed you cannot get rid off? The University of California Division of Agriculture and Natural Resources publications have four sets of Pest Identification cards for you.
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Extension apiculturist Elina Lastro Niño (center) leads a beekeeping class at the Laidlaw facility. (Photo by Kathy Keatley Garvey)
Entomology & Nematology News: Article

Two UC Davis Beekeeping Classes Scheduled

March 1, 2019
By Kathy Keatley Garvey
Want to learn how to keep bees? The University of California, Davis, is offering two classes in mid-March: the first on Saturday, March 23 and the second on Sunday, March 24.
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Up close image of a green citrus leaf with serpentine tunnel damage caused by feeding of a citrus leafminer larva, shown at the top of the leaf.

Citrus Leafminer

February 28, 2019
[This post has been modified from the article originally published in the Fall 2018 issue of the Retail Nursery and Garden Center IPM News.] Citrus leafminer is a moth that arrived in California in 2000 and has invaded citrus throughout the state.
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Several small white clusters of mealybug colonies feed on citrus leaves.

What Are Those Big White Bugs on Citrus Trees?

February 28, 2019
[This post has been modified from the article originally published in the Fall 2018 issue of the Retail Nursery and Garden Center IPM News.] As a home gardener, you may find big white bugs clinging to the twigs and leaves of your citrus trees and need help with identifying and managing these pests.
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Three brown mottled Asian citrus psyllid adults feed on young citrus leaves alongside their tiny, yellow orange eggs.

Asian Citrus Psyllid

February 28, 2019
[This post has been modified from the article originally published in the Fall 2018 issue of the Retail Nursery and Garden Center IPM News.] The Asian citrus psyllid, Diaphorina citri, is a tiny, mottled brown insect about the size of an aphid (Figure 1).
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Up close image of a reddish black ant harvesting honeydew from an orange colored Asian citrus psyllid nymphs. A cluster of Asian citrus psyllid nymphs and their waxy honeydew are clustered in the foreground.
Pests in the Urban Landscape: Article

Ant Control for Insect Pests on Citrus

February 28, 2019
[This post has been modified from the article originally published in the Fall 2018 issue of the Retail Nursery and Garden Center IPM News.] Most citrus tree problems in home gardens can be solved by pruning the trees to allow better air flow and by controlling ants.
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