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Posts Tagged: tree

Reducing the Spread of Invasive Pests in Cut Wood

Figure 1. Firewood left behind from tree care operations can harbor pests. (Credit: Karey Windbiel-Rojas)

[Originally published in the Fall 2018 issue of the Green Bulletin. Modified slightly from original.] Invasive insects and diseases are threatening numerous tree species throughout the country. Impacts include tree mortality, destruction of forest and...

Posted on Tuesday, November 6, 2018 at 2:41 PM
Tags: arborist (1), borer (1), disease (5), firewood (2), invasive (3), pest (7), tree (15), UCIPM (1)
Focus Area Tags: Pest Management Yard & Garden

Managing Invasive Shot Hole Borers in Southern California

Figure 1. Polyphagous shot hole borer. (Credit: Akif Eskalen)

[Originally published in the Fall 2018 issue of the Green Bulletin. Modified slightly from original.] Invasive wood-boring beetles are attacking hundreds of thousands of trees in southern California, including commercial avocados, and trees within urban...

Posted on Wednesday, October 24, 2018 at 10:00 AM
Tags: beetle (2), dieback (1), Dimson (1), Fusarium (1), invasive (3), IPM (2), ISHB (1), Nobua-Behrmann (1), pest (7), polyphagous (1), PSHB (1), shot hole (1), tree (15), UC IPM (11)
Focus Area Tags: Pest Management

Asian Citrus Psyllid publication updated

Adult and nymphs of the Asian citrus psyllid. (Credit: Michael E. Rogers, University of Florida)

The Asian citrus psyllid is an insect that can carry a deadly tree disease called Huanglongbing or citrus greening. To help educate people about the seriousness of this disease, how it spreads, and how to deal with it, the UC IPM program has published an...

Adult and nymphs of the Asian citrus psyllid. (Credit: Michael E. Rogers, University of Florida)
Adult and nymphs of the Asian citrus psyllid. (Credit: Michael E. Rogers, University of Florida)

Adult and nymphs of the Asian citrus psyllid. (Credit: Michael E. Rogers, University of Florida)

PDF of ACP Pest Notes
PDF of ACP Pest Notes

PDF of ACP Pest Notes

Posted on Monday, October 22, 2018 at 8:52 PM
Tags: Asian citrus psylld (2), Daugherty (1), disease (5), Grafton-Cardwell (1), insect (1), IPM (2), pest (7), tree (15)
Focus Area Tags: Pest Management Yard & Garden

Don't Move Firewood!

Don't Move Firewood!

[From the Summer issue of the UC IPM Retail Nursery & Garden Center News] When you use firewood in the great outdoors, be aware that moving firewood can transport tree-killing insects and diseases. Find out more at the following...

Don't Move Firewood!
Don't Move Firewood!

Don't Move Firewood!

Posted on Thursday, August 23, 2018 at 10:00 PM
Tags: burn (1), California (1), exotic (1), firewood (2), invasive (3), oak mortality task force (1), pests (2), tree (15), UC IPM (11)
Focus Area Tags: Pest Management

Redhumped Caterpillar Publication Revised

Two redhumped caterpillar larvae on a plum branch. (Photo: Belinda Messenger-Sikes)

The redhumped caterpillar is a familiar pest on fruit and nut trees such as plum, almond, cherry, and apple, as well as on ornamental trees like liquidambar and birch. It can reach high populations in California's Central Valley, sometimes defoliating...

Posted on Tuesday, January 9, 2018 at 6:08 PM
Tags: defoliate (1), Dreistadt (1), pest (7), Pest Notes (2), redhumped caterpillar (1), Symmes (1), tree (15), UC IPM (11)
Focus Area Tags: Pest Management Yard & Garden

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