UC Master Gardeners, Santa Clara County, CA
University of California
UC Master Gardeners, Santa Clara County, CA

Posts Tagged: dieback

Invasive Shothole Borers Threaten California’s Urban Forests

When tiny tree-killing beetles first arrived in Southern California several years ago and began...

Fig 1 Adult female of Polyhagous shot hole borer
Fig 1 Adult female of Polyhagous shot hole borer

Fig 2 Beetle entry hole on an avocado branch
Fig 2 Beetle entry hole on an avocado branch

Fig 3 a close up picture of broken branch of red willow tree in OC parks
Fig 3 a close up picture of broken branch of red willow tree in OC parks

Posted on Friday, July 15, 2022 at 4:43 PM
Tags: dieback (6), Fusarium (6), ISHB (3), Nobua-Behrmann (3), shot hole (4)
Focus Area Tags: Pest Management

Invasive Spotlight: Shot Hole Borers

Small beetles are causing big problems in Southern California. Two closely related species, the...

Posted on Saturday, June 13, 2020 at 9:00 AM
Tags: beetle (14), dieback (6), fusarium (6), invasive (55), invasive species week (8), ISHB (3), pest (141), polyphagous (5), PSHB (4), shot hole (4), tree (22), UC IPM (340)
Focus Area Tags: Environment, Natural Resources, Pest Management, Yard & Garden

Managing Invasive Shot Hole Borers in Southern California

[Originally published in the Fall 2018 issue of the Green Bulletin. Modified slightly from...

Posted on Wednesday, October 24, 2018 at 10:00 AM
Tags: beetle (14), dieback (6), Dimson (2), Fusarium (6), invasive (55), IPM (81), ISHB (3), Nobua-Behrmann (3), pest (141), polyphagous (5), PSHB (4), shot hole (4), tree (22), UC IPM (340)
Focus Area Tags: Pest Management

Invasive Spotlight: Shot Hole Borers and the Diseases They Carry

Shot hole borers are tiny insects the size of a sesame seed that don't look particularly harmful,...

Poster
Poster

Posted on Thursday, June 7, 2018 at 10:00 PM
Tags: borer (4), buy it where you burn it (1), dieback (6), disease (52), firewood (7), fungi (10), invasive species (11), Kuroshio (2), polyphagous shot hole (1), trees (17), UC IPM (340)
Focus Area Tags: Pest Management, Yard & Garden

Fruit Tree Monitoring for Pests

Stone fruit trees like apricot, cherry, nectarine, peach, plum, and prune are a staple of many...

Posted on Monday, May 7, 2018 at 1:43 PM
Tags: apricot (0), brown rot (0), cherry (0), eutypa dieback (0), monitor (0), nectarine (0), peach (0), peach leaf curl (0), pest (0), plum (0), prune (0), shot hole disease (0), spotted wing drosophila (0), UC IPM (0)
Focus Area Tags: Pest Management, Yard & Garden

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