Trinity County Cooperative Extension
University of California
Trinity County Cooperative Extension

Posts Tagged: walnut twig beetle

A One-Two Punch

Tiny walnut twig beetle

When you look at the tiny unassuming walnut twig beetle--it's smaller than a grain of rice--you wonder how it could possibily kill a majestic black walnut tree. By itself, it can't.  But when it's associated with a...

Tiny walnut twig beetle
Tiny walnut twig beetle

WALNUT TWIG BEETLE is smaller than a grain of rice. (Photo by Kathy Keatley Garvey)

Death and destruction
Death and destruction

DYING walnut trees in Davis, Calif., the result of "The Thousand Cankers Disease," caused by a tiny walnut twig beetle in association with an unknown fungus in the genus Geosmithia. (Photo by Steve Seybold)

Posted on Thursday, July 2, 2009 at 6:16 PM

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