Posts Tagged: UC IPM Statewide Integrated Pest Management Program

Jackson Audley: A Case Study with the Walnut Twig Beetle

So tiny and so destructive. It's about the size of a grain of rice but it's a killer. That's the walnut twig beetle, Pityophthorus juglandis, which...

The walnut twig beetle is about the size of a grain of rice. (Photo by Kathy Keatley Garvey)

The walnut twig beetle is about the size of a grain of rice. (Photo by Kathy Keatley Garvey)

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