Tiny trouble for walnut trees?

walnut twig beetles for GBThe Ohio Department of Agriculture last week announced more detections of the walnut twig beetle in Butler County in southwest Ohio. The tiny insect, some 10 of which are shown here fitting easily on a penny, carries a fungus that causes deadly thousand cankers disease (pdf) in walnut trees, although at this point the disease itself hasn’t been found in the county. If you’re a reporter or a blogger, get a list of CFAES experts you can talk to here. If you’re a gardener, a forest owner, or are otherwise interested, get details on getting a free wallet-size walnut twig beetle ID card here. (Photo: Whitney Cranshaw, Colorado State University, Bugwood.org.)

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