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| Japanese Beetle Grubs (Photo courtesy Department of Entomology, Purdue University) |
Japanese Beetle Adults (Photo courtesy Department of Entomology, Purdue University) |
Japanese Beetle Feeding Injury |
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In general, the wetter the spring, the higher the beetle mortality tends to be. Plants particularly at risk to Japanese beetle feeding include those that have recently been transplanted or those that are stressed for one reason or another. Japanese beetles do have their favorite foods as well. These include plants such as linden, crab apple, plum, and other fruit trees, rose bushes, grapes, and several garden variety vegetables. Physical (netting or picking off the beetles each day) or chemical controls will be required to save plants in some cases. For more information on Japanese beetles, please refer to E-75, Japanese Beetles in the Urban Landscape.
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Plant and Pest Digital Library and Digitally Assisted Diagnosis, Purdue University, West Lafayette, Indiana.