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  • Tis the Season for Japanese Beetles

    Posted on July 5, 2016

    The Japanese Beetles are here!  Gardeners are reporting that they are starting to see these shiny, metallic green beetles in their gardens in southeast Wisconsin. These beetles, that measure slightly less than ½ inches and have coppery-brown wing covers, are a major pest of over 350 plant species. 

    Japanese beetle adults do not damage lawns, but can cause damage on the foliage and fruits of many plants including fruits, vegetables, ornamentals, field and forage crops, and weeds.  Norway and Japanese maple, birch, crabapple, purple-leaf plum, rose, mountain ash, and linden are highly preferred.  Adults feed on the upper surface of the foliage of most plants, consuming the soft tissues between the leaf veins, and leaving a lace-like skeleton.  

    Control options are available for the different life stages of the Japanese Beetles.  For more information and control options, see http://hort.uwex.edu/articles/japanese-beetle.

     Article Japanese Beetle

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