How to Deal with Japanese Beetles by Vijai Pandian (July 22, 2019)

By Vijai Pandian, UW Madison Extension and PJ Liesch, UW Madison Entomology

Adult Japanese Beetles on a rose.
Adult Japanese Beetles on a rose.

Established in Wisconsin in the 1990s, the Japanese beetle (Popillia japonica) is a voracious defoliator of many landscape and garden plants. Roses, birches, lindens, grapes, raspberries, Norway maples, beans, apples, plums, crabapples, elms, beech, asparagus, and rhubarb are some of its favorite plant species.

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