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The Japanese
Beetle is an imported pest and is not native. Adults have a metallic green
head and neck region, and reddish bronze wing covers with a row of white hair
tufts along the abdomen. There is a single generation in the Midwest. Japanese
beetle adults feed on corn leaves, tassels, silks. They are capable of
interfering with pollination, which may threaten yield potential. The
pollination problem is a concern in corn where silk clipping by beetles can
cause ears to be only partially pollinated. Threshold in corn would be the silks
clipped to within 1/2 inch of the husk. Most of the damage to corn should be
finished by the end of August.
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