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Japanese beetle grubs expected in Missouri

Japanese beetle grub worms have been seen throughout Missouri and are expected to emerge as adults by July 1st. Peak emergence is predicted to be during the first or second weeks of July.

Japanese beetles are nothing new to Missouri farmers. They’ve been damaging crops since the 1930’s. The beetles feed on green corn silks and tassels, soybean foliage, and the fruit and foliage of hundreds of flowers, shrubs, and trees.

Japanese beetles feeding on corn silks can disrupt corn pollination, leading to fewer ears with fewer kernels. They also feed on soybean foliage leaving plants damaged and reducing yield.