(WEST LAFAYETTE, IN) - Many Indiana residents have noticed swarms of tiny insects in their yards, parks and gardens this year.
The annoying bugs are not gnats, they're soybean aphids.
Their numbers area increased this season because their population grew late and were not treated with insecticides.
Purdue University professor Christian Krupke says the aphids spend the summer on the soybeans and then in the fall moved to a common roadside shrub called Buckthorn.
Krupke says the bugs are not harmful to humans or any other plants besides soybeans. He says their numbers will dwindle by the end of the month.
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