U.S. Distribution

The soybean aphid was first observed in North America in the summer of 2000. It was first seen in Wisconsin, and then spotted in Illinois, Indiana and Michigan. Since then, the soybean aphid has moved rapidly north and west.

Soybean aphid is believed to be a native of China, but its origin is somewhat uncertain. It is believed to have reached the U.S. on imported buckthorn shrubs.

The soybean aphid is currently found in at least eight counties in Nebraska.