Biocontrol Agent for Japanese Knotweed Released in New York - Maine Invasive Species Network - University of Maine Cooperative Extension

The Knotweed Psyllid (Aphalara itadori), a sap-sucking insect native to Japan, was released on June 10 by Dr. Bernd Blossey and colleagues at Cornell University. A week after releasing the 2,000 A. itadori adults at two locations in New York’s Tioga and Broome counties, the researchers found the insects had successfully laid thousands of eggs. read more