Illinois’ Most Unwanted Invasives

2023 Most Unwanted

While there are many invasives that are considered some of Illinois’ Most Unwanted Invasives, the spotted lanternfly remains at the top of the list.

This insect  has not been found in Illinois.  If you suspect the spotted lanternfly, please contact the Illinois Department of Agriculture at (815) 787-5476


Take a photo and send a detailed email to: including when, where, and specifics of the location

Information on the Spotted Lanternfly

Aids for Identification

USDA Hungry Pests

National Invasive Species Information Center

Don’t Move Firewood

State Information

Pennsylvania Department of Agriculture

Penn State University

New York Department of Agriculture

Cornell University

New Jersey Department of Agriculture

Rutgers University

Maryland Department of Agriculture

University of Maryland


Northeastern IPM