The state agency will treat trees with a pheromone mating disruptor that is not harmful to people, pets, wildlife, plants, cars, or structures. The treatment will be applied by a low-flying airplane that will make multiple passes over the preserves.
The wax-based droplets may stick to cars but can easily be scrubbed off and will not damage the paint or finish. Signs will be posted at the preserve entrances on treatment days.
The treatment is part of a statewide program to prevent Lymantria dispar
from establishing itself beyond northeast Illinois. The agency is also trying to reduce the impact of the moth’s invasion from other states.
For more information about the treatments, visit the Illinois Department of Agriculture’s website slowthespread.org
, call the agency’s DeKalb office at 815-347-0401
, or email program manager Nancy Johnson at Nancy.Johnson@Illinois.gov
is a destructive invasive pest that destroys trees and shrubs. Large populations of its caterpillars are capable of stripping plants bare, leaving them susceptible to disease and environmental stressors. Severe defoliation can kill trees. It feeds on over 250 species of plants but prefers oak and willow trees.