The Illinois Department of Agriculture is spraying for Gypsy Moths this week beginning Wednesday morning.
Gypsy Moths, and their larva, kill trees and destroy bushes. They are an invasive species not native to the continent.
The spray used to treat the moths is called Splat-o and consists of water, wax, and pheromones that confuse male Moths to prevent them from breeding.
Streator is on the list of locations to be treated. The compound will be sprayed from a helicopter or plane.