Tree leaves will receive an application of tiny particles that mimic the pheromones female gypsy moths transmit to attract males during mating season. Some love-sick males will chase the pheromone particles high in trees and exhaust themselves before they can locate the females that are usually located closer to the ground. It is hoped the procedure will significantly reduce the production of gypsy moth larvae that destroy leaves and trees. Treatment is planned for the last week of June, weather permitting.
Males can literally fly themselves to death looking for mating partners that aren t really there.
Because the destructive moths have invaded the same area in which the Karner blue butterfly is found, entomologists have selected a non-insecticide method of controlling gypsy moths. The procedure is designed to protect the butterflies and to eradicate the gypsy moths. In addition to the protection given the Karner blue butterfly by the federal government, the Indiana House of Representatives passed a resolution this year encouraging the DNR to protect the species. Karner blue butterflies and other kinds of moths or butterflies are not affected by the pheromone flakes because they are not interested in the gypsy moth scent. The pheromone flakes are not harmful to people, pets or other animals.