The Ohio Department of Agriculture is set to conduct aerial spraying to manage the invasive spongy moth population in Mount Vernon and surrounding areas this week.
According to a news release, spongy moth caterpillars feed on leaves, which weakens trees and shrubs and can potentially kill them. The Ohio Department of Agriculture has identified a growing population in the area, necessitating control measures. The agency said that the aerial treatments are not harmful to humans, animals, honeybees, or plants.
The release specifies that the treatment area includes the eastern portion of Mount Vernon, the Village of Gambier, much of Monroe and Pleasant Townships, extending east to Monroe Mills Road.
The state will employ planes or helicopters flying 100 to 200 feet above treetops to spray SPLAT GM-O insecticide. This non-toxic, biodegradable formulation uses pheromones to control spongy moths by disrupting their mating process. If found on vehicles or other surfaces, it can be washed off with soap and water.
The spongy moth (Lymantria dispar) has been an invasive species in the United States for centuries. It was previously known as the gypsy moth until 2022 when its name was changed by the Entomological Society of America due to concerns over derogatory connotations associated with the term "gypsy."
According to historical accounts mentioned in the release, Frenchman Etienne Trouvelot introduced the insect into Medford, Massachusetts, in the mid-1860s with intentions for silk production. However, larvae escaped into nearby woods.
