The California Department of Food and Agriculture has decided to spray a natural pesticide commonly used on organic farms in the Ventura County community of Ojai to knock down a local infestation of gypsy moths, according to an article in the Ventura County Star.

The gypsy moth was deliberately introduced into the United States in 1868 by French scientist Leopold Trouvelot, who wanted to breed a disease-resistant, silk-spinning hybrid caterpillar. Some moths escaped from his Massachusetts lab and the insect became a notorious pest of hardwood trees in the eastern United States, according to a