If you notice defoliation, you may be dealing with a case of a gypsy moth invasion. Gypsy moths, or rather their caterpillars, have a voracious appetite for tree leaves and can pose a significant ...

The Lymantria dispar, or spongy/gypsy moth, was introduced to North America in 1869 at Medford, Mass., where it was used in a failed silk-production experiment.