Life Cycle and Biology

Found a caterpillar feeding in your yard, and you aren’t quite sure if it’s spongy moth (Lymantria dispar) [formerly known as the “gypsy moth”]?  Our identification page can help you figure it out.

We also have information on the life cycle and biology of spongy moth to help you better understand this pest.

Lymantria dispar larva feeding on leaf material
Photo Credit: Bill McNee, WI DNR