Tent Caterpillars

Tent Caterpillars are the silvery, conical tents of the eastern tent caterpillar that can be observed on trees in Wisconsin during May and June of each year.

The City of Sun Prairie is not taking any action regarding eradication of tent caterpillars. There is no health threat to the public; however, we will record your concern and location if you email Public Works, Parks & Forestry, or call 608-837-3050.