Two species of tent caterpillars are important tree pests in New York State. About every decade they become numerous enough in local outbreaks to cause concern. At times the epidemics reach statewide ...

Eastern tent caterpillars are a native species that create noticeable silken nests in trees, primarily black cherry trees. While they may cause temporary defoliation, they do not kill trees and serve ...

Tent caterpillars have been showing up everywhere, with large webs this spring in and around Chester County. Are they dangerous at all, or just unsightly? How do you remove them? Coordinator of Master ...

Western tent caterpillars and their cocoons covered Skagit County this week. Washington State University Skagit County Extension Entomology Coordinator Charlie Coslor said in an email that a boom in ...

Big yuck factor Forest tent caterpillars (sometimes wrongly called army worms, which are a different species) often emit a greenish-black fluid when disturbed that stains paint and clothing. During ...

The tree in my yard has webbing in some of the branches, and I think I see caterpillars. What should I do? — K.W. The webs you are describing are probably the webs of tent caterpillars. Tent ...

During our long growing season, I get calls about caterpillars in trees and what to do about them. Caterpillars, the larvae of moths and butterflies, use tree leaves as a source of food. In turn, many ...