Those Gross Cocoons

Have you been walking or driving around to see trees COVERED on cocoons? Wonder what they are? It's fall web worms! 

The fall webworm is a widely distributed native pest of shade trees and shrubs and appears from late summer through early fall. It feeds on almost 90 species of deciduous trees commonly attacking hickory, walnut, birch, cherry, and crabapple. This species acts similarly to the eastern tent caterpillar, but the fall webworm constructs its nest over the end of the branch rather than at tree crotches. The large conspicuous webs contain caterpillars, dead partially eaten leaves, and fecal droppings.


Read more at http://ento.psu.edu/extension/factsheets/fall-webworm

*Thanks to listener Steve from Bellefonte for help on the subject