They were accidentally introduced into Europe in where it is considered to be a worse.
Fall webworms, one of our native insect pests, are a perennial nuisance and in some cases a destructive pest. I have seen lots of large nests lately in sourwood, Fall webworm nest. Photo: SD Frank. choke cherry, other Prunus species, sweet gum, and many others. These guys have been recorded on hundreds of plant shrubhauling.barted Reading Time: 1 min. Aug 16, Fall webworms feed on over species of trees and shrubs. In North Carolina they are most often found on sourwood, persimmon and pecan. Fall webworms primarily cause cosmetic damage to shade trees because of the unsightly webs they form around the foliage on which they feed.
Young caterpillars eat leaf surfaces so that only the tiny veins shrubhauling.barted Reading Time: 6 mins. Oct 02, The webs contain many tiny, hairy caterpillars. Most often the fall webworm is found late summer into the fall on pecans, sourwood, and persimmon although they feed on over species of trees and shrubs. Fall webworms can be easily destroyed or disrupted by pulling down webs that are within reach with a stick or shrubhauling.barted Reading Time: 4 mins.
The Eastern tent caterpillar forms webs in the crotches of a tree in late-spring into summer, while the fall webworms form webs at the end of tree branches in late-summer into the fall.
Fall webworms are native to the US and attack 90 different species of trees including pecan, hickory, persimmon, sourwood, walnut, beech, birch, cherry, and crabapple to name a few. These voracious caterpillars will eat the foliage, sometimes nearly defoliating the tree.
Sourwood trees (Oxydendrum arboreum) are also attacked. In fact, Fall Webworms are known to infest more than tree species worldwide.
Fall Webworms are native to the U. S., Fall webworms infest sourwood trees Canada, and Northern Mexico. They were accidentally introduced to Europe and Asia where they have become a troublesome pest.