Fall webworms are caterpillars that form tent-like webs around leaves and branches on trees. They prefer walnut, hickory, ash, and crabapple trees, but will settle for other species that offer a good source of food.
Do you see cottony webs on some branches in your tree? You could have fall webworms. They start spinning a tent-like shelter as soon as they're hatched. While they're at it, they munch on your tree's leaves. Your tree could suffer through 4 generations of these pests in a year.
If you can reach the nests, cut them off the tree and destroy them. You can use a pole saw to snip off the high branches.
Some nests are too high even for pole saws. You can still reach them with a sprayer. Spray the nest and surrounding area with a systemic insecticide. You can apply it with the Ortho® Dial 'N Spray® Hose-End Sprayer. You'll destroy the bugs, but the nest will remain visible.
Fall webworms are caterpillars that form tent-like webs around leaves and branches on trees. They prefer walnut, hickory, ash, and crabapple trees, but will settle for other species that offer a good source of food.
