My fruitless mulberry tree has these webs all over some of the branches and the leaves are being eaten

My fruitless mulberry tree has these webs all over some of the branches and the leaves are being eaten

Q: My fruitless mulberry tree has these webs all over some of the branches and the leaves are being eaten, is this some kind of spider and what can I do for it?

A: No that is not a spider, those are the webs of a caterpillar called Web worms or Tent Caterpillars. They like mulberry trees and pecan trees in particular. Treat with a good general insect control spray or a biological spray containing BT or bacillus thurengensis. If reaching the pests to spray is a problem, they are not a serious threat to the health of the tree, they will make it look bad but will not kill it.

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