When to Spray Webworms?

The best way to kill webworms with dormant oil is in the early spring while the tree is dormant. Dormant oil is preferable due to its low toxicity and easy availability; any local garden supply store will have it. Dormant oil attacks and kills the overwintering eggs.

What do you spray on pecan trees for worms?

Homeowners can treat fall webworms with insecticides containing the active ingredient spinosad. Trees that are less than 20 feet tall can be sprayed using a garden hose sprayer attachment or another type of sprayer that can reach the top of the tree.

How do you get rid of fall webworms?

Removal of webworms in small yard trees can be accomplished using a rake or a long pole equipped with a hook to pull down the webs. If within reach, a web located at the tip of a branch can easily be pruned out and destroyed.