You’ve probably seen them in your trees before: Webworms
They won’t necessarily kill your trees but multiple infestations can damage them.
There are a couple of strategies to prevent second and even third generations from multiplying:
- Break open webs so birds and wasps can get to them
- Prune away smaller branches with webs
Mark Bays with the Oklahoma Forestry Services has information on seedlings, webworms, burn bans and other educational resources.