How to Manage Pests
Pests in Gardens and Landscapes
You can remove borers through a technique called worming.
Remove 6 to 8 inches of soil from around the trunk and
peel back the bark to observe the burrows. Use a pocketknife
or some other pointed instrument to dig the larvae out. Be
careful; it is possible to injure the tree seriously if too
much wood is removed.
soil from trunk to observe burrows