How to Manage Pests

Pests in Gardens and Landscapes

Worming

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.

Remove soil from trunk to observe burrows
Remove soil from trunk to observe burrows

Statewide IPM Program, Agriculture and Natural Resources, University of California
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Agriculture and Natural Resources, University of California

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