Beetles that bore into tree branches, twigs and trunks include bark beetles, flatheaded borers and longhorned borers. In each case, adults lay eggs on or in wood, and larvae feed within the wood, usually making distinctive tunnel patterns called galleries.
More tree borers can be found in Caterpillars.
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Agriculture and Natural Resources, University of California. What is IPM?
Materials and Methods
Ips bark beetle. Flatheaded borer larva.
Red palm weevil Trap ----- clear description
Eucalyptus longhorned borer.