UC IPM Online UC ANR home page UC IPM home page


SKIP navigation



Identifying Borer Damage—Bloom Season

On this page
  • Branch and twig borer
  • Pacific flatheaded borer
  • Peachtree borer
  • Shothole borer

Names link to more information on identification and management.

Click on photos to enlarge

Branch and twig borer damage
Branch and twig borer
Identification tip: Adults bore into small twigs and branches causing affected shoots to die.

Pacific flatheaded borer damage
Pacific flatheaded borer
Identification tip: Larvae feed under the bark of limbs or the tree trunk, causing the bark above their mines to appear rough and broken.

Peachtree borer damage
Peachtree borer
Identification tip: Look for gumming near the base of the tree trunk.

Shothole borer
Shothole borer
Identification tip: The presence of small holes on a branch is characteristic of a shothole borer attack.

Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2016 The Regents of the University of California. All rights reserved.

For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See our Home page, or in the U.S., contact your local Cooperative Extension office for assistance.

Agriculture and Natural Resources, University of California

Accessibility   /PMG/C005/m005bpborers.html revised: June 24, 2016. Contact webmaster.