Sapsucker Woodpecker Holes in Pecan: Insects Attracted to Sap

Central Missouri pecans: rows of ½-1" holes in lines around trunk to 15-20 ft up; trees otherwise healthy.

Diagnosis

Yellow-bellied sapsucker woodpecker—feeds on sap (>50% diet) and attracted insects. Drills orderly holes; sap attracts insects; returns to eat insects. Thin-barked trees (pecan, maple) damaged more than oak.

Management

No need to fill holes—tree heals naturally. Spray area with malathion or Sevin to kill insects, discouraging woodpecker. Doing nothing OK—health not significantly impacted.