Dogwood Borer on Apple
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Dogwood borer (Synanthedon scitula) adults are a clearwing moth (both fore and hind wings are mostly clear), resembling a small wasp. Thorax and abdomen are dark blue, almost black with yellow bands. Mature larvae are 3/5 inch long, cream-colored with reddish-brown heads and two brown spots on the upper surface of the front thoracic segment.
Dogwood borer larva.
(Photo: Ricardo Bessin, University of Kentucky)
Dogwood borer male adult.
(Photo: James Solomon, USDA, Bugwood.org)
Dogwood borer damage to trunk.
(Photo: John Strang, University of Kentucky)
Management:
- Trunk sprays applied after peak flights
- Monitor using pheromone traps
- Remove tree guards for monitoring larval activity
