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Blueberry tip borer
Rufus Isaacs, MSU Entomology

Adult moths of this sporadic pest emerge after bloom and lay single, translucent eggs on succulent shoots. The young larvae tunnel into the shoot near the eggs, and feed inside. A small pinhole can be seen where the larva entered the stem. The internal feeding causes the stem to wilt and the leaves to dry up from the tips. Monitoring for the start of this symptom can be used to identify the egg laying period.

Drying term-inal leaves indicate tip borer injury.

Larvae continue developing into the fall and pupate inside the stem.Standard fruitworm controls usually prevent tip borer infestation; pruning infested shoots can help suppress populations.

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Last Updated - 6/22/07