Apple & Pear: Insect Identification Guide
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Title: APPLE CURCULIO
Description:
LATIN NAME:
Anthonomus quadrigibbus (Say)
LIFE CYCLE:
Overwinter as adults under the host; eggs are laid May to late June. Larvae are present June to mid-July. New adult generation active mid-July to mid-August before overwintering. One generation per year.
MONITORING:
No monitoring plan developed. Limb taps around petal fall of pear are useful to detect adults. Inspect young fruit for feeding and/or egg-laying punctures.
HOSTS:
Apple, pear, crabapple, hawthorn, quince, cherry.
COMMENTS:
The reddish-brown adult weevils are slow moving and will drop readily and play dead when disturbed. They could be mistaken for a piece of debris on a beating board until they resume activity.
BODY LENGTH:
Adult - 5.0 mm; Mature larva - 6.0 mm.