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Identification
Small brown moth; green-brown larvae web together and hollow out berries in cranberries and blueberries.
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Life Cycle
Single generation per year in most regions; larvae overwinter in cocoons in soil or mulch, moths emerge as fruit begins to set.
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Damage Signs
Larvae bore into fruit and feed internally, webbing several berries together with silk; infested fruit turns premature red and drops.
healing
Treatment
Remove and destroy webbed, infested fruit clusters. Time insecticide sprays to egg-laying period if infestations are severe.
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Prevention
Rake and remove mulch and debris beneath plants in autumn to eliminate overwintering cocoons.