Organic Stink Bug Management on Fruit Trees

Lifecycle Insights

Adults overwinter in weeds/brush. Active April onward. Eggs laid on leaves. Nymphs feed on fruit. Second generation migrates to orchards late summer.

Soap spray: 2% insecticidal soap on nymphs and egg masses.
Parasitic wasps: Telenomus podisi, Trichogramma spp. attack eggs.
Tachinid flies: Parasitize nymphs/adults; attracted by flowering trap crops (buckwheat, alyssum).
Pyrethrum (night only): Botanical insecticide; toxic to bees—apply after bloom, at dusk.
Dormant oil: Winter/early spring spray smothers overwintering eggs.

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