Field Identification
A noctuid caterpillar that mines buds, flowers, and fruit of tobacco, cotton, tomatoes, and ornamentals; closely related in damage habit to corn earworm but with distinct larval microspines and head color patterns for the brave with a hand lens.
Larvae show sparse, large microspines compared to Helicoverpa zea and often retain a tan or orange-brown head in many instars; adults are greenish to brown moths with lighter hindwings.
How to Deal With It
Organic Control Methods
Bt kurstaki against young larvae; spinosad on exposed feeding stages—timing beats potency once larvae are sheltered in squares or buds.
Egg and larval parasitoids including Trichogramma and various braconids; generalist predators in diverse plantings.
Remove crop debris; avoid sequential host crops in the same pocket garden; encourage flowering insectaries.
Hand removal on small plantings; row covers over transplants until flowering if pollination allows.
Blacklight or pheromone monitoring where available; scout terminals and buds for earliest hits.
Let Nature Handle It
Natural Enemies
- Trichogramma spp.
- Braconid wasps
- Predatory bugs
Threat Map