Corn Earworm Egg Parasitoid vs Locust Borer

Side-by-side species comparison

Attribute Corn Earworm Egg Parasitoid Locust Borer
Scientific Name Trichogramma pretiosum Megacyllene robiniae
Order Hymenoptera Coleoptera
Family Trichogrammatidae Cerambycidae
Size 0.3-0.5 mm 14-22 mm
Habitat Farmland Farmland
Diet Parasitoids Pollen Feeders
Regions North America, South America Eastern and Central North America
Conservation Least Concern Least Concern

Corn Earworm Egg Parasitoid

A microscopic egg parasitoid wasp used extensively against cotton bollworm and corn earworm. It is the most commercially produced beneficial insect in the Americas.

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Did You Know?

Millions of these wasps are released per hectare in a single application for pest control.

Locust Borer

A striking yellow-and-black wasp mimic that attacks black locust trees in North America. Adults appear in autumn and are commonly found on goldenrod flowers. Larval boring weakens locust trunks and can cause breakage.

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Did You Know?

Adults synchronize their emergence with goldenrod bloom, making autumn fields their primary mating arenas.