Cocoons of Macrocentrus grandii that have formed and are nearly covering the remains of a European corn borer larva (S. Udayagiri).

Eriborus terebrans female, a parasite of European corn borer larvae in the north central region of the United States (D. A. Landis).

Lydella thompsoni puparium next to the cadaver of a fifth instar European corn borer in potato (C. E. Mason).

A Macrocentrus grandii female preparing to insert an egg into a European corn borer larva (S. Udayagiri).

European corn borer egg mass much darker than the blackhead stage typical of egg parasitism by a tiny Trichogramma species (C. E. Mason).

Egg mass of European corn borer being parasitized by a tiny Trichogramma nubilale wasp (C. E. Mason).

Dead larva of a European corn borer that was killed by Beauvaria bassiana, a pathogenic fungus (M. E. Rice).

Lydella thompsoni adult fly, which parasitizes European corn borer (R. G. Weber).

Lady beetle larva, a predator of European corn borer eggs (M. E. Rice).

Adult lady beetle, Coleomegilla maculata (M. E. Rice).