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).

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

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

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

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

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

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

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

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