The fall webworm is a gregarious insect. They also prey on larvae of the fall webworm, as well as young hummingbirds. The caterpillars of the fall webworm have several strategies to defend against threats. It is resistant to gypsy moths but is defoliated by another pest, the mimosa webworm. "Mimosa pudica" has several natural predators, such as the spider mite and mimosa webworm. Galasa nigrinodis, the boxwood leaftier moth or boxwood webworm, is moth of the family Pyralidae. The saying "lucky as a webworm" is a reference to how adaptable they are. Ocnogyna baetica, the winter webworm, is a moth of the family Erebidae. Athrips rancidella, the cotoneaster webworm, is a moth of the family Gelechiidae. Dichomeris citrifoliella, the orange webworm moth, is a moth in the family Gelechiidae. Possible biological pest control agents include the Lespedeza webworm ("Tetralopha scortealis"). Loxostege cereralis, the alfalfa webworm, is a species of moth of the family Crambidae. The Mimosa webworm is composed of two generations that arise at different seasons. They are predators of codling moth larvae, and also of fall webworm. An example of an insect that it infects is the fall webworm.