A multiple regression model for parasitization of gypsy moths by the introduced larval parasite Cotesia melanoscelus (Hymenoptera: Braconidae)

Abstract

Cotesia melanoscelus (Ratzeburg) is a bivoltine, solitary, endoparasite of larvae of the gypsy moth, Lymantria dispar (L.). Imported from Europe after the turn of the century, it readily became established and now occurs throughout the generally infested area. Rates of parasitization are highly variable, particularly during the second (overwintering) parasite generation when females attack third and fourth instars of the gypsy moth. Detailed observations on parasitization of gypsy moths by this species were made in yellow pine-hardwood stands at Belleplain State Forest on the coastal plain of southern New Jersey during 1982-1989. Each year of the study, C. melanoscelus was the dominant larval parasite of L. dispar.

Parent Publication

• Proceedings, U. S. Department of Agriculture interagency gypsy moth research review 1990

Citation

Fuester, Roger W. 1991. A multiple regression model for parasitization of gypsy moths by the introduced larval parasite Cotesia melanoscelus (Hymenoptera: Braconidae). In: Gottschalk, Kurt W.; Twery, Mark J.; Smith, Shirley I., eds. Proceedings, U.S. Department of Agriculture interagency gypsy moth research review 1990; East Windsor, CT. Gen. Tech. Rep. NE-146. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station: 139.