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By: Case, Laurie J. - Wissmann, Janet L. - Jeffords, Michael R. - Illinois. Natural History Survey DivisionEdition:Publication info: Champaign, Ill, Illinois Natural History Survey, [1988]Volume: no. 9Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects: Activity programs Control Curricula Ecology Entomology Environmental education Gypsy moth Illinois Insect pests Insekten Ökologie Pests Pflanzenschutz Schwammspinner Study and teachingBHL Collections: