1. Carter JC, Carter LR. 1974. An urban epiphytotic of phloem necrosis and Dutch elm disease, 1944-1972. Illinois Natural History Survey Bulletin 31: 113–143.
2. Coffelt MA, Schultz PB. 1993. Host plant suitability of the orange-striped oakworm (Lepidoptera: Saturniidae). Journal of Environmental Horticulture 11: 182–186.
3. Craighead FC. 1949. Insect Enemies of Eastern Forests. US Department of Agriculture Publication #657. USDA, Washington DC, USA.
4. Cunningham PA, Dix ME. 1983. Variation among Siberian elms in their susceptibility to defoliation by the spring cankerworm. Proceedings of the North Central Tree Improvement Conference. Wooster, Ohio.
5. DeHayes DH. 1983. Resistance of trees to insects: a geneticist’s perspective. Proceedings of the Northeast. Forest Insect Work Conference. Orono, Maine, USA.