Jon J Tollefson

Professor Emeritus
Jon Tollefson

Note: Not accepting new students.

Jon Tollefson's work is in the area of corn rootworm management. The corn rootworm is the most important insect attacking corn in the North American Corn Belt. His research emphasizes the development of reliable, functionable sampling techniques and practical economic thresholds.

Area of Expertise: 
Ecology of Corn Insects
B.A., Gustavus Adolphus, 1967
Ph.D., Entomology, Iowa State University, 1975