1. Andow D. A . 1983. Plant diversity and insect populations in experimental agroecosystems: interactions among beans, weeds, and insects. Ph.D. dissertation, Cornell University, Ithaca, NY. University Microfilms International, Ann Arbor, MI.
2. Population Density of Empoasca fabae (Homoptera: Cicadellidae) in Weedy Beans
3. Carlson J. D Whalon M. E. Landis D. A. Gage S. H. . 1991.Evidence for long-range transport of potato leafhopper into Michigan. Proceedings, American Meteorological Society Conference on Biometeorology.
4. Relay Intercropping Soybeans into Winter Wheat and Spring Oats
1
5. Coggins M. L . 1991. Potato leafhopper (Empoasca fabae) and alfalfa weevil (Hypera postica) density and damage in binary mixtures of alfalfa and forage grasses. M.S. thesis, Michigan State University, East Lansing, MI.