Biotypes of the Hessian Fly (Diptera: Cecidomyiidae) Identified in the Southeastern United States2
Ten samples of field populations of Hessian fly, Mayetiola destructor (Say), from four southeastern states were evaluated in the laboratory for biotype composition. This study reports the first identification of biotypes GP, G, J. L. M, and O from the south. The H3 gene no longer provides effective resistance in any of the areas sampled. However, the H7H8 genes continue to provide protection in many areas sampled. The data show that the H6 and H5 genes continue to be effective in many areas sampled.
Contributor Notes
2 Journal paper no. 12,068, Purdue University Agricultural Experiment Station, West, Lafayette, IN 47907.
3 Former Graduate Research Assistant, present address: 80 Campola, Nawalapitiya, Sri Lanka.
4 Former Research Leader, Insect and Weed Control Research Unit, USDA-ARS and Professor, present address: Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE 68583-0816.
5 Research Associate.
6 Former Graduate Research Assistant, present address: Taiwan Agricultural Research Institute, 189 Chung-cheng Road, Wan-feng, Fu-feng, Taichung, Taiwan, Republic of China.