Svoboda, J.A., Insect Hormone Laboratory, Agricultural Research Service, USDA, Building 467, Beltsville, 20705, Maryland, United States Feldlaufer, M.F., Insect Hormone Laboratory, Agricultural Research Service, USDA, Building 467, Beltsville, 20705, Maryland, United States
Svoboda, J.A., Insect Hormone Laboratory, Agricultural Research Service, USDA, Building 467, Beltsville, 20705, Maryland, United States Feldlaufer, M.F., Insect Hormone Laboratory, Agricultural Research Service, USDA, Building 467, Beltsville, 20705, Maryland, United States