Virginia Polytechnic Institute and State University. Extension DivisionMcElwee, Robert L.Coartney, James S.Weidhaas, J. A. (John A.)2015-08-052015-08-051979http://hdl.handle.net/10919/55373vi, 31 pagesapplication/pdfen-USVirginia Cooperative Extension materials are available for public use, re-print, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.LD5655 .A762Pesticides -- Environmental aspectsExtension publication5456421