Brann, Daniel E.Chappell, William E.2019-08-012019-08-011979-11http://hdl.handle.net/10919/92511Pesticide recertification test16 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.PesticidesTestsCertificationText