Virginia Cooperative Extension ServiceVirginia Polytechnic Institute and State University. Extension DivisionWeidhaas, John A., Jr.2019-02-272019-02-271981-01http://hdl.handle.net/10919/8795725 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.A761 P4Plants, Ornamental -- Diseases and pests -- Control -- VirginiaExtension publication