Virginia Cooperative Extension ServiceSmeal, Paul L. (Paul Lester), 1932-Coartney, James S.2015-02-092015-02-091989http://hdl.handle.net/10919/51322ii, 80 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.A762Nurseries (Horticulture) -- VirginiaExtension publication23831169