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maryland cooperative extension
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Appalachia meets the Potomac, spring public meeting, Clarysville, Maryland, May 19-20, 1966. Cosponsored by the University of Maryland Cooperative Extension Service
University of Maryland Cooperative Extension Service · Interstate Commission on the Potomac River Basin
29 sayfa · 1966
Water Supply / Watersheds
Control of insects and diseases in home vegetable gardens
J. J. Linduska, University of Maryland Cooperative Extension Service · Cooperative Extension Service, University of Maryland
29 sayfa · 1982
Plant diseases / Vegetable gardening / Pesticides
Controlling plant diseases in home landscapes
Ethel M. Dutky, University of Maryland Cooperative Extension Service · Cooperative Extension Service, University of Maryland
41 sayfa · 1983
Plant diseases / Gardening / Pesticides