Browsing by Subject "control scale insects shrubs trees"
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Item Recognition and Control of Scale Insects on Trees and Shrubs(University of Minnesota. Agricultural Extension Service, 1960-03) Hodson, A. C.; Lofgren, J. A.Item Recognition and Control of Scale Insects on Trees and Shrubs (Revised 1964)(University of Minnesota. Agricultural Extension Service, 1964) Hodson, A. C.; Lofgren, J. A.