Fewer applications of DDT with proper timing produce equal fields of potatoes at less cost
Simpson, G.W.
Fewer applications of DDT with proper timing produce equal fields of potatoes at less cost G.W. Simpson and W.A. Shands - Orono University of Maine 1954 - 28p.; 24cm. - (maine Agricultural Experiment station bulletin; no.533) .
635.212 9 SI58F
Fewer applications of DDT with proper timing produce equal fields of potatoes at less cost G.W. Simpson and W.A. Shands - Orono University of Maine 1954 - 28p.; 24cm. - (maine Agricultural Experiment station bulletin; no.533) .
635.212 9 SI58F
