Improvements in the control of ribes by chemical and mechanical methods / by H.R. Offord ... [et al.].
|Other Authors:||Offord, H. R. 1903-|
Washington, D.C. : U.S. Dept. of Agriculture, 1952.
White pine > Diseases and pests > Control.
72 p., 9 leaves of plates :
ill., charts, map ;
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- Full viewv.906(1952) (original from University of Illinois)