Ruggles, A. G <br/><br/>
Spraying for the plum curculio  / 
A. G. Ruggles 
 - St. Anthony Park, Minn  :   University of Minnesota. Agricultural Experiment Station 
 - 10 p. 
 - Minnesota. Agr. Exp. Sta. Press Bull; 34 .
<br/><br/><label>LCCN: </label>201799 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conotrachelus nenuphar  Ciruela -- Plagas  Curculiónidos