Hawlley, I. M. <br/><br/>
The fruit tree leaf roller and its control by oil sprays  / 
by I. M. Hawlley 
 - Logan , Utah  :   Utah Agricultural Experiment Station 
 - 15 p. 
 - Bulletin ; 196 .
<br/><br/> Enc. con impresos similares 
<br/><br/><label>LCCN: </label>206324 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arboles futales -- enfermedades<br/>Fitopatología -- colecciones de escritos  Arboles frutales -- plagas 
<br/><br/><label>Dewey Class. No.: </label>PA-C 632 B85