Fields, G. J. <br/><br/>
Control de thrips on apples in the hood river Valley of Oregon / 
by G.J. Fields, R.W. Zwick 
 - Oregon :   Agricultural Experiment Station 
 - 18 p. 
 - Circular of information .
<br/><br/><label>LCCN: </label>205506 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Control de Plagas<br/>Manzana -- plagas <br/>Trips