Ewart W. H <br/><br/>
Suggestions for the use of DDT during the summer season for the control of Citricola scale and citrus thrips in central California  / 
W. H. Ewart 
 - Riverside, Calif.  :   University of California 
 - 3 h. 
 - News letter; 28 .
<br/><br/> Encuadernado con otros impresos similares 
<br/><br/><label>LCCN: </label>199610 
<br/><br/><label>Subjects--Topical Terms: </label><br/>DDT (insecticida)
<br/><br/><label>Dewey Class. No.: </label>PA-C 632.951 S67