^l^ 



ll««3' 



HOW INSECTS AFFECT THE COTTON 

 PLANT AND MEANS OF COM- 

 BATING THEM 



W. DWIGHT PIERCE 



Kiitoiiiologist, Southern Field Crop Insect Invesligutioiis 



FARMERS' BULLETIN 890 

 UNITED STATES DEPARTMENT OF AGRICULTURE 



C(jntribution from the Bureau of Entomology 

 L. O. HOWARD, Chief 



Washington, D. C. 



December, 1917 



Show this bulletin to a neighbor. Additional copies may be obtained free from Ihe 

 Division of PublicatioDS, United States Department of Agriculture 



WASHINQTON •. QOVERNMCNT PRIMTINQ OFFICE : HIT 



