COTTON INSECTS 4lJ( 



Cotton stalks should not be burned except where this 

 course is recommended as a necessity in fighting the cotton 

 boll-weevil. Then extra pains must be taken to compen- 

 sate for the loss by introducing into the rotation at short 

 intervals some humus-forming crop. 



Insects of Mixor Iiiportaxce 



375. The cowpea-pod weevil (Chalcoderniis ceneus). — 

 This is a small black beetle or weevil, \\\\.h. a long snout 

 and marked with numerous tiny pits, or depressions (Y\g. 

 179). It injures the 

 young plants, espe- 

 cially the gromng ter- 

 minal buds and the 

 young stems. As the 

 plant grows larger 

 this insect ceases to 

 attack cotton. 



This is the insect 

 most frequently mis- 

 taken for the boll- 

 wee^-il. Conspicuous 

 differences exist in the shiny, black color and pitted 

 appearance of the cowpea-pod weevil, in contrast i\ith 

 the brownish or grayish appearance of the boll-weevil, 

 which is not conspicuously pitted. 



Injur}- to cotton by the cowpea-pod weevil usually 

 starts in areas where the previous crop was co^^-peas. 

 Hence, in some locahties where this pest is a serious one, 

 it mav be desirable to change the rotation that is generallv 



Jr'iG. 179. — Co^PEA-POD Weevil. 



