advocated at present by the Bureau of Entomology- than 

 either the boll weevil or the pink boll worm. In that case 

 the first brood of moths can be made to oviposit on a trap 

 patch of grasses, while the later broods, on cotton, could not be 

 controlled except by the means described by me in my Circular 

 No. 15:2, pp. 1 to 16, for the control of the boll weevil, the 

 boll worm and many other cotton insects, including, as ex- 

 plained on pages 33 to 35 of my Circular No. 152 and pages 

 12 to 18 of my Circular No. 154, the pink boll worm. This 

 method, in substance, consists in using poultry to pick on the 

 fallen squares containing juicy grubs such as of the boll 

 weevil, and concentrating oviposition of the boll weevil and 

 the boll worm in the late summer to a late sown trap patch of 

 cotton. 



The European corn borer would readily breed on sugar 

 cane. The first brood could be allowed to develop on grasses 

 and weeds surrounding the cane field. These grasses and 

 weeds would have to be cut at such time, that no adult can 

 develop. The subsequent generations can be controlled the 

 same as the 4 generations of the sugar can moth borer, de- 

 scribed on pages 11 to 16 of my Circular No. 56. In essence, 

 this method of control consists in sowing late corn at in- 

 tervals and using it for silage and to trap the insect into 

 hibernating quarters. 



There are other important insects that can be similarly 

 controlled. One of these is the sorghum midge. "In addition 

 to the many varieties of sweet sorghum, the sorghum midge 

 is known to infest broom corn, kafir, Johnson grass and milo. 



