SOME RULES FOR POISONING THE 

 QOTTON ROLL WEEVIL. 



DO IT RIGHT OR NOT AT ALL. 



IVyTANY valuable lessons have been gained from the recent expan- 

 -^^-^ sion of commercial weevil poisoning. It has again been shown 

 that the boll weevil can be poisoned with profit if conditions are 

 favorable and if proper methods are used, but it has been empha- 

 sized anew that unfavorable conditions and improper methods can 

 lead only to failure. A survey of the poisoning by farmers in 1920 

 shows that an unfortunately large proportion were not properly in- 

 formed as to the conditions under which they should poison and the 

 methods they should pursue. As a result there were many unneces- 

 sary failures. If better results are to be secured in the future, 

 therefore, the operation must be more thoroughly understood. The 

 present circular is prepared to give, in as brief and concise a form 

 as possible, the information needed by a farmer in deciding, first, 

 whether it will pay him to poison and, second, the methods he should 

 follow. 



TN^'eevil poisoning is fully as important an operation as cultivation 

 and deserves as much serious thought and attention. Unless you are 

 willing to undertake it in this manner, you should not attempt to 

 poison. Study these instructions carefully and follow them as 

 closely as your conditions will permit. 



WHERE WILL IT PAY YOU TO POISON? 



It will pay to poison — 



If the weevils are reaUy injuring your crop seriously, and 



If your land is sufficiently fertile to yield at least one-half bale per 

 acre with weevil injury eliminated, and 



If your farming organization is such that 3^ou feel assured that the 

 ])oison applications will be made at the right time and in the right 

 manner, and 



If you are willing to spend the full amount necessary to provide 

 nn adequate supply of dusting machinery and poison. 



25770°— 21 ^^ _ ^ . . 



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