COTTON OR BOLL WEEVILS 



11 



Figure 7. — The one-mule dusting machine is pulled by a mule or horse, which 

 walks between two rows of cotton. The dust is blown through two nozzles 

 onto two rows of cotton as the machine moves through the field. 



duster. One machine will dust 25 to 40 acres in a single night and 

 about 100 acres through the season. 



The larger dusting machines, which dust from 5 to 8 rows of cotton 

 at a time, are called power-operated machines. One kind (fig. 8) is 



Figure 8. — The cart dusting machine has two wheels, which straddle the cotton 

 rows, and it is drawn by two horses or mules. It has five nozzles and is oper- 

 ated by a gasoline motor. 



