166 DDT — ^Killer of Killers 



per acre of a spray prepared from 4 pounds of 50% DDT 

 wettable powder per 100 gal. of water. 



CORN 



European Corn Borer Control 



Use either a 3 % DDT dust or a spray prepared from 

 DDT wettable powder. The 3 % dust is applied at the rate 

 of 30-40 pounds per acre at weekly intervals just before the 

 tassels emerge. The spray is prepared from 1 pound of 50 % 

 DDT powder per 100 gal. of water, and is applied at the rate 

 of 150-200 gal. per acre. Three to five applications should 

 be made at 5- to 7-day intervals. 



COTTON 



Boll Worm Control 



Apply a 5 % DDT dust at the rate of 15-20 pounds per 

 acre as soon as the moths begin laying eggs. Make 2 or 3 

 applications at 5 -day intervals. 



Flea Hopper and Lygus Bug Control 



Apply a 5 % DDT-sulfur dust at the rate of 25 pounds 

 per acre as soon as infestation appears. 



FLOWERS 



Thrip and Aphid Control 



DDT gives very good control of thrips and aphids on 

 snapdragons, chrysanthemums, and roses. A satisfactory 

 spray can be prepared by adding 1 to 2 pints of 25 % DDT 

 emulsifiable solution to 100 gallons of water. Application 



