168 DDT — Killer of Killers 



Weevil Control 



Apply 5 % DDT dust at the rate of about 20 pounds 

 per acre after weevils appear but before the pods are formed. 



POTATOES 



Colorado Potato Beetle Control 



Apply a 2 or 3 % DDT dust, with or without fungicides, 

 at the rate of 20-30 pounds per acre when the plants are 

 6 to 8 inches high, or apply a spray made from 1 pound of 

 50% DDT wettable powder per 100 gal. of water at the 

 rate of 100-150 gal. per acre. 



Leaf Hopper and Potato Flea Beetle Control * 



Apply a 3% DDT-copper dust at the rate of 30-40 

 pounds per acre as soon as the pests appear, and repeat at 

 10- to 14-day intervals as needed. Or, spray with a suspen- 

 sion prepared from 2 pounds of 50% DDT wettable pow- 

 der per 100 gal. of water. 



Psyllid and Tuber Flea Beetle Control 



Use a 5 % DDT-sulfur dust at the rate of 20 pounds 

 per acre, or a 3 % DDT dust at the rate of 35-40 pounds per 

 acre as soon as insects appear, and repeat every 10-14 days 

 as needed. A spray prepared from 2 pounds of 50% DDT 

 wettable powder per 100 gal. of water can also be used. 



Aphid Control 



Apply a 5% DDT-copper dust at the rate of 40-45 

 pounds per acre every 10 days starting with the first appear- 

 ance of the aphids. 



