- k6 - 



Va. Control of Insects Affecting the Production of 



Flue-Cured Tobacco * To (1) investigate control of the 

 tobacco flea beetle in plantbeds, on newly set plants, 

 and on field tobacco obtained from a. sprays and dusts 

 applied to foliage, b. chlorinated hydrocarbon insecticides 

 applied in transplant water; (2) investigate horn worms from 

 the standpoints of a, insecticides effective in controlling 

 both horn worms and other insects on tobacco, b. certain 

 biological and ecological studies, and c. control with new 

 type .black-light traps; (3) determine the effectiveness of 

 systemic insecticides applied in transplant water in 

 controlling the green peach aphid and flea beetle; 

 (k) determine the effects of new and promising insecticides 

 on the flavor and aroma of tobacco products; and (5) develop 

 control methods for other tobacco insects if they should 

 constitute a major problem. 

 Eat. 8605k 



VIII. Control of Weeds by Insects 



Idaho Studies on the Ecology and Propagation of 



St. Johnswort Insects in Idaho . r Pn (1 ) ript.f> nrrin f> if 3 

 recently introduced species of St. Johnswort feeding 

 insects can become established in Idaho; (2) conduct 

 ecological and life history studies on all introduced 

 St. Johnsworth feeding insects; and (3) determine role of 

 each St. Johnswort insect in control of this weed in Idaho. 

 Ent. 231 Coop. ARS, FS 



