Cotton square and bolls damaged by lygus bugs. 



INSECTICIDES AND DOSAGES 

 RECOMMENDED FOR LYGUS 

 BUG CONTROL 



Insecticide 



Chlorinated hydro- 

 carbons: 



Aldrin 



BHC (gamma) 



DDT 



Dieldrin 



Dilan 



Endrin 



Heptachlor 



Strobane 



Toxaphene 



Organic phosphorous 

 compounds: 



Dibrom 



Dylox 



Guthion 



Malaihion 



Methyl parathion. . . 

 Other: 



Sevin 



Amount of active in- 

 gredient to apply per 

 acre in a dust or spray 



Pounds 



0. 25 to 0. 75 

 .3 to .45 

 .5 to 1. 5 

 . 15 to .5 

 1.5 

 .1 to .4 

 . 25 to .5 

 to 5 

 to 5 



.5 to 1 

 to 1. 5 



.25 to .37 

 to 2 



. 25 to . 37 



to 2. 2J 



SELECTION AND APPLICATION 



The accompanying table lists insec- 

 ticides recommended for control of 

 lygus bugs, and gives rates of applica- 

 tion. Consult your State guide before 

 selecting the insecticide, as recom- 

 mendations are different in different 

 States. For example, Arizona reports 

 that Lygus hesperus has developed re- 

 sistance to DDT. and California reports 

 that lygus bugs in general have de- 

 veloped resistance to all the chlorinated 

 hydrocarbon insecticides. 



Dusting 



You may apply dust with ground 

 equipment or aircraft. In either case, 

 the rate of application should be 10 to 

 15 pounds of dust per acre in southern 

 cotton-growing areas, or 20 to 30 

 pounds in western areas. 



If you apply dust with ground equip- 

 ment, use one nozzle for each row; set 

 nozzles 6 to 10 inches above tops of the 

 plants. 



