DUSTING 



Dusting may be easier than spraying if you 

 have to treat a large area. 



Apply a 5-percent toxaphene or chlordane 

 dust at the rate of 40 pounds per acre (or 1 

 pound per 1,000 square feet), or a 1-percent lin- 

 dane dust at the rate of 25 pounds per acre (or 

 0.6 pound per 1,000 square feet). The treat- 

 ment gives control for about the same period as 

 sprays. 



Use a rotary hand duster or a power duster, 

 depending on the size of the area to be treated. 



PREPARING A SPRAY FOR CHIGGER CONTROL 



Insecticides, and forms 



in which they may be 



purchased 



Amount of purchased 



product to mix with 



water 



For treat- 

 ing 1 acre 



For treat- 

 ing 1,000 

 square feet 



Toxaphene and chlordane 



Emulsifiable concentrate: 



40-percent 



50-percent 



65-percent 



Wettable powder: 



25-percent 



42-percent 



Lindane 



Emulsifiable concentrate: 



20-percent 



25-percent _. 



Wettable powder: 



25-nercent 



2V2 quarts 

 2 quarts 

 1% quarts 



8 pounds 

 5 pounds 



IV2 pints 

 1 pint 



1 pound 



2 ounces 

 1*2 ounces 



1 ounce 



3 ounces 



2 ounces 



0.6 ounce 

 0.5 ounce 



0.5 ounce 



PRECAUTIONS 



Handle insecticides with care. Most of them 

 are poisonous to people and to animals if used 

 carelessly. . . . Wash off any insecticide that is 

 spilled on the skin. . . . Don't spray or dust 

 near feed and water troughs. . . . Don't use 

 insecticides in strengths greater than those 

 recommended. 



Prepared by the Entomology Research Division 

 Agricultural Research Service 



Washington, D. C. 



Revised February 1959 



U. S. GOVERNMENT PRINTING OFFICE . 1958-0-467624 



For snle by the Superintendent of Documents, U. S. Government 

 Printing Office. Washington 25, D. C. - Price 5 cents 



