Flea Repellents for Use on Clothing1

Abstract
Repellency tests of 112 compounds against Ctenocephalides cants and C. felis were made by impregnating cloth strips with the compounds in suitable volatile solvents using 8 grams of the compound per sq. ft. of cloth. Six compounds gave 100% repellency and 20 others above 90%. This is comparable to <75% repellency for the 6-2-2 mixture (Dimethyl phthalate 60%, Rutgers 612 20%, and Indalone 20%) issued to the armed forces. The toxic and irritating properties to man have not been determined.

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