Chemosterilization of the tropical house mosquito Culex pipiens fatigans Wied.: laboratory and field cage studies

Tris(1-aziridinyl)phosphine sulfide was found to be an excellent sterilant for male Culex pipiens fatigans. When male pupae were exposed to a 0.6% solution for 3 hours, the ensuing adults were rendered permanently sterile with no apparent reduction in their vigour or longevity based on laboratory and field cage studies. Females, however, exposed to the same dosage for the same length of time were partially fertile.