Mating Competitiveness of Chemosterilized and Normal Male House Flies

Male house flies sterilized by feeding on a diet containing 1 percent of apholate (2,2,4,4,6,6-hexa(1-aziridinyl)-2,4,6-triphospha-1,3,5-triazine) were as successful as normal males in competition for mates. The percentage of sterile eggs laid by females in cages containing normal and chemosterilized males was as high as, or higher than, would be expected from the ratio of sterile males present.