Viability of the miss-sexed female pupae in the process of application of sterile insect technique of male oriental fruit fly, Bactrocera dorsalis (Hendel)

Female pupae came from the genetic sexing strain (GSS) of Bactrocera dorsalis (Hendel) were irradiated by 60Co at 1d, 2d and 3d separately before emergence and the dosage were 90, 100 and 105Gy. The emergence percentage, flight ability and survival percentage under stress were tested. The irradiated female adults mated with unirradiated males and irradiated males came from GSS after emergence, the number of eggs and egg hatch rates were scored for each treatment at 10d and 17d separately. The results showed that the quality control trend of irradiated female were the same as the irradiated male. The irradiated female did not lay egg when mated with irradiated male. The number of eggs decreased sharp when the irradiated females mated with unirradiated males, and the number of eggs would decrease with the increase of irradiation dosage and decrease of pupae age. (authors)