Abstract
Eggs of Plodia interpunctella (Hübner) were irradiated at different ages to determine the production and inheritance pattern of genetic damage and to assess the possible use of P 1 or F 1 adults for release in a sterile-insect release for population control. P 1 fertility and the numbers of F 1 adults were greatly decreased by 4-krad but not by 1- or 2-krad exposures to gamma irradiation. However, 2 krad was the highest dose that allowed an adequate percentage of the irradiated eggs (22.6%) to complete development to the adult. All combinations of age and dose that produced progeny (F 1 ) were tested, and F 1 progeny were almost fully fertile and produced normal numbers of F 2 progeny. Irradiation of eggs for mass production of either sterile or partially sterile adults was found not to be feasible.
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