Estudio sobre el barrenador Hypsipyla grandella (Zeller) (Lepidóptera: Pyralidae). XXIII Efectos de radiación gamma en larvas, pupas y adutos.

Abstract

In this study the effect of gamma radiation on last instar H. grandella larvae, pupae of early in advanced age, and adults was evaluated with reference to mortality, deformation, fecundity and longevity. Complete sterilization of male and female adults was obtained in all treated life stages. However, irradiation of the adult stage was most effective. Applying doses of 35 kr to male and 30 kr to female H. grandella, no influence of radiation on mortality and deformation was observed. In addition, longevity and copulation of adults were less influenced by this treatments, than longevity and copulation of adults obtained from any of the other life stages treated. The fertility and fecundity of normal females mated it with irradiated males (35 kr) were respectively 1.5 and 47.9 per cent. Normal males mated with irradiated females (30 kr) resulted in 0.0 per cent fertility and 34.4 per cent fecundity.