Dosages of Gamma Irradiation for Full and Inherited Sterility in Adult Pink Boll worms12

Abstract

Newly emerged adult Pectinophora gossypiella (Saunders), when exposed to 25 or more krad of gamma irradiation and allowed to mate with untreated insects of the opposite sex, produced no fertile adult progeny. First and 2nd-filial-generation adults from adults treated with 5-18 krad exhibited varying degrees of sterility. This feature was not so pronounced in the 3rd, filial-generation adults. Irradiation of mated females at 10 to 30 krad gave results similar to those of mating of males and females irradiated at these dosages prior to their mating.