Boll Weevils: Field and Laboratory Assessment of Mating Ability and Sperm Content After Irradiation with or without Diflubenzuron Treatment

Sperm depletion did not occur within the 1st week after irradiated males and females of Anthonomus grandis Boheman were released together into isolated field plots. Also, survival and mating ability did not differ as a result of treatment. The treatments were: irradiation of 4-day-old adults plus diflubenzuron (N-(4-chlorophenyl). N/sup 1/-(2,6-difluorobenzoyl) urea)), fractionated irradiation of pupae, and fractionated irradiation of adults plus diflubenzuron.