Exposure of Tribolium castaneum (Herbst) females to pirimiphos-methyl alters the fitness of their progeny

摘要: Insecticidal treatment is a common practice for the control of stored-product insect pests. Most studies are focused on direct effects insecticides target insects, while there no data indirect adults in terms progeny fitness. This study deals with effect pirimiphos-methyl Tribolium castaneum (Coleoptera: Tenebrionidae), investigating their exposure time cost to For this purpose, females T. were exposed 1, 3, 8, 16, 24, and 72 h birth or death rates calculated. The fecundity, as well survival progeny, was affected by parental insecticide. When 1 3 h pirimiphos-methyl, net reproductive rate 4.1 4.3 females/female, respectively, which did not statistically differ (6.3 females/female). Further significantly rate, where lowest value observed at 72-h (0.97 intrinsic increase, finite between (0.029 females/female/day 1.029, respectively) 1 h (0.021 1.021, (0.023 1.023, respectively). By increasing detrimental fitness revealed based values increase. these parameters (0.001 1.000, same trend doubling time. In contrast, mean generation all insecticide treatments. fact that negatively affects demographic offspring production should be seriously taken into account when management strategies applied against notorious species since it could reduce repeatedly insecticidal applications storage facilities.