Evidence from Drosophila suggests that Hox genes not only specify regional identity, but have the additional function of repressing antennal development within their normal domains. This is dramatically demonstrated by a series of Hox mutants in the red flour beetle, Tribolium castaneum, and is likely an ancient function of Hox genes in insects.

chemical insecticides have been widely employed for the control of storage grain pests. this has caused such problems as insecticide resistance along with contamination of foodstuffs with chemical residues. thus, there is a growing interest in using pathogenic control agents as alternative. in this study, the potential of beauveria bassiana (bbweevil™, a commercial product containing 2×109 coni...

Females of many animal species are polyandrous, and there is evidence that they can control pre- and post-mating events. There has been a growing interest in consequences of polyandry for male and female reproductive success and offspring fitness, and its evolutionary significance. In several taxa, females exhibit mate choice both before and after mating and can influence the paternity of their...

laboratory bioassays were carried out to evaluate the insecticidal efficacy of silicosec? against 7 - 14 day old adults, old and young larvae of tribolium castaneum (herbst) with the mean ? se (n = 30) weight of 3.4 ? 0.1 and 0.6 ? 0.1 mg, respectively at 27?c and 55 ? 5% rh. wheat treated with four dose rates of silicosec? and untreated wheat served as a control with three replications. adult?...

The use of elevated temperatures (> or = 40-60 degrees C) or heat treatments for managing insects in food-processing facilities is a viable alternative to space fumigation with methyl bromide. Quantitative data are lacking on the responses of life stages of the red flour beetle, Tribolium castaneum (Herbst), an important pest of food-processing facilities worldwide, to elevated temperatures use...

We evaluated knockdown caused by four insecticides: alpha-cypermethrin, chlorfenapyr, pirimiphos-methyl and fipronil against adults of Tribolium confusum Jacquelin Duval, the confused flour beetle and Oryzaephilus surinamensis (L.), the sawtoothed grain beetle. Bioassays were conducted on concrete and metal surfaces. Adults of the tested species were exposed on both surfaces treated with the ab...