The results of this study indicate that there are differences in the types and relative amounts of phosphine-sensitive and resistant Tribolium castaneum(Herbst) pheromone. The GC-MS results of both indicate that may contain the two reported aggregation pheromones of 4,8-dimethyldecanal and 1-pentadecene;Phosphine-resistant Tribolium castaneum(Herbst) are more sensitive Tribolium castaneum(Herbst) than the erythromycins: 1-hexadecene, 1,3-diisopropylnaphthalene and 2,4-diisopropylnaphthalene,lack of two pheromones, trans-decahydronaphthalene and (Z)-7-hexadecenal. In the comparison of the relat...