EN
Tribolium confusum is one of the most frequently occurring insects and it is considered very harmful because it destroys stored products. It is especially destructive to cereal grains and foodstuffs although it also damages other products. In the present studies, the susceptibility of 4 cereal species (spring wheat, winter wheat, millet, maize) to the confused flour beetle feedings was established based on selected parameters (number of 2nd generation beetles, product weight loss, and amount of powder remaining after a feeding). The grains of maize appeared to be the best substrate for the confused flour beetle’s development. On maize, the number of progeny, the weight loss of grain, and the amount of powder remaining were the highest. Millet grains, in contrast, were the worst environment for the development of T. confusum. It is very likely that the differences in cereal susceptibility were due to the different structure of grains (e.g., the size of the embryo, and the hardness of the grain coat).