Abstract :
Choice and non-choice tests were carried out to determine the varietal preference of the red flour beetle Tribolium castaneum (Herbst) under laboratory conditions. Regarding to non-choice tests on different wheat varieties , data revealed that, Sakha 93 and Shandweel were the most preferred wheat varieties, while Seds 12 was the least preferred wheat varieties. On the other hand, Sakha 105 was the most preferred rice variety, while Giza 181and Giza 177 were the least preferred rice varieties. In respect to free choice tests on different wheat varieties, the results indicated that, Sakha 93 and Shandweel were the most preferred wheat varieties, while Seds 12 was the least preferred wheat varieties. On the other hand, Sakha 105 was the most preferred rice variety, while Giza 181, Giza 177 and Egyptian jasmen were the least preferred rice varieties.
