Abstract

• This study investigated the nymphal period of adulthood, maturation, and the reproductive performance of Pariplaneta. americana and Pacoblatta lata, which were reared with three types of diets. The results revealed the durations of nymphal development were varied with the different food diets. A shorter duration for the development of cockroaches from the 2nd stage to the 3rd stage by feeding rice bran and sawdust followed by cat food and dog food in American cockroaches, whereas from the 3rd stage to the adult shorter duration by feeding dog food. Similarly, it has a shorter duration of development by feeding rice bran and sawdust, followed by dog food and cat food in wood cockroaches. A similar duration was recorded in P. lata for the development from the 3rd stage to the adult. The pre-ovulation period among the different diet treatments showed that dog food was the most effective with a shorter duration for maturity case in both cockroach species. In P. americana, their feeding preference was a highly significant difference among the diets. The feeding on different diets was not changed in different life stages, and their developmental stages in wood cockroaches. Therefore, suitable diets for survival and development were different between P. americana and P. lata.