Effects of varying amounts of selected spices namely Hot pepper, Black pepper, Sweet basil, African Nut-meg and Ginger against the development of adults of Hide beetle, Dermestes maculatus, was studied under ambient conditions. The plant spices were pulverized into powders and applied as 1.0, 2.0 and 3.0 g per 25 g of dry fish along with 5ml of conventional pesticide Dichlorvos. Five pairs of newly emerged adults of Hide beetle were inoculated into each of the beakers, which were then arranged in a Complete Randomized Design (CRD) in the laboratory. The Black pepper was observed to be highly effective causing longest delay in oviposition (6.67 – 9.33days) and Ginger resulted in least delay (5.00 -6.00days) still significant if compared to untreated ones. Females fed on fish treated with Sweat basil powder had shortest oviposition period of 26.00-0.00 days followed by Black pepper, Pepper fruits., African Nut-meg and Ginger with longest duration of 42.00 – 38.00 days, all significant (P<0.05) when compared to control. The fecundity of female was also significantly affected by varying amounts of the spices. The Sweet basil was observed to be the most effective spice resulting in least fecundity (125.00 – 0.00) while Ginger resulted in highest fecundity (749.67 - 372). All tested spices thus drastically shortened the life span of adults with significance differences. These results have shown that tested spices demonstrated protective ability against adults hide beetle and confirm the activities of these plant powders.