Spodoptera litura Fabricius (Lepidoptera: Noctuidae) is one oft he most destructive worldwide phytophagous pest infesting cotton, vegetable, oilseed and fiber crops [18,19,20].With the widespread use of chemical pesticides and pest resistance problem, the population outbreaks of S.litura had cause considerable economic agricultural losses, and the eco-environment and human being had been impacted by improper use of some pesticides.Microbial insecticides are ideal components of integrated pest management programmes to provide an environmentally safe and sustainable alternative to largely hazardous, broad spectrum and synthetic insecticides