Virulence of native strain of Entomopathogenic nematode, Heterorhabditisindica to Galleria mellonella (Lepidoptera: Pyralidae),Helicoverpa armigera(Lepidoptera: Noctuidae) and Spodoptera litura (Lepidoptera: Noctuidae)
Insecticidal and Insect growth regulator activity of a red algal seaweed Gracilaria edulis (S.G.Gmelin) P. C. Silva against Tobacco caterpillar Spodoptera litura Fabricius (Lepidoptera: Noctuidae)