SUN BIO SLNPV is bio insecticide for managing leaf eating caterpillar Spodoptera litura which is polyphagus pest feeding on the foliage in the nursery and in fields. This pest attacks on Cotton, Pomegranate, Soybean, Groundnut, Rose, Cabbage, Cauliflower, Chili, Tobacco, Sunflower, Potato, Okra, Castor, Marigold etc. On hatching, clusters of young larvae feed gregariously by initially scraping the surface of the leaf. Later instars disburse and move on to other leaves and feed voraciously, producing large irregular holes and may leave only the veins. After spraying of SUN BIO SLNPV these caterpillars gets infected by the virus which eventually kills them.