Brono-L is herbal insecticide.Brono-L is neurotoxic or ovicidal in actionable insects.Brono - L is useful for cotton bollworm (Helicoverpa amigera), tobacco caterpillar (Spodoptera litura) spotted bollworm (Erias vitella), pink bollworm (Pectinophora gossypiella) and other caterpillars etc.