As we all know agriculture is the combined study of all things i.e., soil science, agronomy, biotechnology, breeding, entomology etc. in this field we have to deal with every aspect of problems. In this paper we have discussed about the species Helicoverpa armigera and its management practices, the species cause many problems and damage the crops by feeding on them, the common name of this pest is cotton bollworm the name itself indicates that it majorly feed on the cotton plant along with chickpea, chilli, tomato, sorghum etc. There are many other practices used to eliminate the pest and insect like by using synthetic or chemical products but there may have some negative effects on soil and plant, to avoid this method one can opt to biological methods like use of parasitoids, predators and entomopathogens. As these methods are very effective and cost very low and along with this they are eco-friendly. In IPM (Integrated Pest Management) biological method plays very important role. In organic farming no chemical products are used for management of pests. This method is also used in USA and other developed countries. There are many species of parasites and predators like various birds which feed on the larva of cotton boll worm, at different stage bollworm feed on the leaves of plant at 1st and 2nd stage the larva of bollworm feed on the reproductive part of plant i.e., flower or flowering bud which cause huge loss of the plant. So, to avoid the loss farmers prefer biological method.