Cotton bollworm, also known as Helicoverpa armigera, is a major pest of cotton crops worldwide. This insect has a wide host range and can also damage other crops such as corn, tomatoes, and soybeans. It feeds on the reproductive structures of the plant, such as the bolls, causing significant losses in yield and quality. Research on cotton bollworm focuses on developing integrated pest management strategies, including the use of chemical insecticides, biological control agents, cultural practices, and genetically modified crops. Additionally, studies are conducted to understand the biology, behavior, and ecology of the cotton bollworm in order to improve control measures and reduce the economic impact of this pest on agriculture.