D. K. DAS, T. P. TRIVEDI, and S. P. SHRIVASTAVA, “Simple rule to predict attack of Helicoverpa armigera on crops growing in Andhra Pradesh*”, Indian J Agri Sci, vol. 71, no. 6, Apr. 2014, Accessed: Oct. 26, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/39900