MAHAL MS, SINGH R, SINGH B. Sampling plan for estimating nymphal population of white-backed planthopper (Sogatella jurcifera) in rice (Oryza sativa). Indian J Agri Sci. 2013;64(4). Accessed October 29, 2025. https://epubs.icar.org.in/index.php/IJAgS/article/view/29224