BHARPODA, T M, H P PATEL, J J PATEL, USHA PATEL, G P PATEL, and J R PATEL. “Evaluation of Economic Threshold Levels for Helicoverpa Armigera on ’H 6’ Cotton (Gossypium Hirsutum) in Central Gujarat Region”. The Indian Journal of Agricultural Sciences 69, no. 4 (January 24, 2013). Accessed October 25, 2025. https://epubs.icar.org.in/index.php/IJAgS/article/view/26711.