“Management of Helicoverpa armigera (Hubner) infesting tomato using biopesticides under field condition and its effect on tomato yield” (2020) Journal of the Bangladesh Agricultural University, 18(1), pp. 1–5. Available at: https://banglajol.info/index.php/JBAU/article/view/73204 (Accessed: 30 June 2026).