Citation | Sattar, M., S. Ali, F.H.G.M. Yar, S. Farooq, M.A. Zeshan, M.U. Ghani, Y. Iftikhar and S. Malik. 2026. Diagnosis and in-vitro management of leaf blackening disease: An emerging threat to cotton crop. Pakistan Journal of Agricultural Research, 39(1): 242-248. DOI | https://dx.doi.org/10.17582/journal.pjar/2026/39.1.242.248