MOHD. AKRAM, S.I.H. and (2002) “Distribution pattern and identity of powdery mildew of composites in the districts of Agra division”, Indian Phytopathology, 50(2), pp. 250–255. Available at: https://epubs.icar.org.in/index.php/IPPJ/article/view/19819 (Accessed: 5 June 2026).