SUGHA, S K, and P D TYAGI. 2013. “Effectiveness of Metalaxyl + Mancozeb Against Purple Blotch (Alternaria Porri) of Onion (Allium Cepa) in Himachal Pradesh”. The Indian Journal of Agricultural Sciences 64 (2). https://epubs.icar.org.in/index.php/IJAgS/article/view/29060.