SUGHA SK, TYAGI PD. Effectiveness of metalaxyl + mancozeb against purple blotch (Alternaria porri) of onion (Allium cepa) in Himachal Pradesh. Indian J Agri Sci. 2013;64(2). Accessed July 4, 2026. https://epubs.icar.org.in/index.php/IJAgS/article/view/29060