S.M. PAUL KHURANA and B.P. SINGH2, A. KALRA1*, R.K. GROVERI1, N. RISHI1,. 2002. “Effect of Extracts, Leachates and Washings from Potato Virus X Infected Potato Leaves on Aggressiveness of Alternaria Solani”. Indian Phytopathology 53 (1): 10-13. https://epubs.icar.org.in/index.php/IPPJ/article/view/19182.