and N.A. KHAN, T.R. RATHER*, Z.A. BHAT. “Evaluation of Fungicides and a Biocontrol Agent Against Powdery Mildew Disease of Apple”. Indian Phytopathology, vol. 68, no. 4, Dec. 2015, http://epubs.icar.org.in/index.php/IPPJ/article/view/54629.