El-Sheikh Aly, M. M., A. H. ElShaer, A. A. Galal, H. M. Abd-Alla, and M. A. Eliwa. “Evaluation of Different Chemicals to Control Erysiphe Betae the Causal Pathogen of Sugar Beet Powdery Mildew”. Journal of Phytopathology and Disease Management, vol. 7, no. 1, Sept. 2020, pp. 91-108, https://ppmj.net/index.php/ppmj/article/view/205.