Farhat, M. G.; Haggag, W. M.; Thabet, M. S.; Mosa, A. A. Efficacy of Silicon and Titanium Nanoparticles Biosynthesis by some Antagonistic Fungi and Bacteria for Controlling Powdery Mildew Disease of Wheat Plants. Int. J. Agric. Tech. 2018, 14, 661-674.