You are about to enter a world of plant diseases. Here you will learn what plant disease is, who the major parties in disesae development are, what the principal causal agents are, how diseases get started, progress and what kinds of signs and symptoms they may produce, finally and most importantly, how to diagnose and control them.

• Administrator: Patrick Beach
• Administrator: John Lea-Cox
• Administrator: David S. Ross
• Administrator: Cindy Zhao