What Is Siderosis?

Dendrobium rust is one of the diseases of the Orchidaceae family. After the invasion of pathogenic bacteria, the back surface of the leaves of Dendrobium swelled many iron-brown protrusions with the size of sesame seeds. Spores, spores flutter in the wind, and repeatedly infect other plants of Dendrobium. When the damage is serious, the stems and leaves die, and the peak period of disease is from July to August.