1. UC IPM
Water soaking and necrosis on bean leaves, due to bacterial brown spot caused by <i>Pseudomonas syringae</i> pv. <i>syringae</i>.
Water soaking and necrosis on bean leaves, due to bacterial brown spot caused by Pseudomonas syringae pv. syringae.
Credit: Howard F. Schwartz, Colorado State University, Bugwood.org