Lesions along the stems
		and petioles of bean plants caused by the brown spot bacterial pathogen,
		<i>Pseudomonas syringae </i>pv. <i>syringae</i>.

Lesions along the stems and petioles of bean plants caused by the brown spot bacterial pathogen, Pseudomonas syringae pv. syringae.

Photo Source: Lyndon Porter, USDA ARS plant pathologist