ABSTRACT
Symptoms Diseased seedlings are often killed or stunted at high temperatures. Initially, small, water-soaked spots appear as chlorotic areas on leaets. The spots enlarge to irregular-shaped lesions (2-3 mm in diameter) with chlorotic margin that are pronounced on the underside of leaets (Photo 11.1). Eventually, the lesions become light yellow to tan, often with a lighter center, and have a translucent, papery texture. Lesions often glisten because of the dried bacterial exudates on their surface. Diseased leaves defoliate prematurely. Stem lesions are water soaked initially, and then they turn brown or black.
