Angular leaf spot
spring if it rains or when sprinkler irrigation is used. Healthy, well growing plants are more susceptible than diseased or stressed plants. How to prevent [...] reflected light is used, the lesions look dark green, but when transmitted light is used, they are translucent. When conditions are humid, a viscous bacterial [...] exudate forms on the underside of the leaf. This exudate changes to a white film when it dries. Lesions may merge as they grow and later also become visible