Angular leaf spot
overwinters in plants and dead leaves, that become the primary source of infection in the spring. The bacteria are also introduced in a crop in new transplants [...] desiccation and can survive well in dry leaves or leaves in the soil, but not independantly in the soil. Under humid conditions, bacteria ooze from the lesions [...] limited by the small veins. The distinctive feature is the way the lesions look when using different light sources: when reflected light is used, the lesions