In the last week I've noticed my green beans are getting black streaks on them even before they are big enough to pick. Why?
Round to angular streaks on leaves, reddish brown to black; sunken water-soaked areas on pods; pods shrivels and become watery?
Anthracnose is a fungal disease. Remove and discard infected plants. Avoid working in the garden when it is wet which can result in spread of spores. Keep tools clean.