Leaf Blight Diseases of Potato . Early blight is often more severe when the potato crop has been under stress of poor nutrition, injury, insect damage, drought, or other types of stress. .
Potato Early Blight fact sheet VEGETABLE CROPS. Potato Early Blight (Alternaria solani Sorauer). . INTRODUCTION. Early blight (EB) is a disease of potato caused by the fungus Alternaria solani. .