Symptoms
Initial symptoms of infection are the formation of small, circular, water-soaked spots on leaves, stems, petioles and/or peduncles; the lesions mature to have white to brown centers surrounded by a brown to red or purple border; as the lesions expand, they may develop a water-soaked outer edge and dark outer ring which gives the lesions a concentric appearance; mature lesions are brittle and cracked in the center; lesions may be between 0.3 and 1.3 cm (0.1–0.5 in) in diameter;
Cause
Fungus
Comments
Cercospora leaf spot is mainly a disease of tropical and subtropical countries and occurs mainly in Africa, South America, Asia and the West Indies. In the U.S. it is found mainly in the southestern states
Management
Cercospora infections are usually minor in pepper and require no treatment; crop debris should be removed and destroyed after harvest or buried in the soil; application of an appropriate fungicide can help to reduce damage if applied early on in the infection; practicing crop rotation reduces the incidence of the disease
👁️ Görüntülenme: 18