Foliar Diseases
Management of foliar diseases such as Anthracnose, Downy mildew, Cercospora leaf spot, and Gummy stem blight may require fungicide sprays. Fields should be monitored at least weekly for the early detection of disease. Late-planted fields are most vulnerable to foliar diseases. Spray programmes should be initiated shortly after the first appearance of disease or beginning at flowering to prevent disease in late plantings. A 14-day schedule has been effective in most instances, although a 7-day schedule may be required where downy mildew is severe.
Management of foliar diseases such as Anthracnose, Downy mildew, Cercospora leaf spot, and Gummy stem blight may require fungicide sprays. Fields should be monitored at least weekly for the early detection of disease. Late-planted fields are most vulnerable to foliar diseases. Spray programmes should be initiated shortly after the first appearance of disease or beginning at flowering to prevent disease in late plantings. A 14-day schedule has been effective in most instances, although a 7-day schedule may be required where downy mildew is severe.