Control of Brown Stripe Downy Mildew of Maize by Metalaxyl. Sangam Lal, Department of Plant Pathology, G. B. Pant University of Agriculture and Technology, Pantnagar, India. S. C. Saxena, and R. N. Upadhyay, Department of Plant Pathology, G. B. Pant University of Agriculture and Technology, Pantnagar, India. Plant Dis. 64:874-876. Copyright 1980 American Phytopathological Society. DOI: 10.1094/PD-64-874.

Seed treatment with metalaxyl at 4 g/kg controlled brown stripe downy mildew (Sclerophthora rayssiae var. zeae) of maize up to 30 days after planting. When combined with seed treatment, one foliar application of metalaxyl (225 ppm) on the 30th day after planting resulted in excellent disease control and increased grain yield and 1,000 kernel weight.