#Cotton_Diseases #Short_Notes 1. Bacterial blight/angular leaf spot/black arm: Xantomonas campestris ;pv. malvacearum Most serious disease of cotton in India Angular and water soaked lesion on leaf & stem. On the stem develops peripheral cracks called black arm. Management: Spray a mixer of Streptocyclin + Copper oxychloride @ 50 + 250 g/ha Seed treatment with Agrimycine 2. Tirak/bad opening of bolls: Physiological disorder Premature defective opening of bolls & shedding of leaves Management: Follow late sowing Apply extra water at flowering & fruiting in sandy soil. 3. Fusarium wilt: F. monilliforme f. sp. vasinfectum. 4. Stenosis/small leaf: Viral 10.0K views07:14
