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Crop Name:  Soybean

Disease Image:  
Disease management in Agriculture
Disease Name:  Alternaria leaf spot
Symptoms:  
  • Appearance of brown, necrotic spots with concentric rings on foliage, which coalesce and form large necrotic areas.
  • Infected leaves later in the season dry out and drop prematurely.
  • Seed become small and shriveled. Dark, irregular, spreading sunken areas occur on the seed.
Management:  
  • Seed treatment with thiram + carbendazium (2:1)@3g/kg seed and Use Mancozeb or copper fungicide at 2.5g/l or carbendazim 1g/lit for spraying after disease occurrence
  • Destroy crop residues from fields.
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