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Production · Protection · Nutrients · Water
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1,513 crop protection pages, pest and disease by crop•98 crops tagged — rice, cotton, sugarcane, mango and more•261 nutrient management pages, deficiency symptoms and correction measures•3,462 data tables preserved from the source pages

Soyabean Disease — Soybean D4

Soyabean

Cercospora leaf blight, leaf spot and Purple seed stain : Cercospora kikuchii

Symptom
Infected leaves appear leathery, dark, reddish purple. Severe infection cause rapid chlorosis and necrosis of leaf tissues, resulting in defoliation. Lesions on petioles and stems are slightly sunken, reddish purple; severe cause defoliation. Later, blighting of young, upper leaves over large areas, even entire fields occur. Management Use healthy/certified seeds. Previous crop debris should be removed. Seed treatment with Thiram + Carbendazium (2:1) @ 3g/kg seed. Use Mancozeb or copper oxychloride at 2.5g/l or Carbendazim 1 g/lit.
  • Infected leaves appear leathery, dark, reddish purple.
  • Severe infection cause rapid chlorosis and necrosis of leaf tissues, resulting in defoliation.
  • Lesions on petioles and stems are slightly sunken, reddish purple; severe cause defoliation.
  • Later, blighting of young, upper leaves over large areas, even entire fields occur.
  • Use healthy/certified seeds.
  • Previous crop debris should be removed.
  • Seed treatment with Thiram + Carbendazium (2:1) @ 3g/kg seed.
  • Use Mancozeb or copper oxychloride at 2.5g/l or Carbendazim 1 g/lit.