Black Rot Disease in Cabbage crop

Measures to Control Black Rot Disease in Cabbage crop

  • Black rot of cruciferous vegetables: This disease is caused by the bacterium Xanthomonas campestris pv. campestris and affects a wide range of cruciferous crops, including cabbage, broccoli, cauliflower, kale, and turnips. Symptoms include yellowing and wilting of leaves, blackening of veins, and stunting of growth.
  • Black rot of grapes: This disease is caused by the fungus Guignardia bidwellii and affects grapevines. Symptoms include black spots on leaves, stems, and fruit, which can eventually lead to defoliation and fruit rot.
  • Black rot of apples, pears, and quinces: This disease is caused by the fungus Botryosphaeria obtusa or Physalospora cydoniae and affects apple, pear, and quince trees. Symptoms include cankers on branches, dieback, and blackening of fruit.
    • Black Rot Disease in Cabbage crop
    • Type of Infestation: bacterial Disease
    • Common Name:  Black Rot
    • Causal Organism: Xanthomonas campestris
    • Affected Parts Of the plant: Leaf, Stem, Head, Root

    Environmental favorable factors for pests/Diseases:

    • Temperature: Warm temperatures, specifically between 25-30°C (77-86°F), favor the growth and activity of the Xanthomonas campestris pv. campestris bacteria responsible for black rot.
    • Humidity: High humidity and frequent rainfall create ideal conditions for the bacteria to spread. Water droplets splashing from infected leaves to healthy ones can easily transmit the disease 

    Symptoms of Pest/Disease:

    • V-shaped yellow or brown lesions on the leaves, starting at the edges and moving inwards
    • Blackening of the veins in the infected leaves
    • Wilting and stunting of the plants
    • Head decay in severe cases

    Measures to control Pests/Diseases:

    Products Technical Names Dosages
    striker Pseudomonas Fluorescens Bio Fungicide Powder 5 kg per acre
    coc 50 Copper oxychloride 50 % wp 2gm/ltr
    kmycin Streptomycin Sulphate 90% + Tetracycline Hydrochloride 10% 6 grams in 60 Liter water
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