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Plant Pathology
Symptoms and management of Alternaria Blight of Cabbage/Cauliflower
Plant Pathology

Symptoms and management of Alternaria Blight of Cabbage/Cauliflower

Agriculturist Musa March 26, 2020

Contents

  • 1 Symptoms and management of Alternaria Blight of Cabbage/Cauliflower
    • 1.1 Symptoms  of Alternaria Blight of Cabbage/Cauliflower
    • 1.2 Disease Cycle of Alternaria Blight of Cabbage/Cauliflower
    • 1.3 Control Measure/management of Alternaria Blight of Cabbage/Cauliflower

Symptoms and management of Alternaria Blight of Cabbage/Cauliflower

Causal Organism: Alternaria brassicae or   Alternaria brassicicola

Symptoms  of Alternaria Blight of Cabbage/Cauliflower

1.  Yellowing of leaves and dwarf plants.

2.  Dropping lower leaves one by one.

3.  Root infection, Collar region rotten.

4.  The edges of affected leaves become purplish and the base becomes brownish.

Symptoms of Alternaria Blight of Cabbage/Cauliflower 

Disease Cycle of Alternaria Blight of Cabbage/Cauliflower

Disease Cycle of Alternaria Blight of Cabbage/Cauliflower

Control Measure/management of Alternaria Blight of Cabbage/Cauliflower

♦  Seed treatment with Provax 200 @ 3g/kg of seed. 

♦  Foliar spraying with Rubral (2 ml/1 litre of water). 

♦  Crop rotation should be followed. 

♦ Spraying with Redomil  (0.2%) or Dithane M­45 or Cupper oxychloride @ 3­4 g/L of water for 2­3 times at 10­15 days interval. 

♦  Using disease-resistant varieties. 

♦  Crop residues and the alternate hosts should be destroyed. 

♦  Avoid overhead irrigation during head development. 

♦  Control cruciferous weeds. 

♦  Treat seed with hot water.

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Agriculturist Musa

Agriculture is the key development in the rise of sedentary human civilization. As an agriculture student, I want to make a positive footprint in the young agriculturist community through this blog.

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