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Turmeric diseases – Kisan Suvidha
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Turmeric diseases

turmeric diseases

Turmeric diseases

Major turmeric diseases are:-

1.Turmeric Leaf spot: Colletotrichum capsici

 

turmeric leafspot

Symptom:
  • In affected leaves, elliptic or oblong spots with a yellow halo are seen.
  • The centre of spots are greyish white and then with numerous black dots in centre
  • As the disease advances, the leaves dry up and give a scorched appearance.
Management:
  • Field sanitation
  • Spray with Mancozeb 0.25% or copper oxy chloride 0.25% immediately after the appearance of symptom and at 15 days interval

 

2.Turmeric Leaf blotchTaphrina maculans

turmeric leaf blotch

Symptom:
  • The spots of 1-2mm diameter appear in more numbers, covering both sides of the leaf.
  • The attacked leaf presents a reddish brown appearance instead of the normal green colour.
  • These spots coalesce to form irregular bigger patches.
Management:
  • Field sanitation
  • Spray with Mancozeb 0.25% or copper oxy chloride 0.25% immediately after the appearance of symptom and at 15 days interval.

 

3.Turmeric Rhizome rot: Pythium aphanidermatum

turmeric rhizome rot

Symptom:
  • In infected plants, basal portion of the shoots appears watery and soft.
  • The root system is very much reduced
  • The leaves exhibit gradual drying along the margin
  • Infected rhizomes soft, rotted, colour changes into different shades of brown
Management:
  • Use disease free planting material
  • Providing good drainage facilities
  • Rhizome dip in copper oxy chloride or zineb (0.3%) for 30 minutes before planting
  • Soil drenching with copper oxy chloride (0.25%) in and around affected plants
  • Soil application of Pseudomonas fluorescens talc formulation (2.5 kg/ha)

 

 

Source-

  • TamilNadu Agritech Portal

 

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