Banana (Musa spp.)

Banana streak disease (Banana Streak Badna Virus)

Symptoms

  • The virus is transmitted mostly through infected planting materials by mealy bugs (Planococcus citri; Saccharicoccus sacchari).
  • Yellow streaking running parallel to the leaf and perpendicular to the leaf veins on the leaves, which becomes progressively necrotic producing a black streaked appearance in older leaves.
  • Chlorotic to dark green streaks also appear on the midrib, petiole and pseudostem.
  • Leaf gets reduced in size, becomes brittle and rolls upward with mosaic mottling.

Management

  • Systematic eradication of the diseased plants, suckers and the clumps is very essential.
  • Planting materials should not be collected from places affected by this disease.
  • The mealy bugs/aphid should be controlled
  • Avoid growing leguminous and cucurbitaceous vegetables as intercrop.
  • Before planting, spread lemon grass in the pits.

Chemical Control

Sl.No Generic Name Trade Name Color code Dosage/litre Knapsack Sprayer (Capacity 10L) Recommendation Remarks
Dosage/acre (200 L) Dosage/hectare (500 L)
1 Dimethoate 30 EC Nugor, Rogor, Tagor, Tara 909 Yellow 2 ml/1 litre of water 20 ml 400 ml 1000 ml
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Extremely Toxic
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Highly Toxic
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Moderately Toxic
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Slightly Toxic