Ragi (Eleusine coracana)

Mosaic (Potyvirus)

Vector: Cicadulina bipuntella, C. chinai

Symptoms

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  • Irregular light and dark green or yellow patches or streaks on the leaf and floral parts.
  • Initial symptoms appear in funnel leaves as small sparse chlorotic specks.
  • Later the specks coalesce leading to short streaks.
  • Yellowing of plants in severe infection.
  • Failure of earhead emergence with sparse grains is noticed during initial and late infection.

Chemical Control

Sl.No Generic Name Trade Name Color code Dosage/litre Knapsack Sprayer (Capacity 10L) Dosage/acre (200 L) Dosage/hectare (500 L)
1 Dimethoate 30 EC Nugor, Rogor, Tagor, Tara 909 Yellow

1.5 ml/1 litre of water 15 ml 300 ml 750 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