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Agricultural crops :: Pulses :: Blackgram

Yellow Mosaic: Mungbean Yellow Mosaic Virus
Field diagnostic symptoms
  • Yellow patches or spots on leaves and pods
  • Infected plant produce small and distorted pods
  • Early infection causes death of the plant before seed set
Causal agent

Mungbean yellow mosaic virus
  • Single-stranded circular DNA virus (geminivirus), genus Begomovirus
Survival and mode of spread
  • Survival: Weed hosts and other legume crops
  • Spread: Wind-borne viruliferous white fly, Bemisia tabaci
Favourable conditions
  • Summer sown crops
  • Weed hosts viz., Croton sparsiflorus, Acalypha indica, Eclipta alba and Cosmos pinnatus and legume hosts
Integrated disease management
  • Seed soaking with borax @ 2g/kg +10% nochi leaf extract @ 300 ml/kg for 30 minutes followed by seed treatment with imidacloprid 600 FS @ 5 ml / kg of seed
  • Soil application of Bacillus subtilis @ 2.5 kg/ ha with 250 kgs of farm yard manure
  • Border row planting of maize (2 rows)
  • Rogue out virus infected plants upto 25 DAS
  • Installing yellow sticky traps @ 5 Nos. / acre
  • Foliar spray of borax @ 0.1% and nochi leaf extract 10% at 30 DAS
  • Need based spraying of acetamiprid 20 SP @ 250g / ha
Updated on Jun 2023

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