Soybean

Pests and Disease management Yellow Mosaic virus and White fly

Symptoms

  • YMD caused by Mungbean Yellow Mosaic India Virus (MYMIV) is one of the important constraints to soybean in Central India, while Mungbean Yellow Mosaic Virus (MYMV) in South India.
  • Initially small yellow patches or spots appear on young leaves. The yellow discoloration slowly increases and newly formed leaves may completely turn yellow. Infected leaves also show severe mottling and crinkling of leaves.
  • The infected plants normally mature late and bear a very few flowers and pods. The pods are small and distorted. The early infection causes death of the plant before seed set.

Mangement

  • Rogue out infected plants up to 30 days.
  • Use healthy/certified seeds.
  • Keep the field free from weeds.
  • Install Yellow sticky traps - 10/acre for sucking pests’ vector
  • Spray of NSKE @ 5% for management of early-stage larvae of vector.
  • Spray sour buttermilk or dry ginger and cow milk solution 5% (50 ml in litre water)
  • Spray neemastra and brahmastra 40ml/lit water for the control of whitefly pest.