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Government Of Assam Handloom Textiles & Sericulture Directorate of Sericulture

Diseases of Silkworm


The incidence of Muscardine in muga silkworm is occasional but when it occurs, there is chance of complete crop failure. 60-70% Muga silkworm infected mainly in Aghenua crop (in winter season December- March)

Casual Organism: Beauveria sp

It is a fungal disease. Both white and green muscardine are prevalent in muga silkworm


Infected larvae become swollen, body hardens after death, become stiff, chalky and mummified within 24 hours.

Control measures:

  1. Disinfection of rearing field before rearing.
  2. Cultural operation
  3. Collect the diseased worms and burn them far away from rearing plot.