Identification symptoms
- These appear sporadically
     in enormous populations cause heavy damage to the foliage.
- Caterpillars are
     gregarious in habit and they congregate on the trunks of shade trees
     during day time and drop down on the cardamom plants during night time.
- They feed voraciously
     on leaves defoliating the whole cardamom plants.
- Usually the damage is
     observed during October-December