Storage in modified atmosphere: an efficient technique to prevent the infestation of Caryedon serratus olivier in stored groundnut

The data pertaining to the studies on the effect of modified atmosphere with elevated levels of CO₂ on pod damage of stored groundnut was indicated that except 10 per cent CO₂ concentration all the remaining concentrations of co₂ viz., 20, 30 and 40 did not record any pod damage even after six months of treatment. Exposure of pods to low concentrations of 10% CO₂ treatment though protected the seed up to 3 months but after six months infestation increased and went upto 50.79% pod damage and 43.1% seed damage after nine months. However the normal air treatment recorded 58.49 and 68.97 per cent pod and seed damage respectively. Besides 2.33 live larvae and 6.67 live pupae were observed as against 0.71 and 1.50 in the 10% co₂ concentration respectively.