Annals of Plant Protection Sciences

A ratio of 4: 2 (chick pea+ intercrops) was significantly/non-significantly more effective than 6: 2 and 8: 2 ratios. In the cropping season of 2011–12, a total of 3.5 larvae/m row were recorded in chick pea + mustard (4: 2) with highest yield of 1003.5 kg/ha compared to 10.6 larvae in sole chick pea at the time of harvesting. Pod damage was 36.2% in chick pea + carrot (4: 2) compared to 58.5% in sole crop. In 2012–13, chick pea + mustard (6: 2) was again effective to lower down larval population to 5.5/m row than to 8.4 larvae in sole chick pea at 150 DAS. Pod damage was 35.2% with highest yield of 1008 kg/ha in chick pea + carrot (4: 2) compared to 53.9% pod damage with yield of 983.6 kg/ha in sole chick pea. In 2013–14, a total of 5.0 larvae/m row were monitored in chick pea + carrot (4: 2 & 8: 2) and chick pea + lentil (8: 2). Yield was 1100 kg/ha in chick pea + carrot (4: 2) cropping system while, 790.5 kg/ha in sole chick pea. Average results of three cropping seasons showed that chick pea + carrot (4: 2) cropping system offered highest yield of 1033.60 kg/ha with 34.8% pod damage compared to other intercrops and chick pea alone. Hence, chick pea + carrot (4: 2) were found to be efficient intercropping system beneficial in lowering down the larval count and increasing the yield over control.