What are the damage symptoms of leaf miner in groundnut?

The leaf miner is also one of the major pests of importance on groundnut crop all over India especially when raised under rainfed conditions. Bunch variety is generally severely infested. The larva mines into tender leaflets or it webs together adjacent leaflets and feeds on the tissue. The leaflets get distorted and due to feeding get dried up in course of time. In a very severely infested crop, the whole field presents a burnt-up appearance and the small adults could be seen flying in large numbers when one walks through the crop. The loss in yield of pods is also considerable.