With the reduction of import duty on potatoes, the wholesale price dropped to Rs.110 a kilo in the Colombo wholesale market, the Essential Food and Commodities Importers' and Traders' Association (EFCITA) said yesterday. Earlier, the government had imposed Rs.50 as duty for a kilo of potatoes imported to the country. However, the Finance Ministry halved the amount last week in a move to cushion the rising living costs.