Sugar traded in New York and London slipped on Wednesday falling towards the weakest levels in three years after an industry report revealed that harvests in Brazil, India and Thailand increased boosting oversupply. Refined sugar for March delivery slid 0.4% to $434.10 per ton as of 12:18 p.m. on the London's NYSE Liffe, while raw sugar expiring in the same month lost 0.1% to 15.95 cents per pound on ICE Futures U.S.