The minimum prices at the Lasalgaon Agriculture Produce Market Committee (APMC) were Rs 101 a quintal. The onions reaching the market now are the summer crop harvested in April and May. They are already four-five months old, of inferior quality and have started sprouting,' said Nanasaheb Patil, director of the National Agricultural Co-operative Marketing Federation of India Ltd (Nafed). Lasalgaon and Kalwan in the district.But continuous rain and high humidity level in July and early August spoiled the crop lying idle for four months. The average prices at the country's largest wholesale onion market on Thursday were Rs 425 a quintal (Rs 4.25 per kg) -lowest since June 11, 2012 when the rates were the same. The maximum prices were, however, Rs 716 per quintal. On August 16 this year, the minimum wholesale prices stood at Rs 150 a quintal..