By Isis Almeida Bloomberg August 1, 2012 Harvesting of arabica coffee in Brazil , the world’s largest producer, will end a month later this year after rainfall delayed the start of the crop, according to Cepea, a University of Sao Paulo research group. Above-average rainfall in growing regions in June delayed the start of the 2012-13 harvest and reduced the quality of beans. Dry weather in the past 10 days has helped accelerate pickings, Marco Antonio dos Santos, an agronomist at Sao Paulo- based weather forecaster Somar Meteorologia, said in a report e- mailed yesterday. More dry weather is forecast through Aug. 12, according to the report. “Players surveyed by Cepea expect fieldwork to continue until September, at least, delaying about a month in relation to the 2011 season,” Margarete Boteon, an analyst at the researcher, said in a report yesterday. “From now on, players expect the harvesting to step up because of the drier weather.” About 48 pe...