Local farmers have suffered six-figure losses because of extreme downpours since May, with a farm in northern Hong Kong flooded for seven hours during heavy rain on Sunday.Leung Yat-shun of Shun Sum Yuen farm in Yuen Long said on Monday that efforts to grow tens of thousands of sunflowers had been a washout since May, with precipitation in July alone having already surpassed typical levels by 23 per cent.“This year has dealt a severe blow to the farming industry,” Leung said. “It has been a...