I wonder why this year for the first time after 5 years no dig, my onions, I grew from sets, have gone soft with Grey mold on them, in store. I harvested them in the dry weather after all the tops had fallen over. I left them out in the dry air for 24 hours then stored them in a dry barn that has daylight and on a ventilated shelf. It did get warm in the barn on the sunny days. This year I thought, because it was so hot and dry when we harvested, we had a bumper crop, but it is not turning out like that as they are not keeping. The type is early fen and red baron please can any one help?