Due to frequent rains only four days were suitable for field work for farmers in Iowa last week, but the heat and humidity has sped up crop development according to the most recent report from the U.S. Department of Agriculture. In southeast Iowa, 93% of corn is silking, ahead of the state rate of 87% and the five-year average of 69%. Also, locally 20% of the corn crop has reached the dough stage, ahead of the five year average by 12 points. At this time, Iowa’s corn is rated at 14% fair, 59% good and 23% excellent.