(Dow Jones) -- Farmers in the upper Midwest are used to dealing with drought, disease and pests. Now, they are grappling with a different problem: a propane shortage.
Unusually heavy rains have left corn from this year's bumper harvest soggier than normal. Farmers are struggling to acquire enough propane to fuel the giant, oven-like machines that dry corn before it is stored to prevent rot.
The dash for the gas has helped send U.S. domestic propane prices to an 18-month high and is slowing the corn harvest, already delayed because of wet weather during planting.
The propane shortage is keeping ...