Farmers will soon head out to plant, and many will be thinking about the derecho  that swept across the state last August. Iowa State University extension agronomist Mark Licht says he expects farmers in many derecho-affected areas where corn was planted will be switching to soybeans this spring. That’s because the herbicides farmers will use to kill that unproductive volunteer corn won’t kill the soybeans.

The August 10th derecho was the most damaging thunderstorm in United States’ history, causing more than 13-billion dollars damage, most of it in the state of Iowa.