The derecho that hit the Midwest Reynolds said early estimates indicate 10 million acres (4 million hectares) have been damaged in the nation’s top corn-producing state and many grain bins were destroyed. That's nearly a third of the roughly 31 million acres (12.5 million hectares) of land farmed in the state sustained damage from the derecho. According to data from the USDA, 23.4 million acres were seeded with corn and soybeans this spring. By early estimates that would mean some 43 percent of Iowa’s 2020 corn and soybean crop has been damaged or destroyed by the violent storm system https://www.foxbusiness.com/money/derecho-iowa-crop-land-farmland-midwest-damage-severe-weather-corn-soybean-disaster-10-million