Last week’s cold temperatures and snow delayed cover crop termination, but it’s important not to rush corn planting, Iowa State University (ISU) Extension specialists said last week. Studies continue to show waiting up to two weeks to plant after terminating rye cover crops reduces the risk of corn seedling diseases and potential yield losses. 

A trial at ISU research farms last year showed corn planted 14 days after cover crop termination produced similar yields to a check strip with no cover crops, Extension cropping systems specialist Mark...