Corn following corn increases the risk of foliar diseases, especially under no-till conditions. Inoculum surviving on corn residue from the previous crop spreads to the subsequent corn crop, resulting in higher spore loads. If corn follows corn in no-till conditions and the hybrids are susceptible to foliar dieases, then a foliar fungicide is warranted.
For more information on this or other topics related to corn production, contact your state extension corn specialist or your local extension educator/agent.
The following is the link to the corn extension specialists: state extension corn specialist
