However, stalk rot can impair yields even if plants remain standing. For Fusarium and Diplodia , dry conditions early in the season followed by above average rainfall in mid to late season can predispose the plants to stalk rot. For anthracnose, high temperature and high relative humidity in mid to late season are very favorable to stalk rot development. At present there are no weather-based models for use as decision aids in managing these diseases. There are no fungicides currently labeled for use in Nebraska specifically for the management of stalk rots caused by Fusarium , Gibberella , Diplodia and Colletotrichum .
Fungicides help manage stalk rot indirectly through their use to treat foliar diseases.
Web Sites Several Web sites provide additional information on corn stalk rot and images of symptoms associated with the various stalk rot diseases. Kenneth R. Bolen, Director of Cooperative Extension, University of Nebraska, Institute of Agriculture and Natural Resources.