Stalk Rot and Lodging in the 2000 Corn Cop

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Proceedings of the Integrated Crop Management Conference

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Gary P. Munkvold
Iowa State University
conference paper description
Many experienced observers indicated that stalk rot and lodging in the 2000 season were the worst they have seen in over 20 years in Iowa. These observations are difficult to verify without an objective survey, but most would agree that lodging was more severe and widespread than usual in 2000. One of the complications in assessing the situation is that lodging and stalk rot are not always equivalent. In some years, there is a lot of stalk rot with little lodging, simply because the windy weather does not come at the right time to cause the lodging. And not all lodging is due to stalk rot. In this article I will discuss some of the factors that contribute to stalk rot and lodging, and place them in the context of the 2000 season.