Integrated Crop Management News

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Due to the recent severe weather and hail occurring throughout Iowa, there are many situations where replanting the crop may be necessary. However, it is important to remember that some herbicides limit replant options. For example, if a cornfield treated with atrazine was destroyed by hail in early June, the only crop options are corn and sorghum, regardless of the atrazine application rate. If a herbicide tank mixture was applied, the most restrictive replant label must be observed. This table lists replant options, time delays for replanting, and approximate herbicide persistence. Always refer to the herbicide label for specific information.

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Iowa State University



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