Source: Mark Loux, Bill Johnson, Ohio State University

Wet weather and delayed planting has several effects on no-till burndown programs, especially in soybeans. First, the weeds get bigger and what is a relatively tame burndown situation in April can become pretty hairy by the first two weeks of May. With this and the price of glyphosate in mind, the rate of glyphosate in any glyphosate-based burndown treatments should be increased, preferably to 1.5 lbs ae/A. Second, in the rush to plant when it finally dries out, it can be difficult to keep 2,4-D in the burndown mix and wait yet another 7 days to plant soybeans. A review of the soybean burndown options for this situation follows. 

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