The past week I received several calls concerning waterhemp that was just beginning to break through the soybean canopy. The callers were wondering whether it is worth making another application for these weeds; the answer is "no." They also wanted to know what would be the best option for control, but there aren't any.
Iowa State University
Hartzler, Robert G., "Waterhemp breaking through soybean canopy" (1999). Integrated Crop Management News. 2239.
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