Dayflower in Soybeans

Mark VanGessel, Extension Weed Specialist; mjv@udel.edu

Last fall there was a sample of spreading dayflower brought into the office (http://www.ppws.vt.edu/scott/weed_id/comco.htm). The field was treated once or twice with glyphosate and the plants were not controlled. The grower was concerned about resistance. As it turns out, dayflower is one of those species that glyphosate will not control. FirstRate is the best option for dayflower control in soybeans.

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