Iowa State University recommends using EPP or PRE herbicides in Soybeans

A recent article published in Integrated Crop Management, Iowa State University researchers recommend the use of early preplant (EPP) or preemergence (PRE) herbicides in soybean weed management programs.  The importance of these herbicides is that they allow better time management in the spring, a longer window of opportunity to make POST applications, better stewardship, and improved profitability.  Plus, it simultaneously works as a way to manage glyphosate resistance in weeds, so the article points out that using EPP or PRE herbicides is a way to ultimately increase profitability while slowing the evolution of resistant weed populations.

A related story from the University of Missouri quantifies the economic loss associated with glyphosate-resistant weeds by asking the question, "Do I pay a slightly higher price today for weed management strategies that delay or prevent glyphosate resistance or do I pay a much higher price in the future when a glyphosate-resistant weed requires me to use more expensive control measures?"

How are the biggest factors contributing to your herbicide management choices? Where does potential yield loss from competing weeds rank?