After another relatively wet fall, late harvest season, and mild winter, early weed management may be important this spring for those who have persistent issues with winter annuals such as field pennycress and horseweed/marestail in no-till. Winter annuals resume growth soon after the arrival of warm temperatures, so as soon as fields are fit, the weeds will be susceptible to spray.
Iowa State University
Anderson, Meaghan J. B. and Hartzler, Robert G., "Managing Winter Annual Weeds this Spring" (2020). Integrated Crop Management News. 2611.
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