2,4-D is commonly added to glyphosate for burndown of existing vegetation in no-till fields. The advantages of including 2,4-D include:
- better activity on dandelion, horseweed and many winter annual broadleaves than glyphosate alone,
- more consistent than glyphosate during cool conditions, and
- reduces selection pressure for glyphosate resistant horseweed.
Iowa State University
Hartzler, Robert G., "Managing 2,4-D for No-Till Burndown Treatments" (2008). Integrated Crop Management News. 966.
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