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| Corn is easily injured by postemerge 2,4-D, and it is weak on buckwheat. Also, don't use more than 12oz/A Atrazine postemerge because of carryover concerns the next year, unless you plan on growing corn on corn. Here is a link to the 2008 ND weed control guide, and it has good info on corn herbicide control ratings on different weeds and rotational restrictions that should be applicable to Canada:
http://www.ag.ndsu.edu/weeds/w253/w253w.htm | |
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RR Corn and Atrazine
