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Table -E -5 Recommended 'Herbicide Application Table <br />Weed Species <br />Herbicide <br />Application Rate' <br />Application Time <br />Canada thistle <br />Curtail <br />2 -3 qt/ac <br />October or.1 mo after last mowing <br />Clopyralid <br />2/3 - 1 pint/ac <br />Spring or fall, during rosette to bud <br />growth stages in spring <br />2,4 -D <br />1 l ai /ac <br />Spring prebud to early early bud <br />growth stages <br />picloram <br />1 l ai /ac <br />Spring prebud to early early bud <br />growth stages <br />Dalmation toadflax <br />picloram <br />0.5 -1 lb ai /ac <br />Fall <br />picloram + 2,4 -D <br />Pre -bloom or fall <br />Diffuse knapweed <br />Tordon <br />1 pint/ac <br />Spring rosette to early -bolt growth <br />stages <br />Banvel/Vanquis <br />h /Clarity + 2,4 -D <br />-0.5 + 1 qt/ac <br />Spring rosette to early -bolt growth <br />stages <br />Curtail <br />2 -3 qt/ac <br />Spring rosette to early -bolt growth <br />stages <br />Transline <br />2/3 -1 pint/ac <br />Spring rosette to early -bolt growth <br />stages <br />Leafy spurge <br />Tordon <br />1 qt/ac <br />Fall 1month after last mowing <br />Tordon + 2,4 -D <br />0.5-0.75+1 <br />qt/ac <br />Fall 1 month after last mowing <br />Vanquish /Clarity <br />1 qt/ac <br />Fall 1month after last mowing <br />Musk thistle <br />Curtail <br />0.25 lb ai /ac <br />Spring 10 -14 days before bolting <br />dicamba <br />1 lb ai /ac <br />Spring 10 -14 days before'bolting <br />picloram <br />0.25 lb ai /ac <br />Fall, apply to rosettes when other <br />plants are dormant <br />Russian knapweed <br />Curtail <br />Fall on dormant plants, need to <br />