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stages <br />Spring rosette to early -bolt growth <br />Transline 2/3 - 1 pint/ac stages <br />Leafy spurge Tordon 1 qt/ac Fall 1 month after last mowing <br />Tordon + 2,4-D 0.5 - 0.75 + 1 qt/ac Fall 1 month after last mowing <br />Vanquish/Clarity 1 qt/ac Fall 1month after last mowing <br />Musk thistle Curtail <br />dicamba <br />picloram <br />Russian knapweed Curtail <br />picloram <br />Spotted knapweed <br />Yellow toadflax <br />Saltcedar <br />0.25 Ib ai/ac Spring 10-14 days before bolting <br />1 Ib ai/ac Spring 10-14 days before bolting <br />Fall, apply to rosettes when other plants <br />0.25 Ib ai/ac are dormant <br />Fall on dormant plants, need to reseed <br />during following year <br />1 Ib ai/ac Anytime <br />picloram 1 Ib ai/ac <br />dicamba or 2,4-D 1 Ib ai/ac <br />picloram or <br />dicamba <br />imazapyr <br />imazapyr or <br />triclopyr <br />imazapyr or <br />triclopyr <br />1 Ib ai/ac <br />Anytime <br />Spring during flowering <br />Late summer early fall foliar application <br />To resprouted stems <br />To perimeters of cut stems immediately <br />after cutting <br />Sources: Colorado Natural Areas Program. 2000. Creating an Integrated Weed Management Plan. <br />http://parks.state.co.us/cnap, and Colorado State University Cooperative Extension. No date. <br />Weed Management for Small Rural Acreages. No. 3.106. <br />hftp://www.ext.colostate.edu/PUBS/Natres/03106.html