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Canada Thistle Control Page 1 of 1 <br />CONTROL METHOD RECOMMENDATION <br />Note: Improving the conditions and competition of desirable grasses and vegetation <br />is the best defense against noxious weeds. Avoiding waste azeas, overgrazing, disturbe <br />ground and proper care of existing vegetation, will aid in keeping noxious weeds awa} <br />KEY: Be PERSIS'I'ANT! A Perennial requires multiple years of control. <br />SPRING SUMMER FALL <br />Chemical <br />during Eazly flower Mowing Chemical <br /> <br />bud stage Flower Stage when actively growing <br />Since there is not a suitable (lazge) site of Canada Thistle for Biological <br />Control Agents, Douglas County Weed Control will not accept these agents <br />as a control method. In the case of a suitable infestation, we are open to <br />investigating the release of these Agents. <br />Back to Canada Thistle Page <br />http://www.co.douglas.ne.us/depUenvserv/ctcontrol.htm 11 /25/2005 <br />