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        <div>Has anyone tried horticultural vinegar as a spray on this?</div><div><br></div>
        
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                    On Saturday, June 23, 2018, 10:35:33 AM EDT, Marc Imlay <ialm@erols.com> wrote:
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                <div><div id="ydpda05d8f4yiv5143338763"><div><div class="ydpda05d8f4yiv5143338763WordSection1"><p class="ydpda05d8f4yiv5143338763MsoNormal"><b><span style="font-size:18.0pt;font-family:"Arial", sans-serif;color:#1F497D;">In the 200 acre Swann Park in Charles County, there are 3 places where I have seen a pathogen infestation of Japanese Stilt grass. Only one of these sites has been re infested in subsequent years. </span></b><b><span style="font-size:18.0pt;font-family:"Arial", sans-serif;color:#1F497D;">Today I transferred some of the site with an August pathogen infestation of Japanese Stilt grass that  has been re infested in subsequent years to a bad patch of JSG elsewhere in the park with similar habitat. (from the Mattawoman watershed part of Swann Park to the Pomonkey watershed component of Ruth B. Swann Park). I marked the site and will return to check it out each month. </span></b></p><p class="ydpda05d8f4yiv5143338763MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri", sans-serif;color:#1F497D;">  </span></b></p><div><blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt;"><div><div><p class="ydpda05d8f4yiv5143338763MsoNormal"><b><span style="font-size:18.0pt;font-family:"Arial", sans-serif;color:#1F497D;">Let us discuss other ideas to address control of our most difficult invasive plant to control. </span></b><b><span style="font-size:18.0pt;font-family:"Arial", sans-serif;"> One urgent research question is to determine if reduction of deer to the natural level of 20/square mile works as well as deer exclosures in reducing JSG. How can we facilitate research into <span style="color:#1F497D;">native </span>host specific biological controls of JSG<span style="color:#1F497D;">.</span></span></b><b><span style="font-size:18.0pt;font-family:"Arial", sans-serif;"></span></b></p><p class="ydpda05d8f4yiv5143338763MsoNormal"><b><span style="font-size:18.0pt;font-family:"Arial", sans-serif;"> <span style="color:#002060;">Marc Imlay, PhD, Chair, MAIPC Biological control working Group,  </span><span style="color:#1F497D;">MD Chapter Sierra Club Natural Places Chair. </span><span style="color:#002060;"></span></span></b></p><p class="ydpda05d8f4yiv5143338763MsoNormal"><b><span style="font-size:18.0pt;font-family:"Arial", sans-serif;color:#002060;">Conservation biologist, Park Ranger Office, Non-native Invasive Plant Control coordinator. <br>(301) 442-5657 cell  <a href="mailto:ialm@erols.com" title="blocked::mailto:ialm@erols.com" rel="nofollow" target="_blank"><span style="color:#002060;">ialm@erols.com</span></a><br>Natural and Historical Resources Division<br>The  Maryland-National   Capital   Park  and Planning Commission<br><a href="http://www.pgparks.com/" rel="nofollow" target="_blank"><span style="color:#002060;">www.pgparks.com</span></a>  </span></b></p><p class="ydpda05d8f4yiv5143338763MsoNormal" style="margin-left:34.9pt;">  </p></div></div></blockquote></div></div><div id="ydpda05d8f4yiv5143338763DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br>
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