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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><strong><span style='font-size:12.0pt;font-family:"Arial",sans-serif;color:blue'>Let's all look for leaf blight on Japanese Stiltgrass this Summer. Question? The three locations where I found leaf blight on Japanese Stiltgrass in the 200 acre Ruth Swann Park in Charles County MD in the past few years, including one significant size patch, all had the native Virginia Rye nearby. What native plants could be a source of Bipolaris?<o:p></o:p></span></strong></p><p class=MsoNormal><strong><span style='font-size:12.0pt;font-family:"Arial",sans-serif;color:blue'><o:p> </o:p></span></strong></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif;color:blue'>Marc Imlay, PhD, Chair, MAIPC Biological control working Group <o:p></o:p></span></b></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif;color:blue'>Conservation biologist, Park Ranger Office, Non-native Invasive Plant Control coordinator. <br><a href="tel:%28301%29%20442-5657" target="_blank">(301) 442-5657</a> cell  </span></b><span style='font-size:12.0pt;font-family:"Arial",sans-serif'><a href="mailto:ialm@erols.com" target="_blank">ialm@erols.com</a><br><b><span style='color:blue'>Natural and Historical Resources Division<br>The  Maryland-National   Capital   Park  and Planning Commission<br></span></b><a href="http://www.pgparks.com/" target="_blank" title="blocked::http://www.pgparks.com/ blocked::http://www.pgparks.com/ blocked::blocked::blocked::http://www.pgparks.com/ blocked::blocked::http://www.pgparks.com/ blocked::http://www.pgparks.com/ blocked::http://www.pgparks.com/ blocked::blocked::blocke"><b><span style='text-decoration:none'>www.pgparks.com</span></b></a><span style='color:blue'>  </span><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> Marc Imlay [mailto:ialm@erols.com] <br><b>Sent:</b> Thursday, February 27, 2014 4:05 PM<br><b>To:</b> 'Murphy, Donna M -FS'<br><b>Subject:</b> FW: Feb 28th webinar @ 9:00 am - 15 minutes and questions<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman",serif'> <o:p></o:p></span></p></div><div><h3 style='mso-margin-top-alt:12.0pt;margin-right:0in;margin-bottom:3.0pt;margin-left:0in;line-height:115%'><span style='font-size:12.0pt;line-height:115%;color:black'>Japanese stiltgrass<o:p></o:p></span></h3><p class=MsoNormal style='line-height:115%'><b><span style='font-size:12.0pt;line-height:115%;font-family:"Cambria",serif;color:black'>The annual grass Japanese stiltgrass (<i>Microstegium vimineum</i>) can be highly invasive, especially on disturbed sites, and it is currently widely distributed in the eastern U.S.  In Oak Ridge National Environmental Research Park, Tennessee, Japanese stiltgrass was ranked the most aggressively invasive nonnative species, based on distribution, abundance, relative difficulty of control, and ability to exclude native plant species (Fryer 2011).  Two species of <i>Bipolaris</i> have been described as cause of leaf spots and necrosis of Japanese stiltgrass in the Eastern U.S.; some evidence is that disease may be suppressing local populations.  Host range of these species has not been fully tested, although limited symptom development was reported on a few important grass (grain) species in artificial tests (Kleczewski et al. 2012).  Research is on-going about this pathogen(s), its host, and the potential for use in biological control of Japanese stiltgrass. If you</span></b><b><span style='font-size:12.0pt;line-height:115%;font-family:"Times New Roman",serif;color:black'> see leaf blight </span></b><b><span style='font-size:12.0pt;line-height:115%;font-family:"Cambria",serif;color:black'>on Japanese stiltgrass during the growing season please contact work group member William L. Bruckart, III.<o:p></o:p></span></b></p><p class=MsoNormal style='line-height:115%'><b><span lang=EN style='font-size:12.0pt;line-height:115%;font-family:"Cambria",serif;color:black'>Research Plant Pathologist</span></b><b><span lang=EN style='font-size:12.0pt;line-height:115%;font-family:"Cambria",serif;color:black'><o:p></o:p></span></b></p><p class=MsoNormal style='line-height:115%'><b><span lang=EN style='font-size:12.0pt;line-height:115%;font-family:"Cambria",serif;color:black'>USDA, ARS, Foreign Disease-Weed Science Research Unit (FDWSRU)</span></b><b><span lang=EN style='font-size:12.0pt;line-height:115%;font-family:"Cambria",serif;color:black'><o:p></o:p></span></b></p><p class=MsoNormal style='line-height:115%'><b><span lang=EN style='font-size:12.0pt;line-height:115%;font-family:"Cambria",serif;color:black'>1301 Ditto Ave.</span></b><b><span lang=EN style='font-size:12.0pt;line-height:115%;font-family:"Cambria",serif;color:black'><o:p></o:p></span></b></p><p class=MsoNormal style='line-height:115%'><b><span lang=EN style='font-size:12.0pt;line-height:115%;font-family:"Cambria",serif;color:black'>Ft. Detrick, MD 21702</span></b><b><span lang=EN style='font-size:12.0pt;line-height:115%;font-family:"Cambria",serif;color:black'><o:p></o:p></span></b></p><p class=MsoNormal style='line-height:115%'><b><span lang=EN style='font-size:12.0pt;line-height:115%;font-family:"Cambria",serif;color:black'>Phone: 301/619-2846</span></b><b><span lang=EN style='font-size:12.0pt;line-height:115%;font-family:"Cambria",serif;color:black'><o:p></o:p></span></b></p><p class=MsoNormal style='line-height:115%'><b><span lang=EN style='font-size:12.0pt;line-height:115%;font-family:"Cambria",serif;color:black'>FAX: 301/619-2880</span></b><b><span style='color:black'> <o:p></o:p></span></b></p><div><p class=MsoNormal style='margin-bottom:10.0pt;line-height:115%'><b><span style='color:black'><a href="mailto:william.bruckart@ars.usda"><span style='font-family:"Times New Roman",serif'>william.bruckart@ars.usda</span></a></span></b><b><span style='font-family:"Times New Roman",serif;color:black'>.gov<o:p></o:p></span></b></p></div><p class=MsoNormal style='line-height:115%'><strong><span style='font-size:12.0pt;line-height:115%;font-family:"Cambria",serif'><o:p> </o:p></span></strong></p></div><h3 style='mso-margin-top-alt:12.0pt;margin-right:0in;margin-bottom:3.0pt;margin-left:0in'> <o:p></o:p></h3></div>
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