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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b><span style='font-size:14.0pt;color:red'><o:p> </o:p></span></b></p><ol style='margin-top:0in' start=1 type=1><li class=MsoListParagraph style='color:red;margin-left:4.5pt;mso-list:l0 level1 lfo3'><b><span style='font-size:14.0pt'>Do a good job at selected parks so removal of one invasive does not just cause other invasive species to take over. Also, evaluators are excited to see the natives come back and then they support the NNI program. I started with Swann Park described below and we have done the same for LPBP, Cherry Hill Park, Magruder Woods and Clearwater NC. <o:p></o:p></span></b></li></ol><p class=MsoListParagraph><b><span style='font-size:14.0pt;color:red'><o:p> </o:p></span></b></p><ol style='margin-top:0in' start=2 type=1><li class=MsoListParagraph style='margin-left:4.5pt;mso-list:l0 level1 lfo3'><b><span style='font-size:14.0pt;color:red'>It may be too late at LPBP this year as it is at Swann Park for Japanese Stiltgrass. </span></b><b><span style='font-size:14.0pt'> <o:p></o:p></span></b></li></ol><p class=MsoNormal><b><o:p> </o:p></b></p><p class=MsoNormal><b>From:</b> Marc Imlay <<a href="mailto:ialm@erols.com">ialm@erols.com</a>> <br><b>Sent:</b> Friday, June 07, 2019 11:06 AM<br><b>To:</b> <a href="mailto:INVASIVES@LISTSERV.UMD.EDU">INVASIVES@LISTSERV.UMD.EDU</a><br><b>Subject:</b> update on times are changing<o:p></o:p></p><p class=MsoNormal><b><o:p> </o:p></b></p><p class=MsoNormal><b><span style='font-size:14.0pt'>Update on times are changing. <o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:14.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:14.0pt'>Today I surveyed 5 acres in the center of the 200 acre Swann Park in Charles County for garlic mustard and co-mingled other invasive plant species. I removed the 5 adult garlic mustard plants, 3 juvenile Japanese barberry, and about ten small wine berry. There were no other invasive species except for Japanese Stiltgrass which is monocultures over about žth of the 5 acres. It was almost entirely removed from the 200 acre park 20 years ago. On the perimeter of the park oriental bittersweet and Chinese privet has heavily invaded although they were eradicated from the entire 200 acre park 20 years ago. Unfortunately, we have to give up removing the JSG and wait for a biocontrol to evolve. <o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:14.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal><b><o:p> </o:p></b></p><ol style='margin-top:0in' start=3 type=1><li class=MsoListParagraph style='color:red;margin-left:4.5pt;mso-list:l0 level1 lfo3'><b><span style='font-size:14.0pt'>Because Asiatic Bush Honeysuckle increases the risk of Lyme disease from deer ticks by a factor of 10, let us remove it everywhere with a focus on where visitors come as in Lake Artemisia The other NNI to remove and not plant is Japanese barberry which increase</span></b><b><span style='font-size:14.0pt;color:windowtext'>s</span></b><b><span style='font-size:14.0pt'> the risk by 8.8 fold. <o:p></o:p></span></b></li></ol><p class=MsoNormal><b><span style='font-size:14.0pt;color:red'> <o:p></o:p></span></b></p><ol start=4 type=1><li class=MsoListParagraph style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:4.5pt;mso-list:l0 level1 lfo3'><b><span style='font-size:14.0pt;color:red'>Mke Ellis is on the look</span></b><b><span style='font-size:14.0pt'> <span style='color:red'>out for a native bio control of Japanese Stiltgrass such as he found with slugs. If a devastating impact is found we have been requested to report the finding to Matt Tancos with ARS. </span></span><o:p></o:p></b></li></ol><p class=MsoListParagraph style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:40.5pt'><b>From:</b> Tancos, Matthew - ARS <<a href="mailto:Matthew.Tancos@ARS.USDA.GOV" target="_blank">Matthew.Tancos@ARS.USDA.GOV</a>> <br><b>Sent:</b> Wednesday, March 27, 2019 4:03 PM<br><b>To:</b> <a href="mailto:ialm@erols.com" target="_blank">ialm@erols.com</a>; Jil Swearingen <<a href="mailto:jilswearingen@gmail.com" target="_blank">jilswearingen@gmail.com</a>><br><b>Subject:</b> Biological control of invasive weeds<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:14.0pt'> Hello Marc and Jil,<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:14.0pt'> Things have started to settle down with the new position, and I wanted to reach out to the both of you. Just to clarify, our mission has switched from investigating foreign pathogens to exclusively focusing on endemic pathogens to control invasive weed populations. Due to my limited staff and resources, I won’t be able to target all of these important invasive species at once (multiple stakeholders). However, I plan to focus my efforts on several key players and hope we are able to identify some promising pathogens. Identifying a potential pathogen will require being at the right place at the right time when disease initially develops; however, I remain optimistic! We are currently evaluating some pathogens for swallow-wort, Japanese hop, mile-a-minute, oriental bittersweet, and Japanese honeysuckle. I would really like to target invasive weeds colonizing wetland and riparian environments due to the importance of the Chesapeake Bay to our region. <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:14.0pt'> I think it will be very challenging to identify a promising pathogen on wavyleaf basketgrass due to its recent introduction. Approximately 30 years isn’t a lot of time for a new pathogen to emerge, but maybe I’m wrong. I would also be interested in looking at <i>Ranunculus ficaria </i>due to its ability to really outcompete in wetland/riparian environments. I can’t make any promises as to finding a potential pathogen, but we can give it a shot! Also the more eyes we have looking for severe dieback events, the better our odds.<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:14.0pt'> Best,<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:14.0pt'>-Matt<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:14.0pt;color:red'> 5. Winter and late Fall is the best time to save all our trees from evergreen vines including Japanese honeysuckle and English Ivy. It is ideal to have volunteers do this before tick season in Mid-April. And it is so easy to find all of them at that time. <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:14.0pt;color:red'> 6. OK all. Please share your ideas. <o:p></o:p></span></b></p><p class=MsoNormal> <b><span style='font-size:14.0pt'>Marc Imlay<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:14.0pt'>Natural Places Chair of the Maryland Chapter Sierra Club. <o:p></o:p></span></b></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><o:p> </o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <b><span style='font-size:14.0pt;color:red'><o:p></o:p></span></b></p><p class=MsoListParagraph><b><span style='font-size:14.0pt;color:red'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:14.0pt;color:red'><o:p> </o:p></span></b></p><p class=MsoNormal><b><o:p> </o:p></b></p><p class=MsoNormal><b><o:p> </o:p></b></p><p class=MsoNormal><b><span style='font-size:14.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:14.0pt'><o:p> </o:p></span></b></p></div><div id="DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br />
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