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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><b><span style='font-size:14.0pt'>Hi Alex,<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'>See previous messages below with MAIPC on </span></b><b><i><span style='font-size:16.0pt;color:red'>Murdannia keisak.</span></i></b><i><o:p></o:p></i></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:black;background:white'> </span></b><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif;color:red'>Marc Imlay, PhD, Chair, MAIPC Biological control working Group Conservation biologist, </span></b><span style='font-size:12.0pt;font-family:"Times New Roman",serif'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b>From:</b> MAIPC <maipc-bounces@lists.maipc.org> <b>On Behalf Of </b>Alexander Fisher<br><b>Sent:</b> Sunday, August 18, 2019 2:01 PM<br><b>To:</b> maipc@lists.maipc.org<br><b>Subject:</b> [MAIPC] Murdannia Info<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Can anyone share information on their experiences with the management of <i>Murdannia keisak </i>for conservation or restoration. Also if you have information on herbicide treatment prescriptions that is welcomed too.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I am continuing to find this plant along streams and wetlands throughout Virginia as far as Bedford County and Albemarle to the west and VA Beach to the east. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Alex Fisher<o:p></o:p></p><p class=MsoNormal>Conservation Chair of VNPS<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b>From:</b> MAIPC <maipc-bounces@lists.maipc.org> <b>On Behalf Of </b>sarahechamberlin@gmail.com<br><b>Sent:</b> Tuesday, August 28, 2018 10:35 AM<br><b>To:</b> maipc@lists.maipc.org<br><b>Subject:</b> [MAIPC] Beware Marsh Dewflower!<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:14.0pt'>Please, please be on the lookout for Marsh Dewflower (aka Dayflower), <i>Murdannia</i> <i>keisak. </i>If you aren’t aware of this moisture loving plant, I cannot emphasize enough the need for you to learn to recognize it so that you can pull it immediately. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'><br><br><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>In the space of only two years it has overwhelmed the wetlands/stream on my Charles City County, Virginia property. Mats of Marsh Dewflower have <i>smothered</i> native habitat. Because the seeds come from upstream; the invasion cannot be controlled.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'><br><br><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>According to EDD Maps it is spreading throughout the mid-Atlantic. <a href="https://www.invasiveplantatlas.org/subject.html?sub=3053"><span style='color:blue'>https://www.invasiveplantatlas.org/subject.html?sub=3053</span></a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'><br><br><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>Removing non-native invasive plants is my passion. Japanese Honeysuckle and Japanese Stilt grass, once prevalent on my property, have been removed by hand. All that I need to do now is to monitor for new invasions. But with <i>Murdannia</i> <i>keisak, </i>a plant I was not familiar with<i>, </i>I have met my match. I can only remove it from select areas in and along the marsh, knowing that the annual will return to the same areas next year. It is a heartbreaker. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'><br><br><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>Please, please beware this plant! <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'><br><br><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>Sally Chamberlin<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>Certified Virginia Master Naturalist <o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b>From:</b> Marc Imlay <ialm@erols.com> <br><b>Sent:</b> Sunday, October 30, 2016 8:31 AM<br><b>To:</b> 'Sue Muller' <sonicsue@verizon.net>; 'Muller, Sue' <smuller@howardcountymd.gov><br><b>Cc:</b> Ellis, Michael <Michael.Ellis@pgparks.com><br><b>Subject:</b> yesterday<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>Hi Sue,<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>As discussed yesterday, A management guide for Invasive Plants in Southern Forests, page 66, states “Japanese Knotweed spreads along streams by stem and rhizome fragments, and rare seeds”<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>Regarding </span></b><b><i><span style='font-size:11.5pt;font-family:"Arial",sans-serif;color:#228622;background:white'>Murdannia</span></i></b><b><span style='font-size:11.5pt;font-family:"Arial",sans-serif;color:#228622;background:white'> <i>keisak</i> wartremoving herb </span></b><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif'><a href="http://plants.usda.gov/core/profile?symbol=MUKE"><span style='color:#0563C1'>http://plants.usda.gov/core/profile?symbol=MUKE</span></a> shows it introduced in Maryland. </span></b>Wart-Removing Herb Murdannia keisak (Hassk.) Hand.-Maz. O Originally associated with rice production in east Asia and likely was imported with rice to be used as seed in Louisiana and South Carolina. Earliest records of existence are from the 1920’s. O Found in all coastal states from Delaware to Louisiana. O Dispersal is by seed and from vegetative structures. Waterfowl favor seed as a food source and are a suspected vector. O Has an aggressive ability to establish and take over wetlands and marshes at the exclusion of native plants.<b><span style='font-size:12.0pt;font-family:"Arial",sans-serif'><o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif'><a href="https://www.clemson.edu/extension/natural_resources/forestry/veg_mgmt/invasive_species_booklet.pdf"><span style='color:#0563C1'>https://www.clemson.edu/extension/natural_resources/forestry/veg_mgmt/invasive_species_booklet.pdf</span></a><o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></b></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:12.0pt;font-family:"Times New Roman",serif'><img border=0 width=109 height=60 style='width:1.1354in;height:.625in' id="Picture_x0020_2" src="cid:image001.jpg@01D555E6.55DEC700" alt="NPS and USFWS"></span><span style='font-size:13.5pt;font-family:"Times New Roman",serif;color:black'>Plant Invaders of Mid-Atlantic Natural Areas<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:13.5pt;font-family:"Times New Roman",serif;color:black'>Swearingen, J., K. Reshetiloff, B. Slattery, and S. Zwicker. 2002. Plant Invaders of<br>M</span><span style='font-size:12.0pt;font-family:"Times New Roman",serif'> </span><span style='font-size:13.5pt;font-family:"Times New Roman",serif;color:black'><a href="http://www.invasive.org/eastern/midatlantic/muke.htmlid-Atlantic"><span style='color:#0563C1'>http://www.invasive.org/eastern/midatlantic/muke.htmlid-Atlantic</span></a> Natural Areas. National Park Service and U.S. Fish & Wildlife Service, 82 pp.<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width=600 style='width:6.25in'><tr><td style='padding:0in 0in 0in 0in'><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Times New Roman",serif;color:black'><o:p> </o:p></span></p><table class=MsoNormalTable border=0 cellspacing=6 cellpadding=0 align=right><tr><td style='padding:.75pt .75pt .75pt .75pt'><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman",serif'><img border=0 width=250 height=220 style='width:2.6041in;height:2.2916in' id="Picture_x0020_1" src="cid:image002.jpg@01D555E6.55DEC700" alt="Marsh Dewflower"><br><i>Brent Steury, NPS</i><o:p></o:p></span></p></td></tr></table><p class=MsoNormal><b><span style='font-size:13.5pt;font-family:"Times New Roman",serif;color:black'>Marsh Dewflower</span></b><span style='font-size:13.5pt;font-family:"Times New Roman",serif;color:black'><br><i>Murdannia keisak</i><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:13.5pt;font-family:"Times New Roman",serif;color:black'>Marsh dewflower, a member of the spiderwort family and native of eastern Asia, was first noted in 1935 in cultivated rice paddies in South Carolina. It escaped and has become established in the wild in 18 southern states and the District of Columbia. Marsh dewflower prefers damp soil at the edge of freshwater tidal marshes, around ponds and along slow moving streams. Its aggressive growth enables it to out-compete native plants by forming dense mats. Seeds are dispersed by wildlife. It also spreads when floods distribute root fragments to new locations.<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:13.5pt;font-family:"Times New Roman",serif;color:black'>Prevention and Control</span></b><span style='font-size:13.5pt;font-family:"Times New Roman",serif;color:black'><br>Hand pulling may be effective if done before the plant sets seed. Glyphosate treatments were ineffective when applied early in the season.<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:13.5pt;font-family:"Times New Roman",serif;color:black'>Native Alternatives</span></b><span style='font-size:13.5pt;font-family:"Times New Roman",serif;color:black'><br>water plantain (<i>Alisma subcordatum</i>), three-way sedge (<i>Dulichium arundinaceum</i>), duck-potato or arrowhead (<i>Sagittaria latifolia</i> or <i>rigida</i>)<o:p></o:p></span></p></td></tr></table><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif'><a href="http://www.invasive.org/eastern/midatlantic/muke.html"><span style='color:#0563C1'>http://www.invasive.org/eastern/midatlantic/muke.html</span></a><o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>Marc<o:p></o:p></span></b></p><p class=MsoNormal><o:p> </o:p></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:black;background:white'> </span></b><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif;color:red'>Marc Imlay, PhD, Chair, MAIPC Biological control working Group Conservation biologist, </span></b><span style='font-size:12.0pt;font-family:"Times New Roman",serif'><o:p></o:p></span></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:red'>Park Ranger Office, Non-native Invasive Plant Control coordinator. </span></b><span style='font-size:12.0pt;font-family:"Times New Roman",serif'><a href="mailto:Marc.Imlay@pgparks.com" target="_blank"><b><span style='font-family:"Arial",sans-serif;color:red;text-decoration:none'>Marc.Imlay@pgparks.com</span></b></a><o:p></o:p></span></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:red'>(301) 442-5657 cell Natural and Historical Resources Division</span></b><span style='font-size:12.0pt;font-family:"Times New Roman",serif'><o:p></o:p></span></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:red'>The Maryland-National Capital Park and Planning Commission</span></b><span style='font-size:12.0pt;font-family:"Times New Roman",serif'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b>From:</b> MAIPC <maipc-bounces@lists.maipc.org> <b>On Behalf Of </b>Williams, Owen Thomas Alexande<br><b>Sent:</b> Wednesday, June 01, 2016 2:27 PM<br><b>To:</b> maipc@lists.maipc.org<br><b>Subject:</b> [MAIPC] seeking experienced advice to treat Murdannia keisak<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hello all,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:14.0pt'>I am seeking the advice of people with experience treating Murdannia keisak. I have a ½ acre seasonally flooded pond with a bad infestation. I can control holding up to 20’’ of water in the deepest parts of the pond, subject to rates of precipitation/evapotranspiration. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>Has anyone had success with a particular chemical, treatment timing, combination with flooding…etc. I have avoided mechanical treatments and I have had little to no progress with rodeo applied in the August timeframe.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'><o:p> </o:p></span></p><p class=MsoNormal>Thanks very much,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Owen<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Owen Williams<o:p></o:p></p><p class=MsoNormal>Ecologist<o:p></o:p></p><p class=MsoNormal>Resource Management Division<o:p></o:p></p><p class=MsoNormal>Fairfax County Park Authority<o:p></o:p></p><p class=MsoNormal>12055 Government Center Parkway, Suite 936<o:p></o:p></p><p class=MsoNormal>Fairfax, VA 22035-1118<o:p></o:p></p><p class=MsoNormal>Office ph. (703) 324-1036 Fax (703) 324-3996<o:p></o:p></p><p class=MsoNormal><a href="mailto:owilli@fairfaxcounty.gov"><span style='color:#0563C1'>owilli@fairfaxcounty.gov</span></a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div><div id="DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br />
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