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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal">We have a 30-acre area on the Difficult Run Stream Valley in Fairfax County of Corydalis incisa. For that area, we are just trying to contain and keep it from spreading further out from center. However, it’s been located all along the trails
and all the way down to the Potomac River. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Really grateful for the Invader Detectives for the support in helping us track it down. We have a fantastic group of EDRR volunteers that have really been tremendous in helping us survey the parkland so we can learn the extent of spread.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Patricia <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">Patricia Pearl Greenberg<br>
Ecologist II</span></b><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">Invasive Management Area Program Manager</span></b><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Natural Resource Management and Protection Branch<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Fairfax County Park Authority<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Office: 703-324-8673<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">patricia.greenberg@fairfaxcounty.gov<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">(She/Her)<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">ISA Certified Arborist<o:p></o:p></p>
<p class="MsoNormal">Tree Risk Assessment Qualified (TRAQ)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> MAIPC <maipc-bounces@lists.maipc.org> <b>On Behalf Of
</b>Jeffrey Branham<br>
<b>Sent:</b> Thursday, April 27, 2023 10:47 AM<br>
<b>To:</b> Ossi, Damien (DOEE) <damien.ossi@dc.gov><br>
<b>Cc:</b> maipc@lists.maipc.org<br>
<b>Subject:</b> Re: [MAIPC] Incised fumewort infestations can be really bad<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I'm relatively new to the area, but its all over Philadelphia, particularly in the Wissahickon Gorge. As far as I know, its not really prevalent in NJ which is a wonder because we've got every other invasive species. Seems like its only
a matter of time..<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Thu, Apr 27, 2023 at 10:26 AM Ossi, Damien (DOEE) <<a href="mailto:damien.ossi@dc.gov">damien.ossi@dc.gov</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi folks,<o:p></o:p></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">If you’re like me, you have not been aware of the rapid growth of incised fumewort in the past few years. Under Sara Tangren’s leadership the Nat Cap PRISM started tracking it
this spring with our network of Invader Detectives. <o:p></o:p></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">It’s…everywhere, and it appears to be outcompeting or outright killing bluebells wherever they occur together. USDA’s weed risk assessment for this species found no evidence for
allelopathy in field tests, but that had high uncertainty.<o:p></o:p></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">Please click on the iNatualist entry below and look at the images. It appears to occupy 1+ acres in Seneca Creek State Park in Montgomery County. This is the largest population
that we have found this year, but it appears to go from a few plants to a large population in only two or three seasons.<o:p></o:p></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">Have you been tracking this plant in your area?<o:p></o:p></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">Damien<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b>Damien Ossi</b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i><span style="font-size:10.0pt">Wildlife Biologist</span></i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt">Fisheries and Wildlife Division</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt">Department of Energy and Environment</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white">
<span style="font-size:10.0pt;color:black">202-741-0840</span><span style="font-size:10.0pt;color:#282828"><br>
<a href="mailto:damien.ossi@dc.gov" target="_blank">damien.ossi@dc.gov</a></span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b>From:</b>
<a href="mailto:invaderdetectives@googlegroups.com" target="_blank">invaderdetectives@googlegroups.com</a> <<a href="mailto:invaderdetectives@googlegroups.com" target="_blank">invaderdetectives@googlegroups.com</a>>
<b>On Behalf Of </b>Tangren, Sara (DOEE)<br>
<b>Sent:</b> Monday, April 17, 2023 11:36 AM<br>
<b>To:</b> <a href="mailto:invaderdetectives@googlegroups.com" target="_blank">invaderdetectives@googlegroups.com</a><br>
<b>Subject:</b> [InvaderDetectives] incised fumewort infestations can be really bad<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:12.0pt;background:#FFEB9C">
<b><span style="font-size:10.0pt;color:#9C6500">CAUTION:</span></b><span style="font-size:10.0pt;color:black"> This email originated from outside of the DC Government. Do not click on links or open attachments unless you recognize the sender and know that the
content is safe. If you believe that this email is suspicious, please forward to
<a href="mailto:phishing@dc.gov" target="_blank">phishing@dc.gov</a> for additional analysis by OCTO Security Operations Center (SOC).</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi All,
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I’ve spent the last week helping combat an infestation at Hemlock Overlook Park (Bull Run watershed, VA). The appearance of what is going on there suggests that the plants are allelopathic,
but only scientific tests could tell us for sure. To see the bluebells, violets, and spring beauties being overrun was heartbreaking. It took only 3 years to go from first observation to serious ecological damage and first response. We’ve got to react to this
species more quickly from here on out.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Today I’m catching up on iNat reviews and came across this one by our own esummerbell. Her photos do an excellent job of capturing just how bad incised fumewort can get, please
have a look. <o:p></o:p></p>
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<span style="font-family:"Helvetica",sans-serif;color:black"><img border="0" width="228" height="304" style="width:2.375in;height:3.1666in" id="m_7507636785366107057Picture_x0020_1" src="cid:image001.jpg@01D979CC.86DE38A0"></span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif;color:black"><a href="https://www.inaturalist.org/observations/155117633" target="_blank"><span style="color:#272727;text-decoration:none">Incised
Fumewort (Corydalis incisa)</span></a></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:8.5pt;font-family:"Helvetica",sans-serif;color:black"><a href="https://www.inaturalist.org/observations/155117633" target="_blank"><span style="color:gray;text-decoration:none">inaturalist.org</span></a></span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I think we need to have a meeting this winter and develop a region wide (or nationwide) management plan, something large scale.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Best,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Sara<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black">Sara A. Tangren, Ph.D.<br>
Coordinator<br>
National Capital PRISM<br>
Department of Energy & Environment<br>
Government of the District of Columbia<br>
1200 First Sreet NE, Fifth Floor<br>
Washington, DC 20002<br>
<a href="mailto:sara.tangren@dc.gov" target="_blank">sara.tangren@dc.gov</a></span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:black"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">--
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<p class="MsoNormal">_______________________________________________<br>
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<a href="mailto:MAIPC@lists.maipc.org" target="_blank">MAIPC@lists.maipc.org</a><br>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span class="gmailsignatureprefix">-- </span><o:p></o:p></p>
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<p class="MsoNormal">Cheers,<br>
JB<o:p></o:p></p>
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