<div dir="ltr"><div>It is spreading fast along the Rivanna River here in Albemarle County and is pretty much done blooming and will shortly disappear from the landscape until next year. It is definitely spreading through a private property with 1-2 miles of river bank. We are more or less at 600' in elevation here. It has also spread along the riverbank at a park in the city of Charlottesville, And I was at a site behind VMI in Lexington, down along the Maury River and it has taken over there. I don't know how extensive the area with this plant is, but it's rather pitiful: Bluebells poking up through the C incisa along this stretch, which is (or was?) very rich. Sigh.</div><div><br></div><div>Ruth Douglas<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, May 3, 2023 at 4:17 PM Donna Ford-Werntz <<a href="mailto:dford2@wvu.edu">dford2@wvu.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg-9058958085098920009">
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<span style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">WV had 2020 iNat report from residential area, but it wasn't apparent at the site (or evident around the neighborhood)
when I checked last year.</span><br>
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I didn't attempt contact with property owner or make close examination of surroundings (the local homes have mostly well managed lawn yards).<br>
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<span style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">It was maybe planted/introduced in garden and hasn't spread overwhelmingly yet, though a better look might find it persisting. I'll
keep watch,</span><br>
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<div>Donna Ford-Werntz, Ph.D.<br>
Service Professor/Herbarium Curator<br>
Biology Dept., Box 6057<br>
Life Sci. Bldg., 53 Campus Dr.<br>
West Virginia Univ.<br>
Morgantown, WV 26506<br>
304-293-0794; <a href="http://biology.wvu.edu" target="_blank">biology.wvu.edu</a></div>
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<div id="m_-9058958085098920009divRplyFwdMsg" dir="ltr"><font style="font-size:11pt;color:rgb(0,0,0)" face="Calibri, sans-serif"><b>From:</b> MAIPC <<a href="mailto:maipc-bounces@lists.maipc.org" target="_blank">maipc-bounces@lists.maipc.org</a>> on behalf of Greenberg, Patricia <<a href="mailto:Patricia.Greenberg@fairfaxcounty.gov" target="_blank">Patricia.Greenberg@fairfaxcounty.gov</a>><br>
<b>Sent:</b> Friday, April 28, 2023 12:25 PM<br>
<b>To:</b> Jeffrey Branham <<a href="mailto:jbranham@prescott.edu" target="_blank">jbranham@prescott.edu</a>>; Ossi, Damien (DOEE) <<a href="mailto:damien.ossi@dc.gov" target="_blank">damien.ossi@dc.gov</a>><br>
<b>Cc:</b> <a href="mailto:maipc@lists.maipc.org" target="_blank">maipc@lists.maipc.org</a> <<a href="mailto:maipc@lists.maipc.org" target="_blank">maipc@lists.maipc.org</a>><br>
<b>Subject:</b> Re: [MAIPC] Incised fumewort infestations can be really bad</font>
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Hi,</p>
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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. </p>
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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.</p>
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Patricia </p>
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<p style="margin:0in;font-size:11pt;font-family:"Calibri",sans-serif">
<b><span style="font-size:12pt;color:black">Patricia Pearl Greenberg<br>
Ecologist II</span></b><span style="font-size:12pt;color:black"></span></p>
<p style="margin:0in;font-size:11pt;font-family:"Calibri",sans-serif">
<b><span style="font-size:12pt;color:black">Invasive Management Area Program Manager</span></b><span style="font-size:12pt;color:black"></span></p>
<p style="margin:0in;font-size:11pt;font-family:"Calibri",sans-serif">
<span style="font-size:12pt;color:black">Natural Resource Management and Protection Branch</span></p>
<p style="margin:0in;font-size:11pt;font-family:"Calibri",sans-serif">
<span style="font-size:12pt;color:black">Fairfax County Park Authority</span></p>
<p style="margin:0in;font-size:11pt;font-family:"Calibri",sans-serif">
<span style="font-size:12pt;color:black">Office: 703-324-8673</span></p>
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<span style="font-size:12pt;color:black"><a href="mailto:patricia.greenberg@fairfaxcounty.gov" target="_blank">patricia.greenberg@fairfaxcounty.gov</a></span></p>
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<span style="font-size:12pt;color:black">(She/Her)</span></p>
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ISA Certified Arborist</p>
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Tree Risk Assessment Qualified (TRAQ)</p>
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<b>From:</b> MAIPC <<a href="mailto:maipc-bounces@lists.maipc.org" target="_blank">maipc-bounces@lists.maipc.org</a>> <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) <<a href="mailto:damien.ossi@dc.gov" target="_blank">damien.ossi@dc.gov</a>><br>
<b>Cc:</b> <a href="mailto:maipc@lists.maipc.org" target="_blank">maipc@lists.maipc.org</a><br>
<b>Subject:</b> Re: [MAIPC] Incised fumewort infestations can be really bad</p>
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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..</p>
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On Thu, Apr 27, 2023 at 10:26 AM Ossi, Damien (DOEE) <<a href="mailto:damien.ossi@dc.gov" target="_blank">damien.ossi@dc.gov</a>> wrote:</p>
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Hi folks,</p>
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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.
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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.</p>
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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.</p>
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Have you been tracking this plant in your area?</p>
<p style="margin:0in;font-size:11pt;font-family:"Calibri",sans-serif">
Damien</p>
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<p style="margin:0in;font-size:11pt;font-family:"Calibri",sans-serif">
<b>Damien Ossi</b></p>
<p style="margin:0in;font-size:11pt;font-family:"Calibri",sans-serif">
<i><span style="font-size:10pt">Wildlife Biologist</span></i></p>
<p style="margin:0in;font-size:11pt;font-family:"Calibri",sans-serif">
<span style="font-size:10pt">Fisheries and Wildlife Division</span></p>
<p style="margin:0in;font-size:11pt;font-family:"Calibri",sans-serif">
<span style="font-size:10pt">Department of Energy and Environment</span></p>
<p style="margin:0in;font-size:11pt;font-family:"Calibri",sans-serif;background:white">
<span style="font-size:10pt;color:black">202-741-0840</span><span style="font-size:10pt;color:rgb(40,40,40)"><br>
<a href="mailto:damien.ossi@dc.gov" target="_blank">damien.ossi@dc.gov</a></span></p>
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<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</p>
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Hi All, </p>
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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.</p>
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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. </p>
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<span style="font-size:9pt;font-family:"Helvetica",sans-serif;color:black"><a href="https://www.inaturalist.org/observations/155117633" target="_blank"><span style="text-decoration:none;color:rgb(39,39,39)">Incised
Fumewort (Corydalis incisa)</span></a></span></p>
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<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="text-decoration:none;color:gray">inaturalist.org</span></a></span></p>
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I think we need to have a meeting this winter and develop a region wide (or nationwide) management plan, something large scale.</p>
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Best,</p>
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Sara</p>
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<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></p>
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Cheers,<br>
JB</p>
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