[MAIPC] Incised fumewort infestations can be really bad

Wed May 3 14:48:46 PDT 2023

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.

Ruth Douglas

On Wed, May 3, 2023 at 4:17 PM Donna Ford-Werntz <dford2 at wvu.edu> wrote:

> 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.
> I didn't attempt contact with property owner or make close examination of
> surroundings (the local homes have mostly well managed lawn yards).
> 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,
>
> Donna Ford-Werntz, Ph.D.
> Service Professor/Herbarium Curator
> Biology Dept., Box 6057
> Life Sci. Bldg., 53 Campus Dr.
> West Virginia Univ.
> Morgantown, WV 26506
> 304-293-0794; biology.wvu.edu
> ------------------------------
> *From:* MAIPC <maipc-bounces at lists.maipc.org> on behalf of Greenberg,
> Patricia <Patricia.Greenberg at fairfaxcounty.gov>
> *Sent:* Friday, April 28, 2023 12:25 PM
> *To:* Jeffrey Branham <jbranham at prescott.edu>; Ossi, Damien (DOEE) <
> damien.ossi at dc.gov>
> *Cc:* maipc at lists.maipc.org <maipc at lists.maipc.org>
> *Subject:* Re: [MAIPC] Incised fumewort infestations can be really bad
>
> Hi,
>
> 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.
>
> 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.
>
> Patricia
>
>
> *Patricia Pearl Greenberg Ecologist II*
>
> *Invasive Management Area Program Manager*
>
> Natural Resource Management and Protection Branch
>
> Fairfax County Park Authority
>
> Office: 703-324-8673
>
> patricia.greenberg at fairfaxcounty.gov
>
> (She/Her)
>
> ISA Certified Arborist
>
> Tree Risk Assessment Qualified (TRAQ)
>
> *From:* MAIPC <maipc-bounces at lists.maipc.org> *On Behalf Of *Jeffrey
> Branham
> *Sent:* Thursday, April 27, 2023 10:47 AM
> *To:* Ossi, Damien (DOEE) <damien.ossi at dc.gov>
> *Cc:* maipc at lists.maipc.org
> *Subject:* Re: [MAIPC] Incised fumewort infestations can be really bad
>
>
>
> 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..
>
>
>
> On Thu, Apr 27, 2023 at 10:26 AM Ossi, Damien (DOEE) <damien.ossi at dc.gov>
> wrote:
>
> Hi folks,
>
> 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.
>
> 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.
>
> 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.
>
> Have you been tracking this plant in your area?
>
> Damien
>
> *Damien Ossi*
>
> *Wildlife Biologist*
>
> Fisheries and Wildlife Division
>
> Department of Energy and Environment
>
> 202-741-0840
> damien.ossi at dc.gov
>
>
>
> *From:* invaderdetectives at googlegroups.com <
> invaderdetectives at googlegroups.com> *On Behalf Of *Tangren, Sara (DOEE)
> *Sent:* Monday, April 17, 2023 11:36 AM
> *To:* invaderdetectives at googlegroups.com
> *Subject:* [InvaderDetectives] incised fumewort infestations can be
> really bad
>
> Hi All,
>
> 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.
>
> 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.
>
> Incised Fumewort (Corydalis incisa)
> <https://www.inaturalist.org/observations/155117633>
>
> inaturalist.org <https://www.inaturalist.org/observations/155117633>
>
>
>
> I think we need to have a meeting this winter and develop a region wide
> (or nationwide) management plan, something large scale.
>
> Best,
>
> Sara
>
> Sara A. Tangren, Ph.D.
> Coordinator
> National Capital PRISM
> Department of Energy & Environment
> Government of the District of Columbia
> 1200 First Sreet NE, Fifth Floor
> Washington, DC 20002
> sara.tangren at dc.gov
>
> --
> You received this message because you are subscribed to the Google Groups
> "InvaderDetectives" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to invaderdetectives+unsubscribe at googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/invaderdetectives/1DBB8272-4805-48C9-93E5-A20BC7C7CEC8%40dc.gov
> <https://groups.google.com/d/msgid/invaderdetectives/1DBB8272-4805-48C9-93E5-A20BC7C7CEC8%40dc.gov?utm_medium=email&utm_source=footer>
> .
>
> You received this email because you are subscribed to the Maryland
> Invasive Species Council (INVASIVES) mailing list. If you would like to
> unsubscribe from this list, simply send an email to
> listserv at listserv.umd.edu with the message signoff INVASIVES in the body.
>
> _______________________________________________
> MAIPC mailing list
> MAIPC at lists.maipc.org
>
> http://lists.maipc.org/listinfo.cgi/maipc-maipc.or
> <http://lists.maipc.org/listinfo.cgi/maipc-maipc.org>g--
>
> Cheers,
>   JB
> _______________________________________________
> MAIPC mailing list
> MAIPC at lists.maipc.org
> http://lists.maipc.org/listinfo.cgi/maipc-maipc.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.maipc.org/pipermail/maipc-maipc.org/attachments/20230503/cc3e0163/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 176868 bytes
Desc: not available
URL: <http://lists.maipc.org/pipermail/maipc-maipc.org/attachments/20230503/cc3e0163/attachment-0001.jpg>