[MAIPC] Incised fumewort infestations can be really bad

[frazmo]

We have been doing sweeps for it in Arlington VA and finding plants in the
Four Mile Run watershed. Not too many plants yet but it's easy to see its
spreading potential. Superficially it seems to float seeds downstream along
the flood plain.  We have tried to diligently report patches in iNat.
Cheers, Steve Young, Volunteer, Master Naturalist

On Thu, Apr 27, 2023, 10:27 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
>
>
>
> *CAUTION:* 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 phishing at dc.gov for additional analysis by
> OCTO Security Operations Center (SOC).
>
>
>
> 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.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.maipc.org/pipermail/maipc-maipc.org/attachments/20230503/82ec8dcf/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: large.jpeg
Type: image/jpeg
Size: 176868 bytes
Desc: not available
URL: <http://lists.maipc.org/pipermail/maipc-maipc.org/attachments/20230503/82ec8dcf/attachment-0002.jpeg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: large.jpeg
Type: image/jpeg
Size: 176868 bytes
Desc: not available
URL: <http://lists.maipc.org/pipermail/maipc-maipc.org/attachments/20230503/82ec8dcf/attachment-0003.jpeg>