[MAIPC] Incised Fumewort (Corydalis incisa)

Mon Mar 21 14:52:20 PDT 2022

I've been working on a patch near Locust Grove Nature Center. Last year we
removed all we could find over March and April and this year the population
is reduced somewhat. As mentioned below it is mostly a biennial so I am
hoping that a thorough hand pulling this year will mean a big reduction
next year. The area is right next to the creek so there may be an upstream
source. It is a little easier to pull when flowering as the roots are
largely exhausted. I started last weekend though so I would be done before
garlic mustard season.

Mark

On Mon, Mar 21, 2022 at 4:57 PM carolallen <carolallen at erols.com> wrote:

> I have a "trial " plot here in Montgomery County, MD. With the aid of
> volunteers, we removed all plants before they went to seed last spring. The
> area is approximately 100' x 100'. Last year the area was heavily covered.
> This year, only a few have appeared. This plant is an annual/biannual. I
> believe removal before seed release is critical
>
>
>
>
> ------------------------------
> *From: *Patricia <Patricia.Greenberg at fairfaxcounty.gov>
> *To: *'MAIPC <maipc at lists.maipc.org>
> *Date: *Monday, 21 March 2022 3:16 PM EDT
> *Subject: *[MAIPC] Incised Fumewort (Corydalis incisa)
>
> Hi,
>
> We are seeing *Corydalis incisa* popping up in more places and in larger
> patches here in northern Virginia. There are many posts on iNaturalist. I
> was wondering what you are seeing in your areas and if and how you managing
> the populations?
>
> [image: flower(s)  and foliage]
>
>
>
> Last year, I reached out to people in New York to find out a little more
> about how they are managing their populations. Those who kindly got back to
> me were working with volunteers to dig up the plants. It sounds like the
> tap root must be completely removed. As far as I know, the National Park
> Service and contractors have worked out or are working out appropriate
> herbicides and percentages. The plant will be flowering in the next week or
> so in our area. Any other tips or suggestions, issues or studies would be
> greatly appreciated. Our National Capital PRISM is working to gather a
> little more information on its management here in the D.C. area.
>
>
>
> Thank you,
>
>
>
>
> *Patricia Pearl GreenbergEcologist II*
>
> *Invasive Management Area (IMA) Program Manager*
>
> *Natural Resource Branch*
>
> *Fairfax County Park Authority*
>
> *Office: 703-324-8673*
>
> patricia.greenberg at fairfaxcounty.gov
>
> *(She/Her/Hers)*
>
>
>
> *ISA Certified Arborist,* *MA-6067A*
>
> *ISA Tree Risk Assessment Qualified*
>
>
>
> <https://www.fairfaxcounty.gov/parks/invasive-management-area>
>
>
>
>
>
>
>
> *From:* MAIPC <maipc-bounces at lists.maipc.org> *On Behalf Of *Marc Imlay
> *Sent:* Sunday, February 27, 2022 2:41 PM
> *To:* 'MAIPC Listserve' <maipc at lists.maipc.org>
> *Subject:* [MAIPC] wineberry
>
>
>
> If you see something, say something.
>
>
>
> When the leaves of wineberry emerge this spring, be on the look out for
> damage to wineberry that is not happening to local native blackberries or
> raspberries.
>
>
>
> Marc
>
>
>
> *From:* Marc Imlay <ialm at erols.com>
> *Sent:* Friday, February 25, 2022 4:32 PM
> *To:* 'Tancos, Matthew - ARS' <matthew.tancos at usda.gov>; 'Jil Swearingen'
> <jilswearingen at gmail.com>
> *Subject:* wineberry
>
>
>
> Have we found a pathogen that has a major impact on wineberry but not on
> our native blackberries or raspberries? Marc
>
>
>
> [image: Grey mould]
>
> *Symptoms*
>
> - Very common and widespread. Fuzzy or slimy grey mould may appear on
> young leaves. Buds, flowers and flower stalks may rot.
>
>
>
>
>
> *From:* Tancos, Matthew - ARS <matthew.tancos at usda.gov>
> *Sent:* Monday, February 14, 2022 12:04 PM
> *To:* Jil Swearingen <jilswearingen at gmail.com>
> *Cc:* ialm at erols.com
> *Subject:* Re: [External Email]Speak to the Maryland Native Plant Society
> on May 31?
>
>
>
> Hi Jil,
>
> Since it would be in the evening, I will need to check my wife's work
> schedule (difficult that far in advance), but I should be able to give a
> virtual presentation on May 31st. How long of a talk? Hope all is well!
>
>
>
> best,
>
> Matt
>
>
>
> Matthew A. Tancos, PhD.
>
> Research Plant Pathologist
>
> USDA Agricultural Research Service
>
> Foreign Disease-Weed Science Research Unit
>
> 1301 Ditto Avenue
>
> Fort Detrick, MD 21702
>
> Tel: 301-619-7386
>
>
> ------------------------------
>
> *From:* Jil Swearingen <jilswearingen at gmail.com>
> *Sent:* Sunday, February 6, 2022 10:25 AM
> *To:* Tancos, Matthew - ARS <matthew.tancos at usda.gov>; Tancos, Matthew -
> ARS <matthew.tancos at usda.gov>
> *Cc:* ialm at erols.com <ialm at erols.com>
> *Subject:* [External Email]Speak to the Maryland Native Plant Society on
> May 31?
>
>
>
> [External Email]
> If this message comes from an *unexpected sender* or references a *vague/unexpected
> topic;*
> Use caution before clicking links or opening attachments.
> Please send any concerns or suspicious messages to: Spam.Abuse at usda.gov
>
> Hello Matt!
>
>
>
> I hope you're doing great. It's been a long time!
>
>
>
> Marc emailed me about the need to help support USDA's biological control
> program for invasive plants.
>
> If you're interested, we don't have a speaker for our evening monthly
> program on May 31 Tuesday 7-9pm. You can present remotely or come and give
> your talk in person to a small audience at the Hilton Garden Inn hotel in
> Greenbelt. Your choice. The programs are offered by Zoom meeting and have
> been extremely popular and well attended. They are recorded and posted to
> our website. I realize you may have to abide by some restrictions, being a
> government employee. I hope you are allowed to give presentations that are
> recorded.
>
>
>
> Let me know. If you'd like to discuss this further, we can schedule some
> time later this week. I'm fully booked-up through Thursday.
>
>
>
> Thanks very much,
>
>
>
> Jil
>
>
>
>
>
> JIL SWEARINGEN
>
> 410-200-7085 mobile/text
>
> --------------------------------------
>
> In the Weeds Consulting
>
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>
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>
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>
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