[MAIPC] The Garlic Monster - Third Year Adults and Beyond

[Bailey, Whitney - FS]

After having pulled every basal floret I saw for 2 months early this spring, and then seeing hundreds of dwarf plants pop up,  I would hypothesize that "dwarves" are created when the basal floret or adult plant is pulled, but some roots are left behind.  Therefore I'm thinking to stop pulling florets and only apply Round-up to them, as dwarf flowering plants are much harder to find, and thus more likely to live long enough to set seed.  I'll continue to pull adults, but will expect that if the root breaks off, that I'll have another plant there the next year. 

Whitney Bailey 
Forest Ecologist
Forest Service 
Monongahela National Forest
p: 304-636-1800 x280 
whitneybailey at fs.fed.us
200 Sycamore St. 
Elkins, WV 26241
www.fs.fed.us 

Caring for the land and serving people



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Today's Topics:

   1. Re: The Garlic Monster - Third Year Adults and Beyond. (frazmo)


----------------------------------------------------------------------

Message: 1
Date: Wed, 3 Jun 2015 11:25:16 -0400
From: frazmo <frazmo at gmail.com>
To: "Ellis, Michael" <Michael.Ellis at pgparks.com>
Cc: MA-IPC MA-IPC <maipc at lists.maipc.org>
Subject: Re: [MAIPC] The Garlic Monster - Third Year Adults and
	Beyond.
Message-ID:
	<CAOO+nP87k5oTd-zY3WBqaeDiXCPz4Awr-wFPQYCAOeeUSMR3Xg at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

This discussion makes me wonder about two things:

1. Could we unwittingly be creating selection for those "super" Garlic Mustard plants that are able to survive having the main stem broken off and develop viable seeds from resprouts later?
Similarly I have wondered whether we may be creating selection pressure for dwarfism as we pull the most prominent plants. I find many flowering dwarves.

2. Given the reports of allelopathic properties of GM, folks have suggested that it is undesirable to leave roots in place since they presumably contribute to the release of the allelopathic agents. This may be an additional argument in facor of maximizing effort to get the roots out.

Cheers,  Steve Young, "Arlington Steve"
MAIPC Treasurer
Blog: Plantwhacker.com


On Thu, May 28, 2015 at 2:12 PM, Ellis, Michael <Michael.Ellis at pgparks.com>
wrote:

>  As we begin to wrap up our Garlic Mustard season, I've become 
> fascinated by the resiliency of the species.
>
>  I'm seeing tremendous numbers of garlic mustard adults surviving into 
> a third year if their stems were broken off in the year prior. Their 
> wounds simply heal, their roots become massive and they sprout new stems and seeds.
>
>  Here is a photo I took today in Beltsville of a specimen that 
> survived our great Garlic Mustard pull of 2014, healed, and re-emerged:
>
>
>
> Would this not imply that these plants can come up again, possibly a 
> fourth of fifth year if seeding was unsuccessful?
>
>  This has me wondering if plants could bounce back after damage from 
> say, an introduced biological control.
>
>  Any thoughts?
>
> Michael Ellis
> Non-Native Invasive Plant Specialist
> Natural and Historical Resources Division, Park Ranger Office The 
> Maryland-National Capital Park and Planning Commission www.pgparks.com
>
> 240-429-5042
>
>
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