[MAIPC] Summer Invasives.

[Stephen Hiltner]

Sorry to hear. Perhaps development of a C4 pathway specific herbicide would
help, since stiltgrass is said to be one of the few C4 species that grows
in the shade? Googling brings up a few results--more than would come up a
few years ago.

On Sat, Aug 27, 2016 at 10:53 AM, MarneyB <marneyb at earthlink.net> wrote:

> On a walk recently on the River Trail at Great Falls MD I noticed that
> Golden ragwort – *Packera aurea* - was able to deter Japanese Stiltgrass
> in an area where this invasive and had taken to a large extent.
>
>
>
> Marney
>
>
>
> *From:* MAIPC [mailto:maipc-bounces at lists.maipc.org] *On Behalf Of *Marc
> Imlay
> *Sent:* Saturday, August 27, 2016 9:39 AM
> *To:* maipc at lists.maipc.org
> *Subject:* [MAIPC] Summer Invasives.
>
>
>
> *I have found this year that the Japanese Stiltgrass is no longer
> controllable over 400 acres of parkland  in spites of extensive use of
> pre-emergents in March. At the 200 acre Swann Park beefsteak is no longer
> controllable. And many folks have found the same for Wavyleaf basketgrass.
> . Twenty years ago it was very doable to save all our parks. So mid-late
> Summer invasives is very sad, especially since stiltgrass is so totally
> destructive and replaces the other ground vegetation.  *
>
>
>
> *I remind myself that I have been successful with invasives for the rest
> of the year including garlic mustard and Lesser Celandine. For the late
> Summer invasives , biological control remains our best hope, both effective
> host specific from Eurasia, etc. as well as waiting for native biological
> controls to pop up as with Ailanthus after 200 years. . *
>
>
>
> *From:* Imlay, Marc
> *Sent:* Thursday, August 25, 2016 10:08 AM
> *To:*
> *Subject:* RE: Mniutes from August 2016 board meeting
>
>
>
> *A top issue for invasive plant control folks is should we continue to
> remove all the Asiatic bittersweet, bush honeysuckle,  juvenile garlic
> mustard, Japanese barberry, porcelain berry, beefsteak, multi flora rose,
>  mimosa, wineberry,  and mile-a minute. Or switch our resources to Japanese
> Stilt grass and wavyleaf basket grass that have become so much more
> abundant and destructive at our high priority sites. *
>
>
>
>
>
> *Marc Imlay, PhD, Chair, MAIPC Biological control working Group
> Conservation biologist, *
>
> *Park Ranger Office, Non-native Invasive Plant Control coordinator. *
> *Marc.Imlay at pgparks.com* <Marc.Imlay at pgparks.com>
>
> *(301) 442-5657 <%28301%29%20442-5657> cell  Natural and Historical
> Resources Division*
>
> *The  Maryland-National   Capital   Park  and Planning Commission*
>
>
>
>
> *Marc Imlay, PhD Chair of the Biodiversity and Habitat Stewardship
> Committee for the Maryland Chapter of the Sierra Club.*
>
>
>
>
>
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