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<DIV dir=ltr align=left><SPAN class=203161211-24092013><FONT color=#0000ff
face=Arial><STRONG>Since the same sudden expansion occurred with beefsteak plant
as with Japanese Stiltgrass at the 200 acre Swann Park in Southern Maryland, the
question is what explanation would work for both
species?</STRONG></FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=203161211-24092013><STRONG><FONT
color=#0000ff face=Arial></FONT></STRONG></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=203161211-24092013>
<DIV dir=ltr align=left><STRONG><FONT color=#0000ff face=Arial>Marc Imlay,
PhD,<BR>Conservation biologist, Park Ranger Office </FONT></STRONG>
<DIV style="MARGIN: 0in 0in 0pt"><SPAN><SPAN></SPAN><STRONG><FONT
face=Arial><FONT color=#0000ff><SPAN>Non-native </SPAN>I<SPAN>nvasive Plant
Control coordinator. </SPAN><BR></FONT></FONT></STRONG><A
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442-5657</STRONG></FONT></A><STRONG><FONT color=#0000ff face=Arial>
cell<BR></FONT></STRONG><A
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color=#0000ff face=Arial>Natural and Historical Resources Division<BR>The
Maryland-National Capital Park and Planning Commission<BR></FONT></STRONG><A
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<FONT size=2 face=Tahoma><B>From:</B> maipc-bounces@lists.maipc.org
[mailto:maipc-bounces@lists.maipc.org] <B>On Behalf Of </B>Margaret
Chatham<BR><B>Sent:</B> Monday, September 23, 2013 7:09 PM<BR><B>To:</B> Steve
Young; Landandforest<BR><B>Cc:</B> maipc@lists.maipc.org<BR><B>Subject:</B> Re:
[MAIPC] Stiltgrass control<BR></FONT><BR></DIV>
<DIV></DIV><FONT face="Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 12px">I can definitely cite Fraser Preserve in Northern
Virginia as an example of stilt grass growing exuberantly in the shade under
high canopy, but fading out in a ring around lower-growing, more densely shading
trees such as young beech & maple, pawpaw, American holly, and
blackhaw.<BR><BR>Margaret Chatham<BR>Falls Church, VA<BR><BR>On 9/23/13 5:20 PM,
"Steve Young" <steveyoung@aol.com> wrote:<BR><BR></SPAN></FONT>
<BLOCKQUOTE><FONT face="Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 12px">The other issue with deer is that they spread around
Microstegium seed from their hooves and fur as they travel, so that
infestations appear to grow faster and denser where there are many deer. We
humans also are culprits in spreading the seed via our own disturbance. In
Northern Virginia, I have seen dense stiltgrass stands in fairly shady areas,
so I am not convinced that shading makes that much difference. although surely
it helps. Any way you look at it, the deer contribute to the problem.
Cheers,<BR><BR>Steve Young<BR>Arlington VA<BR><BR><BR><BR>On Mon, Sep 23, 2013
at 3:54 PM, Landandforest <landandforest@gmail.com>
wrote:<BR></SPAN></FONT>
<BLOCKQUOTE><FONT face="Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 12px">I agree that deer management should be utilized as
another tool In the toolbox of IPM as well as light manipulation and
herbicides to combat invasives. I have noticed the ring around American
beech where I currently am applying pre-emergent control for next growing
season in heavily infested forest stands of Japanese stilt grass and
mile-a-minute. I wish we could get the Crummies Creek virus or blight to
infest our stilt grass populations in south central PA and central
MD.<BR><BR>Sent from my iPhone<BR><BR>On Sep 23, 2013, at 3:49 PM,
<rachel@fohvos.org> wrote:<BR><BR></SPAN></FONT>
<BLOCKQUOTE><FONT face="Verdana, Helvetica, Arial"><FONT size=4><SPAN
style="FONT-SIZE: 13px">Unfortunately, deer do not eat the stiltgrass.
<BR><BR>Deer browse the natives, which has left the forests of central NJ
without a sapling, shrub, and herb layer. More light reaches the forest
floor.<BR><BR>In healthy forests, with less deer pressure, there native
plants below the canopy level. These plants create a level of shade that
significantly reduces or eliminates the presence of stiltgrass.
<BR><BR>I've observed this to be true in upland, mesic, and lowland
forests. <BR><BR>I'd been interested if anyone else has observed the
stiltgrass-free ring that occurs beneath a robust shrub or
sapling.<BR><BR>Deer management is a great tool in invasive species
control, right next to herbicide.
<BR><BR>Rachel<BR><BR><BR><BR><BR><BR><BR>Rachel Mackow<BR>Land Steward /
NJISST Central Region Coordinator <BR><BR>Friends of Hopewell Valley Open
Space<BR>P.O. Box 395, Pennington, NJ 08534<BR>Tel: (609) 730-1560
<tel:%28609%29%20730-1560> Fax: (609) 730-1561
<tel:%28609%29%20730-1561> <BR><A
href="http://www.fohvos.org/">http://www.fohvos.org/</A><BR> <BR> <BR><BR><BR></SPAN></FONT></FONT>
<BLOCKQUOTE><FONT face="Verdana, Helvetica, Arial"><FONT size=4><SPAN
style="FONT-SIZE: 13px">-------- Original Message --------<BR>Subject:
Re: [MAIPC] Stiltgrass control<BR>From: Kathi Mestayer
<kwren@widomaker.com><BR>Date: Mon, September 23, 2013 3:20
pm<BR>To: <rachel@fohvos.org><BR>Cc:
maipc@lists.maipc.org<BR><BR>wow. Send some of your deer down our
way....ours aren't eating the stiltgrass at all. And it's
flourishing in full shade. Maybe that's just because it's so much
hotter down here?<BR>k<BR><BR> <BR></SPAN></FONT></FONT><FONT
size=4><SPAN style="FONT-SIZE: 13px"><FONT face=Palatino>Kathi
Mestayer<BR>KMA Consulting<BR>105 Gilley Drive<BR>Williamsburg, Va
23188<BR>kwren@widomaker.com<BR>757-229-6575 <tel:757-229-6575>
<BR>757-229-9396 <tel:757-229-9396> (fax)<BR><BR>"There are
10 kinds of people -- people who understand binary and people who
don't."<BR>- Anon.<BR><BR><BR> <BR> <BR>On Sep 23, 2013, at
12:37 PM, <rachel@fohvos.org> wrote:<BR><BR></FONT><FONT
face="Verdana, Helvetica, Arial">Hi Marc,<BR>In forest habitats,
Stiltgrass is usually controlled by shade cast by native seedlings,
shrubs and small trees, as well as herbs and grasses. Most of these
forms of plant life are browsed excessively, however...<BR><BR>In deer
exclosures, jewelweed is a great control method. Is deer management an
option on the preserve and adjacent parcels?<BR><BR>On a very limited
basis, I have smothered the seeds with oak leaves removed from my
driveway. I placed the leaves in a forest exclosure beneath a red maple
canopy. This is feasible in garden-like
situations.<BR><BR>Rachel<BR><BR><BR>Rachel Mackow<BR>Land Steward /
NJISST Central Region Coordinator <BR><BR>Friends of Hopewell Valley
Open Space<BR>P.O. Box 395, Pennington, NJ 08534<BR>Tel: (609) 730-1560
<tel:%28609%29%20730-1560> Fax: (609) 730-1561
<tel:%28609%29%20730-1561> <BR><A
href="http://www.fohvos.org">http://www.fohvos.org</A> <A
href="http://www.fohvos.org/"><http://www.fohvos.org/></A>
/<BR> <BR> <BR><BR><BR> <BR></FONT></SPAN></FONT>
<BLOCKQUOTE><FONT size=4><SPAN style="FONT-SIZE: 13px"><FONT
face="Verdana, Helvetica, Arial"><BR> -------- Original Message
--------<BR> Subject: Re: [MAIPC] Stiltgrass
control<BR> From: Bruce Barbour
<barbour@RCE.Rutgers.edu><BR> Date: Wed, September 04, 2013
10:42 am<BR> To:
maipc@lists.maipc.org<BR> <BR> <BR>Marc,<BR> I notice
you did mention herbicides. Research has shown effectiveness of
crabgrass pre-emergent herbicides on stiltgrass and, if the site
warrants it, you can also kill stiltgrass with post emergent selective
grass herbicides such as Poast and Fusilaide. Of course, depending on
your state law and the material selected there may be a requirement to
have the application done by a certified pesticide
applicator.<BR> Bruce<BR> ==================================================
Bruce Barbour Voice: 908-475-6505 <tel:908-475-6505> Ag
& Resource Management Agent Fax: 908-475-6514
<tel:908-475-6514> Rutgers Cooperative Extension Mobile:
908-309-7660 <tel:908-309-7660> RCE of Warren County 165
Route 519 South Belvidere, N.J. 07823-1949 Internet:
Barbour@Aesop.Rutgers.Edu
===================================================== Learn more about
the Rutgers Environmental Stewards at <A
href="http://envirostewards.rutgers.edu/">http://envirostewards.rutgers.edu/</A>
On 9/4/2013 8:00 AM, Marc Imlay
wrote:<BR> <BR> <BR></FONT></SPAN></FONT>
<BLOCKQUOTE><FONT size=4><SPAN style="FONT-SIZE: 13px"><FONT
face="Verdana, Helvetica, Arial"> <BR></FONT><FONT
color=#0000ff><FONT face=Arial><B>How is Japanese Stiltgrass control
going on in your park? <BR></B></FONT></FONT><FONT
face=Arial><BR> <BR> <BR></FONT></SPAN></FONT></BLOCKQUOTE></BLOCKQUOTE><FONT
size=4><SPAN style="FONT-SIZE: 13px"><FONT face=Arial><FONT
color=#0000ff><B>This year I have had the ability to only remove all the
Japanese Stiltgrass over 150 acres at the 200 acre Ruth B. Swann Park in
Charles county, MD. We</B></FONT></FONT></SPAN><FONT
face=Arial><FONT color=#0000ff><B><SPAN style="FONT-SIZE: 14px">
have removed all the stiltgrass every year since 2004</SPAN><SPAN
style="FONT-SIZE: 13px">. It should be gone since the seed bank is
supposed to be only 5 years. When I removed all the stiltgrass in
the 200 acre Swann Park in the last decade stiltgrass was gone by the
5th year and almost gone by the 4th year.<BR></SPAN></B></FONT><SPAN
style="FONT-SIZE: 13px"><BR></SPAN></FONT></FONT></BLOCKQUOTE><FONT
face="Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 12px"> <BR> <BR> <BR> <BR> <BR></SPAN></FONT><SPAN
style="FONT-SIZE: 12px"><FONT color=#0000ff><FONT face=Arial><B>So what
has changed? Climate change is one answer. For the past few years in an
open area at Swann Park I would remove all the stilt gras and beefsteak
plant in July and come back in late August to remove late emergents. The
amount of work in August was only 10% of the amount of work in July. Now
it is an equal amount. In fact, I had to remove beefsteak plant 3
times to be sure I got late emergents. <BR></B></FONT></FONT><FONT
face="Verdana, Helvetica, Arial"><BR> <BR> <BR></FONT><FONT
color=#0000ff><FONT face=Arial><B>Other explanations include deer movement
and movement of stiltgrass down streams. 90 % of the massive new
populations that have sudenly apppeared at Swann Park are not near streams
and not where people use the park. Deer may be more effective in bringing
in stiltgrass since the areas contiguous with Swann Park are now covered
with stiltgrass so it is easier to come in. So stiltgrass is probably
moving in by deer and water from abundant sources from outside of the
park. <BR></B></FONT></FONT><FONT
face="Verdana, Helvetica, Arial"><BR> <BR> <BR> <BR></FONT><FONT
color=#0000ff><FONT face=Arial><B>In conclusion, we have three choices. We
can apply for a large crew to join us to control stiltgrass.
<BR></B></FONT></FONT><FONT
face="Verdana, Helvetica, Arial"><BR> <BR> <BR></FONT><FONT
color=#0000ff><FONT face=Arial><B>Or we can give up.
<BR></B></FONT></FONT><FONT
face="Verdana, Helvetica, Arial"><BR> <BR> <BR></FONT></SPAN></BLOCKQUOTE></BLOCKQUOTE><SPAN
style="FONT-SIZE: 12px"><FONT color=#0000ff><FONT face=Arial><B>For a third
choice please look for stiltgrass dying from leaf blight. My major
concern about waiting for the leaf blight bio-control to become available
years from now is stiltgrass moving in to the massive pristine areas of
the 200 acre park. </B> </FONT></FONT></SPAN><FONT
face=Arial><FONT size=4><SPAN style="FONT-SIZE: 14px"><B>I found one such
patch, about 10' x 20' in early September last year in the middle of
Swann Park. I left the contiguous stiltgrass untreated slightly down the hill
for about 20' and will check it out next week. If you find such a patch there
are researchers that may be interested in looking at the patch.
<BR></B></SPAN></FONT></FONT><FONT face="Verdana, Helvetica, Arial"><SPAN
style="FONT-SIZE: 12px"><BR></SPAN></FONT><SPAN style="FONT-SIZE: 12px"><FONT
color=#0000ff><FONT face=Arial><B>Marc Imlay, PhD <BR> Chair of the
Biodiversity and Habitat Stewardship Committee for the Maryland Chapter of the
Sierra Club.<BR> <BR></B><BR> <BR> <BR></FONT></FONT><FONT
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