[MAIPC] Stiltgrass control

Tue Sep 24 06:40:43 PDT 2013

'The glyphosate makes the stiltgrass crispy pretty quickly.   
then you just keep an eye on the area for a couple of years, and you're
done."

This worked in all my 4 parks from 2004 until 2011. Then the change
occurred.

Marc 

  _____  

From: maipc-bounces at lists.maipc.org [mailto:maipc-bounces at lists.maipc.org]
On Behalf Of kathi mestayer
Sent: Tuesday, September 24, 2013 9:13 AM
To: Randall, John L
Cc: maipc at lists.maipc.org
Subject: Re: [MAIPC] Stiltgrass control

yeah, me, too.  The glyphosate makes the stiltgrass crispy pretty quickly.

then you just keep an eye on the area for a couple of years, and you're
done.
btw, a botany/geometry word problem based on stiltgrass>
As we know, stiltgrass propagates by sending up a few stems, and then at the
end of the growing season, each stem falls outward in a series of rays, from
the center.  So, what is the formula for the increase in area of stiltgrass
in a given growing season?
k

On Sep 23, 2013, at 3:31 PM, Randall, John L wrote:

Bret: I use exactly the same approach.
Johnny
From: maipc-bounces at lists.maipc.org [mailto:maipc-bounces at lists.maipc.org]
On Behalf Of Landandforest
Sent: Monday, September 23, 2013 3:21 PM
To: <rachel at fohvos.org>
Cc: maipc at lists.maipc.org
Subject: Re: [MAIPC] Stiltgrass control
While smothering is feasible, you would smother other plants as well. While
treating Japanese stilt grass with a 0.5% solution of aquatic labeled
glyphosate will kill stilt grass and leave natural regeneration without
harm.
 Bret Robinson

Sent from my iPhone

On Sep 23, 2013, at 12:37 PM, <rachel at fohvos.org> wrote:

Hi Marc,
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...

In deer exclosures, jewelweed is a great control method. Is deer management
an option on the preserve and adjacent parcels?

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.

Rachel

Rachel Mackow
Land Steward / NJISST Central Region Coordinator 

Friends of Hopewell Valley Open Space
P.O. Box 395, Pennington, NJ 08534
Tel: (609) 730-1560 Fax: (609) 730-1561
http://www.fohvos.org/

-------- Original Message --------
Subject: Re: [MAIPC] Stiltgrass control
From: Bruce Barbour <barbour at RCE.Rutgers.edu>
Date: Wed, September 04, 2013 10:42 am
To: maipc at lists.maipc.org

Marc,
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.
Bruce
================================================== Bruce Barbour Voice:
908-475-6505 Ag & Resource Management Agent Fax: 908-475-6514 Rutgers
Cooperative Extension Mobile: 908-309-7660 RCE of Warren County 165 Route
519 South Belvidere, N.J. 07823-1949 Internet:
Barbour at Aesop.Rutgers.Edu===================================================
== Learn more about the Rutgers Environmental Stewards at
http://envirostewards.rutgers.edu/ On 9/4/2013 8:00 AM, Marc Imlay wrote:

How is Japanese Stiltgrass control going on in your park?

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
have removed all the stiltgrass every year since 2004. 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.

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.

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.

In conclusion, we have three choices. We can apply for a large crew to join
us to control stiltgrass.

Or we can give up.

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.  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.

Marc Imlay, PhD 
Chair of the Biodiversity and Habitat Stewardship Committee for the Maryland
Chapter of the Sierra Club.

 <http://myhosting.com/> <part2.03080205.06000008 at rce.rutgers.edu>

 <http://myhosting.com/> <part2.03080205.06000008 at rce.rutgers.edu>

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