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<DIV dir=ltr align=left><STRONG><FONT color=#0000ff face=Arial><SPAN
class=214054011-04092013>How is Japanese Stiltgrass control going on in your
park? </SPAN></FONT></STRONG></DIV>
<DIV dir=ltr align=left><STRONG><FONT color=#0000ff face=Arial><SPAN
class=214054011-04092013></SPAN></FONT></STRONG> </DIV>
<DIV dir=ltr align=left><STRONG><FONT color=#0000ff face=Arial><SPAN
class=214054011-04092013>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</SPAN></FONT></STRONG><FONT size=2><STRONG><FONT
color=#0000ff size=3 face=Arial> have removed all the stiltgrass every year
since 200<SPAN class=214054011-04092013>4</SPAN>. 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.</FONT></STRONG></FONT></DIV>
<DIV dir=ltr align=left><FONT size=2><STRONG><FONT color=#0000ff size=3
face=Arial></FONT></STRONG></FONT> </DIV>
<DIV dir=ltr align=left> </DIV>
<DIV dir=ltr align=left><SPAN class=859451909-03092013>
<DIV dir=ltr align=left><FONT color=#0000ff face=Arial><SPAN
class=859451909-03092013><STRONG>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.
</STRONG></SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff face=Arial><SPAN
class=859451909-03092013><STRONG></STRONG></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff face=Arial><SPAN
class=859451909-03092013><STRONG>Other explanations include deer movement and
movement of stiltgrass down streams<SPAN class=214054011-04092013>.</SPAN> 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. </STRONG></SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff face=Arial><SPAN
class=859451909-03092013><STRONG></STRONG></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><SPAN class=859451909-03092013>
<DIV dir=ltr align=left><FONT color=#0000ff face=Arial><SPAN
class=859451909-03092013><STRONG>In conclusion, we have three choices. We can
apply for a large crew to join us to control stiltgrass<SPAN
class=214054011-04092013>.</SPAN><SPAN class=214054011-04092013>
</SPAN></STRONG></SPAN></FONT><FONT color=#0000ff face=Arial><SPAN
class=859451909-03092013><STRONG></STRONG></SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff face=Arial><SPAN
class=859451909-03092013><STRONG></STRONG></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff face=Arial><SPAN
class=859451909-03092013><STRONG>Or we can give up.
</STRONG></SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff face=Arial><SPAN
class=859451909-03092013><STRONG></STRONG></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><SPAN class=859451909-03092013><FONT face=Arial><FONT
color=#0000ff><STRONG>For a third choice <SPAN
class=214054011-04092013>please look for stiltgrass dying from leaf blight.
M</SPAN>y 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 <SPAN class=214054011-04092013>200</SPAN> acre <SPAN
class=214054011-04092013>p</SPAN>ark. </STRONG><SPAN
class=214054011-04092013><FONT size=2> </FONT><FONT size=3><STRONG>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.
</STRONG></FONT></SPAN></FONT></FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=859451909-03092013><FONT face=Arial><FONT
color=#0000ff><SPAN class=214054011-04092013><SPAN
class=875282211-03092013></SPAN>
<P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px"><SPAN><SPAN
class=890254509-29082013><SPAN><STRONG><SPAN><FONT color=#0000ff><FONT
face=Arial><SPAN>Marc Imlay, PhD <BR></SPAN><SPAN>Chair of the Biodiversity and
Habitat Stewardship Committee for the Maryland Chapter of the Sierra
Club.</SPAN></FONT></FONT></SPAN><BR></STRONG></SPAN></SPAN></SPAN></P>
<P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px"><SPAN><FONT color=#0000ff size=2
face=Arial></FONT></SPAN> </P></SPAN></FONT></FONT></SPAN></DIV>
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<P style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px"><SPAN><SPAN
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