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<DIV><FONT face=Arial size=2>Seems right to me, as far as it goes. But we have
brains to think with--the regs are something else. Observe, observe, observe!
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>WT</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=jmbarr@academicplanet.com
href="mailto:jmbarr@academicplanet.com">John</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Cc:</B> <A
title=apwg@lists.plantconservation.org
href="mailto:apwg@lists.plantconservation.org">apwg@lists.plantconservation.org</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, May 14, 2013 6:00 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [APWG] Heavy use of
herbicide Roundup linked tohealthdangers:study</DIV>
<DIV><BR></DIV>The patent on Round-up has run out, years ago.
There is no reason for using the name brand stuff. It is usually
twice the price or more!
<DIV><BR></DIV>
<DIV>You may purchase generic glyphosate with zero surfactant. This is
the formulation approved for use on bodies of water. You may use without
surfactant or you may add the surfactant of your choice If you add
your own surfactant, and it has not been tested, you will need to do your own
tests of toxicity.</DIV>
<DIV><BR></DIV>
<DIV>The word "toxicity" is defined by federal law when used in conjunction
with pesticides (herbicides). The following article has a bit of
information about how levels of toxicity are determined, and how you can read
pesticide labels to understand the words used. In all cases, it is the
"active" ingredient that is tested because this is the way the federal law is
written.</DIV>
<DIV><BR></DIV>
<DIV><A
href="http://smith.agrilife.org/files/2011/06/pesticide_toxicity_3.pdf">http://smith.agrilife.org/files/2011/06/pesticide_toxicity_3.pdf</A></DIV>
<DIV><BR></DIV>
<DIV><BR></DIV>
<DIV>jb</DIV>
<DIV><BR></DIV>
<DIV><BR></DIV>
<DIV>On May 13, 2013, at 10:29 AM, Gena Fleming wrote:
<DIV>
<DIV><BR class=Apple-interchange-newline>
<BLOCKQUOTE type="cite">
<DIV class=gmail_quote>Thank you for that information, Marc. I can not
find an MSDS on Roundup Classic. Has it been
discontinued?<BR><BR>Signal words are used as a rudimentary ranking system
for <I>acute</I> toxicity. Environmental data concerns are generally
addressed in a different section. You describe Roundup Pro as
"harmless" to amphibians, but the article you attach simply says it is "not
lethal", which is not the same thing.<BR><BR>It is hard to discuss any of
this in a meaningful way when surfactants are not disclosed on the product
label. This document is the best information I have been able to
retrieve so far and concluding statements are pasted below:<BR><A
href="http://www.fs.fed.us/foresthealth/pesticide/pdfs/Surfactants.pdf"
target=_blank>http://www.fs.fed.us/foresthealth/pesticide/pdfs/Surfactants.pdf</A><BR><BR>
<DIV dir=ltr style="FONT-SIZE: 16px; FONT-FAMILY: serif"><SPAN
style="COLOR: rgb(0,0,153)">Comparable data allowing for an assessment of
the joint action of glyphosate with the</SPAN></DIV><SPAN
style="COLOR: rgb(0,0,153)"></SPAN>
<DIV dir=ltr style="FONT-SIZE: 16px; FONT-FAMILY: serif"><SPAN
style="COLOR: rgb(0,0,153)">surfactant used in Roundup Pro are not
available. The surfactant used in Roundup Pro is a</SPAN></DIV>
<DIV dir=ltr style="FONT-SIZE: 16px; FONT-FAMILY: serif"><SPAN
style="COLOR: rgb(0,0,153)">phosphate ester neutralized polyethoxylated
tallow amine (Monsanto 1996) that is probably</SPAN></DIV><SPAN
style="COLOR: rgb(0,0,153)"></SPAN>
<DIV dir=ltr style="FONT-SIZE: 16px; FONT-FAMILY: serif"><SPAN
style="COLOR: rgb(0,0,153)">similar to the polyethoxylated tallow amine used
in Roundup. Consequently, it is reasonable to</SPAN></DIV>
<DIV dir=ltr style="FONT-SIZE: 16px; FONT-FAMILY: serif"><SPAN
style="COLOR: rgb(0,0,153)">assume that the surfactant in Roundup Pro will
enhance the toxicity of glyphosate to aquatic</SPAN></DIV><SPAN
style="COLOR: rgb(0,0,153)">species.</SPAN><BR><BR>best,<BR>Gena
<DIV class="yj6qo ajU">
<DIV class=ajR id=:1l4 tabIndex=0><IMG class=ajT
src="https://mail.google.com/mail/images/cleardot.gif"></DIV></DIV><BR><BR><BR>On
Fri, May 10, 2013 at 6:24 AM, Marc Imlay <SPAN dir=ltr><<A
href="mailto:ialm@erols.com" target=_blank>ialm@erols.com</A>></SPAN>
wrote:<BR>
<DIV dir=ltr align=left><FONT size=+0>
<P><B><FONT face=Arial color=#0000ff
size=3>Hi <SPAN>Gena</SPAN>,<BR><BR>At M-NCPPC we have switched to
Round-up Pro because it is harmless to amphibians<SPAN> according to the web
site: </SPAN></FONT></B></P>
<P class=MsoNormal dir=ltr align=left><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><A
title=blocked::http://www.nps.gov/plants/alien/fact/mivi1.htm
href="http://www.nps.gov/plants/alien/fact/mivi1.htm" target=_blank><FONT
title=blocked::http://www.nps.gov/plants/alien/fact/mivi1.htm size=3><SPAN
title=blocked::http://www.nps.gov/plants/alien/fact/mivi1.htm
style="COLOR: #0000cc"><B>http://www.nps.gov/plants/alien/fact/mivi1.htm</B></SPAN></FONT></A></SPAN></P>
<P>We dilute the 41% concentrate from Lowes by 20 fold and spray to
wet. </P></FONT>
<P><B><SPAN><SPAN style="FONT-SIZE: 14pt"><SPAN><SPAN><B><FONT face=Arial
color=#0000ff size=3>Marc Imlay, PhD,<BR><BR>Conservation biologist, Park
Ranger Office<BR>Non-native Invasive Plant Control coordinator.<BR>(301)
442-5657 cell<BR></FONT></B><A
title="blocked::blocked::mailto:ialm@erols.com
blocked::mailto:ialm@erols.com"><FONT
title="blocked::blocked::mailto:ialm@erols.com
blocked::mailto:ialm@erols.com"
face=Arial size=3><B
title="blocked::blocked::mailto:ialm@erols.com
blocked::mailto:ialm@erols.com">ialm@erols.com</B></FONT></A><BR><B><FONT
face=Arial color=#0000ff size=3>Natural and Historical Resources
Division<BR>The Maryland-National Capital Park and Planning
Commission<BR></FONT></B><A
title="blocked::blocked::http://www.pgparks.com/
blocked::http://www.pgparks.com/"
href="http://www.pgparks.com/" target=_blank><B
title="blocked::blocked::http://www.pgparks.com/
blocked::http://www.pgparks.com/"><FONT
title="blocked::blocked::http://www.pgparks.com/
blocked::http://www.pgparks.com/"
face=Arial
size=3>www.pgparks.com</FONT></B></A></SPAN></SPAN></SPAN></SPAN></B></P><SPAN><SPAN
style="FONT-SIZE: 14pt"><SPAN><SPAN></SPAN></SPAN></SPAN></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff><SPAN><SPAN
style="FONT-SIZE: 14pt"><SPAN><SPAN></SPAN></SPAN></SPAN></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff><SPAN><SPAN
style="FONT-SIZE: 14pt"><SPAN><SPAN></SPAN></SPAN></SPAN></SPAN></FONT> </DIV>
<P dir=ltr align=left><BR></P>
<P class=MsoNormal dir=ltr align=left><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><A
title=blocked::http://www.nps.gov/plants/alien/fact/mivi1.htm
href="http://www.nps.gov/plants/alien/fact/mivi1.htm" target=_blank><FONT
title=blocked::http://www.nps.gov/plants/alien/fact/mivi1.htm size=3><SPAN
title=blocked::http://www.nps.gov/plants/alien/fact/mivi1.htm
style="COLOR: #0000cc"><B>http://www.nps.gov/plants/alien/fact/mivi1.htm</B></SPAN></FONT></A></SPAN></P>
<P class=MsoNormal dir=ltr align=left><I><FONT color=#12440f size=4><SPAN
style="FONT-SIZE: 13.5pt; COLOR: #12440f; FONT-STYLE: italic">Microstegium
vimineum</SPAN></FONT></I><FONT color=#12440f size=4><SPAN
style="FONT-SIZE: 13.5pt; COLOR: #12440f"> (Trin.) Camus </SPAN></FONT>
<BR><FONT color=#12440f size=4><SPAN
style="FONT-SIZE: 13.5pt; COLOR: #12440f">Grass family
(Poaceae)<BR></SPAN></FONT><FONT size=+0><SPAN
style="FONT-SIZE: 10pt"><SPAN><image001.gif></SPAN><A
title=blocked::http://www.nps.gov/plants/alien/fact/pdf/mivi1.pdf
href="http://www.nps.gov/plants/alien/fact/pdf/mivi1.pdf"
target=_blank>Download PDF version formatted for print</A> (155
KB)</SPAN></FONT> </P>
<DIV><BR class=webkit-block-placeholder> </DIV>
<P dir=ltr align=left><FONT size=+0><FONT face=Arial
size=3><B> </B><FONT face="Times New Roman"><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 12pt; FONT-STYLE: italic">Chemical<BR></SPAN>For
extensive stiltgrass infestations, use of a systemic herbicide such as
glyphosate (e.g., <SPAN
style="FONT-WEIGHT: bold; BACKGROUND: #a0ffff">Roundup Pro</SPAN>®) is a
practical and effective method if used with some caution. Glyphosate is a
non-specific herbicide that will kill or damage almost any herbaceous plant
and possibly some woody plants it contacts. <SPAN
style="FONT-WEIGHT: bold; BACKGROUND: #a0ffff">Roundup Pro</SPAN>® is
surfactant-loaded (no additional surfactant needed) and the surfactant is
not lethal to amphibians and aquatic invertebrates like the
polyoxyethyleneamine surfactant in Roundup Classic® is. <SPAN
style="FONT-WEIGHT: bold; BACKGROUND: #a0ffff">Roundup Pro</SPAN>® carries
the 'Caution' signal word while Roundup Classic® carries 'Warning'. When
treating stiltgrass in wetland sites, use Rodeo® or other formulation
labeled for wetlands. Apply a 2% solution of Roundup® or Rodeo® mixed with
water (8 oz. per 3 gals. mix) and a surfactant in late summer. Be careful to
avoid application to non-target
plants.</FONT><BR></FONT></FONT></P><BR><BR><BR><BR></DIV><BR><BR>_______________________________________________<BR>PCA's
Alien Plant Working Group mailing list<BR><A
href="mailto:APWG@lists.plantconservation.org">APWG@lists.plantconservation.org</A><BR>http://lists.plantconservation.org/mailman/listinfo/apwg_lists.plantconservation.org<BR><BR>Disclaimer<BR>Any
requests, advice or opinions posted to this list reflect ONLY the opinion of
the individual posting the message.</BLOCKQUOTE></DIV><BR></DIV></DIV>
<P>
<HR>
<P></P><BR>_______________________________________________<BR>PCA's Alien
Plant Working Group mailing
list<BR>APWG@lists.plantconservation.org<BR>http://lists.plantconservation.org/mailman/listinfo/apwg_lists.plantconservation.org<BR><BR>Disclaimer<BR>Any
requests, advice or opinions posted to this list reflect ONLY the opinion of
the individual posting the message.
<P>
<HR>
<P></P><A></A>
<P class=avgcert align=left color="#000000">No virus found in this
message.<BR>Checked by AVG - <A
href="http://www.avg.com">www.avg.com</A><BR>Version: 10.0.1432 / Virus
Database: 3162/5823 - Release Date: 05/14/13</P></BLOCKQUOTE></BODY></HTML>