<div dir="ltr"><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small">If the timing works, you might consider this strategy recommended by Penn State Extension:</div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small"><span style="color:rgb(31,33,46);font-family:"Nunito Sans";font-size:18px"><i>If cutting tree-of-heaven for immediate safety reasons, do so and treat the stump. However, cut stump herbicide applications are not recommended because they do not provide effective control of roots. Stump treatments will keep the stump free of sprouts, but they will not prevent root suckering. When tree removal is necessary, it is best to treat with one of the above-mentioned herbicide applications first, wait for symptoms to develop (generally 30 days), and then cut.</i></span><br></div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small"><span style="color:rgb(31,33,46);font-family:"Nunito Sans";font-size:18px"><br></span></div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small"><span style="font-family:Arial,Helvetica,sans-serif"><a href="https://extension.psu.edu/tree-of-heaven">https://extension.psu.edu/tree-of-heaven</a></span></div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small"><span style="font-family:"times new roman",serif;color:rgb(0,0,0)"><br></span></div><div class="gmail_default" style="font-family:arial,sans-serif;font-size:small"><span style="font-family:"times new roman",serif;color:rgb(0,0,0)">_______________________________________</span><br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div style="font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;color:rgb(0,0,0)"><font size="4" face="arial, sans-serif"><span style="font-style:normal">Elizabeth Anne Mizell</span><span style="font-style:normal;white-space:pre"> </span></font></div><div style="font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;color:rgb(0,0,0)"><font size="2" face="arial, sans-serif">Executive Director | Blue Ridge PRISM</font></div><div style="font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;color:rgb(0,0,0)"><font size="2" face="arial, sans-serif"><span style="font-style:normal"><a href="mailto:beth@blueridgeprism.org" target="_blank">beth@blueridgeprism.org</a> </span></font></div><div dir="auto" style="font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;color:rgb(0,0,0)"><div dir="auto" style="color:rgb(0,0,0);font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><div dir="auto" style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;word-wrap:break-word;line-break:after-white-space"><div dir="auto" style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;word-wrap:break-word;line-break:after-white-space"><div dir="auto" style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;word-wrap:break-word;line-break:after-white-space"><div dir="auto" style="text-align:start;text-indent:0px;word-wrap:break-word;line-break:after-white-space"><div dir="auto" style="text-align:start;text-indent:0px;word-wrap:break-word;line-break:after-white-space"><div style="color:rgb(0,0,0);letter-spacing:normal;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><font size="2" face="arial, sans-serif"><br><br></font></div><div style="color:rgb(0,0,0);letter-spacing:normal;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><font size="2" face="arial, sans-serif"><a href="https://blueridgeprism.org/" target="_blank">Blue Ridge PRISM</a><span style="font-style:normal"> is a partnership for regional invasive species management in Virginia.</span></font></div></div></div></div></div></div></div></div><font face="arial, sans-serif"><br></font><br></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Aug 7, 2023 at 10:50 AM Ossi, Damien (DOEE) <<a href="mailto:damien.ossi@dc.gov">damien.ossi@dc.gov</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg4707609533574313332">
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<p class="MsoNormal">Hi MAIPC members,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Does anyone use oil-based triclopyr rather than water-based on ailanthus as a stump-cut treatment? We’re looking to remove a large number of ailanthus in DC before the spotted lanternflies arrive in force, and the vendor is proposing to
do a stump-cut treatment with triclopyr. I want to recommend that they use Garlon-4 or equivalent rather than Garlon-3a or equivalent, because the herbicide can be applied to both the sapwood on the stump and the bark on base of the stump. But I also saw
a study from Italy that indicated that glyphosate is better for stump-cut treatment of ailanthus.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">The trees must be removed at the time of treatment, so using hack-and-squirt or typical basal bark treatments won’t fly. Any advice from the membership?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Thanks,<u></u><u></u></p>
<p class="MsoNormal">Damien <u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><b>Damien P. Ossi<u></u><u></u></b></p>
<p class="MsoNormal">Wildlife Biologist<u></u><u></u></p>
<p class="MsoNormal">Fisheries & Wildlife Division<u></u><u></u></p>
<p class="MsoNormal">Department of Energy & Environment<u></u><u></u></p>
<p class="MsoNormal">Government of the District of Columbia<u></u><u></u></p>
<p class="MsoNormal">1200 First Street NE, 5th Floor<u></u><u></u></p>
<p class="MsoNormal">Washington, DC 20002<u></u><u></u></p>
<p class="MsoNormal">(202) 741-0840<u></u><u></u></p>
<p class="MsoNormal"><a href="mailto:damien.ossi@dc.gov" target="_blank"><span style="color:blue">damien.ossi@dc.gov</span></a><u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
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