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<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">Extending the Timeframe for Rapid<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">Response and Best Management Practices<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">of Flood-Dispersed Japanese Knotweed<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">(Fallopia japonica)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">Brian P. Colleran and Katherine E. Goodall<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">Invasive Plant Science and Management
</span><span style="font-size:12.0pt">2015 8:250–253</span><span style="font-size:20.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">Abstract:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">“The objective of this article is to extend the reported period in which flood-distributed knotweed propagules may be<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">successfully managed using only manual labor. During a second round of early detection and rapid response (EDRR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">management along the Green River in Guilford, VT, we collected and measured all Japanese knotweed propagules that<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">had been distributed by flooding approximately 21 mo earlier, in August 2011, at a single site. Our data suggest that<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">knotweed
</span><span style="font-size:12.0pt">s.l. </span><span style="font-size:12.0pt">prioritizes the growth of new stems over new rhizomes at the start of a growing season. Because the<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">limiting factor for successful removal of new knotweed
</span><span style="font-size:12.0pt">s.l. </span><span style="font-size:12.0pt">plants by hand is the size of the rhizome system, our findings<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">support extending the time frame for EDRR management of flood-distributed knotweed
</span><span style="font-size:12.0pt">s.l. </span><span style="font-size:12.0pt">into the second spring<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">after its initial dispersal. Additionally, in November 2013, surveys of our work sites found no new knotweed
</span><span style="font-size:12.0pt">s.l. </span><span style="font-size:12.0pt">plants<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt">in locations accessible to work crews. In addition to validating our EDRR management techniques, this implies that<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">knotweed </span><span style="font-size:12.0pt">s.l.
</span><span style="font-size:12.0pt">fragment viability does not extend past the second spring following its dispersal.”</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><img width="69" height="65" id="Picture_x0020_1" src="cid:image001.png@01D0BFAF.D93E1190" alt="Forest Service Shield"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:black">Whitney Bailey
<br>
Forest Ecologist<o:p></o:p></span></b></p>
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<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:black">Forest Service
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<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#28742E">Monongahela National Forest<o:p></o:p></span></b></p>
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<p class="MsoNormal"><b><span style="font-size:8.5pt;font-family:"Arial","sans-serif";color:black">p: 304-636-1800 x280
<br>
<a href="mailto:whitneybailey@fs.fed.us"><span style="color:blue">whitneybailey@fs.fed.us</span></a><o:p></o:p></span></b></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Arial","sans-serif";color:black">200 Sycamore St.
<br>
Elkins, WV 26241<br>
<a href="http://www.fs.fed.us/"><span style="color:blue">www.fs.fed.us</span></a>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#28742E">Caring for the land and serving people<o:p></o:p></span></b></p>
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