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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Depends on the effectiveness of the Biocontrol agent. That is why BC practitioners often prefer to see multiple agents attacking multiple sites.
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Alan V. Tasker, Ph.D.
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Consolas;color:#1F497D">Senior Regulatory Policy Specialist<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Consolas;color:#1F497D">USDA Animal & Plant Health Inspection Service
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Consolas;color:#1F497D">Plant Protection & Quarantine
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Consolas;color:#1F497D">Plants for Planting Import Policy Staff<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri","sans-serif";color:#1F497D">4700 River Road, 4C01.23</span><span style="font-size:9.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Riverdale, MD 20737<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Baskerville Old Face","serif";color:#C00000">Subscribe to the PPQ Stakeholder registry at:</span></b><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#C00000">
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> MAIPC [mailto:maipc-bounces@lists.maipc.org]
<b>On Behalf Of </b>Ellis, Michael<br>
<b>Sent:</b> Thursday, May 28, 2015 2:13 PM<br>
<b>To:</b> MA-IPC MA-IPC<br>
<b>Subject:</b> [MAIPC] The Garlic Monster - Third Year Adults and Beyond.<o:p></o:p></span></p>
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<p class="MsoNormal">As we begin to wrap up our Garlic Mustard season, I've become fascinated by the resiliency of the species.<o:p></o:p></p>
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<p class="MsoNormal">I'm seeing tremendous numbers of garlic mustard adults surviving into a third year if their stems were broken off in the year prior. Their wounds simply heal, their roots become massive and they sprout new stems and seeds.<o:p></o:p></p>
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<p class="MsoNormal">Here is a photo I took today in Beltsville of a specimen that survived our great Garlic Mustard pull of 2014, healed, and re-emerged:<o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#1F497D"><Image deleted to save band width></span><br>
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Would this not imply that these plants can come up again, possibly a fourth of fifth year if seeding was unsuccessful?<o:p></o:p></p>
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<p class="MsoNormal">This has me wondering if plants could bounce back after damage from say, an introduced biological control.<o:p></o:p></p>
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<p class="MsoNormal">Any thoughts?<o:p></o:p></p>
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<p class="MsoNormal">Michael Ellis<br>
Non-Native Invasive Plant Specialist<br>
Natural and Historical Resources Division, Park Ranger Office<br>
The Maryland-National Capital Park and Planning Commission<br>
<a href="http://www.pgparks.com">www.pgparks.com</a> <br>
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<a href="tel:240-429-5042">240-429-5042</a><o:p></o:p></p>
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