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<p class="MsoNormal"><b><span style="font-size:14.0pt">Surveying for native biological controls has two approaches that have worked very well.<o:p></o:p></span></b></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><b><span style="font-size:14.0pt"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span></b><![endif]><b><span style="font-size:14.0pt">Search at the far end of the range of the invasive plant species. The native insect/fungus bio controls for Multiflora Rose and Tree of Heaven popped up when MFR moved to the middle of the
America and Ailanthus to the deep south central. <o:p></o:p></span></b></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><b><span style="font-size:14.0pt"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span></span></b><![endif]><b><span style="font-size:14.0pt">Search near where the invasive first came to America so there has been more time for a biocontrol to evolve as may be the case for Japanese honeysuckle at Heritage Island which was brought
over by Thomas Jefferson.<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:14.0pt">For Porcelain berry, for example, look at
<a href="https://plants.usda.gov/core/profile?symbol=AMBR7">https://plants.usda.gov/core/profile?symbol=AMBR7</a> Note the 17 states it is invasive in. So let us se if an insect of pathogen is having a major impact on it in the extreme of the range. If so
we can report it to Matt Tancos at USDA for research. Let us do the same for ground ivy, beefsteak plant, Fig buttercup, JSG, WLBG, Oriental bittersweet, garlic mustard, etc., etc.<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:14.0pt"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:14.0pt">Marc<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Marc Imlay, PhD, Chair, Biological Control Working Group MAIPC<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Conservation Biologist, Park Ranger Office, Non-native Invasive Plant Control Coordinator.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Cell: (301) 442-5657, <a href="ialm@erols.com">
ialm@erols.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Natural and Historical Resources Division<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">The Maryland-National Capital Park and Planning Commission<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><a href="www.pgparks.com">www.pgparks.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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