<div dir="ltr">In a study we performed on a new clearing through a forest in Delaware for an electric transmission line 20 years ago, we noticed a lack of germinating plants under holly trees which were selectively retained along the rights-of-way edge. We suspected allelopathic chemicals being leached into the soil from holly leaf litter or some other means of transport. Our study did not have the financing to confirm this suspicion, but my study partner Michael Robin Haggie of Chesapeake Wildlife Heritage, provided this information on literature search: <span style="font-family:'Times New Roman',serif;font-size:12.8px">Check out Elroy Rice’s text “Allelopathy” p. 80. I only have the 2</span><sup style="font-family:'Times New Roman',serif">nd</sup><span style="font-family:'Times New Roman',serif;font-size:12.8px"> </span><span style="font-family:'Times New Roman',serif;font-size:12.8px">edition (1984) = most updated edition? He cites Peterson’s research on the allelopathic effects of</span><span style="font-family:'Times New Roman',serif;font-size:12.8px"> </span><i style="font-family:'Times New Roman',serif;font-size:12.8px">Kalmia angustifolia </i><span style="font-family:'Times New Roman',serif;font-size:12.8px">on</span><i style="font-family:'Times New Roman',serif;font-size:12.8px"> Picea mariana</i><span style="font-family:'Times New Roman',serif;font-size:12.8px">:</span><p class="MsoNormal" style="font-size:12.8px"><span style="font-family:'Times New Roman',serif">ref: <a href="http://www.ingentaconnect.com/content/saf/fs/1965/00000011/00000004/art00022" target="_blank">http://www.ingentaconnect.com/content/saf/fs/1965/00000011/00000004/art00022</a> but he does not mention <i>Ilex opaca.</i> However if you read Rice’s book any intra and inter specific phyto-chemical warfare, both above and below underground, maybe possible! Elroy Rice also wrote “Biological Control of Weeds and Plant Diseases” Oklahoma Press/Norman 1995, with which you are no doubt acquainted. Plus “Pest Control with Nature’s Chemicals” Oklahoma Press/Norman 1983.</span></p><p class="MsoNormal" style="font-size:12.8px"><span style="font-family:'Times New Roman',serif"><br></span></p><p class="MsoNormal" style="font-size:12.8px"><font face="Times New Roman, serif">PS- Haggie would like to be included in the listserve and his email address is included.</font></p><p class="MsoNormal" style="font-size:12.8px"><font face="Times New Roman, serif">Rick</font></p></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Sep 28, 2015 at 6:27 AM, Marc Imlay <span dir="ltr"><<a href="mailto:ialm@erols.com" target="_blank">ialm@erols.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="#0563C1" vlink="#954F72"><div><p><b><span style="font-size:12.0pt;font-family:"Arial",sans-serif">Any response for Tom and Jan?<u></u><u></u></span></b></p><p class="MsoNormal"><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:blue">Marc Imlay, PhD, </span></b><b><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:blue">Chair, Biological control working Group </span></b><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#1f497d"> </span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><u></u><u></u></span></p><p class="MsoNormal"><b><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:blue">Conservation biologist, Park Ranger Office, Non-native Invasive Plant Control coordinator.</span></b><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:blue"><br></span></b><b><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:blue"><a href="tel:%28301%29%20442-5657" value="+13014425657" target="_blank">(301) 442-5657</a> cell </span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#1f497d"><a href="mailto:ialm@erols.com" title="blocked::mailto:ialm@erols.com" target="_blank"><span style="color:blue">ialm@erols.com</span></a><b><br></b></span><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:blue">Natural and Historical Resources Division<br>The Maryland-National Capital Park and Planning Commission<br></span></b><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#1f497d"><a href="http://www.pgparks.com/" title="blocked::http://www.pgparks.com/
blocked::http://www.pgparks.com/
blocked::http://www.pgparks.com/
blocked::blocked::blocked::http://www.pgparks.com/
blocked::blocked::http://www.pgparks.com/
blocked::http://www.pgparks.com/
blocked::http://www.pgpa" target="_blank"><span style="font-family:"Calibri",sans-serif;color:blue;text-decoration:none">www.pgparks.com</span></a></span></b><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:blue"> </span></b><b><span style="font-size:10.0pt;font-family:"Times New Roman",serif;color:blue"> </span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><u></u><u></u></span></p><p><b><span style="font-size:12.0pt;font-family:"Arial",sans-serif"><u></u> <u></u></span></b></p><p><u></u> <u></u></p><p><u></u> <u></u></p><p>-----Original Message-----<br>From: tomnjan2 [mailto:<a href="mailto:tomnjan2@comcast.net" target="_blank">tomnjan2@comcast.net</a>] <br>Sent: Monday, September 28, 2015 12:16 AM<br>To: Marc Imlay <<a href="mailto:ialm@erols.com" target="_blank">ialm@erols.com</a>><br>Subject: Stilt grass question</p><p><u></u> <u></u></p><p>Hi Marc, <u></u><u></u></p><p>Tom (Crone) and I were walking around the back end of Greenbelt Park today. He was checking on some multiflora rose he'd cut earlier as well stilt grass he cut. But I noticed something I hadn't before. There were large swathes of stilt grass that had bare patches within those areas. The common denominator was Holly tree leaf shed. We started searching elsewhere and found the same correlation. The stilt grass totally avoided wherever the dropped holly leaves landed. Have you seen this before, or know if there's a specific chemical in the leaf that inhibits or kills the grass? Or some other symbiotic relationship creating the inhibition? I'm really curious to know. As we were driving out of the park, I started looking at the mountain laurel and what I saw didn't seem to be surrounded by stilt grass either.<u></u><u></u></p><p><u></u> <u></u></p><p>thanks<u></u><u></u></p><p>Jan Steiner<u></u><u></u></p><p><u></u> <u></u></p><p>Sent from my iPad=<u></u><u></u></p></div>
<br><br>
<hr style="border:none;color:#909090;background-color:#b0b0b0;min-height:1px;width:99%">
<table style="border-collapse:collapse;border:none">
<tbody><tr>
<td style="border:none;padding:0px 15px 0px 8px">
<a href="https://www.avast.com/antivirus" target="_blank">
<img border="0" src="http://static.avast.com/emails/avast-mail-stamp.png" alt="Avast logo">
</a>
</td>
<td>
<p style="color:#3d4d5a;font-family:"Calibri","Verdana","Arial","Helvetica";font-size:12pt">
This email has been checked for viruses by Avast antivirus software.
<br><a href="https://www.avast.com/antivirus" target="_blank">www.avast.com</a>
</p>
</td>
</tr>
</tbody></table>
<br>
</div><br>_______________________________________________<br>
MAIPC mailing list<br>
<a href="mailto:MAIPC@lists.maipc.org">MAIPC@lists.maipc.org</a><br>
<a href="http://lists.maipc.org/listinfo.cgi/maipc-maipc.org" rel="noreferrer" target="_blank">http://lists.maipc.org/listinfo.cgi/maipc-maipc.org</a><br>
<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div>IVM Partners, Inc.</div><div>P.O. Box 9886</div><div>Newark, DE 19714-4986</div><div><a href="http://www.ivmpartners.org" target="_blank">www.ivmpartners.org</a></div><div>office: 302-738-9079</div><div>cell: 302-299-5919</div><div> </div><div>IVM Partners is a 501-C-3 non-profit corporation operated exclusively for
charitable, scientific, literary, and educational purposes to develop, educate
professionals and the public with respect to, and apply best vegetation
management and conservation practices and related activities.</div></div></div></div>
</div>