<div dir="ltr">Siebold's Crabapple is a fairly widespread invasive in NJ. Entire fields can be taken over (like Callery Pear) and it's seedlings appear to be shade tolerant enough to persist in forests. It is most abundant in the piedmont, but plants can be found in low numbers throughout the state outside of the Pine Barrens.<div><br></div><div>-Mike</div><div><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr">Michael Van Clef, Ph.D.<div>Stewardship Director, Friends of Hopewell Valley Open Space</div><div>Program Director, New Jersey Invasive Species Strike Team</div><div>Principal, Ecological Solutions, LLC</div><div><br></div><div>Office: 609-730-1560</div><div>Mobile: 908-528-6674</div></div></div></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Dec 2, 2021 at 1:52 PM Pamela Roy <<a href="mailto:proy@appalachiantrail.org">proy@appalachiantrail.org</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">
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Hi Patricia,</div>
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I have seen <a href="https://gobotany.nativeplanttrust.org/species/malus/sieboldii/" title="https://gobotany.nativeplanttrust.org/species/malus/sieboldii/" target="_blank">
Malus sieboldii</a> really spread across meadows here in southeast Pennsylvania- I would consider it invasive, but perhaps less so than Callery pear. <span style="background-color:rgb(255,255,255);display:inline">There was a large mature planting
on one side of our park, and we found it popping up in meadows across the park.<span> </span></span> I have actively removed seedlings from the meadow and killed mature trees in the forested edges. This species is a little easier to identify due to the shape
of the leaves, which is similar to hawthorns, especially on the seedlings. I wasn't aware of this finding of Tallamy's at the time.</div>
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<p style="margin:0in;font-size:12pt;font-family:Calibri,sans-serif"><b><span style="font-size:15pt;font-family:Arial,sans-serif;color:rgb(0,101,163)">Pamela Roy
</span></b><span style="font-family:Arial,sans-serif">(She/her/hers)</span><b><span style="font-size:15pt;font-family:Arial,sans-serif;color:rgb(0,101,163)"> </span></b></p>
<p style="margin:0in;font-size:12pt;font-family:Calibri,sans-serif"><b><span style="font-size:11pt;font-family:Arial,sans-serif;color:black">Visual Resource Inventory Project Manager </span></b></p>
<p style="margin:0in;font-size:12pt;font-family:Calibri,sans-serif"><span style="font-size:11pt;font-family:Arial,sans-serif;color:black">Appalachian Trail Conservancy<br>
Website: </span><a href="https://appalachiantrail.org" target="_blank"><span style="font-size:11pt;font-family:Arial,sans-serif">appalachiantrail.org</span></a><span style="font-size:11pt;font-family:Arial,sans-serif;color:black"> </span></p>
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<span style="font-size:11pt;font-family:Arial,sans-serif">Email: </span><a href="mailto:proy@appalachiantrail.org" target="_blank"><span style="font-size:11pt;font-family:Arial,sans-serif">proy@appalachiantrail.org</span></a><span style="font-size:11pt;font-family:Arial,sans-serif"> </span></p>
<p style="margin:0in;font-size:12pt;font-family:Calibri,sans-serif;line-height:115%">
<span style="font-size:11pt;font-family:Arial,sans-serif">Phone: </span><a href="tel:717.258.5771" target="_blank"><span style="font-size:11pt;font-family:Arial,sans-serif">267.485.5</span></a><span style="color:rgb(5,99,193);text-decoration:underline"><span style="font-size:11pt;font-family:Arial,sans-serif">930</span></span><span style="font-size:11pt;font-family:Arial,sans-serif"> </span></p>
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<div id="gmail-m_-44521357458887948divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> MAIPC <<a href="mailto:maipc-bounces@lists.maipc.org" target="_blank">maipc-bounces@lists.maipc.org</a>> on behalf of Greenberg, Patricia <<a href="mailto:Patricia.Greenberg@fairfaxcounty.gov" target="_blank">Patricia.Greenberg@fairfaxcounty.gov</a>><br>
<b>Sent:</b> Thursday, December 2, 2021 1:26 PM<br>
<b>To:</b> Nathan Hartshorne <<a href="mailto:nshartshorne@gmail.com" target="_blank">nshartshorne@gmail.com</a>><br>
<b>Cc:</b> MAIPC <<a href="mailto:maipc@lists.maipc.org" target="_blank">maipc@lists.maipc.org</a>><br>
<b>Subject:</b> Re: [MAIPC] Crab Apples Native Vx. Invasive</font>
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<span style="color:rgb(156,101,0);font-weight:bold">CAUTION:</span><span style="color:rgb(0,0,0);font-weight:bold"> This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is
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<p>Hi, </p>
<p>Thanks, Nathan for the feedback. That is interesting to know about Doug Tallamy’s finding. So, if its not as invasive as other tree species like callery pear, are others here in agreement that it can be ignored for the most part? Has
anyone found it to take over areas? I’ve only found it here and there and not dominating areas like callery pears tend to. Or is this an “it depends” conversation?
</p>
<p> </p>
<p>Thank you,</p>
<p> </p>
<p><b><span style="font-size:12pt;color:black">Patricia Pearl Greenberg<br>
Ecologist II</span></b><span style="font-size:12pt;color:black"></span></p>
<p><b><span style="font-size:12pt;color:black">Invasive Management Area Program Manager</span></b><span style="font-size:12pt;color:black"></span></p>
<p><i><span style="font-size:12pt;color:black">Natural Resource Branch</span></i></p>
<p><i><span style="font-size:12pt;color:black">Fairfax County Park Authority</span></i></p>
<p><i><span style="font-size:12pt;color:black">Office: 703-324-8673</span></i></p>
<p><i><span style="font-size:12pt;color:black">Fax: 703-324-3996</span></i></p>
<p><a href="mailto:patricia.greenberg@fairfaxcounty.gov" target="_blank"><span style="font-size:12pt">patricia.greenberg@fairfaxcounty.gov</span></a><span style="font-size:12pt;color:black"></span></p>
<p><i><span style="font-size:12pt;color:black">(She/Her)</span></i></p>
<p><i><span style="font-family:Arial,sans-serif;color:rgb(51,51,51)"> </span></i></p>
<p><i><span style="font-family:Arial,sans-serif;color:rgb(51,51,51)">ISA Certified Arborist,</span></i><i>
</i><i><span style="font-family:Arial,sans-serif;color:rgb(51,51,51)">MA-6067A</span></i><i></i></p>
<p><i><span style="font-family:Arial,sans-serif;color:rgb(51,51,51)">ISA Tree Risk Assessment Qualified</span></i></p>
<p><i><span style="font-size:12pt;color:black"> </span></i></p>
<p><i><span style="font-size:12pt;color:black"> </span></i></p>
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<p><b>From:</b> Nathan Hartshorne <<a href="mailto:nshartshorne@gmail.com" target="_blank">nshartshorne@gmail.com</a>> <br>
<b>Sent:</b> Wednesday, December 1, 2021 1:39 PM<br>
<b>To:</b> Greenberg, Patricia <<a href="mailto:Patricia.Greenberg@fairfaxcounty.gov" target="_blank">Patricia.Greenberg@fairfaxcounty.gov</a>><br>
<b>Cc:</b> MAIPC <<a href="mailto:maipc@lists.maipc.org" target="_blank">maipc@lists.maipc.org</a>><br>
<b>Subject:</b> Re: [MAIPC] Crab Apples Native Vx. Invasive</p>
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<p>I've struggled with this as well and spent awhile trying to get it right and never got anywhere. If I recall correctly, they hybridize, so it's a real spectrum that's hard to diagnose, and that one feature you mentioned didn't do much
for me. It doesn't help that at least some native nurseries don't even seem to realize this is a thing and it's just "malus spp." On the bright side, according to Tallamy, they are interchangeable as a host plant for caterpillars, at least in species numbers,
if not volume of insects.</p>
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<p>On Wed, Dec 1, 2021 at 12:47 PM Greenberg, Patricia <<a href="mailto:Patricia.Greenberg@fairfaxcounty.gov" target="_blank">Patricia.Greenberg@fairfaxcounty.gov</a>> wrote:</p>
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<p>Hi,</p>
<p> </p>
<p>Can anyone on this email group help respond to these questions:
</p>
<p>How do we best distinguish the American native crabapples from Asian ones? According to Flora of Virginia, it looks like a main character is thorn-like branches coming off of the American ones. Is there a better
“clincher” that you know of?</p>
<p> </p>
<p>Thank you,</p>
<p> </p>
<p><b><span style="font-size:12pt;color:black">Patricia Pearl Greenberg<br>
Ecologist II</span></b></p>
<p><b><span style="font-size:12pt;color:black">Invasive Management Area Program Manager</span></b></p>
<p><i><span style="font-size:12pt;color:black">Natural Resource Branch</span></i></p>
<p><i><span style="font-size:12pt;color:black">Fairfax County Park Authority</span></i></p>
<p><i><span style="font-size:12pt;color:black">Office: 703-324-8673</span></i></p>
<p><i><span style="font-size:12pt;color:black">Fax: 703-324-3996</span></i></p>
<p><span style="font-size:12pt;color:blue"><a href="mailto:patricia.greenberg@fairfaxcounty.gov" target="_blank">patricia.greenberg@fairfaxcounty.gov</a></span></p>
<p><i><span style="font-size:12pt;color:black">(She/Her)</span></i></p>
<p><i><span style="font-family:Arial,sans-serif;color:rgb(51,51,51)"> </span></i></p>
<p><i><span style="font-family:Arial,sans-serif;color:rgb(51,51,51)">ISA Certified Arborist,</span>
</i><i><span style="font-family:Arial,sans-serif;color:rgb(51,51,51)">MA-6067A</span></i></p>
<p><i><span style="font-family:Arial,sans-serif;color:rgb(51,51,51)">ISA Tree Risk Assessment Qualified</span></i></p>
<p><i><span style="font-size:12pt;color:black"> </span></i></p>
<p><i><span style="font-size:12pt;color:black"> </span></i></p>
<p><i><span style="font-size:12pt;color:black"> </span></i></p>
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<p> </p>
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