[MAIPC] Ailanthus Herbivory

Tue Jul 6 08:51:22 PDT 2021

The photo is 100% Ailanthus altissima. The glands on the leaf base are a distinct feature as are the smooth edges. All of the other tree species suggested as an ID has serrated edged leaves.

The damage is likely caused by a generalist feeding leaf beetle in the Chrysomelidae family.

Kristen

From: MAIPC <maipc-bounces at lists.maipc.org> On Behalf Of Scamardella, David
Sent: Monday, July 5, 2021 4:58 PM
To: Nathan Hartshorne <nshartshorne at gmail.com>; Richard Gardner <rtgardner3 at yahoo.com>
Cc: MAIPC Listserve (maipc at lists.maipc.org) <maipc at lists.maipc.org>
Subject: Re: [MAIPC] Ailanthus Herbivory

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Butternut bark does stay smooth until about 4 to 5'' diameter:

[cid:image001.png at 01D7725D.22B12A40]

Dave Scamardella | Forester
PA Department of Conservation and Natural Resources
Buchanan Forest District
25185 Great Cove Road | McConnellsburg, PA  17233
Phone: 717-485-3148 X207 | Fax: 717-485-9283
www.dcnr.pa.gov/Conservation/ForestsAndTrees/ManagingYourWoods<https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.dcnr.pa.gov%2FConservation%2FForestsAndTrees%2FManagingYourWoods&data=04%7C01%7Ckwickert%40wvda.us%7Cfc63940773ad47cf50d408d940912c12%7C70f25d07e7a24cc5a1564cfd77b95116%7C0%7C0%7C637611815110404332%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&sdata=RfLMHZHh8Pr9T6pjEyXlKUBRIdeD9PErudTE99rIfXk%3D&reserved=0>
cell:  717-860-0646

From: MAIPC <maipc-bounces at lists.maipc.org<mailto:maipc-bounces at lists.maipc.org>> On Behalf Of Nathan Hartshorne
Sent: Monday, July 5, 2021 4:32 PM
To: Richard Gardner <rtgardner3 at yahoo.com<mailto:rtgardner3 at yahoo.com>>
Cc: MAIPC Listserve (maipc at lists.maipc.org<mailto:maipc at lists.maipc.org>) <maipc at lists.maipc.org<mailto:maipc at lists.maipc.org>>
Subject:  Re: [MAIPC] Ailanthus Herbivory

What looks like tree of heaven, has similar bark, and is tree-sized?  I will do some comparative looking.  I only know the various sumacs and black walnut.

On Mon, Jul 5, 2021 at 10:40 AM Richard Gardner <rtgardner3 at yahoo.com<mailto:rtgardner3 at yahoo.com>> wrote:
That is not Ailanthus because the compound leaf is not odd pinnate, the notches are wrong and it is too rough.

On Monday, July 5, 2021, 01:06:57 PM EDT, Nathan Hartshorne <nshartshorne at gmail.com<mailto:nshartshorne at gmail.com>> wrote:

The most likely one seemed to be the mite, except it's also called "leaf curl mite" not "patterned hole mite" so I'm still at a loss as to what could do such a distinctive look on all the leaves. Obviously it's not deer, and the moths seemed wrong too based on what little imagery I could find and general knowledge of feeding behavior (which I realize there must be more exceptions than moths I know)

On Mon, Jul 5, 2021 at 9:19 AM Jackson, David Robert <drj11 at psu.edu<mailto:drj11 at psu.edu>> wrote:

Could be ailanthus webworm.

https://en.wikipedia.org/wiki/Ailanthus_webworm<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FAilanthus_webworm&data=04%7C01%7Ckwickert%40wvda.us%7Cfc63940773ad47cf50d408d940912c12%7C70f25d07e7a24cc5a1564cfd77b95116%7C0%7C0%7C637611815110404332%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&sdata=k8eS%2BhgVStnmntlG7ssMFS25H1l0IaybUIIkI0r33%2FY%3D&reserved=0>

Dave

David R. Jackson

Forest Resources Educator

Penn State Extension-Centre County

Willowbank Building, Room 322, 420 Holmes Street

Bellefonte, PA 16823

drj11 at psu.edu<mailto:drj11 at psu.edu>         814-355-4897(office)

Forests and Wildlife Extension:  https://extension.psu.edu/forests-and-wildlife<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fextension.psu.edu%2Fforests-and-wildlife&data=04%7C01%7Ckwickert%40wvda.us%7Cfc63940773ad47cf50d408d940912c12%7C70f25d07e7a24cc5a1564cfd77b95116%7C0%7C0%7C637611815110414288%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&sdata=Cri0YzS40sM2AB0itMHQbwTqsic7k%2FAJpsgm2d%2BI6N0%3D&reserved=0>

From: MAIPC <maipc-bounces at lists.maipc.org<mailto:maipc-bounces at lists.maipc.org>> On Behalf Of Nathan Hartshorne
Sent: Friday, July 2, 2021 7:29 PM
To: MAIPC Listserve (maipc at lists.maipc.org<mailto:maipc at lists.maipc.org>) <maipc at lists.maipc.org<mailto:maipc at lists.maipc.org>>
Subject: [MAIPC] Ailanthus Herbivory

Anyone know what's eating this tree of heaven?

[cid:image002.png at 01D7725D.22B12A40]

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