Re: [IUFRO RG 7.02 FORPATH] Bumps on Beech

Our Entomologist think they could be from an insect. A good way to possible check would be to cut them open and see if there are insect adults or larvae inside the structures. One of these photo images indicated it was Patagonia gall, which is apparently common on southern beech trees. This one website (http://www.news.wisc.edu/newsphotos/lagerYeast11.html) suggests it maybe a yeast and not insect. Again, if insect in origin, I would think there would be some evidence of insects (eggs, larvae, or adults) inside the galls. Hope this helps. Margaret T. Mmbaga, PhD. Research Professor, Tennessee State University, Collegeof Agriculture, Otis Floyd Research Center 472 Cadillac Lane McMinnville TN 37110USA Tel: (931) 815-5143 Fax:(931) 668-3134 Email: mmmbaga(a)tnstate.edu ------------------------------------------------------------------------ *From:* rg70200-forpath-bounces(a)lists.iufro.org [rg70200-forpath-bounces(a)lists.iufro.org] On Behalf Of McLaughlin, John (MNR) [john.mclaughlin(a)ontario.ca] *Sent:* Tuesday, January 29, 2013 7:56 AM *To:* Bonello, Pierluigi; forpath *Subject:* Re: [IUFRO RG 7.02 FORPATH] Bumps on Beech Hello Enrico, Last year I found somewhat similar growths on beech here in Ontario. I had never noticed such things before so I took some photos. I suspected that they were responses to some kind of insect attack, but I did not pursue it any further, e.g. by dissections or isolations. I wonder of these share the same cause as the ones you posted? Best regards, John John A. McLaughlin, PhD Forest Research Pathologist Ontario Forest Research Institute 1235 Queen St. E. Sault Ste. Marie, ON Canada P6A 2E5 tel: +1 705-946-7419 cell: 705-542-2851 John.McLaughlin(a)ontario.ca <mailto:John.McLaughlin@ontario.ca> http://ontario.ca/ofri *From:*rg70200-forpath-bounces@lists.iufro.org [mailto:rg70200-forpath-bounces@lists.iufro.org] *On Behalf Of *Bonello, Pierluigi *Sent:* 28-Jan-13 13:17 *To:* forpath *Subject:* [IUFRO RG 7.02 FORPATH] FW: Bumps on Beech Dear colleagues, I received these photos from one of my forest pathology students and I must admit I've never seen these things before. Can anyone help? Thanks! Enrico Pierluigi (Enrico) Bonello, Professor *Dept. of Plant Pathology* The Ohio State University Tel: (614) 688-5401 http://plantpath.osu.edu/bonello - http://esgp.osu.edu <http://esgp.osu.edu/>/ - http://cmib.osu.edu <http://cmib.osu.edu/> - http://caps.osu.edu <http://caps.osu.edu/> *Would you like to support my program to foster research on woody plant health with a tax-deductible charitable donation? ****C <https://www.giveto.osu.edu/igive/onlinegiving/search_results.aspx?fundnum=311059>lick here <https://www.giveto.osu.edu/igive/onlinegiving/search_results.aspx?fundnum=311059>! <https://www.giveto.osu.edu/igive/onlinegiving/search_results.aspx?fundnum=311059>* *From: *Diana Saintignon &lt;saintignon.1(a)buckeyemail.osu.edu <mailto:saintignon.1@buckeyemail.osu.edu>> *Date: *Monday, January 28, 2013 12:41 PM *To: *"Showalter, David N." &lt;showalter.53(a)osu.edu <mailto:showalter.53@osu.edu>>, Pierluigi Bonello &lt;bonello.2(a)osu.edu <mailto:bonello.2@osu.edu>>, Dan Herms &lt;herms.2(a)osu.edu <mailto:herms.2@osu.edu>> *Subject: *Bumps on Beech While I was at Harvard I found this beech tree with some interesting wart-like mounds on its bark. Is this normal for some beeches, or could it potentially be a paper topic? Do you know what it is? Thanks! -Diana _______________________________________________ IUFRO Mailing List To post a message to all list members, send email to: rg70200-forpath(a)lists.iufro.org List info and Archive: http://www.iufro.org/science/iufro-mailing-lists/overview/