Dear Enrico,
I often see similar bumps on European beech and have
identified them as sphaeroblasts, which are thought to develop from
dormant buds. In place of a shoot, a ball of wood develops, encased in
bark. A sphaeroblast can be easily detached with a mallet etc., since
its woody connection to the stem is very narrow. The large sphaeroblast
in the attached picture shows an arrow pointing towards the woody
connection on the proximal side. Some of the bark has been pared away
with a knife to expose this connection. The picture also shows wood
exposed on the proximal side (with partial occlusion), perhaps because
of an old injury or as a result of bark dieback. Similar canker-like
areas can be seen on the bumps in John McLaughlin's photos but I doubt
whether these bumps are sphaeroblasts, since their close alignment is
unlikely to correspond with the positions of dormant buds.
Small bumps
on American beech can also be induced by the scale insect Xylococculus
betulae, which penetrates as far as the cambial zone (especially in the
aftermath zones of beech bark disease [see Dave Houston's article in J.
For., 73(10), 1975]. I think that they usually look rougher and corkier
than the bumps in John's photos but my experience of this insect has
been limited to looking at photos and to two brief visits to the
USA.
Kind regards,
David
-----Original Message-----
From:
rg70200-forpath-bounces(a)lists.iufro.org
[mailto:rg70200-forpath-bounces@lists.iufro.org]On Behalf Of Bonello,
Pierluigi
Sent: 28 January 2013 18:17
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://cmib.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? Click here!
From: Diana Saintignon
<saintignon.1(a)buckeyemail.osu.edu>
Date: Monday, January 28, 2013 12:41
PM
To: "Showalter, David N." <showalter.53(a)osu.edu>, Pierluigi Bonello
<bonello.2(a)osu.edu>, Dan Herms <herms.2(a)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
Dear all,
Please don't forget to send your abstract for the scientific workshop on "Vulnerability and Risk Management in Planted Forests" to be held from 16-18 May 2013 in Bordeaux, France. The deadline for abstract submission is 31 January.
The workshop will cover a range of topics including vulnerability of exotic tree plantations to various disturbance issues, susceptibility of tree monocultures, exposure of planted forests to invasive pests, development of integrated risk analyses and management systems adapted to plantation forests.
Abstracts for oral or poster presentations can be submitted online until 31 January 2013 at:
http://www.efiatlantic.efi.int/portal/2013_icpf/abstract_submission/
Registration is now open at:
http://www.efiatlantic.efi.int/portal/2013_icpf/registration/
Apologies for cross-posting.
We look forward to seeing you in Bordeaux.
Hervé Jactel
Email: Herve.Jactel(a)pierroton.inra.fr
________________________________
This e-mail and any attachments may contain information which is confidential or subject to copyright. If you receive this e-mail in error, please delete it.
Scion does not accept responsibility for anything in this e-mail which is not provided in the course of Scion's usual business or for any computer virus, data corruption, interference or delay arising from this e-mail.
Dear Colleagues:
On behalf of the Scientific and Organizing Committees for the conference “Vegetation Response to Climate Change and Air Pollution – Unifying Evidence and Research across Northern and Southern Hemisphere” organized by the IUFRO Research Group 7.01. “Impacts of Air Pollution and Climate Change on Forest Ecosystems” we invite scientists, managers and decision makers interested in the topic of the conference to visit the revised Website: <http://www.iufro2013.ufop.br/> http://www.iufro2013.ufop.br/.
Pre-registration and abstract submission will start on 1 February 2013. For all other deadlines, please see: http://www.iufro2013.ufop.br/index.php/2012-10-15-13-45-25/deadlines.
Please note that a location of the conference has been changed from Rio de Janeiro to Ilhéus in Bahia, Brazil.
We are looking forward to welcoming you in Illheus!
Andrzej Bytnerowicz
===========================
Dr. Andrzej Bytnerowicz
Senior Scientist
USDA Forest Service
Pacific Southwest Research Station
4955 Canyon Crest Drive
Riverside, CA 92507, USA
tel. 951-680-1562
Upcoming event of IUFRO Unit 7.02.04 viruses and phytoplasma
http://dpg.phytomedizin.org/de/plant-protection-and-plant-health-in-europe/
Topic: Virus and phytoplasma diseases of forest and
urban trees
Date: on Wedneday, 29 th of May, a Satellite
meeting
Frame: within the 5th International Symposium on Plant
Protection and Plant Health in Europe
Organizing partners: jointly organised by DPG, ALVA, JKI, IAPPS, IUBS and
COST
Coordiantor: Prof. Dr. Carmen Buettner
Humboldt-Universität zu Berlin
Devision Phytomedicine
Faculty for Agriculture and Horticulture
Deadline: End: 28.02.2013 (The deadline of submission and
upload of proposals for contributions (Title, authors and Abstracts) was
extented to 28.02.2013)
Registration:
<http://dpg.phytomedizin.org/de/plant-protection-and-plant-health-in-europe/
the-symposium/fees/>
http://dpg.phytomedizin.org/de/plant-protection-and-plant-health-in-europe/t
he-symposium/fees/
Dear Colleagues,
we invite you to take part in the second scientific satellite meeting of
Unit 7.02.04 on viruses and phytoplasma of forest and urban trees in May
29th within the 5th International Symposium on plant protection and plant
health in Europe May 27 29, 2013 in Berlin, Germany and participate in the
sessions and round tables.
The focuse will lay on all different issues on virus and phytoplasma
diseases of forest and urban trees. The topic of the meeting will bring
innovative developments, methods and ideas, new viruses and risk assessment
and management together.
Any presentation on the following keywords is welcome:
· monitoring, visual survey,
· detection tools, detection steps,
· known pathogens, unknown agents,
· risk assessment and control
· epidemiological and ecological evidence,pathogen transmission,
· economic importance, seed quality, seedling quality, wood quality
· certification of seeds and plants
Participants will have the option to take part in the 5th International
Symposium on Plant Protection and Plant Health in Europe under reduced
participation fee. The topic of the symposium will be « Endophytes for plant
protection: the state of the art
Location: This three-day symposium will be held at the traditional building
of the Faculty of Agriculture and Horticulture, Lentzeallee
55, 14195 Berlin (Dahlem), Germany.
Accommodation: Berlin offers a large number of hotels. For special offers
please see the Symposium website.
Discovering Berlin: A number of opportunities will be available for you to
explore the German capital on your own (see symposium website).
Hi all,
I am forwarding a message from Hervé Jactel (Deputy Coordinator 7.03, Forest Entomology):
The next International Congress on Planted Forest (ICPF 2013) will take place in May 2013, in Estoril, Portugal. A satellite scientific workshop on "Vulnerability and Risk Management in Planted Forests" will be held from 16-18 May 2013 in Bordeaux, France. IUFRO Divisions 7 (Forest Health) and 8 (Environment) co-sponsor this event.
The workshop will cover a range of topics including vulnerability of exotic tree plantations to various disturbance issues, susceptibility of tree monocultures, exposure of planted forest to invasive pests, development of integrated risk analyses and management systems adapted to plantation forests.
Registration is now open at:
http://www.efiatlantic.efi.int/portal/2013_icpf/registration/
Abstracts can be submitted online until 31 January 2013 at:
http://www.efiatlantic.efi.int/portal/2013_icpf/abstract_submission/
Background
Globally, planted forests represent about 7 percent of the world's total forest area, with an increasing area in all continents (FAO, 2011). It is forecasted that by 2050 the majority of the wood and fibre supply will originate from planted forests. Planted forests are commonly composed of pure, even-aged stands of fast-growing tree species. They are among the most productive forest ecosystems and planted forests are expected to play an important role in bio-based economies as well as contributing to climate change mitigation by way of carbon sequestration or bioenergy production. However, because planted forests are commonly managed as monocultures, often of exotic tree species, they may be prone to pest damage. Evidence is accumulating that suggests a positive relationship between tree species diversity and forest resistance to pests and pathogens, and alien tree species may be more exposed to pest species due to a lack of coevolution. It remains also uncertain whether the management of forests as pure and even-aged stands might increase the risk of wind and fire damage. There is therefore an urgent need to better evaluate the biotic and abiotic risks in planted forests and to decipher the underlying mechanisms of their specific susceptibility. This information will help foresters to adapt the design and management of planted forests in the face of global change uncertainties.
The members of scientific committee are Hervé Jactel (IUFRO Division 7, email Herve.Jactel(a)pierroton.inra.fr) Jean-Michel Carnus (Coordinator, IUFRO Division 8), and Eckehard Brockerhoff (Coordinator, IUFRO Division 7).
The organizing committee is made up of representatives of IUFRO, the European Forest Institute (EFI), the French National Institute of Agronomical Research (INRA), the French Ministry of Agriculture, Food and Forestry (MAAF), the Regional Forest Owner Centre, the Aquitaine Regional Council, the Regional Association for Forest Fire Prevention.
________________________________
This e-mail and any attachments may contain information which is confidential or subject to copyright. If you receive this e-mail in error, please delete it.
Scion does not accept responsibility for anything in this e-mail which is not provided in the course of Scion's usual business or for any computer virus, data corruption, interference or delay arising from this e-mail.
Sesión IUFROLAT "Amenazas a la Salud Forestal"
El Tercer Congreso IUFRO Latinoamericano (IUFROLAT) a realizarse en San José, Costa Rica del 12 a 15 de Junio del 2013.
La división 7 del IUFRO invita contribuciones a la sesión "Amenazas a la Salud Forestal - Plagas e Enfermedades Forestales, Invasiones Biológicas, la Contaminación del Aire y Cambio Climático".
La fecha limite para la entrega de resúmenes (presentación oral o afiches): 31 de Diciembre del 2012. Para la entrega de resúmenes, registro e información del congreso, consultar a http://web.catie.ac.cr/iufrolat/IufroLat_ing.htm.
Si le interesa contribuir a la sesión, por favor informar a los organizadores Karl Thunes (CATIE/Instituto Noruego para Bosque y Paisaje, correo electrónico thk(a)skogoglandskap.no<mailto:thk@skogoglandskap.no>) y Ecki Brockerhoff (IUFRO / Scion, correo electrónico eckehard.brockerhoff(a)scionresearch.com<mailto:eckehard.brockerhoff@scionresearch.com>).
Como parte de las actividades del congreso, se realizará una gira sobre salud forestal, la participación es voluntaria. La gira será de tres días y está bajo responsabilidad de los organizadores.
El congreso IUFROLAT 2013 es una colaboración entre The International Union of Forest Research Organizations (IUFRO) y Centro Agronómico Tropical de Investigación y Enseñanza (CATIE) en asociación con La Red Iberoamericana de Bosques Modelo (RIABM), FAO y varios miembros IUFRO de la región.
Ayuda financiera para participantes de América Latina está disponible en http://web.catie.ac.cr/iufrolat/IufroLat_becas_ing.htm.
El comité responsable para la sesión "Amenazas a la Salud Forestal" esta integrado por: Karl Thunes, Ecki Brockerhoff, Andrzej Bytnerowicz, Jolanda Roux, Sandy Liebhold, y Juan Corley.
________________________________
This e-mail and any attachments may contain information which is confidential or subject to copyright. If you receive this e-mail in error, please delete it.
Scion does not accept responsibility for anything in this e-mail which is not provided in the course of Scion's usual business or for any computer virus, data corruption, interference or delay arising from this e-mail.
IUFROLAT session on 'Threats to Forest Health'
The Third IUFRO Latin American Congress (IUFROLAT) will take place in San Jose, Costa Rica from 12 - 15 June, 2013.
IUFRO Division 7 invites contributions to a session on "Threats to Forest Health - Forest Pests and Diseases, Biological Invasions, Air Pollution and Climate Change"
Deadline for submission of abstracts (for oral papers or posters): 31 December 2012.
For abstract submission, registration and information on the congress, visit http://web.catie.ac.cr/iufrolat/IufroLat_ing.htm
If you are interested in contributing to this session, please inform the session organisers Karl Thunes (CATIE / Norwegian Forest and Landscape Institute, email thk(a)skogoglandskap.no<mailto:thk@skogoglandskap.no>) and Ecki Brockerhoff (IUFRO / Scion, email eckehard.brockerhoff(a)scionresearch.com<mailto:eckehard.brockerhoff@scionresearch.com>).
Associated with this will be an optional 3-day post-congress tour on forest health, by the session organisers.
The IUFROLAT Congress 2013 is being organised jointly by The International Union of Forest Research Organizations (IUFRO) and the Tropical Agricultural Research and Higher Education Center (CATIE) and partnered by the Ibero American Model Forest Network (RIABM), FAO and several IUFRO member organizations in the region.
Financial assistance for participants from Latin America may be available, see
http://web.catie.ac.cr/iufrolat/IufroLat_becas_ing.htm
The "Threats to Forest Health" session committee includes: Karl Thunes, Ecki Brockerhoff, Andrzej Bytnerowicz, Jolanda Roux, Sandy Liebhold, and Juan Corley
________________________________
This e-mail and any attachments may contain information which is confidential or subject to copyright. If you receive this e-mail in error, please delete it.
Scion does not accept responsibility for anything in this e-mail which is not provided in the course of Scion's usual business or for any computer virus, data corruption, interference or delay arising from this e-mail.
Dear colleagues and friends,
The next International Congress of Plant Pathology (ICPP) will take
place in Beijing in August 2013. There will be several sessions dealing
with forest/tree pathogens during the congress. Following the congress
there will also be a three day Forest Pathology Field Tour.
Please visit the congress website for more information:
www.icppbj2013.org
You can find more information on the sessions under the "Organizers and
Speakers" section. Scroll to the bottom of the page to find more
information on the field tour.
The two main Tree Health session can be found under: "Management of
Forest Diseases"
The sessions consists of the following talks:
Session 1: Increasing Threats to Tree Health Management
Michael J. Wingfield, University of Pretoria South Africa, South
Africa
Topic: Plantation health management: challenges and opportunities
Angus Carnegie, Australia
Topic: Managing invasive pathogens: Puccinia psidii in Australia
Jason A. Smith, University of Florida, USA
Topic: Current efforts to understand the biology of and manage laurel
wilt in the United States
Paolo Gonthier, University of Torino, Italy
Topic: Population genetics and GIS based analyses as essential tools to
model biological invasions: the case of Heterobasidion irregulare in
Italy
Session 2: New Technologies and Disease Management in Forestry
Jan Stenlid, Swedish University of Agricultural Sciences (SLU), Sweden
Topic: Can genome sequencing transform our understanding of fungal
forest pathogens?
Manuel M. Mota, Dept. Biologia, Universidade de Évora,Portugal
Topic: Bursaphelenchus xylophilus: opportunities in comparative
genomics and molecular host–parasite interactions
Matteo Garbelotto, University of California-Berkeley, USA
Topic: Linking genotypic information to phenotypic characterization to
improve the prediction of emergent forest diseases
Giles Hardy, Murdoch University, Australia
Topic: The role of climate change and woodland and forest decline
syndromes in the South-west of Western Australia
We encourage you to attend the congress and field tour. The deadline
for submissions of abstracts is the 15th of January 2013.
Hope to see you there,
Jolanda Roux
Jolanda Roux (PhD)
Professor
DST/NRF Centre of Excellence in Tree Health Biotechnology (CTHB)
Tree Protection Co-operative Programme (TPCP)
Forestry and Agricultural Biotechnology Insitute (FABI)
University of Pretoria
Pretoria
South Africa
Tel: 012 420 3938/9
Cellular: 0829093202
Email: jolanda.roux(a)fabi.up.ac.za
KEEPING TREES HEALTHY
POSTAL ADDRESS
FABI
Private bag X20
Hatfield, Pretoria
0028, South Africa
ADDRESS FOR PHYSICAL DELIVERIES
FABI, University of Pretoria, Cnr. of Lynnwood and University Rds,
Hatfield, Pretoria, 0083, South Africa
I'm forwarding this advertisement for Matt Smith at UFlorida. Please send on to any qualified candidates interested in pursuing a PhD in fungal ecology. Note that the closing date is December 7, 2012.
I worked with Matt at UC Davis in Dave Rizzo's lab, and I think he'd be a great mentor to a motivated mycologist.
Cheers,
Djibo
James W. "Djibo" Zanzot, PhD
Post-Doctoral Teaching Fellow
Auburn University Department of Biological Sciences
Mail: 331 Funchess Hall
Office: 146 Funchess Hall
Phone: 334-844-7838
djibo(a)auburn.edu
Early Alert (2 Nov 2012)
Upcoming International Meeting – June 2014 in Colorado, USA
A joint international meeting of three groups: IUFRO 2.02.15 (Breeding and Genetic Resources of Five-Needle Pines), IUFRO 7.02.05 (Rusts of Forest Trees) and Strobusphere is being scheduled for June* 2014 in Colorado (USA). This will be the first time these three groups have met together to share research in genetics-pathology of five-needle pines. The conference will feature advances in gene conservation, genomics, rust resistance and biology, evolutionary dynamics and other related topics. There will be some joint sessions as well as concurrent sessions organized by each respective group for other topics of interest.
Visit the websites below for future updates on this meeting, or contact Richard Sniezko ( <mailto:rsniezko@fs.fed.us> rsniezko(a)fs.fed.us) Anna Schoettle ( <mailto:aschoettle@fs.fed.us> aschoettle(a)fs.fed.us) Richard Hamelin ( <mailto:rhamelin@NRCan.gc.ca> rhamelin(a)NRCan.gc.ca; Richard.hamelin(a)ubc.ca) or David Neale ( <mailto:dbneale@ucdavis.edu> dbneale(a)ucdavis.edu) . We are building a mailing list for this meeting, if interested please send your name and email address to Richard Sniezko ( <mailto:rsniezko@fs.fed.us> rsniezko(a)fs.fed.us)
2.02.15 – Breeding and genetic resources of five-needle pines
<http://www.iufro.org/science/divisions/division-2/20000/20200/20215/> http://www.iufro.org/science/divisions/division-2/20000/20200/20215/
Our Working Party on Breeding and Genetic Resources of Five-Needle Pines is concerned with research cooperation and exchange of information on all aspects of genetic research on the five-needle pines. This includes provenance and progeny testing, gene conservation, landscape genomics, breeding, species hybridization, clonal propagation and testing, tissue or cell culture, molecular genetics, and the genetics of host-pathogen interactions, as well as ecology, evolutionary dynamics and management of these species. Increasingly though we are using this knowledge to address issues related to climate change, land use pressure and conservation
7.02.05 – Rusts of forest trees
<http://www.iufro.org/science/divisions/division-7/70000/70200/70205/> http://www.iufro.org/science/divisions/division-7/70000/70200/70205/
Our Working Party aims to bring together scientists and investigators working on tree rusts. Our goal is to foster scientific discussion and exchanges relating to tree rust epidemiology, biology, host-pathogen interactions, resistance, control and management, and genomics. Our working group meets approximately once every 4 years in locations in Europe, North America or Asia. We usually meet in locations that allow us to discuss our scientific findings and have field trips in a friendly and relaxed environment which is conducive to exchanges and debates. We want to place a strong emphasis on participation of young investigators and students, as these meetings provide unique experiences to meet and exchange with the related community.
Strobusphere
<http://dendrome.ucdavis.edu/strobusphere/> http://dendrome.ucdavis.edu/strobusphere/
In North America, a collaborative effort among researchers has begun, starting with a multi-national <http://dendrome.ucdavis.edu/strobusphere/workshop2008.php> White Pine Genomic Resource Workshop held on October 22-23, 2008 at the Dorena Genetic Resource Center in Cottage Grove, OR. The objective of this workshop was to discover and identify research objectives, strengths, scope and resources among the various working agencies. This collaborative effort is designed as a foundation to build wider scientific participation with a scope that spans molecular to landscape models, from host to pathogens and alternative hosts. The Strobusphere working group arose from this 2008 workshop. A notable work in progress: the sugar pine genome sequence is slated for completion in 2013 by PineRefSeq project ( <http://pinegenome.org/pinerefseq/> http://pinegenome.org/pinerefseq/) The sugar pine genome will be mostly finished and released to the public before the meeting in June 2014.
NOTE: there will be some joint sessions as well as concurrent sessions organized by each respective group for other topics of interest
IUFRO: Intenational Union of Forest Research Organizationsn - "the" global network for forest science cooperation
*The dates of the June meeting are tba (be will be the 2nd or 3rd week of June 2014).
