World Library  
Flag as Inappropriate
Email this Article

Acute oak decline

Article Id: WHEBN0024483778
Reproduction Date:

Title: Acute oak decline  
Author: World Heritage Encyclopedia
Language: English
Subject: Forestry in the United Kingdom, Oak
Publisher: World Heritage Encyclopedia

Acute oak decline

Acute oak decline
Stem bleeding in a tree affected with Acute oak decline
Causal agents: thought to be caused by a bacterium
Hosts: Oaks
Distribution: United Kingdom

Acute oak decline is a disease that infects oak trees in the UK. It mainly affects mature oak trees of over 50 years old of both Britain's native oak species: the pedunculate oak (Quercus robur) and the sessile oak (Quercus petraea). The disease is characterised by the trees bleeding or oozing a dark fluid from small lesions or splits in their bark.[1] Unlike chronic oak decline, acute oak decline can lead to the death of trees within 4 to 5 years of symptoms appearing. The number of trees affected is not known but is thought to number in the low thousands, with a higher number of infected trees being found in the Midlands. It is thought to be caused by a bacterium; it is currently not known which species is involved, but scientists are actively trying to discover what is responsible.[2] It is thought that at least three genera of bacteria are responsible.[3][4]

In some instances the disease is accompanied by insects attacking the trees too, particularly the Agrilus beetle, (Agrilus biguttatus). These are not thought to be the cause of the disease but rather they are opportunistically taking advantage of already weakened trees; such infestations further weaken and can hasten the death of trees.[1]

See also


  1. ^ a b "Symptoms of chronic oak decline". Forest Research. Retrieved 2009-09-26. 
  2. ^ "What is acute oak decline?". Forest research. Retrieved 2009-09-26. 
  3. ^ "Scientists Identify Bacteria in Loughborough Trees affected by Acute Oak Decline". Loughborough News. Retrieved 2009-09-26. 
  4. ^ Kinver, Mark (28 April 2010). "'"Oak disease 'threatens landscape. BBC News. Archived from the original on 29 April 2010. Retrieved 29 April 2010. 

Further reading

  • Brady, C.; Denman, S.; Kirk, S.; Venter, S.; Rodríguez-Palenzuela, P.; Coutinho, T. (2010). "Description of Gibbsiella quercinecans gen. nov., sp. nov., associated with Acute Oak Decline". Systematic and Applied Microbiology 33 (8): 444–450.  
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.