We use some essential cookies to make this website work.
We’d like to set additional cookies to understand how you use forestresearch.gov.uk, remember your settings and improve our services.
Preparing to search
Biotic factor that contributes to oak decline
Extensive research in France has shown that the basidiomycete Collybia fusipes is the cause of root rot on oak (mainly pedunculate oak and red oak) and is implicated in the process of oak decline.
Infection by Collybia is often associated with a deterioration of the crown of affected trees, and this fungus is most active in dry, free-draining soils. It is considered to be a primary pathogen and can attack the roots of vigorous trees although in the early stages disease develops slowly and only affects growth later in the infection process, sometimes after 30 years.
Cookies are files saved on your phone, tablet or computer when you visit a website.
We use 3 types of cookie. You can choose which cookies you're happy for us to use.
These essential cookies do things like remember your progress through a form. They always need to be on.
We use Google Analytics to measure how you use the website so we can improve it based on user needs. Google Analytics sets cookies that store anonymised information about: how you got to the site the pages you visit on forestresearch.gov.uk and how long you spend on each page what you click on while you're visiting the site
Some forestresearch.gov.uk pages may contain content from other sites, like YouTube or Flickr, which may set their own cookies. These sites are sometimes called ‘third party’ services. This tells us how many people are seeing the content and whether it’s useful.