You are here: Home
/ Publication Information
Title: Phytophthora ramorum
Author: Parke, J. L.; Rizzo, D. M.;
Source: Forest Phytophthoras 1(1). 10 p. [early view]
Publication Series: Scientific Journal (JRNL)
Description: P. ramorum Werres, De Cock, & Man in't Veld (2001) appears to be an exotic species introduced from an unknown origin to Europe and western N. America in the mid-1990s, likely on nursery plants (Mascheretti et al. 2008). In California and southwest Oregon, the pathogen spread to native oak and tanoak forests, where it causes lethal stem cankers ('sudden oak death&339;). More than a million trees have been killed (Meentemeyer et al. 2011). In Europe, where nurseries in over 20 countries reported P. ramorum, the disease on trees was limited to isolated stands of beech and oak associated with infected rhododendrons. In 2009, the pathogen began causing widespread mortality on Japanese larch timber plantations in the UK (Brasier & Webber 2010). International, national, state and county quarantines are in place to prevent the further spread of disease with nursery plants and to contain the infestation in forests. P. ramorum is unusual among forest Phytophthora species for its wide host range and infection of aerial plant parts.
Keywords: Phytophthora ramorum, forest Phytophthora, sudden oak death
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
XML: View XML
Parke, J. L.; Rizzo, D. M. 2011. Phytophthora ramorum. Forest Phytophthoras 1(1). 10 p. [early view] doi: 10.5399/osu/fp.1.1.1821
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility