Title: Assessment of potential economic and environmental impacts caused by Phytophthora ramorum in Europe
Author: Kehlenbeck, Hella
Date: 2008
Source: In: Frankel, Susan J.; Kliejunas, John T.; Palmieri, Katharine M., tech. coords. 2008. Proceedings of the sudden oak death third science symposium. Gen. Tech. Rep. PSW-GTR-214. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. pp. 265-267
Station ID: GTR-PSW-214
Description: Economic and environmental impacts of Phytophthora ramorum in Europe were evaluated within the European Union framework 6 project on “Risk Analysis for P. ramorum a pathogen threat to Europe” (RAPRA). Impact assessment was conducted according to three different scenarios: 1. “Nursery System” - describes losses occurring in nurseries where special growing conditions and trade with plant material influence spread and dimension of the disease, 2. “Northern European Tree Host System” - based on observations in the United Kingdom, the Netherlands and Germany where infections of trees (beech, red oak) at forest or park sites only occur, when Rhododendron as a foliage host is present to a certain extent and 3. “Southern European Tree Host System” where a potential foliage host is Quercus ilex growing as an understory plant in combination with susceptible tree hosts. Taking climatic conditions favourable for the pathogen, distribution of host plants and pathogen distribution into account, the present economic and environmental impact in Europe is minimal to moderate. Potential impacts depend on the host system: for nurseries, facing higher costs for hygiene measures, treatments of plant material and trade impacts, no changes are expected in the future as long as basic conditions like plant health regulations are not altered noticeable. In the Northern European Tree Host System” present impacts are moderate and restricted to few areas where Rhododendron are associated with tree hosts and environmental impact is caused. The potential impact is expected to be not more than moderate as long as no widely distributed foliar hosts of Northern European forests occur. In the “Southern European Tree Host System” present impacts are minimal since the pathogen does not occur in the environment. But here potential impact is assumed major if P. ramorum would be introduced and spread in the unique Mediterranean laurel and Q. ilex forests.
Keywords: Phytophthora ramorum, sudden oak death, economic impact, environmental
impact, plant health
View and Print this Publication (182 KB)
Publication Notes:
- 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.
- You may send email to pubrequest@fs.f
ed.us to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility
Citation
Kehlenbeck, Hella 2008. Assessment of potential economic and environmental impacts caused by Phytophthora ramorum in Europe. In: Frankel, Susan J.; Kliejunas, John T.; Palmieri, Katharine M., tech. coords. 2008. Proceedings of the sudden oak death third science symposium. Gen. Tech. Rep. PSW-GTR-214. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. pp. 265-267.