Featured Research

from universities, journals, and other organizations

Comprehensive report on sudden oak death

Date:
December 29, 2010
Source:
USDA Forest Service, Pacific Southwest Research Station
Summary:
Scientists have prepared a comprehensive report on the exotic invasive, quarantine sudden oak death pathogen. The report includes a history of sudden oak death, identification and distribution of the disease, epidemiology and modeling, management and control and economic and environmental impacts.

Sudden oak death. Phytophthora ramorum in Pacific madrone host.
Credit: Joseph O'Brien, USDA Forest Service, Bugwood.org/http://creativecommons.org/licenses/by/3.0/us/

Synthesizing more than 10 years of cooperative research on the exotic invasive, quarantine sudden oak death pathogen, the USDA Forest Service's Pacific Southwest Research Station (PSW) recently published "Sudden Oak Death and Phytophthora ramorum: A Summary of the Literature." This 181-page comprehensive report covers a wide range of topics, including a history of sudden oak death, identification and distribution of the disease, epidemiology and modeling, management and control, and economic and environmental impacts.

Compiled by retired U.S. Forest Service Pacific Southwest regional forest pathologist John T. Kliejunas, the report summarizes research findings published by hundreds of scientists from U.S. and international government agencies and universities, many supported by PSW's extramural Sudden Oak Death research program.

"The sudden oak death pathogen is a concern to society since it damages cherished and economically valuable trees, forest ecosystems, ornamental nursery plants and is an emerging, exotic microbe," said Susan Frankel, PSW's sudden oak death research manager. "This book distills a decade of discovery, exploration and struggle to contain and understand the pathogen's behavior and impact in wildlands, gardens, and nurseries worldwide. Regulators, forest pathologists, and the nursery industry are utilizing this information to work together to prevent both pathogen spread and future exotic pest introductions."

The pathogen was new to science when identified in 2000. Information about the disease is scattered in scientific journals, government reports and newspaper articles, so this volume provides a cohesive narrative of what is known about the sudden oak death pathogen for a professional audience, college students and others interested in the biology and management of this pathogen.

Key results include: advances in genetics and diagnostics that show the pathogen has inadvertently been shipped long distances on nursery stock and can escape infested nurseries and infect adjacent forest vegetation; pesticide and other treatments for high-value trees and nursery stock; waterway early-detection monitoring techniques; and the discovery of several new related Phytophthora species.

Sudden oak death first appeared in the mid-1990s when an unusual die-off of coast live oaks and tanoaks was observed in Marin County, Calif. In coastal California, the pathogen has killed over a million trees, many in densely populated neighborhoods. The pathogen threatens the health of U.S. oak forests in the Midwest and East. Quarantined in the U.S., European Union, Canada and more than 60 other countries, it has been detected on rhododendron, camellia and other ornamental nursery plants in North America and Europe; nursery detections trigger mandatory eradication. Recent outbreaks in the United Kingdom on Japanese larch are requiring the clear-cutting of thousands of trees. The risk to U.S. larch and other conifer species is not yet known. Additionally, recent detections in rivers in the Pacific Northwest and Southern U.S. are a threat that could lead to pathogen establishment in new areas.

Report: Sudden Oak Death and Phytophthora ramorum: A Summary of the Literature http://www.fs.fed.us/psw/publications/documents/psw_gtr234/.


Story Source:

The above story is based on materials provided by USDA Forest Service, Pacific Southwest Research Station. Note: Materials may be edited for content and length.


Cite This Page:

USDA Forest Service, Pacific Southwest Research Station. "Comprehensive report on sudden oak death." ScienceDaily. ScienceDaily, 29 December 2010. <www.sciencedaily.com/releases/2010/12/101227143813.htm>.
USDA Forest Service, Pacific Southwest Research Station. (2010, December 29). Comprehensive report on sudden oak death. ScienceDaily. Retrieved April 23, 2014 from www.sciencedaily.com/releases/2010/12/101227143813.htm
USDA Forest Service, Pacific Southwest Research Station. "Comprehensive report on sudden oak death." ScienceDaily. www.sciencedaily.com/releases/2010/12/101227143813.htm (accessed April 23, 2014).

Share This



More Earth & Climate News

Wednesday, April 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

California Drought Is Good News for Gold Prospectors

California Drought Is Good News for Gold Prospectors

AFP (Apr. 22, 2014) — For months California has suffered from a historic drought. The lack of water is worrying for farmers and ranchers, but for gold diggers it’s a stroke of good fortune. With water levels low, normally inaccessible areas are exposed. Duration: 01:57 Video provided by AFP
Powered by NewsLook.com
Raw: MN Lakes Still Frozen Before Fishing Opener

Raw: MN Lakes Still Frozen Before Fishing Opener

AP (Apr. 22, 2014) — With only three weeks until Minnesota's fishing opener, many are wondering if the ice will be gone. Some of the Northland lakes are still covered by up to three feet of ice, causing concern that just like last year, the lakes won't be ready. (April 22) Video provided by AP
Powered by NewsLook.com
Scientists Warn Of Likely El Niño Event This Year

Scientists Warn Of Likely El Niño Event This Year

Newsy (Apr. 22, 2014) — With Pacific ocean water already showing signs of warming, the NOAA says there's about a 66 percent chance the event will begin before November. Video provided by Newsy
Powered by NewsLook.com
Is North Korea Planning Nuclear Test #4?

Is North Korea Planning Nuclear Test #4?

Newsy (Apr. 22, 2014) — South Korean officials say North Korea is preparing to conduct another nuclear test, but is Pyongyang just bluffing this time? Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins