Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Special edition journal provides new perspectives and guidance for managing white pine blister rust

01.09.2010
"My job was to locate the previously marked study trees. . .and record data on the activity of treated blister rust cankers," wrote Charles "Terry " Shaw. "The work took [me] in rickety four-wheel drive vehicles to remote locations scattered across the white pine forests of northern Idaho." Shaw, now editor of a recently published special issue of Forest Pathology, described how 44 years ago, he and other young forestry students collected data about a destructive forest disease for senior scientists.

Today, Shaw and his colleague, Dr. Brian Geils of the Rocky Mountain Research Station are now the senior scientists. Together, they have compiled a collection of 12 journal article on the biology and management of Cronartium ribicola, an introduced invasive pathogen that causes white pine blister rust, a seriously damaging disease of North American white pines.

The August 2010 journal issue provides a synthesis of knowledge on C. ribicola, identifies policy and management actions to mitigate disease impacts, and reviews future issues facing white pine management such as climate change and new pathogen introductions. Through this comprehensive and scholarly review of the literature, Shaw, Geils, and thirty-three contributing authors provide a scientific basis for protecting and sustaining white pine ecosystems.

"The rust pathogen has a very complicated life cycle," explains Shaw, "with five different spore stages alternating between two different hosts." The disease produces stem cankers that can eventually girdle and kill susceptible host pines; spores that can only infect Ribes (currants and gooseberries) are produced on infected trees. The fungus intensifies on Ribes leaves and may cause early defoliation; but more importantly wind-born spores spread the rust back to nearby white pines. Until the 1960s, managers exploited this requirement in the rust's life cycle to control the disease by poisoning or grubbing out Ribes bushes from farms and forests. Although Ribes eradication reduced losses in some stands and provided needed employment during the Depression, the practice was unreliable, expensive, and could be environmentally damaging. Continued research discussed in the special issue has led to silvicultural and genetic practices that are used today and could be adapted for managing future populations of white pines for their economic and ecological values.

The western white pine is an evergreen tree capable of rapid growth to great size with desirable wood properties. This pine and the similar sugar pine were once important timber trees, but logging, other disturbances, and loss of regeneration led to a marked decline in supply.

The release of the publication compiled by Shaw and Geils coincides with the centennial of the introduction of the pathogen to Western North America as well as the Great Fire of 1910, often called the largest fire in American history. This fire burned over 3 million forest acres in northern Idaho and western Montana and killed 86 people. The area it burned was about the size of the state of Connecticut and the forests were said to be so dense that a person had to cut a way through. Also consumed in this fire were acres and acres of western white pine. After the destruction, the white pine readily regenerated, along with the Ribes which set up a perfect condition for the newly introduced Cronartium ribicola to kill millions of young pines.

In higher elevations of the mountainous West where white bark pine grows, white pine blister rust and bark beetles have so devastated some populations that the Department of the Interior is now reviewing a petition to list the species as threatened or endangered. This special issue of Forest Pathology contains considerable scientific information that may be of significant value as the agency evaluates the status of this tree species.

Shaw, Geils and their colleagues hope this edition of Forest Pathology (volume 40, issue 3-4, 145-418, August 2010) will inform and increase discussion and solutions to managing and eventually controlling the spread of this disease on white pines.

To read the abstract and order a copy of the journal please visit http://onlinelibrary.wiley.com/doi/10.1111/efp.2010.40.issue-3-4/issuetoc.

Sherri Richardson Dodge | EurekAlert!
Further information:
http://www.fs.fed.us

More articles from Agricultural and Forestry Science:

nachricht New 3-D model predicts best planting practices for farmers
26.06.2017 | Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign

nachricht Fighting a destructive crop disease with mathematics
21.06.2017 | University of Cambridge

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: 3-D scanning with water

3-D shape acquisition using water displacement as the shape sensor for the reconstruction of complex objects

A global team of computer scientists and engineers have developed an innovative technique that more completely reconstructs challenging 3D objects. An ancient...

Im Focus: Manipulating Electron Spins Without Loss of Information

Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...

Im Focus: The proton precisely weighted

What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.

To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...

Im Focus: On the way to a biological alternative

A bacterial enzyme enables reactions that open up alternatives to key industrial chemical processes

The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....

Im Focus: The 1 trillion tonne iceberg

Larsen C Ice Shelf rift finally breaks through

A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Closing the Sustainability Circle: Protection of Food with Biobased Materials

21.07.2017 | Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

The technology with a feel for feelings

12.07.2017 | Event News

 
Latest News

Ultrathin device harvests electricity from human motion

24.07.2017 | Power and Electrical Engineering

Scientists announce the quest for high-index materials

24.07.2017 | Materials Sciences

ADIR Project: Lasers Recover Valuable Materials

24.07.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>