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 Researchers discover a new link to fight billion-dollar threat to soybean production
14.02.2017 | University of Missouri-Columbia

nachricht Important to maintain a diversity of habitats in the sea
14.02.2017 | University of Gothenburg

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: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Biocompatible 3-D tracking system has potential to improve robot-assisted surgery

17.02.2017 | Medical Engineering

Real-time MRI analysis powered by supercomputers

17.02.2017 | Medical Engineering

Antibiotic effective against drug-resistant bacteria in pediatric skin infections

17.02.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>