The Latest Biology News And Medical NewsBiology News 2Health News 2Biology News 3Health News 3
HOME >> BIOLOGY >> NEWS
US trees affected by growing number of health concerns

St. Paul, Minn. (November 30, 2004) - A number of emerging forest health issues are affecting the overall vitality of North American forests, say plant pathologists with The American Phytopathological Society (APS).

At a recent APS Northeastern Division meeting, plant pathologists highlighted several types of diseases that are of growing concern, including:

BUTTERNUT CANKER

First reported in Wisconsin in 1967, butternut canker is a fast moving, virulent disease that is killing butternut trees at a rapid rate throughout their range in North America. Butternut canker is caused by a fungus that infects the trees through wounds or natural openings in the bark. Infections kill the inner bark and create dark-colored, elongate cankers (dead patches) on woody tissues of exposed roots, stems, and branches. Infected trees are eventually killed due to multiple cankering that girdles the tree. In 2004, a survey of 1,384 permanently marked butternut trees in Vermont found that about 82 percent were diseased and that 41 percent had been killed. This level of mortality is about a 30 percent increase since the initial survey was completed in 1996. Forest pathologists at the University of Vermont have found that insects are involved in the dissemination of spores of the fungus. They are also using a Geographic Information System (GIS) to investigate geospatial patterns of disease development and tree mortality on the landscape.

SUDDEN OAK DEATH AND RELATED DISEASES

Since it was discovered in 1995, Sudden Oak Death (SOD) has killed tens of thousands of oaks in forests of California and Oregon. The fungus-like organism that causes SOD, Phytophthora ramorum, appears to be an exotic species that is not native to North America. The pathogen infects a large number of plant species, but mortality in forests is primarily restricted to oaks and tanoaks. While many of the non-oak plants do not die as a result of their expos
'"/>

Contact: Amy Steigman
asteigman@scisoc.org
651-994-3802
American Phytopathological Society
30-Nov-2004


Page: 1 2

Related biology news :

1. Plastic that grows on trees
2. Human ancestors learned to walk upright in the trees, say experts
3. Lessons from the orangutans: Upright walking may have begun in the trees
4. Seeing the trees for the forest: WHRC scientists creating national biomass and carbon dataset
5. Mystery of fossilized trees is solved
6. How trees manage water in arid environments
7. Squirrels winning at outwitting trees survival strategy
8. Software, evolution and micro-inversions -- improving the building of phylogenetic trees
9. Frankincense trees overexploited for Christmas scent
10. A chilling solution: Measuring below-ground carbon without destroying trees
11. Mode of seed dispersal greatly shapes placement of rainforest trees

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: trees affected growing number health concerns

(Date:11/23/2009)..., A bit of imagination on the part of a measuring... to add data from areas where the instrument is un...vely. In order to infer missing data in an astrono... physicists at the Max Planck Institute for Astrop...ion called information field theory. The scientist...
(Date:11/22/2009)...tobacco smoke and during childhood to lead face a ...arch done at Cincinnati Children,s Hospital Medica...rcent of ADHD cases in children between the ages o... these environmental exposures. This could transla...ead exposure each have their own important adverse...
(Date:11/22/2009)...terfly,s proboscis looks like a straw -- long, sle...ke a paper towel, according to Konstantin Kornev o...s of this piece of insect anatomy to make small pr... Kornev will present his work next week at the 62...,s (APS) Division of Fluid Dynamics will take plac...
Breaking Biology News(10 mins):Visual assistance for cosmic blind spots 2Visual assistance for cosmic blind spots 3Visual assistance for cosmic blind spots 4Exposure to lead, tobacco smoke raises risk of ADHD 2Epeius Biotechnologies Rexin G Receives FDA Fast Track Designation for the Treatment of Pancreatic Cancer 49164 1Epeius Biotechnologies Rexin G Receives FDA Fast Track Designation for the Treatment of Pancreatic Cancer 49164 2Epeius Biotechnologies Rexin G Receives FDA Fast Track Designation for the Treatment of Pancreatic Cancer 49164 3Scots Men Get the Issue of Moobs Off Their Chests in Time for Summer Male Surgery in Scotland Sees 80 Per Cent Growth 49161 1Scots Men Get the Issue of Moobs Off Their Chests in Time for Summer Male Surgery in Scotland Sees 80 Per Cent Growth 49161 2Scots Men Get the Issue of Moobs Off Their Chests in Time for Summer Male Surgery in Scotland Sees 80 Per Cent Growth 49161 3PAREXEL International to Present at the Wachovia Equity Conference 12667 1PAREXEL International to Present at the Wachovia Equity Conference 12667 2
(Date:11/20/2009)... , , , , , , , ... AUDIO: , A team of scientists from Washi...rizona, Cold Spring Harbor Laboratory and Iowa Sta...orn. The... , , Click here for mo... , , , , , , , ...
(Date:11/20/2009)...TTLE, Nov. 20 Dendreon C...he U.S. Food and Drug Administration (FDA) provide...ed Biologics License Application (BLA) for PROVENG...e FDA has assigned a Prescription Drug User Fee Ac...ll respond to Dendreon,s amended BLA. Dendreon is...
(Date:11/20/2009)...SEATTLE, Nov. 20 Cell Th...unced today that the Ninth Circuit Court of Appeal...hat CTI should be allowed to pursue all of its cla...to the District Court for trial. CTI filed a comp...arty reimbursement consultant for CTI,s product TR...
(Date:11/19/2009)... would like to be able to charge their cell phones...o often. A recent discovery made by UC San Diego e...capacitors that could do just this. , In recent... Prabhakar Bandaru, a professor in the UCSD Depart...g with graduate student Mark Hoefer, have found th...
Breaking Biology Technology:Amaizing: Corn genome decoded 2Amaizing: Corn genome decoded 3Amaizing: Corn genome decoded 4Dendreon Receives FDA Acknowledgement of Complete Response 2Dendreon Receives FDA Acknowledgement of Complete Response 3Cell Therapeutics Wins Federal Appeal to Pursue $22.8 Million Claim Against The Lash Group 2Nanotube defects equal better energy and storage systems 2
Other News:
...Box jellyfish are much more active swimmers than o...imming, are able to perform rapid 180 degree turns...do they manage to manoeuvre the obstacle course th...impressive 24 eyes one would think they would be w...
...Birmingham, AL -- Researchers have identified the ...r injury after trauma and hemorrhage. The related ...30-dependent protein kinase A pathway is critical ...iver injury after trauma-hemorrhage, appears in th...
...Chemists from the National Institute of Standards ... have proposed an elegantly simple technique for c...is. The prototype sample preparation method, detai...iolet light and titanium dioxide and could be idea...
...Leading figures in the global fight against lung c...nd this week to discuss the latest tools for preve...more than 1.3 million people each year.... At a pr...at the Geneva Palexpo, reporters will have the cha...
The eyes have it! How box jellyfish avoid banging into things 2Estrogen protects liver after traumatic injury 2Titanium dioxide -- It slices, it dices ... 2Preventing and treating lung cancer -- ESMO explores collaboration to fight cancer on all fronts 2
...ing evidence clearly documents that air pollution ...t system and cross the Pacific Ocean to the West C...hough such events happen infrequently, when large ...effects on air quality this side of the Pacific ca...
..., WA In June 2003, the Pew Oceans Commission rele...ldlife and collapse of ocean ecosystems." It calls...ies to restore ocean wildlife, protect ocean ecosy...ocial benefits the oceans provide in essence, a '...
... - Although the Human Genome Project made a remark...edical research, it was merely the preamble to pro.........."If we really want to understand what genes...- the effector molecules of the cell," says Omenn,...
...w decades, it's likely that scientists will look b...rd it as a fundamental stage in understanding the ...limate. In fact, it was in this time period, they ...limatologically significant as greenhouse gases......
Dirty air from Asia can push U.S. air pollution to unhealthy levels 2Dirty air from Asia can push U.S. air pollution to unhealthy levels 3U.S. commission makes dramatic recommendations for ocean health 2HUPO scientists tackle human blood plasma proteome 2HUPO scientists tackle human blood plasma proteome 3Symposium examines the growing influence of aerosols on climate 2