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:11/6/2014)... an asset for a predator. Except when that predator runs ... beetle, relative to its size, is the fastest creature on ... lengths per second (at about five miles per hour). The ... the sprinting gold from the tiger beetle, a person would ... tiger beetle has a problem. At peak speeds, everything becomes ...
(Date:11/5/2014)... the UTSA College of Sciences, is one of ... a two-year $300,00 National Science Foundation (NSF) Early ... supports President Obama,s BRAIN Initiative, a federal effort ... will demystify complex brain processes. , According ... into the interactions of multiple components, each working ...
(Date:11/5/2014)... show great diversity in their ability to identify scents ... differ in their perceptual evaluation of odors, with women ... , Sex differences in olfactory detection may play ... connected to one,s perception of smell, which is naturally ... superiority has been suggested to be cognitive or emotional, ...
Breaking Biology News(10 mins):The tiger beetle: Too fast to see 2UTSA biology professor awarded $300,000 NSF grant for brain research 2UTSA biology professor awarded $300,000 NSF grant for brain research 3The female nose always knows: Do women have more olfactory neurons? 2
(Date:11/26/2014)... Baltimore, MD (PRWEB) November 26, 2014 ... invite the Baltimore and Washington D.C. science community ... research. , The event, sponsored by the Protein Society, ... in UMBC’s University Center, Room 312. Through discussion, ... functional and structural importance of proteins, their role in ...
(Date:11/26/2014)... PMG Research, Inc. announced today the formation ... of sites that provide clinical research services to pharmaceutical companies ... through its partnerships with large physician practices and integrated health ... in the Southeastern United States and spans over 60 physician ... will be held by: Dr. Robert Holmes, MD, of ...
(Date:11/26/2014)... Charlotte, NC (PRWEB) November 25, 2014 ... High Intensity Focused Ultrasound (HIFU) devices, recently participated ... “ Small Renal Mass 360° .” Key opinion ... and therapeutic advances related to small renal masses ... learn about different ablative technologies in hands-on labs. ...
(Date:11/26/2014)... November 25, 2014 Continuing its award-winning ... earned three prestigious MarCom Awards for outstanding creative achievement ... a Platinum MarCom Award, the organization’s top honor, in ... St. Louis held in April of this year. The ... 14,000 attendees. Additionally, Nerium was awarded a Gold MarCom ...
Breaking Biology Technology:PMG Research Names Medical Advisory Board 2PMG Research Names Medical Advisory Board 3SonaCare Medical Supports American Urology Association’s Small Renal Mass 360° Summit 2SonaCare Medical Supports American Urology Association’s Small Renal Mass 360° Summit 3Nerium International™ Wins One Platinum, Two Gold MarCom Awards 2
Cached News: