Navigation Links
UGA study offers hope for hemlock attack
Date:1/10/2012

Athens, Ga. Thousands of broken trees line the banks of the Chattooga River. The dead gray stabs were once evergreen monsters offering shade to trout and picturesque views to visitors. These Eastern hemlocks are dying rapidly, and University of Georgia researchers are working to save them.

One tiny insect, the hemlock woolly adelgid, is to blame. The Asian insect first appeared in the eastern U.S. in Richmond, Va., in the 1950s. In 2003, it crossed the river from South Carolina and started feeding on Georgia trees.

The tiny pests suck up cells from the tree's needles, which prevent them from transferring water and conducting photosynthesis. The first obvious sign of an infestation is thinning foliage. Needles fall off, and the crown starts thinning. From a distance, trees look gray.

Researchers working to find ways to combat the adelgid have focused on releasing ladybird beetles, which eat adelgids. A new UGA study brings some of the logistical issues to light and offers hope for more successful control in the future. The results were published in the December issue of the Journal of Economic Entomology.

"Because the trees being attacked live mostly in remote forests where insecticide application is impractical, predators may be the best hope for tree survival," said Shimat Joseph, former UGA doctoral student who authored the journal article.

Previous studies have shown widely released predator beetles, Laricobius nigrinus and Sasajiscymnus tsugae, have been successful in controlling hemlock wooly adelgid populations, but they have not survived well through multiple seasons.

"Adelgid populations are not concentrated where we are releasing the predators," Joseph said. "Previous studies assumed populations are evenly distributed, but we are seeing that is not the case."

According to the study, adelgid populations tend to be more abundant in the upper crown, especially early in the infes
'/>"/>

Contact: Kris Braman
kbraman@uga.edu
770-228-7236
University of Georgia
Source:Eurekalert

Page: 1 2

Related biology news :

1. University of Houston wins NASA grant to study Congo River Basin
2. Study reveals enzyme function, could help find muscular dystrophy therapies
3. Study finds age-related effects in MS may be reversible
4. Study finds air pollution linked to diabetes and hypertension in African-American women
5. Scripps Research Scientist wins pair of grants to study critical component of memory
6. Study uncovers a molecular maturation clock that modulates branching architecture in tomato plants
7. Study examines how diving marine mammals manage decompression
8. UMDs START gets $3.6 million to study terrorisms human causes and consequences
9. Human skull study causes evolutionary headache
10. Study reveals turn signals for neuron growth
11. Hellbender salamander study seeks answers for global amphibian decline
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/5/2015)... TRIANGLE PARK, North Carolina , 5. ... sein 35. Jahr als spezialisiertes Logistikunternehmen und ... Position als einzige klinische Logistikfirma (Clinical Logistics ... Die Kernbotschaft der neuen Kampagne lautet ... und Lieferungen. Foto: http://photos.prnewswire.com/prnh/20150205/173753 ...
(Date:2/5/2015)... Jan. 27, 2015   Marvin Test ... deployed, innovative test solutions for military, aerospace, ... of its TS-323 GENASYS Test Platform ... (LMSSC). GENASYS is a high-performance PXI-based system ... applications that require performance functional testing. GENASYS ...
(Date:2/5/2015)...  It is gratifying to see that the Obama ... science as a means to better understand human biology, ... was honored to participate in today,s White House event ... Since the 1980s my teams have been ... sequenced genome of a free living organism, the first ...
Breaking Biology News(10 mins):Marken startet Kampagne mit Patienten im Mittelpunkt 2Marken startet Kampagne mit Patienten im Mittelpunkt 3Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 2Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 3Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 4J. Craig Venter, Ph.D., Co-Founder and CEO, Human Longevity, Inc. (HLI) Participates in White House Precision Medicine Event 2
... a "backup" brain region springs into action to compensate for ... Their finding offers new insight into how the brains of ... recovery of movement. , Jacinta O'Shea and colleagues at the ... 2007 issue of the journal Neuron, published by Cell Press. ...
... the University of Rhode Island have demonstrated a new way ... of protein that acts like a nanosyringe to deliver “tags?or ... of the National Academy of Sciences. , The researchers show ... be injected into the abdomen of a mouse, find its ...
... survey of lizards on islands around the world has ... observed: Animals on islands are much more abundant than ... longstanding observation, the study signals an alarm for island ... climate change may have devastating consequences for lizards and ...
Cached Biology News:How the brain's backup system compensates for stroke 2pHLIP, a novel technology to locate and treat tumors 2Global survey of lizards reveals greater abundance of animals on islands than on mainland ecosystems 2Global survey of lizards reveals greater abundance of animals on islands than on mainland ecosystems 3
(Date:2/27/2015)... FamilyFarms Group is pleased to announce its valued ... received the 2015 Tomorrow’s Top Producer Horizon Award. The ... 35, who has demonstrated excellence in the business of ... Tomorrow's Top Producer Horizon Award. Every year I look ... and learning from their experiences. It is truly humbling ...
(Date:2/27/2015)...  Steep Hill, the industry leader in cannabis testing ... open a full service medical cannabis quality assurance laboratory ... advanced scientific tools and methodology to the state, for ... currently the only laboratory licensed by the New Mexico ... in order to meet the recently adopted regulatory requirements ...
(Date:2/26/2015)... S&P Capital IQ (MHFI) announced today that ... MabVax Therapeutics Holdings Inc . MabVax ... company focused on the development of vaccine and antibody-based ... of cancer. MabVax has discovered a pipeline of human ... generated by patients who have been immunized against targeted ...
(Date:2/26/2015)... VIEW, Calif. , Feb. 26, 2015  23andMe, ... of Kate Black as Privacy Officer and ... federal, and state privacy laws as well as health ... regulatory team, she will be responsible for reviewing, updating ... customers in the U.S. and abroad. She joined the ...
Breaking Biology Technology:Matt Sims Receives the 2015 Tomorrow’s Top Producer Horizon Award 2Steep Hill First to Receive Provisional Approval to Establish Laboratory Services for Cannabis Testing in State of New Mexico 2S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 2S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 3S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 4S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 523andMe Appoints Kate Black as Privacy Officer and Corporate Counsel 2
... UK athletes reach the top of their game when ... high performance sports agency, has reached an agreement to ... developed by Argento Diagnostics to improve training programmes for ... various proteins which reveal details about the condition of ...
... version of the world,s smallest battery its anode ... human hair has been created by a team led ... better study the anode,s characteristics, the tiny rechargeable, lithium-based ... at the Center for Integrated Nanotechnologies (CINT), a Department ...
... Spherix Incorporated (Nasdaq: SPEX ), an ... and atherosclerosis; and providers of technical and regulatory consulting ... announced that its Phase 2 diabetes clinical trial, designed ... reducing HbA1c, found that the minimum dose capable of ...
Cached Biology Technology:Medical science helps UK athletes reach peak performance 2Medical science helps UK athletes reach peak performance 3World's smallest battery created at CINT nanotechnology center 2World's smallest battery created at CINT nanotechnology center 3Spherix Phase 2 Trial with D-tagatose Determines Minimum Dose for HbA1c and Triglycerides 2Spherix Phase 2 Trial with D-tagatose Determines Minimum Dose for HbA1c and Triglycerides 3Spherix Phase 2 Trial with D-tagatose Determines Minimum Dose for HbA1c and Triglycerides 4
... M-840 HEXALIGHT robot is based on PI's ... over more than a decade. PI Hexapods ... mirror and antenna adjustments over wide ranges ... six degrees of freedom with 3 m ...
... DNA sequencing is the experimental process of ... region. The automated DNA Sequencing is based ... DNA polymerase, which allows cycle sequencing reactions. ... detected in a capillary instrument controlled by ...
...
High-throughput DNA sequencing of any library. Just give us your transformation mixture, and we'll do the rest. ABI 3730xl's yield the longest read lengths available. LIMS tracking utilizing Geospiza...
Biology Products: