Free Newsletters - Space - Defense - Environment - Energy - Solar - Nuclear
..
. Earth Science News .




WOOD PILE
Tiny wasp takes on invasive pest killing U.S., Canadian ash trees
by Staff Writers
Annapolis, Md. (UPI) Jun 5, 2013


disclaimer: image is for illustration purposes only

U.S. entomologists say a tiny Chinese wasp is proving an effective biological weapon against an invasive insect pest decimating ash trees in North America.

The emerald ash borer has killed tens of millions of ash trees throughout the eastern United States since it was first detected in 2002 in Michigan and Canada, they said, and has the potential to kill an estimated 7 billion ash trees in urban and rural forests.

Shortly after its discovery research began on its natural enemies in its native China, focusing on three parasitoid wasp species.

Writing in the Journal of Economic Entomology, the researchers said since 2007, when federal and state regulatory agencies approved the release of the wasps in more than a dozen states, the populations of these parasitoid wasps have been increasing and expanding in Michigan, suggesting they will likely play a critical role in suppressing the emerald ash borer in that state.

The tiny wasps, which do not sting humans, lay eggs into or on the borer larvae, killing them in a classic example of a biological control program, the researchers said.

.


Related Links
Forestry News - Global and Local News, Science and Application






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





WOOD PILE
Human activity echoes through Brazilian rainforest
Washington DC (SPX) Jun 05, 2013
The disappearance of large, fruit-eating birds from tropical forests in Brazil has caused the region's forest palms to produce smaller, less successful seeds over the past century, researchers say. The findings provide evidence that human activity can trigger fast-paced evolutionary changes in natural populations. Mauro Galetti from the Universidade Estadual Paulista in Sao Paulo, Brazil, ... read more


WOOD PILE
Sandbags and raw nerves as flood peak hits Germany

More radioactive leaks reported at Fukushima plant

Japan disaster cash spent on counting turtles: report

Agreement over Statue of Liberty security screening

WOOD PILE
To improve today's concrete, do as the Romans did

Magnetic monopoles erase data

Mind-controlled games on show at Asia's biggest IT fair

Atom by atom, bond by bond, a chemical reaction caught in the act

WOOD PILE
Egypt warns 'all options open' on Ethiopia dam

Surge of jellyfish hitting coastlines around Mediterranean Sea

Scientists tell Australia to save Great Barrier Reef

Australian lake untouched by climate change

WOOD PILE
Researchers document acceleration of ocean denitrification during deglaciation

New map reveals secrets of Antarctica below the ice

Arctic current flowed under deep freeze of last ice age

Russian scientists make rare find of 'blood' in mammoth

WOOD PILE
Climate and land use: Europe's floods raise questions

China opens EU wine probe as trade dispute spreads

Stopping the worm from turning

Great Wall of trouble for Chinese farmer

WOOD PILE
Europe floods force tens of thousands from their homes

Medieval writings link volcanic eruptions, cold weather

Tropical Storm Andrea forms, likely to be hurricane: NHC

Merkel praises solidarity in fight against floods

WOOD PILE
Now is the time to invest in Africa: Japan's Abe

Japan, eyeing China, pledges $14 bn aid to Africa

Climate change drowning the 'Venice of Africa'

Outside View: Somalia's Jubaland

WOOD PILE
Turning point for early human diets occurred 3.5 million years ago

A grassy trend in human ancestors' diets

Tourism imperils way of life for Thai sea gypsies

Scientists say fossil from China is oldest primate skeleton yet found




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement