Subscribe to our free daily newsletters
. Earth Science News .




Subscribe to our free daily newsletters



WOOD PILE
Parasitic wasps to be released to hunt invading ash borers
by Brooks Hays
Newark, Del. (UPI) May 25, 2016


disclaimer: image is for illustration purposes only

A unique host-specific parasitic wasp -- known only by its scientific name, Spathius galinae -- has been approved for release to battle the invasive emerald ash borer beetle, which has devastated ash tree populations throughout the United States.

The approval came in part thanks to the work of a team of researchers at the University of Delaware, who published a new paper on the wasp this month in the journal Biological Control.

The new research details the impressive hunting techniques of the tiny parasitic wasp.

Finding emerald ash borers isn't easy. As their name says, they bore inside trees. The tiny wasps first locate infested trees by smell, as trees invaded by ash borers give off a unique scent. Next, the wasps walk along the tree trunk until sensors in their legs locate the vibrations of feeding larvae.

The wasps drill through the bark with their ovipositor and lay eggs atop the larvae. The wasp larvae feed on the beetle larvae after they hatch.

Researchers at Delaware conducted a number of experiments involving the wasps in order to determine the ideal temperature for rearing and measure its potential effects on other native insects.

Their tests proved the wasp is highly host-specific and only affected one out of 14 non-target beetles, the gold spotted oak borer -- itself an oak-infesting invader in California.

"Because we have done all these studies, we have developed an effective rearing program and USDA APHIS approved it for release in the United States as of May 2015," researcher Jian Duan, a professor of entomology at Delaware, said in a news release.

"The parasitoid colony has been transferred to USDA-APHIS lab in Brighton, Michigan, where APHIS has a mass rearing facility for all emerald ash borer parasitoids including this one," Duan added. "The plan is, they're going to produce tens of thousands of these parasitoids and send them to northeastern states to release."


Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only

.


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

Previous Report
WOOD PILE
Poland starts logging primeval forest despite activist pleas
Warsaw (AFP) May 24, 2016
Poland on Tuesday began logging in the ancient Bialowieza forest, which includes some of Europe's last primeval woodland, despite fierce protests from environmental groups battling to save the World Heritage site. "The operation began today," national forest director Konrad Tomaszewski said of the plan to harvest wood from non-protected areas of one of the last vestiges of the immense forest ... read more


WOOD PILE
MH370 kin 'gravely concerned' at impending end of search

12 dead in Myanmar jade mine landslide, many feared missing

Orbita, a ghost of Chernobyl in the heart of Ukraine

In first, Russia, China emergency medical teams get global certificate

WOOD PILE
How the giant magnetoelectric effect occurs in bismuth ferrite

Rice de-icer gains anti-icing properties

Combining nanotextures with Leidenfrost effect for water repellency

Dynamic dazzle distorts speed

WOOD PILE
In changing oceans, cephalopods are booming

Squids on the rise as oceans change

South Africa detains 3 Chinese fishing vessels, 100 crew

New model could predict sudden shifts in river deltas

WOOD PILE
A history of snowfall on Greenland, hidden in ancient leaf waxes

Evidence of repeated rapid retreat of the East Antarctic ice sheet

Will more snow over Antarctica offset rising seas

Increased vegetation in the Arctic region may counteract global warming

WOOD PILE
New confidence in China wine market at Hong Kong's Vinexpo

Bayer targets GM giant Monsanto in biggest German takeover bid

Cambodia's royal oxen predict 'bountiful' harvest despite severe drought

A peachy defense system for seeds

WOOD PILE
Villages in ashes after deadly Indonesia volcano eruption

Flood-hit Sri Lankans face uncertain future

Sri Lanka rain death toll hits 101 as waters recede

Villages in ashes after deadly Indonesia volcano eruption

WOOD PILE
DR Congo denies getting pistols from North Korea

Senegal's child beggars show limits of 'apptivism'

S.Africa may re-consider regulated rhino horn trade in future

Climate-exodus expected in the Middle East and North Africa

WOOD PILE
Global data shows inverse relationship, shift in human use of fire

Did human-like intelligence evolve to care for helpless babies

Ancient Chinese pottery reveals 5,000-yr-old beer brew

Great apes communicate cooperatively, like humans




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






The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news 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. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. 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