Featured Research

from universities, journals, and other organizations

Synthetic Pheromone Helps Scientists Sniff Out Biocontrol Bug's Whereabouts

Date:
April 26, 2005
Source:
USDA/Agricultural Research Service
Summary:
Monitoring Chinese leafbeetle attacks on saltcedar trees could become easier now that Agricultural Research Service (ARS) scientists have synthesized the beneficial insect's chemical sex attractant, or pheromone.

In the search for the perfect attactrant for the biocontrol beetle Diorhabda elongata, scientists used a technique called "electroantennographic detection." To find out which scent attracts the beetle the most, they hooked up an electrode to a beetle antenna on a severed beetle head and measured electrical stimulation triggered in the antenna by the various scents collected from other D. elongata beetles.
Credit: Photo by Allard Cossé

Monitoring Chinese leafbeetle attacks on saltcedar trees could become easier now that Agricultural Research Service (ARS) scientists have synthesized the beneficial insect's chemical sex attractant, or pheromone.

Related Articles


Saltcedar, the beetle's favorite food, is an invasive species from Eurasia that is established in more than 20 U.S. states, causing about $100 million annually in damages. The beetle, a natural enemy from China, has been cleared for release in several western states to biologically control the invasive tree. Current methods include herbicide spraying, burning and bulldozing, but none are considered long-term solutions to the problem, according to Robert Bartelt and Allard Cossé, entomologists with ARS' National Center for Agricultural Utilization Research at Peoria, Ill.

They synthesized the beetle's pheromone so that biological control practitioners, landowners, wildlife biologists and others could more easily determine how far the insects have moved from release sites, how quickly, and in what directions. Currently, beetle monitoring requires a sharp eye, dexterity with a sweep net, and a keen sense of direction while trekking through 12-foot-high thickets of saltcedar, notes Bartelt, at the ARS center's Crop Bioprotection Research Unit.

In studies there, the scientists and group colleague Richard Petroski synthesized the beetle's pheromone using affordable, off-the-shelf chemicals. Field tests in 2004 at a Lovelock, Nev., site showed the synthetic pheromone is attractive to both male and female beetles. In addition, 2004 field tests showed that odors from saltcedar foliage were very attractive to the beetles as well. Field tests in 2005 are planned to evaluate whether the pheromone and saltcedar odors work better when combined than when either is used alone.

Bartelt and Cossé's research is part of an ARS-led effort called the "Saltcedar Biological Control Consortium."


Story Source:

The above story is based on materials provided by USDA/Agricultural Research Service. Note: Materials may be edited for content and length.


Cite This Page:

USDA/Agricultural Research Service. "Synthetic Pheromone Helps Scientists Sniff Out Biocontrol Bug's Whereabouts." ScienceDaily. ScienceDaily, 26 April 2005. <www.sciencedaily.com/releases/2005/04/050421234029.htm>.
USDA/Agricultural Research Service. (2005, April 26). Synthetic Pheromone Helps Scientists Sniff Out Biocontrol Bug's Whereabouts. ScienceDaily. Retrieved January 29, 2015 from www.sciencedaily.com/releases/2005/04/050421234029.htm
USDA/Agricultural Research Service. "Synthetic Pheromone Helps Scientists Sniff Out Biocontrol Bug's Whereabouts." ScienceDaily. www.sciencedaily.com/releases/2005/04/050421234029.htm (accessed January 29, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Thursday, January 29, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Brawling Pandas Are Violently Adorable

Brawling Pandas Are Violently Adorable

Buzz60 (Jan. 29, 2015) — Video of pandas play fighting at the Chengdu Research Base in China will make your day. Mara Montalbano (@maramontalbano) shows us. Video provided by Buzz60
Powered by NewsLook.com
Why Researchers Say We Should Cut Back On Biofuels

Why Researchers Say We Should Cut Back On Biofuels

Newsy (Jan. 29, 2015) — Biofuels aren&apos;t the best alternative to fossil fuels, according to a new report. In fact, they&apos;re quite a bad one. Video provided by Newsy
Powered by NewsLook.com
3-D Printed Wheelchair Helps Two-Legged Dog Learn to Run

3-D Printed Wheelchair Helps Two-Legged Dog Learn to Run

Buzz60 (Jan. 29, 2015) — 3-D printing helps another two-legged dog run around with his four-legged friends. Jen Markham (@jenmarkham) has the adorable video. Video provided by Buzz60
Powered by NewsLook.com
Dogs Bring on So Many Different Emotions in Their Human Best Friends

Dogs Bring on So Many Different Emotions in Their Human Best Friends

RightThisMinute (Jan. 28, 2015) — From new-puppy happy tears to helpful-grocery-carrying-dog laughter, our four-legged best friends can make us feel the entire spectrum of emotions. Video provided by RightThisMinute
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins