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 Cossι

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 Cossι, 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 Cossι'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 March 6, 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 March 6, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Friday, March 6, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Giant Panda Goes Walkabout in Southwest China

Giant Panda Goes Walkabout in Southwest China

AFP (Mar. 6, 2015) — A giant panda goes walkabout alone at night in southwest China. Duration: 00:37 Video provided by AFP
Powered by NewsLook.com
Nesting Bald Eagle Covered in Snow Up to Its Neck

Nesting Bald Eagle Covered in Snow Up to Its Neck

Buzz60 (Mar. 6, 2015) — The Pennsylvania State Game Commission captured amazing shots of a nesting bald eagle who stayed on its nest during a snowstorm, even when the snow piled all the way up to its neck. Jen Markham (@jenmarkham) has the story. Video provided by Buzz60
Powered by NewsLook.com
'Extinct' Bird Isn't Extinct At All, Scientists Find

'Extinct' Bird Isn't Extinct At All, Scientists Find

Buzz60 (Mar. 6, 2015) — Scientists rediscover a bird thought to be extinct, so we may be able to cross it off the "Gone For Good" list. Sean Dowling (@seandowlingtv) has more details. Video provided by Buzz60
Powered by NewsLook.com
Lack of Snow Pushes Alaska Sled Dog Race North

Lack of Snow Pushes Alaska Sled Dog Race North

AP (Mar. 6, 2015) — A shortage of snow has forced Alaska&apos;s Iditarod Trail Sled Dog Race to move 300 miles north to Fairbanks. The ceremonial start through downtown Anchorage will take place this weekend, using snow stockpiled earlier this winter. (March 6) Video provided by AP
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