Featured Research

from universities, journals, and other organizations

Virulent Hessian Flies Renew Attack On U.S. Wheat

Date:
January 28, 2007
Source:
USDA/Agricultural Research Service
Summary:
Last year, the West Lafayette, Ind., area saw its first Hessian fly (Mayetiola destructor) infestation in more than a decade. Over the last two years, the flies have also shown up in Missouri for the first time ever, signaling a westward expansion of the world's most destructive wheat pest.

After a 45-year hiatus, the Hessian fly is re-emerging as a threat to U.S. wheat.
Credit: Photo by Scott Bauer

Last year, the West Lafayette, Ind., area saw its first Hessian fly (Mayetiola destructor) infestation in more than a decade. Over the last two years, the flies have also shown up in Missouri for the first time ever, signaling a westward expansion of the world's most destructive wheat pest.

Related Articles


Having mostly lurked outside of wheat fields for the past 45 years, the flies have recently undergone genetic changes that enable them to make major inroads into wheat fields once again.

It so happens that both the Agricultural Research Service's (ARS) Crop Production and Pest Control Research Unit and Purdue University—part of a research team that pioneered control of the Hessian fly—are located in West Lafayette.

With this team's continuous help in breeding and updating genetic resistance to the fly, wheat has been winning the battle against the pest since 1955, by which time the first three Hessian fly-resistant wheat genes had been bred into wheat varieties.

But by 2000, the flies had overcome four of the latest primary wheat resistance genes that had protected wheat successfully since 1986. This is the fly's latest success in a 10,000-year-old, gene-for-gene battle with wheat. ARS molecular biologist Christie Williams and colleagues at West Lafayette discovered and mapped the newest wheat genes, H31 and H32.

Aided by the latest genetic tools, the West Lafayette scientists are hunting for fly genes as well. They now have enough gene markers to cover the entire Hessian fly genome. With these, they have begun a search for all of the fly genes that overcome resistance genes in wheat.

ARS entomologist Brandon J. Schemerhorn is sampling Hessian flies across the United States to determine their genetic variability. The greater the variability, the more resistance genes will need to be bred into wheat varieties to counter the fly's genes.

ARS is the U.S. Department of Agriculture's chief scientific research agency.


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. "Virulent Hessian Flies Renew Attack On U.S. Wheat." ScienceDaily. ScienceDaily, 28 January 2007. <www.sciencedaily.com/releases/2007/01/070125113924.htm>.
USDA/Agricultural Research Service. (2007, January 28). Virulent Hessian Flies Renew Attack On U.S. Wheat. ScienceDaily. Retrieved November 27, 2014 from www.sciencedaily.com/releases/2007/01/070125113924.htm
USDA/Agricultural Research Service. "Virulent Hessian Flies Renew Attack On U.S. Wheat." ScienceDaily. www.sciencedaily.com/releases/2007/01/070125113924.htm (accessed November 27, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Thursday, November 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Classic Hollywood Memorabilia Goes Under the Hammer

Classic Hollywood Memorabilia Goes Under the Hammer

Reuters - Entertainment Video Online (Nov. 26, 2014) The iconic piano from "Casablanca" and the Cowardly Lion suit from "The Wizard of Oz" fetch millions at auction. Sara Hemrajani reports. Video provided by Reuters
Powered by NewsLook.com
Pet Dogs to Be Used in Anti-Ageing Trial

Pet Dogs to Be Used in Anti-Ageing Trial

Reuters - Innovations Video Online (Nov. 26, 2014) Researchers in the United States are preparing to discover whether a drug commonly used in human organ transplants can extend the lifespan and health quality of pet dogs. Video provided by Reuters
Powered by NewsLook.com
From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

Newsy (Nov. 25, 2014) The US FDA is announcing new calorie rules on Tuesday that will require everywhere from theaters to vending machines to include calorie counts. Video provided by Newsy
Powered by NewsLook.com
Feast Your Eyes: Lamb Chop Sent Into Space from UK

Feast Your Eyes: Lamb Chop Sent Into Space from UK

Reuters - Light News Video Online (Nov. 25, 2014) Take a stab at this -- stunt video shows a lamb chop's journey from an east London restaurant over 30 kilometers into space. Rough Cut (no reporter narration). Video provided by Reuters
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