Featured Research

from universities, journals, and other organizations

Golf course weeds are developing resistance to the herbicide glyphosate

Date:
January 31, 2012
Source:
Allen Press Publishing Services
Summary:
If your golf game isn’t up to par, you may be able to blame it on those tufts of weeds on the course. Annual bluegrass is a problematic winter weed on many U.S. golf courses. After years of management with the herbicide glyphosate, resistant biotypes of this weed have developed, which will make keeping a clean fairway more challenging.

If your golf game isn't up to par, you may be able to blame it on those tufts of weeds on the course. Annual bluegrass is a problematic winter weed on many U.S. golf courses. After years of management with the herbicide glyphosate, resistant biotypes of this weed have developed, which will make keeping a clean fairway more challenging.

Related Articles


A report in the current issue of the journal Weed Science focuses on a biotype of bluegrass found at the Humboldt Country Club in Humboldt, Tennessee. This course had been treated with glyphosate once each winter for nearly 20 years to kill bluegrass weeds while the course's bermudagrass turf was dormant.

Turfgrass managers have selected glyphosate as an economic and effective choice for weed management. Other herbicides have not been used as often for weed control, and so many grasses are repeatedly treated with glyphosate. As a result, these weeds have become resistant to this herbicide.

Researchers collected samples of glyphosate-resistant bluegrass from the Tennessee golf course. They then tested this grass and samples known to still be susceptible to the herbicide. In laboratory experiments, the susceptible samples showed a higher chemical concentration than did the resistant species.

In the greenhouse, the samples were treated with six different concentrations of glyphosate. While the susceptible sample was 95 percent controlled at half the concentration that had been used on the golf course, the resistant sample was only 76 percent controlled at the highest concentration tested -- eight times more than that used on the golf course.

Bluegrass is a self-pollinating species. Therefore, pollen dispersal or seed movement that would spread the resistant traits developed in this biotype is unlikely. But strategies for alternative weed control are needed to prevent new resistant biotypes from developing.


Story Source:

The above story is based on materials provided by Allen Press Publishing Services. Note: Materials may be edited for content and length.


Journal Reference:

  1. James T. Brosnan, Gregory K. Breeden, Thomas C. Mueller. A Glyphosate-Resistant Biotype of Annual Bluegrass in Tennessee. Weed Science, 2012; 60 (1): 97 DOI: 10.1614/WS-D-11-00139.1

Cite This Page:

Allen Press Publishing Services. "Golf course weeds are developing resistance to the herbicide glyphosate." ScienceDaily. ScienceDaily, 31 January 2012. <www.sciencedaily.com/releases/2012/01/120131150036.htm>.
Allen Press Publishing Services. (2012, January 31). Golf course weeds are developing resistance to the herbicide glyphosate. ScienceDaily. Retrieved December 18, 2014 from www.sciencedaily.com/releases/2012/01/120131150036.htm
Allen Press Publishing Services. "Golf course weeds are developing resistance to the herbicide glyphosate." ScienceDaily. www.sciencedaily.com/releases/2012/01/120131150036.htm (accessed December 18, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Thursday, December 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

When You Lose Weight, This Is Where The Fat Goes

When You Lose Weight, This Is Where The Fat Goes

Newsy (Dec. 17, 2014) Can fat disappear into thin air? New research finds that during weight loss, over 80 percent of a person's fat molecules escape through the lungs. Video provided by Newsy
Powered by NewsLook.com
The Hottest Food Trends for 2015

The Hottest Food Trends for 2015

Buzz60 (Dec. 17, 2014) Urbanspoon predicts whicg food trends will dominate the culinary scene in 2015. Mara Montalbano (@maramontalbano) has the story. Video provided by Buzz60
Powered by NewsLook.com
Rover Finds More Clues About Possible Life On Mars

Rover Finds More Clues About Possible Life On Mars

Newsy (Dec. 17, 2014) NASA's Curiosity rover detected methane on Mars and organic compounds on the surface, but it doesn't quite prove there was life ... yet. Video provided by Newsy
Powered by NewsLook.com
Ivory Trade Boom Swamps Law Efforts

Ivory Trade Boom Swamps Law Efforts

Reuters - Business Video Online (Dec. 17, 2014) Demand for ivory has claimed the lives of tens of thousands of African elephants and now a conservation report says the illegal trade is overwhelming efforts to enforce the law. Amy Pollock reports. 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