Navigation Links
Paraquat resistance discovered in major weed
Date:10/19/2010

Scientists at the University of Adelaide have discovered new cases of herbicide resistance in annual ryegrass, one of the world's most serious and costly weeds.

For the first time, researchers have found that annual ryegrass has developed resistance to paraquat, the second most important "knockdown" herbicide used by cropping farmers.

Weed management experts Dr Peter Boutsalis and Associate Professor Christopher Preston, from the University's Waite Research Institute, made the discovery in samples taken from two separate farming properties near the South Australian town of Naracoorte.

Annual ryegrass is a major weed worldwide. It is particularly damaging to crops in countries with a Mediterranean climate, with Australia, South Africa, Argentina, Spain and Italy among the worst affected.

Dr Preston says farmers should be concerned about the development of herbicide resistance.

"This discovery has major implications for farmers," Dr Preston says.

"Paraquat is the only viable herbicide alternative to the most commonly used herbicide, glyphosate. With more than 100 annual ryegrass populations in Australia already having developed resistance to glyphosate, the discovery of paraquat resistance means that none of the currently available knockdown herbicides can be guaranteed to control ryegrass," he says.

"The paraquat resistant ryegrass was discovered on sites where pasture seed crops have been grown for a long time and paraquat extensively used."

Dr Preston says farmers should rotate their knockdown herbicides in alternate seasons and adopt integrated weed management practices.


'/>"/>

Contact: Dr. Christopher Preston
christopher.preston@adelaide.edu.au
61-883-037-237
University of Adelaide
Source:Eurekalert

Page: 1

Related biology news :

1. Breast cancer treatment resistance linked to signaling pathway
2. New estrogen receptor found to be key player in tamoxifen resistance
3. Montana State University researchers find gene that regulates molds resistance to drugs
4. Lead-flapping objects experience less wind resistance than their trailing counterparts
5. New papers offer insights into process of malarial drug resistance
6. Describing soils: Calibration tool for teaching soil rupture resistance
7. Stroma genomic signature predicts resistance to anthracyclin-based chemotherapy in breast cancer
8. Decreasing insulin resistance prevents obesity-related cardiovascular damage
9. Breaking the barrier: Discovery of anti-resistance factors and novel ocean drugs
10. Building strong bones: Running may provide more benefits than resistance training, MU study finds
11. NIH funds development of resistance-breaking insecticides to reduce malaria transmission
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/19/2017)... New York , April 19, 2017 ... competitive, as its vendor landscape is marked by the ... the market is however held by five major players ... Safran. Together these companies accounted for nearly 61% of ... of the leading companies in the global military biometrics ...
(Date:4/13/2017)... SANTA MONICA, Calif. , April 13, 2017 /PRNewswire/ ... New York will feature emerging and ... Innovation Summits. Both Innovation Summits will run alongside the ... variety of speaker sessions, panels and demonstrations focused on ... east coast,s largest advanced design and manufacturing event will ...
(Date:4/11/2017)... , Apr. 11, 2017 Research and ... Market 2017-2021" report to their offering. ... The global eye tracking market to grow at a ... report, Global Eye Tracking Market 2017-2021, has been prepared based on ... covers the market landscape and its growth prospects over the coming ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... 11, 2017 , ... Disappearing forests and increased emissions are the main causes ... each year. Especially those living in larger cities are affected by air pollution related ... the most pollution-affected countries globally - decided to take action. , “I knew I ...
(Date:10/10/2017)... ... October 10, 2017 , ... For the ... won a US2020 STEM Mentoring Award. Representatives of the FirstHand program travelled to ... Experience from US2020. , US2020’s mission is to change the trajectory of STEM ...
(Date:10/10/2017)... ... 2017 , ... The Pittcon Program Committee is pleased to ... who have made outstanding contributions to analytical chemistry and applied spectroscopy. Each award ... conference and exposition for laboratory science, which will be held February 26-March 1, ...
(Date:10/9/2017)... San Antonio, Texas (PRWEB) , ... ... ... a new study published on October 5, 2017, in the medical journal, ... demonstrated equivalence with the gold standard, video EEG, in detecting generalized tonic-clonic ...
Breaking Biology Technology: