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:12/6/2016)... DALLAS , Dec. 6, 2016 ... criminal justice technology solutions for public safety, investigation, ... (PEP) jointly announced today a five (5) year ... exclusive agreement to expand the rehabilitation and reentry ... PEP History Established in 2004, the Prison ...
(Date:12/2/2016)... 2016   SoftServe , a global digital ... an electrocardiogram (ECG) biosensor analysis system for continuous ... asset. The smart system ensures device-to-device communication between ... and mobile devices to easily ,recognize, and monitor ... vehicle technology advances, so too must the security ...
(Date:11/29/2016)... , Nov. 29, 2016 BioDirection, a privately ... products for the objective detection of concussion and other ... has successfully completed a meeting with the U.S. Food ... blood test Pre-Submission Package. During the meeting company representatives ... as a precursor to commencement of a planned pilot ...
Breaking Biology News(10 mins):
(Date:12/8/2016)... , December 8, 2016 ... Unternehmen für Molekulargenetik, erweitert seine Palette an anpassbaren ... NGS Custom FH Panels, das ein schnelles und ... ermöglicht. Das Panel bietet eine Erkennung von Einzel-Nukleotid-Variationen ... (CNV) mit einem einzigen kleinen Panel und ermöglicht ...
(Date:12/8/2016)... ... December 08, 2016 , ... ... In response to client demand KbioBox developed a sophisticated “3 click” gene dditing ... are accessible from KBioBox’s new website, https://www.kbiobox.com/ and powered by ...
(Date:12/8/2016)... Iowa (PRWEB) , ... December 08, 2016 , ... This ... asynchronous approvals for biotech crops. The authors focus on the economic effects in countries ... global approval of new biotech crops and the resultant risk of low level presence ...
(Date:12/8/2016)... Fla. , Dec. 8, 2016  HedgePath ... company that discovers, develops and plans to commercialize ... its shares of common stock were approved for ... will begin trading on the OTCQX, effective today, ... qualify for the OTCQX market, companies must meet ...
Breaking Biology Technology: