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:10/18/2014)... 2,000 patients referred for evaluation of suspected genetic ... for 25 percent, including detection of a number ... to disease, according to a study appearing in ... to coincide with the American Society of Human ... exons or coding regions of thousands of genes ...
(Date:10/17/2014)... release is available in German . ... a very few drugs. When treating overdoses, doctors are often ... especially difficult if there is a combination of drugs involved. ... and accidentally swallows his grandmother,s pills? ETH professor Jean-Christophe Leroux ... to find an answer to this question. "The task was ...
(Date:10/16/2014)... are anything but sustainable: environmental damage to soil ... increasingly evident. Despite their disadvantages, however, monocultures remain ... the sole possibility of achieving higher yields in ... an ecology professor at the University of Zurich, ... forestry. After all, a new study carried out ...
Breaking Biology News(10 mins):Whole-exome sequencing shows potential as diagnostic tool 2Emergency aid for overdoses 2Emergency aid for overdoses 3Plant communities produce greater yield than monocultures 2Plant communities produce greater yield than monocultures 3
... NEWTOWN SQUARE, Pennsylvania, September 27, 2011 An ... U.S. Forest Service,s Forest Inventory and Analysis (FIA) program ... eastern United States is increasing despite infestations of hemlock ... The information comes from an e-Science Update co-authored by ...
... ROUGE A research team led by LSU Associate Professors ... the results of a combined field and laboratory study showing ... living in Louisiana marshes. , The study, funded ... the Gulf of Mexico Research Initiative is being published in ...
... ... Presidential Early Career Award for Scientists and Engineers (PECASE). The award ... scientists and engineers in the early stages of their careers. ... significant award," said Jane Lubchenco, Ph.D., under secretary of commerce for ...
Cached Biology News:US Forest Service study finds hemlock still abundant despite adelgid infestation 2LSU researchers find impact of oil spill in marsh fish species 2President to honor high achieving, early career NOAA scientists 2
(Date:10/20/2014)... PARK, Calif. , Oct. 20, 2014 /PRNewswire/ ... today that the Company has signed a Notice ... of Regenerative Medicine (CIRM), effective October 1, 2014.  ... Clinical Development payments and the release of additional ... million CIRM grant award for clinical development of ...
(Date:10/20/2014)... , Oct. 20, 2014 PureTech ... company tackling big healthcare problems, announced today the ... round, with participation from Invesco Perpetual, a $120 ... used to drive PureTech,s existing pipeline forward and ... "PureTech has the scientific creativity to really go ...
(Date:10/19/2014)... 19, 2014 The Latin American hardware ... in Latin America with analysis and forecast of revenue. ... and is expected to reach $2,366.8 million by 2018, ... , Browse through the TOC of the Latin American ... the in-depth analysis provided. It also provides a glimpse ...
(Date:10/19/2014)... The Asian Automatic patient billing report defines and ... of revenue. The Automatic patient billing market in Asia ... 2018, at a developing CAGR of 7.2% from 2013 ... Asian Automatic patient billing market, to get an idea ... glimpse of the segmentation of this market in the ...
Breaking Biology Technology:Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 2Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 3Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 4PureTech Announces Expansion with Oversubscribed $55M Funding Round 2PureTech Announces Expansion with Oversubscribed $55M Funding Round 3PureTech Announces Expansion with Oversubscribed $55M Funding Round 4PureTech Announces Expansion with Oversubscribed $55M Funding Round 5PureTech Announces Expansion with Oversubscribed $55M Funding Round 6The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 2The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 3The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 2The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 3
... YORK, Aug. 24 The DNA sequencing equipment ... and 2012, spiraling upward from,$335 million to $528 ... Sequencing Equipment and Service Markets, a new report ... been relatively stable for the last,several years, with ...
... Conference Call Originally Scheduled for 9:00 a.m. Eastern Time ... Be Rescheduled After Private Placement Closes -, FREMONT, ... (Nasdaq: CIPH ), today announced that it,has entered ... with a group of existing and new investors. Under ...
... DIEGO, Aug. 23 eBioscience Corporation announced,the appointment ... eBioscience, effective,immediately. Dr. Nelson comes to eBioscience from ... Development. Dr. Nelson will assume the role ... as President during a transition period. Nelson will,also ...
Cached Biology Technology:DNA Sequencing Equipment Market to Fragment and Grow as Competition, New Technologies Develop 2Vermillion (Formerly Ciphergen) Announces $20.5 Million Private Placement of Common Stock 2Vermillion (Formerly Ciphergen) Announces $20.5 Million Private Placement of Common Stock 3Todd R. Nelson Named Chief Executive Officer of eBioscience, Inc. 2
Request Info...
... Cell Expansion Kit - Neurosphere is a system ... cell expansion as neurospheres in a serum free ... Plus Media Supplement, which has been optimized for ... al . (1996) Genes & Development 10 ...
... Source: Calf thymus Description: Topoisomerase I ... a transient breakage and rejoining of phosphodiester bonds ... allows molecules to be differentiated by a single ... I is active in the absence of Mn ...
... Topo I, Wild Type ... 1 mM DTT, 200 µM EDTA, 20% glycerol, ... I (Topo I) is a monomeric protein of ... It catalyzes the relaxation of both positive and ...
Biology Products: