Navigation Links
Bigger refuges needed to delay pest resistance to biotech corn
Date:6/8/2012

inst rootworms, they recommend increasing refuge requirements to 50 percent for corn producing one Bt protein and 20 percent for corn producing two Bt proteins.

"Corn rootworms can cost U.S. farmers close to $1 billion each year. Bt corn has helped to reduce these costs and to decrease insecticide sprays, but evolution of resistance by the pests can diminish or even eliminate these benefits," said Tabashnik, who heads the department of entomology in the UA College of Agriculture and Life Sciences.

"To delay pest resistance and sustain the benefits of Bt corn, we recommend planting more corn that does not produce Bt toxins active against rootworms. This refuge strategy allows the susceptible pests to survive and has worked to slow resistance of other pests to Bt crops."

"Most of the corn seed currently produced in the U.S. is transgenic and includes genes for insect control," said Gould. "Enlarging refuges will require more seed without corn rootworm control genes. This shift in production will take time, so this process should begin immediately."

In addition to increased refuge sizes, the authors write that the best way to postpone resistance is to use IPM, in which Bt corn is combined with other control tactics such as crop rotation and judicious use of insecticide sprays.

"We advocate greater use of integrated pest management, which is a common sense approach based on the best available combination of tactics," Tabashnik said. "The goals are to limit pest damage, maximize farmer profits and preserve environmental quality. Maintaining the effectiveness of Bt toxins can help us achieve these goals."

"We're seeing the early signs of rootworm resistance to Bt corn, which fit predictions from evolutionary theory and experiments in the lab and greenhouse," he added.

The paper indicates rootworm resistance to Bt corn was first detected in 2009 in Iowa; six years after sales of rootworm-killing Bt corn began
'/>"/>

Contact: Daniel Stolte
stolte@email.arizona.edu
520-626-4402
University of Arizona
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Bigger gorillas better at attracting mates and raising young
2. Increasing water scarcity in Californias Bay-Delta will necessitate trade-offs; hard decisions needed to balance various environmental risks
3. Urgent research needed to determine most effective follow-up care for lung cancer patients
4. Report addresses challenges in implementing new diagnostic tests where they are needed most
5. European mountain plant population shows delayed response to climate change
6. Researchers attempt to solve problems of antibiotic resistance and bee deaths in one
7. BRG1 mutations confer resistance to hormones in lung cancer
8. Genetic variation in East Asians found to explain resistance to cancer drugs
9. New paper examines poison resistance in snakes around the world
10. Hot on the trail of metabolic diseases and resistance to antibiotics
11. Notre Dame researchers using novel method to combat malaria drug resistance
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Bigger refuges needed to delay pest resistance to biotech corn
(Date:7/24/2014)... Bhavani Iyer, O.D., a low vision specialist at The ... Medical School, has been awarded a grant to help ... with eyeglasses, medication or surgery. , Even with corrective ... at best. However, there are a variety of low ... to help offset their vision loss. , Iyer is ...
(Date:7/24/2014)... experts gathered at NJIT this week for an all-day ... U.S. Environmental Protection Agency (EPA) to dredge toxic sediment ... , The EPA has called the plan, which proposes ... capping sections of the riverbed, one of the largest ... be dredged and disposed off-site. , "We need to ...
(Date:7/24/2014)... To reduce fire hazard in the United States, wildland ... woody shrubs and suppressed trees (ladder fuels). These ... periods of low fire danger in order to dispose ... hazardous air pollutants, managers often cover all or part ... referred to as agricultural plastic, in order to keep ...
Breaking Biology News(10 mins):UTHealth Dr. Bhavani Iyer awarded low vision grant 2Experts Weigh the Pros and Cons of a $1.7 Billion EPA Cleanup Plan for the Passaic River at an NJIT 2Study gives new perspective on agricultural plastic, debris burning, and air quality 2
... to the growing list of genetic variants that determine ... by Cell Press on December 30 in the ... previously unknown variants associated with height and might provide ... Although environmental variables can impact attained adult height, ...
... large quantities of nitrate-rich fertilizer to realize optimal ... to balance the amount of nitrogen needed for ... leach into ground and surface waters. Increased interest ... to identify genotypes that have a characteristic called ...
... producers have traditionally relied heavily on hand thinning, a ... increasing labor costs and a limited workforce, peach and ... such as string thinners to minimize the need for ... promising results when it was evaluated in four U.S. ...
Cached Biology News:Large-scale analysis identifies new genetic alterations associated with height 2Improving nitrogen use efficiency lessens environmental impact 2Hybrid string blossom thinner tested in peach orchards 2
(Date:7/25/2014)... 2014 According to a new market ... - Global Industry Analysis, Size, Share, Growth, Trends and ... is estimated at USD 161,056.5 million in 2014 and ... from 2014 to 2020, to reach an estimated value ... drugs market is witnessing a significant growth due to ...
(Date:7/25/2014)...  Galmed Pharmaceuticals Ltd. (Nasdaq: GLMD ) ... and commercialization of a once-daily, oral therapy for the ... financial results for the period ended June 30, 2014. ... Reported cash and cash equivalents totaling $37.4 million on ... 2013.  , Reported a net loss of $3.9 ...
(Date:7/24/2014)... -- Keryx Biopharmaceuticals, Inc. (Nasdaq:KERX) (the "Company") announced the ... Phase 3 study of Zerenex (ferric citrate), the Company,s ... of hyperphosphatemia in patients with end-stage renal disease (ESRD) ... delivery with FErric CiTrate in EsrD) was published online ... of Nephrology ( JASN ). , ...
(Date:7/24/2014)... , July 24, 2014  Asterias Biotherapeutics, Inc. ... emerging field of regenerative medicine, announced today that ... presentation to investors on Tuesday, July 29, 2014, ... presentation will include an overview of Asterias, business ... webcast, visit http://www.ustream.tv/channel/asterias-biotherapeutics at least 15 ...
Breaking Biology Technology:Biological Drugs Market: Global Industry Analysis, Size, Share, Growth, Trends and Forecast 2014 - 2020 2Biological Drugs Market: Global Industry Analysis, Size, Share, Growth, Trends and Forecast 2014 - 2020 3Galmed Pharmaceuticals Reports First Half 2014 Financial Results 2Galmed Pharmaceuticals Reports First Half 2014 Financial Results 3Galmed Pharmaceuticals Reports First Half 2014 Financial Results 4Galmed Pharmaceuticals Reports First Half 2014 Financial Results 5Galmed Pharmaceuticals Reports First Half 2014 Financial Results 6Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 2Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 3Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 4Asterias Biotherapeutics Announces Live Investor Webcast 2Asterias Biotherapeutics Announces Live Investor Webcast 3Asterias Biotherapeutics Announces Live Investor Webcast 4
... 2011 Operational and Financial Results ... ... --> ... var first_result; // Results are keyed by longUrl, so we need to grab the first one. for (var r ...
... Nov. 11, 2010 StemCyte, Inc., one of the ... companies, is proud to announce that the Company has ... U.S. Internal Revenue Service,s Qualifying Therapeutic Discovery Project (QTDP) ... fewer than 250 employees. The Patient Protection ...
... (Nasdaq: ARAY ), a global leader in the ... to present at the Lazard Capital Markets, Healthcare Conference in ... a.m. ET/7:30 a.m. PT. A live webcast of ... page of the Company,s Web site at http://www.accuray.com . ...
Cached Biology Technology:YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 2YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 3YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 4YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 5YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 6YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 7YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 8YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 9YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 10YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 11YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 12YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 13YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 14StemCyte Awarded $488,950 for Advanced Therapeutic Applications of Umbilical Cord Blood Stem Cells from the Qualifying Therapeutic Discovery Project (QTDP) 2Accuray Incorporated to Speak at Seventh Annual Lazard Capital Markets' Healthcare Conference 2
... number is a new product ... Cornings product number. If showing ... under the old Sigma-Aldrich number ... for assistance. ID clarifier: rack ...
... of X-ray crystallography services for structure-based ... to its pharmaceutical and biotechnology clients. ... drug-like fragments to the active sites ... scientists to develop novel, high-affinity inhibitors. ...
...
... monitoring acetylcholinesterase (AChE) activity. This is a ... min), non-radioactive and easy to use assay ... substrate, acetylcholine. A series of coupled enzyme ... into a change in luminescence. Inhibitors of ...
Biology Products: