Navigation Links
New insect birth control strategy zaps cotton pests
Date:11/7/2010

" Tabashnik said. "The sterile insects soak up the reproductive potential of the wild population. If you have a high enough ratio of sterile to wild moths, you can drive the reproduction of the wild population to zero."

The release of sterile insects to control pests is not new. But this is the first time the sterile insect technique has been used in concert with a Bt crop.

A limitation of the sterile release strategy is that extremely large numbers of sterile insects can be necessary to block reproduction of the wild population, according to Tabashnik. "It becomes a question of logistics: Can you deliver enough sterile insects to overwhelm the wild population?"

"Let's say you have a million pests per field in non-Bt cotton fields. There is no way you could release a billion sterile insects per field per week."

But in combination with planting Bt cotton, the strategy turned out to be extremely powerful, Tabashnik's group discovered since tests started in 2006. Tabashnik explained: "On the Bt cotton, pink bollworm survival is virtually zero. This makes it much easier to overwhelm the wild population."

In addition to promising sustained, long term pest control without spraying insecticides for pink bollworm, the new strategy frees up acreage that otherwise would have to be set aside for refuges, thereby avoiding yield losses.

Since the eradication program began in Arizona in 2006, pink bollworm populations have declined dramatically. In 2009, only two pink bollworm larvae were found in 16,600 bolls of non-Bt cotton screened across the state. From 2005 to 2009, the pink bollworm infestation rate dropped by 99.9 percent. Along with the decline, insecticide sprays fell to historic lows. Whereas Arizona cotton growers lost $18 million per year to pink bollworm management between 1990 and 1995, that cost plummeted to an average of $172,000 per year between 2006 and 2009.

Compared with 1995, Arizona growers' in
'/>"/>

Contact: Daniel Stolte
stolte@email.arizona.edu
520-954-1964
University of Arizona
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Raising giant insects to unravel ancient oxygen
2. New software eases analysis of insect in motion
3. Entomological Society of America names 2010 Insect Science Award winners
4. Insecticides from genetically modified corn present in adjacent streams
5. New technique uncovers hidden insecticide resistance
6. Fruit flies help Yale scientists sniff out new insect repellents
7. Insect brains are rich stores of new antibiotics
8. Artificial bee eye gives insight into insects visual world
9. ARS, industry cooperation yields device to detect insects in stored wheat
10. Tiny insect brains capable of huge feats
11. Cycad plant depends on insect for multiple services
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New insect birth control strategy zaps cotton pests
(Date:7/11/2014)... Evidence exists that cannabinoid receptor type 1 ... Ca2+ influx, and reduce neurotransmitter release. However, ... 1 can increase extracellular Ca2+ influx and ... his team, Tongji Hospital Affiliated to Tongji ... Technology, China used whole cell voltage-clamp and ...
(Date:7/10/2014)... , June 27, 2014  The American ... National Institute of Standards and Technology (NIST) and ... its academic research and forensic science expert members ... Board is an element of the NIST,s Organization ... are among the first appointments made to the ...
(Date:7/10/2014)... , July 2, 2014 It is a ... announce the appointment of the world-renowned Thoracic and Cardiovascular ... Directors. Dr. Ginsburg, with over 34 years ... Presbyterian Hospital and Good Samaritan Regional Medical Center. Dr. ... the late 1980,s and is considered an expert in ...
Breaking Biology News(10 mins):Ten Members of the American Academy of Forensic Sciences Appointed to Forensic Science Standards Board (FSSB) 2Ten Members of the American Academy of Forensic Sciences Appointed to Forensic Science Standards Board (FSSB) 3Avery Biomedical Devices, Inc. announces the appointment of Mark E Ginsburg, M.D. to its Board of Directors 2
... in the production of corn and soybean are frequently ... exceed drinking water standards in areas where these crops ... used as sources of drinking water this contamination can ... seek alternative sources of supply. Additionally, these herbicides can ...
... Austin, Texas Conference to Showcase UAV, Biometric Technology on Heels of ... Border Fence Lawsuit, Calibre Press ... ... A coalition of Texas,border mayors and county commissioners from El Paso to Brownsville joined ...
... eat, may be the latest recipe for success when it ... Despite the recent popular attention to the distance that food ... researchers Christopher L. Weber and H. Scott Matthews argue in ... journal that it is dietary choice, not food miles, which ...
Cached Biology News:Herbicide-tolerant crops can improve water quality 2Government, Industry Leaders Come Together to Explore Technology Alternatives to Border Fence for Security, Surveillance 2Government, Industry Leaders Come Together to Explore Technology Alternatives to Border Fence for Security, Surveillance 3Carnegie Mellon studies how climate change impacts food production 2
(Date:7/10/2014)... Robert Harman, DVM, Founder and CEO of Vet-Stem, ... announce the relaunch of his highly informative blog, now named ... “ What are Stem Cells ?” Dr. Harman’s purpose ... in the basics of stem cell therapy so that pet ... of treatment when considering regenerative medicine. , A veterinarian by ...
(Date:7/10/2014)... , July 10, 2014  Franciscan ... use of capnography for respiratory monitoring outside ... of healthcare leaders in embracing state-of-the-art patient ... effectively patients are breathing and can alert ... By measuring the amount of carbon dioxide ...
(Date:7/10/2014)... , July 10, 2014 Research ... addition of the "International Photonic Integrated Circuit ... Forecasts to 2019" report to their offering. ... The concept of photonic integration traces its ... century. The promise of photonic integration went unexplored ...
(Date:7/10/2014)... 2014 Using microscopic polymer light resonators that ... at MIT,s Quantum Photonics Laboratory have developed new ... parts-per-billion range. Optical sensors are ideal for detecting ... ratio, compact, lightweight nature, and immunity to electromagnetic ... been developed before, the MIT team conceived an ...
Breaking Biology Technology:Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 2Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 3Franciscan St. Anthony Health-Crown Point Underscores Patient Safety Commitment Through Expanded Use of Capnography 2International Photonic Integrated Circuit (Monolithic Integration, Hybrid Integration, Module Integration) Market - Forecasts to 2019 2Swell new sensors 2
... cutting-edge health care possibilities based on the genetic variation ... the new science at home, says a major new ... In a special six-paper supplement of the journal ... Centre for Global Health (MRC), Toronto, say four countries ...
... Sept. 19 /PRNewswire-FirstCall/ - BioMS Medical Corp (TSX:,MS), a ... today,announced that Mr. Tony Hesby, Executive Vice President, Corporate ... in Europe Investor,Forum in Zurich, Switzerland., WHEN: ... WHERE: Zurich, Switzerland About Sachs Associates ...
... SHANGHAI, China, Sept. 19 /Xinhua-PRNewswire-FirstCall/ --,China-Biotics, Inc. ... leading Chinese firm specializing in the manufacture,research, ... today that at its 2008 Annual General ... of the Company,s nominees to the,Board of ...
Cached Biology Technology:As personalized, genomic medicine takes off, four developing countries show the way for others 2As personalized, genomic medicine takes off, four developing countries show the way for others 3As personalized, genomic medicine takes off, four developing countries show the way for others 4As personalized, genomic medicine takes off, four developing countries show the way for others 5As personalized, genomic medicine takes off, four developing countries show the way for others 6As personalized, genomic medicine takes off, four developing countries show the way for others 7BioMS Medical to present at Sachs Associates Biotech in Europe Forum 2China-Biotics, Inc. Announces Results of 2008 Annual General Meeting of Shareholders 2
... DNA detection has been improved. With Gene Coloring ... can be detected > 20 ng. The excised ... organic solvent extraction or with other commercially available ... DNA excised from agarose gel can be used ...
Mouse monoclonal antibody raised against a partial recombinant ST3GAL2. NCBI Entrez Gene ID = ST3GAL2...
... Serum-free adapted Sf9 derivative for high-yield protein ... Cells are derived from a high-yielding clone ... Novagen serum-free TriEx Insect Cell Medium, these ... protein yields by either baculovirus infection or ...
Mouse monoclonal antibody raised against a partial recombinant VRK2. NCBI Entrez Gene ID = VRK2...
Biology Products: