Navigation Links
Insecticide combo delivers knockout punch
Date:3/11/2008

nst toxins and chemicals in its diet," said Luthe.

The researchers fed insects a sub-lethal dose of the two insecticides to test the effectiveness of both insecticides on the pests.

They found that when used alone, a concentration of Bt at five parts per billion killed four percent of all corn earworms and five per cent of tobacco budworms. Mir1-CP, when used at a concentration of 60 parts per billion, killed eight percent of the corn earworms and three percent of the tobacco budworms.

But when researchers added the two insecticides together, the mixture killed 61 per cent of corn earworms and 57 percent of tobacco budworms, which is more than 10 times better than either by itself. Researchers saw similar results against the fall armyworm and the southwest corn borer, when the insecticides were used at slightly different strengths.

In addition to a high mortality rate among the insects, the study indicates a significant decrease in the growth rate of the survivors.

"We think that Mir1-CP is making holes in the membrane, which in turn is making it easier for the Bt toxins to reach the insects' midgut," explained Luthe, whose work is funded by the National Science Foundation.

The Penn State researcher says the findings have important implications for agriculture because each year insects cause major losses to farmers. Nearly 20 per cent of major crops worldwide are lost to insects.

Genetically modified crops that produce the Bt toxin have managed to check the insects to some extent but Luthe says insects may be winning the fight.

"Researchers in the Mississippi delta have found resistance to Bt among some insect populations in the region," Luthe noted. "There is a chance that some time in the future Bt will not be as effective against pests as it is now."

The Penn State researcher suggests strains of corn that naturally produce Mir1-Cp could be cross-bred with other strains of corn that
'/>"/>

Contact: Amitabh Avasthi
axa47@psu.edu
814-865-9481
Penn State
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Natural insecticide re-created in the lab
2. Cigarette smoke, alcohol damage hearts worse as combo
3. e-Smart(R) Technologies Delivers Its New Super Smart Card(TM) in South Korea.
4. DOE JGI Community Sequencing Program delivers first moss genome
5. Lupus Research Institute strategy delivers $30 million in national funding
6. Mountain pine beetle: Canadas new government delivers
7. Scientists decipher mechanism behind antimicrobial hole punchers
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/18/2015)... 17, 2015 Research and Markets ( ... "Global Biometric Authentication & Identification Market: Focus ... Forecast, 2015-2020" report to their offering. ... systems market is expected to grow at an ... and generate over $25 billion (approximately) by 2020 ...
(Date:8/12/2015)... , Aug. 12, 2015  Synaptics Inc. (NASDAQ: ... interface solutions, today announced that four of its ... solution, have officially been named FIDO Certified™ by ... of the certification, Synaptics, Natural ID™ fingerprint solutions ... Authentication Framework (UAF) standard and are interoperable among ...
(Date:8/6/2015)... BOSTON and TELTOW, Germany ... the 2015 Siggraph Conference, SensoMotoric Instruments (SMI) ... augmented reality , based on Epson,s Moverio ... eye tracking platform. With this new solution, unprecedented quality ... multi-modal, hands-free interaction with context-sensitive displays. For the first ...
Breaking Biology News(10 mins):Global Biometric Authentication & Identification Market 2015: Focus On Modality, Motility & Application - Estimation & Forecasts to 2020 for the $25 Billion Industry 2Synaptics Announces FIDO Certification of Natural ID Fingerprint Solutions 2Synaptics Announces FIDO Certification of Natural ID Fingerprint Solutions 3SMI Shows First Eye Tracking Upgrade for Augmented Reality Glasses 2SMI Shows First Eye Tracking Upgrade for Augmented Reality Glasses 3
... Tampa, Fla. (Dec, 19 2011) A ... into rats modeled with amyotrophic lateral sclerosis (ALS), ... lethal, neuromuscular disease, have tested four different immunosuppressive ... therapeutic effects. Their study demonstrated that a combined, ...
... Tampa, Fla. (Dec, 19 2011) Bone marrow-derived stem ... because they can contribute to different cell populations in a ... BMDC studies have been aimed at repairing damaged brain tissue ... focused on BMDC transplants to the cerebellum at the back ...
... disease drug discovery, MMV and SCYNEXIS, Inc. have assembled a ... antimalarial activity and will provide it to researchers at no ... confirmed activity against the blood-stage of P. falciparum ... were selected by experienced medicinal chemists from an extensive screening ...
Cached Biology News:Grafting of human spinal stem cells into ALS rats best with immunosuppressant combination 2Bone marrow-derived cells differentiate in the brain through mechanisms of plasticity 2MMV and SCYNEXIS offer 400 active compounds for neglected disease drug research at no cost 2
(Date:8/28/2015)... Aug. 28, 2015 Research ... of the "Global & USA BioSimilar Market Analysis ... The highly awaited US Biosimilar market will be initiated ... biologic, Zarxio. How will the global market react? Will ... that biosimilars could save the US economy up to ...
(Date:8/28/2015)... , Aug. 28, 2015 /PRNewswire/ - RepliCel ... stage regenerative medicine company focused on the development ... for the quarter ended June 30, 2015, corporate ... and management report are available at www.sedar.com ... . "RepliCel expects to launch ...
(Date:8/27/2015)... ... August 27, 2015 , ... Capital Edge Consulting ... business problems, is pleased to announce their ranking as one of the top 5000 ... the fastest-growing private companies across the nation. , “It is truly an honor to ...
(Date:8/27/2015)... 27, 2015  Asterias Biotherapeutics, Inc. (NYSE MKT: AST), ... regenerative medicine, today announced that executives from the company ... of September.  , Pedro Lichtinger ... Renshaw,s 17th Annual Global Investment Conference on Wednesday, September ... Regis Hotel in New York City ...
Breaking Biology Technology:Global & USA BioSimilar Market Analysis Report 2015-2021 2Global & USA BioSimilar Market Analysis Report 2015-2021 3RepliCel Reports Second Quarter 2015 Financial Results 2RepliCel Reports Second Quarter 2015 Financial Results 3RepliCel Reports Second Quarter 2015 Financial Results 4RepliCel Reports Second Quarter 2015 Financial Results 5Capital Edge Consulting Makes Inc. 5000 List of America’s Fastest-Growing Private Companies 2Capital Edge Consulting Makes Inc. 5000 List of America’s Fastest-Growing Private Companies 3Asterias Biotherapeutics to Present at Upcoming Investor Conferences 2
... researchers have made a breakthrough in understanding the effect ... pollution. The discovery could lead to more accurate forecasting ... Anderson. , Crozier is an associate professor in ASU,s ... College of Liberal Arts and Sciences and the Ira ...
... Verenium Corporation,(Nasdaq: VRNM ), a leading developer ... development of high-performance specialty enzymes, announced,today that Gerald ... at,the upcoming Canaccord Adams 28th Annual Global Growth ... a.m. ET on Thursday, August 14,and will take ...
... Monogram,Biosciences, Inc. (Nasdaq: MGRM ) announced today that ... an update on the company,s business,at the Thomas Weisel ... a.m. (Eastern Time) at the Four Seasons Hotel in ... the subsequent archived,recording, log on to http://www.monogrambio.com ...
Cached Biology Technology:Forward step in forecasting global warming 2Forward step in forecasting global warming 3Verenium Corporation to Present at Canaccord Adams 28th Annual Global Growth Conference 2Verenium Corporation to Present at Canaccord Adams 28th Annual Global Growth Conference 3Monogram Biosciences to Present at the Thomas Weisel Partners Healthcare Conference 2008 2
Mouse Activin RIB/ALK-4 MAb (Clone 207304)...
... 19 x 29 cm, 1. One ... staining of Coomassie Blue or silver-stain gels ... blots for high sensitivity ECL detection and ... volume, and processing time.Proven design for consistent, ...
Cytidine 5'-Triphosphate, Sodium (CTP), 1 g. Category: Nucleotides & Enzymes & Biochemicals, Nucleotides, Additional Nucleotide Products....
... Reagent Pack, 1. Contains reagents for ... mouse and rabbit primary antibodies. Designed for ... reagents are not included, but the system ... Category: Blotting & Labeling & Detection, ...
Biology Products: