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:12/10/2014)... , December 9, 2014 ... BCARD Platform   ... meeting scheduling solutions for business-to-business (B2B) events, today ... leader in mobile near-field communication (NFC), Bluetooth low ...      (Logo: http://photos.prnewswire.com/prnh/20140612/691055) , Jifflenow will ...
(Date:12/4/2014)... , Dec. 3, 2014  Crossmatch™, a ... announced that its DigitalPersona ® Pro Enterprise ... have been deployed throughout First Bank branch locations ... South Carolina and Virginia. First Bank, ... Southern Pines, North Carolina , selected ...
(Date:11/21/2014)... -- According to a new market research ... Access Control, Intrusion Detection, Parking Management, Under Vehicle Inspection), ... Geography - Global Forecasts to 2020", published by MarketsandMarkets, ... around $25 Billion in 2014 and is expected to ... of 8.69%. Browse 116 market data Tables ...
Breaking Biology News(10 mins):Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 3First Bank Partners with Crossmatch to Increase Log In Security 2First Bank Partners with Crossmatch to Increase Log In Security 3Industrial Security Systems Market Worth $38 Billion by 2020 2Industrial Security Systems Market Worth $38 Billion by 2020 3
... Behaviour Using Accelerometry in Cane Toads Bufo marinus ... were introduced to Australia as a control agent but now ... they enter. Predictive models that can give expansion rates as ... to maximise control efficiency but to date no study has ...
... Does your drinking water smell foul, or are you ... Water treatment facilities currently use chlorine that produces carcinogenic ... University scientists have determined that ultra-violet (UV) light might ... of Tel Aviv University,s Porter School of Environmental Science ...
... supplements has found no evidence that they offer benefits for ... investigated the effects of taking omega-3 long-chain polyunsaturated fatty acid ... of participants aged 70-80 years. The number of people ... by 2040, more than 81 million people globally will have ...
Cached Biology News:Cane toad accelerometry and more 2Cane toad accelerometry and more 3Cane toad accelerometry and more 4Cane toad accelerometry and more 5Cane toad accelerometry and more 6Water, fair and foul 2Fish oil supplements provide no benefit to brain power 2
(Date:12/22/2014)... Dec. 22, 2014  ( www.competitivehealth.com ) — Competitive ... medical bill review and advocacy service, has signed an ... WellCard Savings discount health services marketplace. 63% ... more than they expected to pay. As part of ... costs, WellCard Savings is pleased to offer medical bill ...
(Date:12/22/2014)... 22, 2014 Fertility Associates of Memphis ... Bank USA , a network of more than 20 ... partnership, patients have fast access to a national pool ... IVF . Fertility Associates of Memphis is the only ... treatment option. , Dr. William Kutteh , director ...
(Date:12/19/2014)... BioPlus Specialty Pharmacy (BioPlus), one ... of Nick Maroulis, Pharm.D. to the newly created position ... In this position, Dr. Maroulis will continue to manage ... of our multi-site pharmacies as the company expands. Dr. ... that time he has served in many different capacities ...
(Date:12/19/2014)... Dec. 19, 2014 Bina Technologies, Inc. (Bina, ... that they have been acquired by Roche (SIX: RO, ... privately held company that provides a big data platform ... (NGS) data for the academic and translational research markets. ... and will continue to focus on development of their ...
Breaking Biology Technology:WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3BioPlus Specialty Pharmacy Promotes Dr. Nick Maroulis to Vice President of Specialty Pharmacy Services 2Bina Technologies is acquired by Roche. 2Bina Technologies is acquired by Roche. 3
... HEIGHTS, N.J., May 6 Genta,Incorporated (Nasdaq: ... received,notification from the NASDAQ Listing Qualifications Panel that ... sustain compliance with the,minimum stockholders, equity requirement for ... has also determined that de-listing from,The NASDAQ Capital ...
... May 6 Caliper Life,Sciences, Inc. (Nasdaq: ... the,Deutsche Bank,s 33rd Annual Health Care Conference in ... at 8:50 a.m. EDT. Kevin,Hrusovsky, President and CEO ... the,company,s business. The live webcast can be accessed ...
... Leading OAB Drug in China, PLYMOUTH MEETING, ... BJGP ) ("BMP Sunstone" or the "Company") ... Enablex(R),(Darifenacin) was officially accepted by China,s State Food ... SFDA requirement prior to,pursuing a clinical trial and, ...
Cached Biology Technology:Genta Announces Pending Transfer of its Common Stock to the Over-the-Counter Bulletin Board 2Genta Announces Pending Transfer of its Common Stock to the Over-the-Counter Bulletin Board 3BMP Sunstone Receives SFDA Acceptance for Enablex(R) Clinical Trial 2BMP Sunstone Receives SFDA Acceptance for Enablex(R) Clinical Trial 3
... PCR carry-over contamination, which prevents false ... products from previous PCR amplifications without ... improves amplification ,Optimized for use with ... instrument systems , The GeneAmp PCR ...
... that catalyzes the hydrolysis of,starch to ... dextrins. The,level of a-amylase in various ... of,clinical significance in the diagnosis of ... and microbial a-amylases are,important enzymes for ...
... Labsystems Wellmix is a high-quality four-place microplate ... The shaking speed is adjustable from 100 ... speed and a small orbit ensure effective ... time is quick and easy to set ...
Rabbit polyclonal to STUB1 ( Abpromise for all tested applications). entrezGeneID: 10273 SwissProtID: Q9UNE7...
Biology Products: