Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Mosquito repellent no longer scares off mosquitoes

06.05.2010
Mosquitoes can develop a resistance to substances used to repel them. This has been shown for the first time in laboratory tests at the Swedish University of Agricultural Sciences (SLU) and associates in the UK.

It is the yellow fever mosquito that has developed a resistance to the mosquito repellent DEET, a substance used in mosquito repellents all over the world. In Sweden it is found in the products MyggA and Djungelolja (Jungle Oil). The capacity of mosquitoes to develop resistance has been shown to be hereditary.

“Through testing, we have found that yellow fever mosquitoes no long sense the smell of DEET and are thereby not repelled by it. This is because a certain type of sensory cell on the mosquito’s antenna is no longer active” says Rickard Ignell, a researcher at the Division for Chemical Ecology at SLU in Alnarp.

Rickard Ignell performed the research in collaboration with Rothamstead Research in the UK. The findings were recently published in the scientific journal Proceedings of National Academy of Sciences (PNAS).

The scientists have thus seen that the sensory cell on the mosquito’s antenna has stopped reacting to DEET. This have many explanations, such as the protein that binds in to DEET having mutated.

“More research is needed to find out what the mechanism is,” says Rickard Ignell.

The researchers are now urging restrictiveness in the use of DEET and other mosquito repellents on a large scale in a limited area, in order not to make other mosquito species resistant.

More Information: Rickard Ignell,Chemical Ecology Group, SLU in Alnarp, Rickard.Ignell@ltj.slu.se; +46-735 984 871

Pressofficer Carin Wrange; Carin.Wrange@adm.slu.se; +46-70 247 84 22

Weitere Informationen:
http://www.pnas.org/content/early/2010/04/26/1001313107.abstract?sid=51b28a88-d8... article in PNAS

http://www.chemicalecology.se Chemical Ecology Group

Carin Wrange | idw
Further information:
http://www.chemicalecology.se
http://www.pnas.org/content/early/2010/04/26/1001313107.abstract?sid=51b28a88-d850-4780-aa47-835b3f33663d

Further reports about: Chemical Ecology mosquito yellow fever mosquito

More articles from Life Sciences:

nachricht Researchers identify potentially druggable mutant p53 proteins that promote cancer growth
09.12.2016 | Cold Spring Harbor Laboratory

nachricht Plant-based substance boosts eyelash growth
09.12.2016 | Fraunhofer-Institut für Angewandte Polymerforschung IAP

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Researchers identify potentially druggable mutant p53 proteins that promote cancer growth

09.12.2016 | Life Sciences

Scientists produce a new roadmap for guiding development & conservation in the Amazon

09.12.2016 | Ecology, The Environment and Conservation

Satellites, airport visibility readings shed light on troops' exposure to air pollution

09.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>