New evidence published online in Pest Management Science reports the first signs of resistance to pyrethroid insecticides in a population of mosquitoes from Marin County, California. The species in question is not only a major pest, but also acts as a vector of West Nile virus, a virus that spread rapidly westward across the United States after it first invaded the new world in New York in 1999.
The study, carried out by researchers in California, determined that the Culex pipiens complex mosquitoes displayed tolerance to pyrethroids, which are commonly used agricultural pesticides. Mosquitoes of the same species in Africa and Asia have displayed pyrethroid tolerance, but this report is the first to indicate tolerance in North American mosquitoes.
The pyrethroid-resistance mosquitoes originated from a population that was breeding in pools of water under an apartment below ground. It is not known whether this below-ground population has genetic interaction with the above-ground species not displaying resistance to pyrethroids, but the possibility exists that the resistant genes will spread.
Jaida Harris | alfa
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On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.
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At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.
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Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.
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