Showing posts with the label Mosquitoes

Mosquitoes Have Learned to Avoid Pesticides Used to Kill Them Says a UK Study

Image credit: Pixabay Mosquitoes are getting smarter these days. With the changing environment, they are adapting to new ways of survival. According to the scientists at Keele University in the U.K , they are learning new ways to avoid pesticides used to kill them. Scientists studied two species of mosquitoes Culex quinquefasciatus and Aedes aegypti . These two species are responsible for spreading diseases such as West Nile Fever, Zika, malaria , yellow and dengue fever. In recent years, pesticide resistance among mosquitoes has increased. However, the extent of this ability in different species of mosquitoes is still unknown. Scientists found that the female mosquitoes have learned to identify the smell of venomous pesticides after a single harmless exposure to pesticides. During the experiment, researchers exposed female mosquitoes to safe doses of common anti-mosquito pesticides. They observed that mosquitoes that were earlier exposed to these pesticides avoided passing through t

Living with malaria

Everyone in India, at some point in their lives, may have been infected with malaria. Now this may sound a little out there, but may not be something far away from reality. Just recently, Times of India reported that 67 people died in Tripura of malaria in the last month alone, and 55 among them, were children. The north eastern state of our country is amongst one of the most gravely hit regions when it comes to malarial outbreaks, along with the other red zone regions, Andaman and Nicobar islands and Pondicherry.  Malaria has been around in India for quite a while now. In fact, the discovery of its vector- the mosquito was done here in India by Sir Ronald Ross who bagged the Nobel Prize in Physiology and Medicine for his discovery. There are about 250 million people affected every year with the malarial parasite, out of which nearly 2 million succumb to the disease. In India, alone we face a daunting number of around 30,000- 50,000 deaths caused due to malaria each year, m

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