The spray of volcanic glass effectively kills malaria mosquitoes

Mosquito foot, covered with perlite

Volcanic glass, perlite is used mainly as nutritional supplements for fertilization or create insulation for buildings. Scientists at the University of North Carolina and the Liverpool school of tropical medicine found a new use for it, developed on its basis an effective tool against malarial mosquitoes – Imergard WP.

It is a spray consisting of water and powder of perlite. The reason for the interest in new compounds that currently used protivostoyanie insecticides are very toxic and cause harm, as the natural environment and people.

A new tool was tested on four groups of huts in the Republic of Benin in West Africa. Wall one group of huts were treated Imergard WP, another common insecticide by piretroids and the third a combination of the two means. The fourth group of huts was a control, it was not processed.

As a result, scientists have discovered that the walls of the huts immediately after processing Imergard WP and its mixture with piretroids killed the largest number of vectors of malaria, Anopheles gambiae. And even six months after treatment, the mortality rate of mosquitoes on the walls of the huts with Imergard WP remained at 78%, at the same time, on walls treated with pyrethroides it fell to 25 %.

According to scientists, the reason for the effectiveness Imergard WP in the fact that the particles of perlite, settling on insects violate the protective properties of the lipid layer on their outer epidermis. As a result, the mosquitoes just shrivel up and die from dehydration.

Other important advantages Imergard WP – ecological safety and low production costs.

Leave a Reply

Your email address will not be published. Required fields are marked *


Physicists have learned to turn plastic bottles in supercapacitors

Scientists from the University of California, riverside have developed a technology to produce components for supercapacitors from regular waste. We are talking about polyethylene terephthalate or PET, which is made most of plastic bottles. This material is from an economic point of view is significantly superior to high-tech raw materials, like graphene or carbon nanotubes. […]

Looks like a screwdriver of the XXI century

Recently Techcult wrote about the drill of the XXI century with a touchscreen and lasers. But the screwdriver is traditionally considered to be more simple, reliable and very straightforward tool. What similar high-tech screwdriver advanced Italian production? And it is similar to the Kinetic device Driver. Kinetic Driver designed by the Italian designer Giacomo Di […]

Our Solar system is most similar to space croissant

The sun emits powerful electromagnetic winds that envelop the planet in our solar system like a giant bubble. This magnetic bubble is called the heliosphere and protects the planet from dangerous space radiation. Scientists have long believed that the heliosphere is in the form of a comet – with a distinct nose and long flowing […]

Some homemade masks turned out to be more dangerous than no

Despite the fact that the industry has recovered from the shock of the first days of the pandemic COVID-19 and now produces enough facial masks of different types, most people in the world due to various reasons use homemade versions. Everyone understands that they are less effective than professional medical model, but the question is: […]