2011年3月21日

A Safe New Substance to kill Mosquitoes That Spread Malaria

We all know that usually we use chemical insecticides to kill mosquitoes; meanwhile they harm people’s health and also poison the Earth’s environment. But there is only one earth that we should learn how to protect her to prevent continuing to be polluted.
Mosquito bite could cause malaria or dengue fever. Now the scientists at Hebrew University in Jerusalem developed a new natural substance that attracts and kills mosquitoes. The sugary bait is combined fruit juice oils and boric acid. The fruit juice gets the attention of the mosquitoes. Boric acid kills the insects when they eat it. Event better, the sweet smelling substance is harmless to people and animals. The scientists took the boric acid sweet bait to the West African nation of Mali. They sprayed it on plants near man-made ponds. Thirty-eight days of results show the sweet boric acid bait proved very effective at killing mosquitoes. There is a interesting message that female mosquitoes feed on sweet plant nectars to survive. Their blood feedings are part of reproduction.
There are too many high-tech chemical products which are polluting and poisoning our earth. We should to give up those are not environmentally friendly products, and use only organic non-toxic products.

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