Summer is here, and mosquitoes are gradually increasing. A method of killing mosquitoes in an alkaline water basin has recently been reposted by netizens on Weibo, and even some official Weibo of big V have also reposted it. Does this "secret to kill mosquitoes and cockroaches" really work? Ji Hengqing, director of the Institute of Disinfection and Vector Control of the Chongqing Center for Disease Control and Prevention, said that the sought-after mosquito control method is not reliable.
The method of online transmission is very simple: shred the soap and mix it with washing powder, pour it into a small basin and place it in a corner of the house where mosquitoes are rampant, to achieve the effect of killing mosquitoes. The principle is to use the fragrance of washing powder and soap to let mosquitoes lay their eggs in it. Because washing powder and soap are alkaline substances, mosquito eggs cannot survive, and the number of mosquitoes will gradually decrease until they become extinct.
The poster claims that this method works wonders, guaranteeing that the number of mosquitoes will plummet after 3 days, and that the water basin will be full of mosquito corpses after 10 days.
Ji Hengqing said that in a highly concentrated alkaline environment, it is indeed not conducive to the survival of mosquito eggs, but there is no scientific basis for the fragrance of laundry detergent and soap to attract mosquitoes to lay eggs here. "Mosquitoes like to lay eggs in sewage or paddy fields under natural conditions, their sense of smell is very sensitive, and the smell of alkaline substances has a certain repelling effect. There is no other water source to choose from in the surrounding environment.”
Previous media experiments have also proved this statement. In the experiment, an alkaline water basin was placed in three different environments where mosquitoes often haunt. After 5 days, there were soap flocculent sediments on the bottom of the three alkaline water basins, but no mosquitoes; 10 days later, the three alkaline water basins were floating. Some unknown bug corpses, but none of the mosquitoes were seen.
Director Ji reminded that mosquitoes like to lay their eggs in an environment with water, and the flowerpot trays, empty fish tanks, pickle jars, and vase water at home are all breeding grounds. Therefore, these items should pay attention to frequent water changes and frequent cleaning. Don't leave the fish tank empty, you can feed a few fish to help eliminate mosquito eggs. ("Chongqing Evening News")
