Ultrasonic bracelets, mosquito repellent plants ... Is these mosquito -proof methods reliable?

Compared with traditional chemical mosquito repellent and physical mosquito prevention methods such as mosquito coils and electric mosquitoes, there are still "high -tech" sound waves on the market. The reporter searched the relevant app in the mobile phone application market, claiming that they could drive mosquitoes by playing music or sound waves, and the download volume was quite high. The reporter then searched for the "ultrasonic mosquito repellent bracelet" on an e -commerce platform, popping up hundreds of products with different brands, and many also claimed that "pregnant women can use it."

However, many citizens who have tried it reported that "ultrasonic mosquito repellent" sounded very scientific and technological, but it was actually "pseudo -black technology". In a review of a hot -selling product, some people say that "there is no mosquito at all, or was bitten by mosquitoes"; some people say "ultrasonic mosquito repellent can be called" thought -driven mosquito "and can only succeed when there is no mosquito." Dermatologist Li Xiangzi said that such ultrasonic bracelets may have no actual mosquito repellent effect. He has taken a lot of patients who use such products to be bitten by mosquito.

Citizen Ms. Liang is worried that the use of irregular mosquito repellent products will affect her health, and she has been looking for more environmentally friendly mosquitoes. Once visiting the flower market, she saw that a store launched the "mosquito repellent plant", and she bought a pot with a mentality of trying it. "The store introduced that plants such as mosquito repellent, nightlays, flying plums, lemongrass, lavender, mint and other plants have the effects of mosquito repellent."

But Ms. Liang admitted that after she planted mosquito repellent plants in the balcony, there were still mosquitoes in the living room and room. "And some people may be allergic, which is particularly sensitive to the smell, and is not suitable for planting these plants at home." Ms. Liang also said that planting green plants on the balcony also increases the risk of breeding mosquitoes, especially the stagnant water on the bottom of the pot. Too much, it is easy to become a breeding ground for mosquitoes. She told reporters that at present, it is still the most reliable to install the screen window. Close the screen window door before the evening to better prevent mosquitoes from entering the house at night.

The reporter learned that the application of aromatherapy plants in the prevention and control of mosquito repellent and mosquito extinguishing mosquitoes has been used, and the ancients used mosquito repellent to repel mosquitoes. The reason why aromatic plants can repel mosquitoes are mainly because they have aromatic smells, can interfere with mosquito perception of people, and mosquitoes do not like these odors. Dr. Li Xiangzi also said that the alcohol, lemongol, citizens and other substances secreted by mosquito repellent plants do have a certain avoidance effect on insects, but these substances are usually not released casually, only by mechanical friction or insects. A large amount of physical damage such as feeding will be released in large quantities. "Therefore, it is not enough to rely on the smell concentration emitted by the leaves." He reminded that mosquito repellent plants can be placed indoors for a long time, which may also cause some harm to the human body. If you want to place mosquito repellent plants in the room, try to choose a ventilated balcony or window.

In addition, some citizens will learn self -made mosquito repellent products online for their dedication to the concept of "pure natural". For example, there are many netizens on social platforms that "mosquitoes do not like the taste of vitamin B1. After mixing vitamin B1 with clear water, spraying it on the body can drive away the annoying mosquitoes."

Dr. Li Xiangzi said that this statement was unreliable. "The taste of vitamin B1 may make people feel nauseous, but it will not affect mosquitoes." Li Xiangzi said that the molecular structure of vitamin B1 is very unstable, afraid of heat and seeing light easily, dissolved in water spraying in water It is unreliable itself. (Reporter Zhou Weiliang)

(Source: Xinhua News Agency)

[Edit: Yu Lina]

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