A, timely clean up the balcony, windowsill water, keep the indoor environment clean. Because mosquitoes love water, some unused flowerpots, jars and wine bottles placed on family balconies, windowsills and terraces are conducive to the breeding of mosquitoes, so they must be cleaned up in time. Second, pay attention to the mosquito prevention of household sewers and balcony rainwater pipes. Often clean these places with clean water, cover them with gauze when not using the sewer, or hang a cork or cotton yarn soaked with pesticides at the sewer mouth and the rainwater pipe mouth of the balcony. Third, change water for domestic aquatic plants regularly. For mosquito repellent: first, use physical methods to kill mosquitoes as much as possible, and be sure to install screen windows and screen doors at the same time when decorating the home. Mosquito catching lamp is effective for mosquitoes that move at night, and can be used on balconies, terraces and indoors. Second, pay attention to indoor ventilation when using mosquito-repellent incense, and at the same time pay attention to buying regular mosquito-repellent incense with complete signs. Third, use pesticides and sprays correctly. Spray is in danger of being inhaled, so pay attention to ventilation when using it. Fourth, pay attention to the safety of electricity when using mosquito killing products such as electric mosquito tablets. 5. Decorate the home with some flowers and plants with "mosquito repellent effect", which has a certain mosquito repellent effect. Plants that can repel mosquitoes include clove, calendula, jasmine, mint and so on. You can eat more fragrant rapeseed, which has some smells that mosquitoes hate, such as bay leaves, lemon grass oil, citronella, garlic and geraniol. Mosquitoes like to bite type A, followed by type AB. O and b bite less. Different kinds of mosquitoes have different tastes. For example, Anopheles sinensis, which spreads malaria, likes to suck B blood. From the experimental results, people with type B blood are most vulnerable to Anopheles sinensis attack, followed by type A blood. Aedes aegypti, which spreads yellow fever and dengue fever, likes to bite people with type O blood. Mosquitoes also like to bully women and children. Secondly, mosquitoes also like to bite black clothes. Wearing black clothes attracts mosquitoes the most! ! ! Wearing dark twill jeans is easy to bite. For mosquitoes, carbon dioxide and sweat emitted by human body are effective information to guide them to find prey. It mainly relies on the olfactory organs, that is, a pair of horns on the head, to perceive the "information" of the human body in the air and follow it. Don't underestimate a mosquito only one centimeter long. It has a strong search ability, and the farthest search distance can reach 60 kilometers. In this range, the stronger the "signal", the easier it is to be locked by them. People who emit more carbon dioxide, because of the relatively high concentration of carbon dioxide around them, present a clearer "image" in the mosquito's field of vision, which is convenient for mosquitoes to track directionally. Therefore, in a group, people with large lung capacity, fat people and people with heavy breathing are more likely to be bitten by mosquitoes, and pregnant women exhale more carbon dioxide because of their active metabolism. Sweat emitted by human body volatilizes in the air, which can also send a "signal" to mosquitoes. Usually, people who sweat a lot and sweat easily are more vulnerable to mosquito attacks, which is enough to explain why we often find several big "red envelopes" on our bodies after exercise. Mosquitoes love to bite people with rough skin and large pores, usually because such people often have developed sweat glands or secrete more secretions such as sweat. So sometimes men attract mosquitoes more than women, and young people attract mosquitoes more than old people. Some studies have found that women especially "recruit" mosquitoes during menstruation or pregnancy, which may be related to the high level of sex hormone secretion, so that "mosquitoes like to bite sexy people." Professor Xu pointed out that this is actually because women's endocrine changes at the above stage, their metabolism is accelerated, and their perspiration is often more, which has a stronger stimulating and guiding effect on mosquitoes. By the same token, teenagers in their developmental stages are also easy to "recruit" mosquitoes. One data shows that the breath exhaled by pregnant women before labor is 2 1% larger than that of non-pregnant women, and the exhaled moist gas and carbon dioxide are quite attractive to mosquitoes. In addition, compared with non-pregnant women, the abdominal temperature of pregnant women is 0.7 times higher, and the higher the body temperature, the more volatile substances on the skin surface. Improper dressing will attract mosquitoes. It turns out that mosquitoes are afraid of light but don't like it too dark. They like to suck blood in low light. During the day, people wear dark clothes, and the reflected light is dark, just to their liking. In addition, mosquitoes like to bite people with higher body temperature, and dark clothes have strong heat absorption ability. Several factors are superimposed together, which naturally makes the mosquito attraction index of dark clothes soar. People often think that black clothes are the most attractive to mosquitoes, but according to Professor Xu, wearing dark twill jeans is actually the most vulnerable to mosquito bites. Perfume hair cream causes mosquitoes to wear too much and be bitten by mosquitoes. Using cosmetics with floral fragrance, such as perfume, hair gel, face cream and fire cream, will increase the chance of being bitten by mosquitoes. Some people think that most cosmetics contain chemicals that can attract mosquitoes. Therefore, women who wear makeup are more sought after by mosquitoes than women who face the sky. Don't use soap and shower gel with strong fragrance when bathing in summer. However, not all scents attract mosquitoes, such as citronella oil and eucalyptus oil, but they are all good mosquito repellent. Don't share mosquito repellent with sunscreen. For people who are easily bitten by mosquitoes, mosquito repellent is like a lifesaver. But how can we maximize the efficacy of mosquito repellent? Professor Xu reminded that mosquito repellent should not be mixed with perfume such as sunscreen. Because the main components of mosquito repellent water are mosquito repellent amine and alcohol, the mixed use will reduce or even completely offset the mosquito repellent effect. Some women are afraid of being bitten by mosquitoes and sunburn, so they simply apply mosquito repellent and sunscreen before going out every day. This not only reduces the mosquito repellent effect, but also makes the ingredients more prone to chemical reactions in hot weather, causing skin inflammation.