1, Qilixiang
Qilixiang is an evergreen shrub. The mosquito repellent principle of this mosquito repellent is the pungent and sweet fragrance emitted by its leaves, which has a good effect on mosquito repellent. Qilixiang looks like an umbrella house. The branches are close, the leaves are small, the flowers are white, and it is also ornamental.
2. Cordyceps sinensis
Cordyceps sinensis is also a well-known mosquito repellent, which is a kind of compositae herb. There are more than 100 flower heads on each plant, and there is mucus around each flower head, which is its main tool to repel mosquitoes. Mosquitoes will be stuck by mucus when they land on it, and then the dead bodies of insects will be slowly digested into nutrients.
3. chasing flies and plums
Feifeimei's mosquito repellent principle is similar to that of Qilixiang. Its branches and flowers will release a gas. Mosquitoes and flies are very sensitive to this gas, so the mosquito repellent effect is very good, and there is no harm to the human body. Fly-chasing plum is also called "seven flowers to repel mosquitoes" because its color is very bright in many cases. There are red, yellow, white and other colors, and their colors will gradually change with the flowering period, which is very beautiful.
4, cordate telosma
The strong smell released by cordate telosma is the smell that mosquitoes are afraid of, so it has a good mosquito repellent effect when placed indoors. Although cordate telosma has a strong aroma, some data show that people will feel uncomfortable if they smell it for a long time, so it is best to put it outdoors during the day.
5, geranium geranium
At present, all the mosquito repellent grasses on the market are transgenic geraniums. Through transgenic technology, citronellal gene is implanted into mosquito repellent grass to release citronellal substances, which has the functions of refreshing air, purifying indoor air and repelling mosquitoes.