1, mosquito repellent
Mosquito repellent vanilla, also known as mosquito repellent grass, is a new plant cultivated by transferring the gene that can produce citronellal from citronella to geranium, which emits citronellal under natural conditions to achieve mosquito repellent effect and has lemon fragrance, hence its name. Mosquito repellent grass has beautiful plant shape and fragrant smell, and has the functions of ecological mosquito repellent, air purification, refreshing, antibacterial and disinfection. The higher the temperature, the stronger its fragrance and the better the mosquito repellent effect. It can be cultivated in bonsai, generally it can grow and mature within half a year, and its survival period is very long. If it is well maintained, it can live for more than 10 years. For example, a pot of 20 cm high mosquito repellent grass can effectively repel mosquitoes in a room of 10 square meter, which may be the best mosquito repellent plant.
2, mint
Peppermint contains a special fragrant smell, which makes mosquitoes dizzy. Moreover, mint can not only repel mosquitoes, itch the skin after mosquito bites, etc., but also play an anti-inflammatory and antipruritic role. In addition to the above functions, mint can also be eaten, and raising a tree can kill two birds with one stone.
3. Pyrethrum
Pyrethrum is the raw material of mosquito-repellent incense, but it is mainly used as an agricultural insecticide, and it is also a famous medicinal plant. When the leaves and leaves are dried, they can be made into powder or mosquito-repellent incense, which can eliminate pests and deodorize. The stamens of pyrethrum are rich in an insecticidal active substance called pyrethrin or pyrethrin, which has obvious insecticidal effect. Mosquitoes will be afraid to come back when they smell pyrethrum.
Pyrethrum is well maintained and generally does not grow worms. If individual withered chrysanthemum seedlings are found, they should be uprooted and burned with fire.
4. Nepenthes
Nepenthes is a tropical insect-eating plant, which has complex structure, strange leaves and a unique organ for absorbing nutrients-insect trap, which can prey on insects. The cover of the bottle can secrete fragrance and attract insects. The mouth of the bottle is smooth, insects will be slipped into the bottle, drowned by the liquid secreted by the bottom of the bottle, and the insect body will be decomposed. It is an expert in mosquito catching.
5. Cordyceps sinensis
Cordyceps sinensis is a herbaceous plant in Compositae. One plant can grow many yellow florets, and there is mucus around the flower head of each floret. As long as a small mosquito falls on it, it will be stuck. Moreover, the dead body of the worm will be slowly digested by it as a growth nutrient. In addition to catching mosquitoes, it can also vacuum. If dust sticks to it, it will be digested without a trace after a few days.
In addition to the five mosquito repellent plants specifically introduced above, there are many others, such as marigold, geranium, jasmine, Qilixiang and lavender, which all have insect repellent and mosquito repellent effects.