What flowers can repel mosquitoes? Feed them well.

As the weather gets warmer, plants that can repel mosquitoes have become the focus of attention. Mosquito net vanilla is such a plant. It is an aromatic geraniaceae plant, its genetic structure has been changed, and it has only been introduced from Australia in recent years. Plants are drought-tolerant, can grow and mature within half a year, and can survive if properly maintained 10 year? 15 years, and its branches and leaves can be changed at will, which has high ornamental value. Mosquito net vanilla gives off a fresh and elegant lemon fragrance, which has a good mosquito repellent effect indoors, but it has no toxic side effects on human body. The higher the temperature, the more fragrance it emits, and the better the mosquito repellent effect. According to the test, a pot of mosquito net vanilla with a crown width of more than 30 cm can drive away mosquitoes in a room with an area of more than 10 square meter. In addition, a plant called pyrethrum contains pyrethrins, which can also effectively repel mosquitoes.

In addition, wormwood leaves, cordate telosma and jasmine can repel mosquitoes! But don't put cordate telosma indoors! You can put it on the balcony!

New mosquito repellent tree

A new mosquito repellent tree, Rutaceae deciduous tree, is a new species of mosquito repellent tree discovered and introduced in recent years. It uses citronellal, which is unique to leaf surface, to diffuse into the air through high-temperature evaporation to achieve mosquito repellent effect.

First of all, it has the following characteristics:

1. Ecological mosquito repellent: The new mosquito repellent tree is rich in a variety of aromatic natural essential oils, such as citronellal and citronellol, which have mosquito repellent effect. When mosquitoes smell this smell, they will be paralyzed and lose the function of biting. The higher the temperature, the stronger the smell and the better the mosquito repellent effect.

2. Indoor mosquito repellent: In summer evening, pick the branches and leaves of mosquito repellent trees in the scenic spot and smoke them indoors once. 10 No mosquitoes for half a day.

3. beautify the environment: the landscape mosquito repellent tree is 3-5 meters high, with straight trunk, lush foliage, fast growth and extensive management. It can be planted in front and behind houses, courtyards, parks, streets and roadsides, which can not only repel mosquitoes, but also achieve the effect of greening and beautifying.

Second, the morphological characteristics

Shrub or small tree, plant height 3-5 meters, green shoots, reddish brown old branches, pubescent, with obvious lenticels. Leaves opposite, odd pinnate compound leaves. Leaflets 5-9, elliptic, tapering at the top, entire with obtuse serrations. Thymus cymose, terminal.

Third, planting techniques:

It can be planted from defoliation in winter to germination in early spring. Dig a pit where it needs to be planted, the width and depth of the pit are 80 cm, and apply about 20 kg of decomposed compost or soil miscellaneous fertilizer, and mix it evenly with the subsoil as base fertilizer. When planting seedlings, they should be planted correctly and firmly, and filled with soil for compaction. Pour a root of water thoroughly.

Fourth, reproduction.

Because the seeds of new mosquito repellent trees are undeveloped and cannot be used as seeds, they are rarely propagated with seeds. Instead, it adopts the asexual reproduction method of cutting roots. In late February, select strong mother plants over 4 years old, dig lateral roots with a diameter of more than 0.5 cm, cut into root segments with a length of about 15 cm for cutting, flatten the upper end and cut the lower end into inclined planes, and cut according to the row spacing of 20 cm and the plant spacing of 10 cm. After insertion, water is poured and covered with plastic arch shed to increase the temperature and keep moisture. After the cuttings take root and sprout, remove the arch shed, manage the seedbed, cultivate for one year, and plant in the nursery.