What do flies fear most or what is the smell?

Some plants have special fragrance or smell, which is harmless to people, while mosquitoes, cockroaches, flies and other pests will avoid it when they smell it. Some special scents or smells can also inhibit or kill bacteria and viruses. These factories include:

Tuberose, pyrethrum, wild chrysanthemum, mirabilis jalapa, lemon, crape myrtle, jasmine, orchid, clove, atractylodes rhizome, popcorn, dandelion, mint, etc.

1. cordate telosma

Also known as the night fragrant tree, it is native to tropical America. The leaves are heart-shaped with hairy edges. Every summer and autumn, clusters of yellow-green bell-shaped flowers will bloom in the axils of leaves. When the leaves are in the treetops in the month, they will give off bursts of fragrance, which makes mosquitoes afraid. It is a good mosquito repellent.

The fragrance of cordate telosma is very strong. For people with high blood pressure and heart disease, smelling this strong fragrance for a long time may cause respiratory discomfort, so don't put it indoors during flowering.

2.lavender

A small blue-purple flower, native to the Mediterranean, has a grain-like pattern and usually blooms in June. Lavender itself has insecticidal effect, so people make it into sachets and put it in the closet, and some put it in the bedroom to repel mosquitoes.

common nepenthes

Insect-eating plants, mosquito traps Can be used as medicine, and has certain curative effect on hepatitis, stomachache, hypertension and common cold.

4.geranium

That is, what teacher gaigoo called "African geranium".

5. Qilixiang

Small evergreen shrub with umbrella outside, small shiny leaves, dense white flowers and red fruits. Touching its leaves will feel very sweet and fragrant, and the mosquito repellent effect is very good.

6. Cordyceps sinensis

Compositae herb with small yellow flowers, one plant can have hundreds of flower heads, and there is mucus around each flower head. As long as there is a small mosquito on it, it will be stuck, and the insect's body will be slowly digested as its growth nutrition. If dust falls on it, it will be digested without a trace in a few days. Put a pot of Cordyceps at home to catch insects and vacuum.

7.chasing flies and plums

Branches, leaves and flowers give off a sensitive smell of mosquitoes and flies, which has a strong mosquito repellent effect and is harmless to human body.

In addition to these plants, there are many tips in life that can help you stay away from flies. 1. vinegar flooding spray some pure vinegar indoors and flies will stay away. 2. The orange peel method will ignite the dried orange peel indoors, which can not only expel flies, but also eliminate indoor odor. 3. Put chopped onions, onions, garlic, etc. in the onion fly repellent method. In the kitchen. These foods have a strong pungent smell and can drive away flies. 4. tomatoes drive away flies. Putting a pot of tomatoes indoors can drive away flies. 5. Using the residual tea leaves to drive away flies can not only drive away mosquitoes and flies, but also dry the residual tea leaves and burn them in the toilet or beside the gutter to remove the odor.

If you can't get rid of them, you might as well have a big fight with them. I'll give you these tips: first, the most primitive: pat a dead fly with a fly. The fly killing effect of this method depends largely on the operator's skill. Advantages: low cost. Disadvantages: the fly killing effect depends largely on the fly killing technology; Will produce pollution. Recently, electronic fly swatter appeared, which overcame the shortcomings of pollution of traditional fly swatter, but the cost of fly swatter increased. Second, the fastest: pesticides kill flies. At present, there are two kinds of fly killers on the market: stomach poison and contact poison. ① stomach toxicity. It enters the digestive system through the mouth of worms and plays a toxic role, such as enemies. (2) contact killer. After contact with epidermis or appendages, it seeps into the insect body, or corrodes the wax layer of the insect body, or blocks the valve to kill pests, such as pyrethroids and mineral oil emulsions. Killing flies will pollute the environment at the same time, especially stomach medicine, which is not suitable for food factories with food production and pharmaceutical factories with drug production. Third, all-weather ultraviolet trapping and killing. Flies belong to phototactic animals and are particularly sensitive to ultraviolet rays. Using this feature, humans invented the ultraviolet light trap, and the power grid outside the ultraviolet light can make flies electrocute and die. Advantages: no pollution; You can kill flies day and night. Disadvantages: it will produce sparks and is not suitable for flammable and explosive places. Fourth, the safest: put sticky fly paper. When a fly accidentally hits or falls and stops, it gets stuck and can't move. This method is only suitable for places where there are many flies, and there is no need to strictly kill flies. Fifth, everything comes to nothing-"strong walls and clear fields." The longest life span of flies is 15 days. If they don't get food for a long time, they will die soon. Therefore, properly preserving all food and disposing of garbage is a fatal blow to flies. Sixth, the trump card-wet rags kill flies. After throwing the rag with water, the kinetic energy is large, so the range is long, the coverage area of the rag is large, and the hit rate is increased. After a period of practice, the rag thrown by the practitioner will become a fly's nightmare.