Cooling Plastic Film Vegetable 10m Multi Span Greenhouse

Large 10m Span Multi-Span Plastic Commercial vegetable Greenhouse

Greenhouse bird repellent method

Most birds have the ability to distinguish colors, and their visible color range is wider than that of the human eye. In other words, they not only see colors more clearly, but they can also see colors that the human eye cannot distinguish. Many birds are afraid of bright colors, especially red and blue-red colors. You can tie some colorful ribbons and flags on the roof of the greenhouse. Birds first saw the colorful stripes dancing in the wind, and felt that they would be dangerous. They would be frightened temporarily and would not dare to fly down. However, the birds are still very shrewd. Over time, they will discover the regularity of these color bars. After a few trials and find that there is no danger, they will ignore them. Therefore, these color bars can only scare the "newbies" who have just arrived, but cannot scare the "veterans". And not all birds are scared when they see these color bars.

Birds are afraid of flashing light, so they can hang some CDs on the roof of the greenhouse to scare away the birds through the reflection of light. There is also a special wind-powered reflective bird repeller, which is an instrument that uses wind to make the reflector continuously rotate to produce reflections, which are used to interfere with the vision of the birds and scare away the birds. However, this kind of instrument is troublesome to install, and the range of a single bird repellent is not large enough.

3. Use sound to repel birds

Birds are timid and will be flew by the slightest noise. Farmers first used the sound of bumping cans to scare away the birds. But the sound was monotonous, and over time, the birds would get used to it and were not afraid. A player can be installed at the side of the greenhouse to specifically play sounds that scare birds, such as the sound of their natural enemy eagle, and the sound of ligers and wolf dogs, or the screams of their kind, or the sound of firecrackers and guns. class. If there is no place to download these sounds, you can directly purchase a digital imitating sound bird repeller. There can be as many as dozens or hundreds of sounds in it, which are played in turn, and the effect is quite good.

4. Use nets to repel birds

Set up a layer of nets above the greenhouse. Note that it is a net for repelling birds, not a net for catching birds!

So choose a bird-proof net with a thicker wire that will not trap the birds, as long as it can stop them from flying to the roof of the shed to cause damage.

5. Use smell to repel birds

Birds are very sensitive to smells, especially chemical smells. It is said that when the detection level was lagging behind, birds were used to check for chemical leakage in the workshop. Now there is a special bird repellent, which can release a special fragrance that affects the respiratory system and nervous system of birds, which can not harm the birds, but also drive them away.

6. Use the frequency of sound waves to repel birds

There is also a professional ultrasonic bird repellent, which uses ultrasonic waves to stimulate the nervous system of the bird so that the bird does not dare to approach. There are also some, with red and blue flashing lights, using the colors that the birds are afraid of, to achieve a double anti-bird effect. There is also a three-in-one, that is, you can play sounds that scare birds.

However, the scope of this instrument to repel birds is limited. Moreover, the role is mixed. Some people say it is useful, some people say it is noise.