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1. Prevent birds from harming fruits

By covering the bird net above the orchard, an artificial isolation barrier is formed to prevent birds from flying into the orchard, which can basically control the damage of birds to the ripening fruits, and the good fruit rate in the orchard is significantly improved.

2 Effectively resist the attack of hail

After the orchard is installed with bird proof net, it can effectively resist the direct attack of hail on fruits, reduce the risk of natural disasters, and provide a solid technical guarantee for the production of green high-quality fruits.

3. It has the functions of light transmission and moderate shading

The bird net has high light transmittance, which basically does not affect the photosynthesis of leaves; In hot summer, the moderate shading effect of bird net can create a suitable environmental condition for the growth of fruit trees.

Is there any technical consideration on the selection of bird net?

At present, there are many kinds of bird net materials on the market, with different quality and prices. When selecting the bird screen, the color, mesh size and service life of the screen shall be considered.

1 Color of net

The colored bird net can refract red or blue light through sunlight, forcing birds not to approach, which can not only prevent birds from pecking fruit, but also prevent birds from hitting the net, so as to achieve the role of drive and defense. The study found that birds are more alert to red, yellow, blue and other colors, so it is recommended to use yellow bird net in hilly areas, blue or orange bird net in plain areas, and transparent or white screen is not recommended.

2 Mesh and mesh length

There are many specifications of bird proof nets. The size of the mesh in the orchard can be selected according to the type of local birds. For example, small individual birds such as sparrows and wagtails are mainly used, and 2.5-3cm mesh can be selected; Larger individual birds such as magpie and turtle dove are mainly used, and 3.5-4.0cm mesh can be selected; The wire diameter is 0.25mm. The net length can be determined according to the actual size of the orchard. Most wire mesh products on the market are 100~150m long and 25m wide. After installation, the net should cover the entire orchard.

3. Service life of the network

It is better to select the mesh fabric with polyethylene and heald wire as the main raw materials and added with anti-aging, anti ultraviolet and other chemical additives, which is made of drawn wire. This kind of material has the characteristics of high strength, heat resistance, water resistance, corrosion resistance, aging resistance, non-toxic and tasteless. Generally, when the fruits are harvested, the bird screen should be timely removed for collection and kept indoors. Under normal conditions, the service life of the screen can reach about 5 years. Considering the labor cost of loading and unloading the bird screen, it can also be fixed on the shelf surface for a long time, but the service life will be reduced.