The role of anti-bird net: 1. Prevent birds from damaging fruits. By covering the bird-proof net over the orchard, an artificial isolation barrier is formed, so that the birds cannot fly into the orchard, which can basically control the damage of the birds and the fruits that are about to ripen, and the rate of good fruit in the orchard is significantly improved. 2. Effectively resist the invasion of hail. After the bird-proof net is installed in the orchard, it can effectively resist the direct attack of hail on the fruit, reduce the risk of natural disasters, and provide a solid technical guarantee for the production of green and high-quality fruit. 3. It has the functions of light transmission and moderate shading. The anti-bird net has high light transmittance, which basically does not affect the photosynthesis of the leaves; in the hot summer, the moderate shading effect of the anti-bird net can create a suitable environmental condition for the growth of fruit trees.