There are different categories of Anti-bird nets (like vineyard bird netting, and vineyard side netting), according to product usage and durability. You can also classify them through properties like mesh size and material. A bird netting will have all these properties written about it. For example, one of our bird nettings has the features below. · 15x15mm Knitted bird netting 35g/m2 ·        15% shading rate ·        White HDPE 0.3% Ciba 783 UV inhibitor ·        5 years UV warranty The cost of bird netting ranges from US$2500 to US$6000 per hectare (excluding costs of structural frame), which is equivalent to approximately US$0.25~US$0.60 per square meter. Even when you consider the average cost per fruit tree, such as a fruit of medium width, 10 foot-high, that is not expensive. This makes bird nets a very cost-effective option for protecting an orchard from birds. When you also consider the life span of a bird netting, which is 5-10 years manufacturer warranty, the average annual use cost goes even lower.