Install hail nets, preferably in March. It is very simple to install. Just pull up the anti-hail net and lay it flat on the top of the grape trellis, 5~10 cm from the top of the grape plant. The connecting part of the two nets is tied or sewn with nylon rope, and the same is true at the corners. Sturdy is fine, but it is important to keep the net tighter so that it can most effectively resist hailstorms.

　　Take a vineyard setup as an example:

　　There are three main materials for setting up Anti Hail Nets in vineyards, namely uprights, net frames, and hail nets.

　　1. Selection of anti-hail net columns

　　The column is the skeleton that supports the net frame and the hail net, and plays a supporting role. It must have the characteristics of sturdiness and durability, and can be used for more than 15 years. Three kinds of materials are available: wooden poles, cement pillars and stone pillars.

　　2. Selection of anti-hail net frame and frame pad

　　The mesh frame requires durable and extensible materials to erect, and is erected with Ф12 steel wire or Ф8-10 iron wire in production.

　　3. Selection of anti-hail net material

　　Requirements for hail net materials: ①Light weight, easy to erect; ②Durable; ③Low price; ④Little impact on light.