果实进入成熟期,部分鸟类成群啄食果实,给果农造成严重的经济损失。为此,果农常用增加喷药次数和浓度、用火药枪打等方法来控制鸟害,但收效甚微。我们通过三年试验,用卫生球可有效地防止梨园鸟害。具体方法是在果实采摘前30天左右,将卫生球用单层布包好,每包2～3枚,用细铁丝挂在树冠 Fruit into maturity, some birds pecking fruit, causing serious economic losses to growers. To this end, fruit farmers commonly used to increase the number and concentration of spraying, gunpowder and other methods to control bird damage, but with little success. We passed the three-year trial, with health ball can effectively prevent pear orchard birds. The specific method is 30 days before the fruit picking, the health ball with a single layer of cloth, each bag of 2 to 3, with thin wire hanging in the canopy