防治枣步曲方法的改进以往防治枣步曲绑塑料布、涂药环的部位都在树干基部。我们的实践证明以树干中部（距地面４０－７０ｃｍ处）为好。好处有四点：一是树干较细，可节省塑料布；二是操作较方便，每人每天可绑２００株大树，而在基部只能绑１２０株；三是可消耗雌成虫体... Prevention and treatment of jujube step method improvement In the past, the control of jujube song tied plastic sheeting, coating ring parts are in the trunk base. Our practice has proved that the middle of the trunk (40-70cm above the ground) is better. There are four advantages: First, the trunk is thin, plastic sheeting can be saved; Second, the operation is more convenient, each can be tied to 200 trees a day, while only 120 at the base tied; .