解救作物药害四法使用农药防治病虫草害选药不当或盲目混用，剂量过大，操作失误，容易形成药害，补救方法有以下几种：１、水洗法。用净水快速喷洒遭受药害的作物，清洗附着在植株上的残留农药，这样可以缓解药害。２、排灌法。使用除草剂二甲四氯造成药害，可进行大水灌... Rescue crop injury Four methods of pesticides used to control pest insects Improper or blindly mixed drugs, the dose is too large, the operation error, easy to form phytotoxicity, remedial methods are the following: 1, washing method. Quickly spray the crops suffering from phytotoxicity with clean water and clean the residual pesticides attached to the plants to ease the phytotoxicity. 2, irrigation and drainage method. The use of herbicides dimethyl tetrazolium caused phytotoxicity, can carry large irrigation ...