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在防治病虫害过程中,如果选药不当、喷施过量、操作失误,很容易使作物发生药害。轻者叶片失绿生长受阻,重者茎枯死亡。因此,应当注意预防,对于已发生药害的作物,要及时采取补救措施。这里谈谈我们站的一些作法。一、预防措施1.要按照农药说明书,掌握所喷施农药的性质、用途和配制比例。如乐果对刺吸式口器的害虫防治有效;2.4—D类除草剂,使用时要远离双子叶植物。
In the process of prevention and control of pests and diseases, if improper drug selection, spraying over, mistakes in operation, it is easy to crop phytotoxicity. Green leaves chlorosis growth retardation, severe stem dead blight. Therefore, we should pay attention to prevention and take timely remedial measures for the crops that have occurred phytotoxicity. Here to talk about some of our practices. First, preventive measures 1. In accordance with pesticide instructions, to grasp the nature of pesticides sprayed, use and preparation ratio. Such as dimethoate on piercing mouthparts pest control effective; 2.4-D class herbicides, when used away from dicotyledon.