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防治果树病虫时,如使用农药不当,很易发生药害.轻则造成叶片黄化、白化、焦枯、脱落.降低树势,重则导致整树死亡。实践证明,采取下列急救措施.可有效地减轻药害,把损失减小到最低限度.(1)水洗去药因用药浓度过大、施药量过多而引起的药害,应立即冲洗受害植株.洗净枝叶表面的药液,降低树体内农药的含量.内吸型农药(如呋喃丹颗粒剂)和除草剂等用于土壤处理而造成药害时.应采取排灌洗药的措施.即对土壤进行大水浸灌.再灌1～2
Prevention and control of fruit pests, such as improper use of pesticides, it is easy to produce phytotoxicity, ranging from the leaves cause yellowing, albino, scorch, fall off. Practice has proved that the following first aid measures can be effective in reducing injury, the loss is reduced to a minimum. (1) wash to wash due to drug concentration is too large, the amount of drug overdose caused by injury, should immediately wash the victims Plants Wash the liquid on the surface of branches and leaves to reduce the content of pesticides in the tree Internal absorption type pesticides (such as carbofuran granules) and herbicides used in soil treatment resulting in injury, should take the measures of irrigation and drainage That is, the soil is flooded with water and recharged 1 ~ 2