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有机氯农药在农副产品中的高残留毒害已引起人们的极大关注,各国竞相选择替代品种,以便淘汰滴滴涕、六六六等农药。在防治桃小方面,日本主要用地亚农颗粒剂进行地面撒施,但需15天撒1次,共3～4次,效果仍不理想。中国果树所等单位1976年以来的试验证明,辛硫磷是用于地面施药防治桃小的有效品种。但目前我国仍然采用地面施药和树冠多次喷药相结合的防治法,不仅施药次数多,用药量大,且防治成本高,也没有达到简化防治措施和减少果园污染的目的。
Organochlorine pesticides in agricultural residues by the high residual poisoning has aroused great concern, all countries are competing to choose alternative species, in order to phase out DDT, BHC and other pesticides. In terms of prevention and control of peach, Japan mainly uses sub-agricultural granules for ground application, but it takes 15 days to sprinkle 1 time, a total of 3 to 4 times, the effect is still not satisfactory. Tests conducted by Chinese fruit trees and other units since 1976 have proved that phoxim is an effective variety for controlling small peach trees on the ground. However, at present, the prevention and cure method that the combination of ground spraying and canopy spraying is still adopted in our country. Not only the number of spraying, the dosage is large, but also the cost of prevention and cure is high, and the purpose of simplifying prevention and control measures and reducing orchard pollution is not achieved.