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在众多的落叶果树种类中,核果类果树对于多种农药是比较敏感的,其中尤以桃、李为最。铜素化合物对于桃叶,氟乙酰胺对于桃果实,能引起严重药害,导致树叶或果实大量脱落。因此,在桃树上进行病虫害的化学防治,首要的问题是了解该种农药对于桃树的安全性如何。本试验的目的是,通过试验初步明确我市目前桃树生产上用于防治病、虫,螨的常用农药及部份正在试验、示范,将来有可能大规模应用农药的安全性程度及其问题,为生产上提供可靠依据。一、供试桃树本试验在北京海淀区西北旺福利园艺场
Among the many types of deciduous fruit trees, stone fruit trees are sensitive to a variety of pesticides, especially peaches and plums. Copper compounds for peach leaf, fluoroacetamide peach fruit, can cause serious injury, leading to a large number of leaves or fruit loss. Therefore, the chemical pest control in peaches and trees, the first issue is to understand the safety of pests for the pesticide. The purpose of this experiment is to initially determine the safety of pesticides used in large-scale pesticide applications and their problems by testing and demonstrating some of the common pesticides used in pest and pest control in our city. , To provide a reliable basis for production. First, the test peach The test in the northwest of Beijing Haidian Welfare Horticultural Field