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溴氰菊酯是一种高效、低残留的广谱性杀虫药剂,近年来,我省已广泛应用于各种作物、蔬菜和果树等害虫的防治上,效果好,群众欢迎。然其残留动态怎样?据北京市农科院研究表明:1.溴氰菊酯在苹果结果期使用10—12ppm,共使用1～3次,其残留量低于联合国(FAO/WHO)规定的0.1ppm 的允许标准;因此苹果上使用溴氰菊酯对人食用是安全的。2.溴氰菊酯在苹果上的半衰期为7.9天,降解系数为0.087。3.苹果上使用溴氰菊酯,它主要附着在
Deltamethrin is a kind of broad-spectrum insecticide with high efficiency and low residue. In recent years, our province has been widely used in the prevention and control of various crops, vegetables and fruit trees and other pests, the effect is good, the masses are welcome. However, the residual dynamic how? According to Beijing Academy of Agricultural Sciences research shows: 1. Deltamethrin in apple fruit during the use of 10-12ppm, a total of 1 to 3 times, the residue is lower than the United Nations (FAO / WHO) 0.1ppm permissible standards; Therefore, the use of deltamethrin on apple is safe for human consumption. 2. Deltamethrin in apple half-life of 7.9 days, the degradation coefficient of 0.087.3. Apples use deltamethrin, which is mainly attached to