啶酰菌胺在葡萄及土壤中的残留动态

The Residues Dynamics of Boscalid in Grape and Soil

[目的]为了评价啶酰菌胺在葡萄上的残留动态并制定合理使用方法，在天津、南京两地同时进行了啶酰菌胺在葡萄上的残留动态试验。[结果]啶酰菌胺在葡萄上的半衰期为9．9～12．0d，在土壤中的半衰期为32．7～41．5d；试验条件下，啶酰菌胺在最后1次施药后间隔3、7、14d葡萄中的残留量为0．142-2．445mg／kg。[结论]50％啶酰菌胺WG在葡萄上合理使用方法为：以1000倍液喷雾3次，安全间隔期N7d；啶酰菌胺在葡萄中最高残留限量（MRL值）推荐值为10mg／kg。

[Aims] The research aimed to assess residues dynamics of boscalid in grape and establish guideline for safety application. Field trails for boscalid residue in grape were conducted in Tianjin and Nanjing. [Results] The half-life of degradation for boscalid was 9.9-12.0 d in grape, 32.7-41.5 d in soil. The final residues quantity in grape samples were 0.142-2.445 mg/kg when the last spraying boscalid after 3, 7, 14 days. [Conclusions] The guideline for safety application was sprayed 3 times with 1000 times diluted of boscalid, the preharvest interval was 7 days. The maximum residue limit was recommended 10 mg/kg.