在稻田中按规定的剂量使用溴氰菊酯农药治虫，对稻田养鱼和邻近鱼塘无危害影响；对虾类有较大的危害性。

If deltamethrin be used with prescript dose in paddyfield, it will have no harmful effect on fish breeding in paddy field and nearby fish pond, but will be more harmful to shrimp.

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作者研究了杀灭菊酯、二氯苯醚菊酯、氯氰菊酯和溴氰菊酯在青菜、小白菜、豇豆三种蔬菜中的残留降解情况，四种农药的降解半衰期为1.4～3.1天；

Authors researched the degradation of fenvalerate, permethrin, cypermethrin and deltamethrin in 3 vegetables. The half-life of the degradation of 4 Pyrethroids -1.4~3.1 days.

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