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[目的]为了考察多杀霉素与甲维盐混配对防治二化螟是否有增效作用。田间采用茎叶喷雾方式,测试10%多杀霉素.甲维盐水分散粒剂对水稻二化螟的防治效果。[结果]单独使用5%多杀霉素水分散粒剂和5%甲维盐水分散粒剂对水稻的保苗效果和杀虫效果均较低,而10%多杀霉素.甲维盐水分散粒剂随着其用量的增加对水稻的保苗效果和杀虫效果增加,与2个单剂的作用效果存在显著差异。[结论]多杀霉素和甲维盐混配有明显的增效作用。
[Objective] The purpose of this study was to investigate whether synergistic effect of spinosad and carbaryl mixed on the control of Chilo suppressalis. Spraying stems and leaves in the field to test 10% spinosad.Prevention and treatment of Chilo suppressalis by using Formosa Saltwater Dispersible Granules. [Result] The results showed that the preservative effect and insecticidal effect of 5% spinosad dispersible granules and 5% formazan salt dispersible granules on rice were lower than those of 10% spinosad. With the increase of its dosage, the effect of preserving seedling and insecticidal effect on rice increased, which was significantly different from that of two single agents. [Conclusion] spinosad and carbaryl mixed with obvious synergistic effect.