三种增效剂对棉铃虫增效作用

Joint Action of 3 Synergists with 3 Insecticides in Heliothis armigera Field Population

用３个不同地区的棉铃虫田间种群分别测定了３种增效剂对３种杀虫剂的增效作用。结果表明ＰＢ对氯氟氰菊酯，ＤＥＦ对辛硫磷，ＰＢ和ＴＰＰ对灭多威增效较好，而且棉铃虫的抗性水平越高，增效剂的增效作用越突出。

Synergism of three synergists(PB,DEF,TPP)to cyhalothrin,phoxim,methomyl were measured in three Heliothis armigera field population by topical application method.Compared with DEF and TPP,PB has higher synergism to cyhalothrin.Synergism of DEF to phoxim is better than that of PB and TPP.PB and TPP are better synergism than DEF to methomyl.Higher resistance level to insecticide expressed in the pest,higher synergism of synergist can observed.