On the Effect of Synthetic Synergists upon the Knockdown Speed of Pyrethroids against Larvae of the Common House Mosquito, Culex pipiens pallens Coquillett

Abstract

The effect of seven synthetic synergists upon the knockdown speed of four pyrethroids against larvae of the common house mosquito, Culex pipiens pallens Coquillett was evaluated with the bioassay by means of petri dish method previously proposed by the author. The results indicated that six synergists studied, except MGK-F5026, decrease the knockdown speed of pyrethrin, allethrin, barthrin and dimethrin against mosquito larvae.