Metofluthrin liquid vaporizer

Table 5 Knockdown efficacy of Metofluthrin liquid vaporizer (60 days use formulation) against Culex pipiens pallens (laboratory strain) large chamber (28 m3) cage method...

Table 7 Knockdown efficacy of Metofluthrin liquid vaporizer against Culex quinquefasciatus (Bogor field strain) by the large chamber free-flying method with 1 h pre-fumigation ...

Fig. 6 Field efficacy of Metofluthrin liquid vaporizers against indoor night biting mosquitoes, evaluated in homes in Indonesia and in Malaysia...

Abstract Metofluthrin (commercial name SumiOne, Eminence ) is a novel pyrethroid insecticide developed by Sumitomo Chemical Co., Ltd. Metofluthrin has extremely high insecticidal activity to various pest insects, especially to mosquitoes. In addition, Metofluthrin has relatively high volatility and low mammalian toxicity. Metofluthrin is therefore suitable for use not only in conventional mosquito control formulations such as coils and liquid vaporizers, but also in a variety of novel devices that do not require heating, such as fan vaporizers and paper and resin emanators. Here we describe the insecticidal activity of Metofluthrin mainly against mosquitoes in various formulations in both laboratory and field trials. 

Fig. 4 Knockdown efficacy of Metofluthrin(=160 mg) fan vaporizer against Culex pipiens pallens (susceptible strain) compared to commercial liquid vaporizer (prallethrin = 600 mg)...

In the treated homes, one liquid vaporizer was switched on and placed on the floor in the living room, approximately 1-1.5 m away from the human bait. Results obtained from the two trial sites indicated that liquid vaporizers containing 0.11 wt % Metofluthrin were slightly inferior to those containing 0.86 wt% prallethrin. However, the percentage of bite reduction provided by 0.17 wt% Metofluthrin was similar to, or better than, that provided by 0.86 wt% prallethrin (Fig. 6). Therefore, the relative efficacy of Metofluthrin in liquid vaporizer formulations is at least five times better than prallethrin. 

Metofluthrin is a newly developed highly effective pyrethroid which has excellent insecticidal activity against mosquitoes. Due to its superior characteristics, Metofluthrin is suitable for use in various types of mosquito control formulation, including mosquito coils and liquid vaporizers. Metofluthrin also has excellent... 

We carried out a detailed investigation into the performance of metofluthrin in mosquito coils and liquid vaporizers, the most commonly used forms of heated mosquito control devices. 

Figure 9. Knockdown efficacy of metofluthrin vaporizer liquid against Culex quinquefasciatus (Bogor, field strain) by large chamber free-flying method, 1-hour pre-fumigation.

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