Thanks Paolo, didn't see your message there, good to have some more info. Sean
SL Otago, New Zealand On 8 July 2011 20:58, <nanon...@mediagala.com> wrote: > ** > * > >James Cameron wrote: > > Is there any evidence base for repelling mosquitos using low frequency > sound? > > ---------------------------------------------------------------------------------- > * > > > > > There is an Article that says that the experiments done with low and high > frecuencies failed: > > http://bugjammer.com/reports/coro/index.htm > > *"Another type of electronic mosquito repeller is claimed to "mimic > perfectly the sound of dragon-flies, natural enemies of mosquitoes". In this > case Schreiber et al (1991) measured that the frequency emitted was 30 Hz, > much lower than the minimum frequency reported for the mosquito wing beat > (Clements 1999). Schreiber et al (1991) with field and laboratory tests in > Florida and Curtis (1994) with laboratory trials in London, England > alsoreport negative results of this device in > eliciting a repellent effect on mosquito females. " > > > *Paolo Benini > Montevideo* > * >
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