Bob & Liz wrote:

> Hello All,
> Interesting thread.
> A patent has been applied for a ultrasound instrument which kills mosquito
> larva. Hope is it will replace pesticides and help in control of West Nile
> Virus. . A young student named Michael discovered the ultrasound killed the
> misquito larva

I saw the TV spot also - Of course the ultrasound killed mosq. larvae at the
distances and power used - what they didn't mention is that it has to be quite
close. Hardly the cure for the New Jersey swamps. A household blender would also
kill mosq. larvae.