At 03:39 PM 06/07/2011, you wrote:
> > On 05/07/2011 16:26, doug metzler wrote:
> > > I did a little research on this when rats moved in to my crawl space
> > > and all the tests I found said that while rats are sensitive to
> > > ultrasonic and may react at first eventually they get used to the
> > > noise and thus the effectiveness is null.
> >
> > That's what I would expect. Actually some of the "repellers" on sale
> > here leave out the Ultrasound (no doubt it's expensive) and just claim
> > "electromagnetic". I don't believe that. Esp. since replacing gnawed
> > mains cable when fuses went. No body.
> >
> > Dogs and Guinea pigs really don't like it, but familiarity and then
> > food
> > wins.
> >
> > *Rats*
> > Attempted drowning only works it they are in tunnels. They swim well.
> >
> > Knocking on head is very difficult. The rats and mice won't wait for
> > the
> > blow,
> >
> > Poison sometimes works. but how well is hard to say.
> >
>
>I believe one of the best rat 'poisons' is sherbet - the sweet lolly=20
>powder stuff you had as kids. Rats apparently love it, eat it in=20
>grand style, then find their mouth is rather dry so go looking for=20
>water. What happens when sherbet and water mix? The same happens in=20
>the rats stomach, effectively bloating them and causing rupture of=20
>various sections of the body, which kills them.

Evidently sherbet (UK) is quite different from the sorbet-like (sort=20
of ice-cream light) sherbet I know.

http://en.wikipedia.org/wiki/Sherbet_%28powder%29

http://en.wikipedia.org/wiki/Sorbet#American_terminology

I don't think I've ever seen it or "soda powder".

>Haven't had occasion to try it myself, the technique came from a=20
>'back to the land' magazine.


Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the rewar=
d"
speff@interlog.com             Info for manufacturers: http://www.trexon.co=
m
Embedded software/hardware/analog  Info for designers:  http://www.speff.co=
m



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