[Jacob-list] Ivermectin and synthetic pyrethroids

[Kathryn Shirley]

I use the same treatment:  short hair cut (at least two inches beyond the
strike zone), peroxide, pick out the maggots (tweezers help with the small
fast ones--ewww).  Job is really gross and has left me retching more than
once.  Fortunately just three cases in 18 years.

I do also spray the skin when I'm done picking with tame iodine
(non-stinging kind) to help dry up the area.  Usually the area is damp from
the maggots  and the iodine helps to dry it out quicker.

Nolvasan would probably do the same thing (teat dip, not surgical scrub).

Kate Shirley
Humbug Farm
----- Original Message -----
From: "Betty Berlenbach" <lambfarm at sover.net>
To: "gordon johnston" <gordon at westergladstone.fsnet.co.uk>;
<jacob-list at jacobsheep.com>
Sent: Monday, April 17, 2006 11:18 AM
Subject: Re: [Jacob-list] Ivermectin and synthetic pyrethroids


> Actually, with flystrike, I just catch the sheep, put on rubber gloves,
give
> the sheep a haircut, spill hydrogen peroxide on the area in question and
> pick out the maggots as they come to the surface.  It works...time
> consuming, perhaps, but it is pretty easy to get them all, especially if
you
> find it quickly, and I spend time during flystrike season each day looking
> at the sheep, for telltale signs. (And I MEAN tellTAIL signs: I have found
> that one of the advantages to keeping tails on is that if they should get
> flystrike, which has only happened here three times, once without tail,
two
> with...the tail gets a ring around it of dirty fleece, below where you'd
> crop it, were it cropped, and each time, it was flystrike caught early.
> ----- Original Message -----
> From: "gordon johnston" <gordon at westergladstone.fsnet.co.uk>
> To: <jacob-list at jacobsheep.com>
> Sent: Monday, April 17, 2006 9:09 AM
> Subject: [Jacob-list] Ivermectin and synthetic pyrethroids
>
>
> > Ivermectin is lethal to invertebrates. It is an organophosphate and was
I
> > believe developed in Israel as a by-product of nerve gas research. If
you
> > give it to your animals, the dung is toxic to ground-dwelling beetles
and
> > earthworms. Its use is not permitted in organic production here in the
UK.
> > My neighbours use ivermectin to worm their cattle and sheep. They have
> > very
> > few earthworms and no moles. We do not use it and have millions of
> > earthworms and lots of moles, 21 trapped in the last week.
> > Pyrethroids are based on the insecticidal chemicals produced by
pyrethrum
> > daisies, but are all produced synthetically in chemical plants. They do
> > not
> > have the same dreadful effects on humans that ivermectin can have but
they
> > are phenomenally toxic to aquatic life. Disposal of pyrethroid-based
dips
> > is
> > problematical.
> > There is no easy answer to controlling flies and lice on sheep. Each
will
> > have adverse effects on the environment. I would suggest Vetrazine
> > (approved
> > for use in organic systems) which prevents maggots developing or Crovect
> > (not approved) which kills maggots on sheep. Either is preferable to
> > watching sheep suffer from flystrike.
> > Gordon in Scotland.
> >
> >
> >
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>
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