[ellisr]

I have had 7 sheep with fly strike even after precautionary treatment, this year has been bad according to my local farmer. My friend who has a lot of sheep has advised that I use Coopers spot on, so I have and no more strike since (touch wood and all that)

[VSS]

Its true that these fly products do protect sheep from fly strike but the are not a silver bullet and no reason not to keep a close eye on your stock. You should still clip any dirty backends even if they have been treated.

[cairnhill]

Think Coopers Spot On is a treatment for established flystrike but isn't a preventative like Click or Crovect pour on.

[ellisr]

I must correct you cairnhill it is a preventative, and it states this very clearly on the bottle. I must admit it is a very useful product if there is established flystrike as well.

I took advice from an experienced sheep farmer who has used this method for a long time and has very little trouble.