Never tried it but I have seen mentioned male urine deters them, territorial marking.

Of course it could finish up your lawn smelling like a loo instead ;-)

I have the same trouble with a neighbour's cat. I'm afraid I sprinkle hot curry powder in the spot and it does do the job (sorry, couldn't resist that!) but it has to be repeated each time it rains. Perhaps it will work with a fox too.

Thanks gdad and arbuth,well put down a little of the male urine not much lol) ,didnt have curry powder so tried some crushed chillies and upto now no more fox mess .Hopefully its moved on we will see!

Caution: Urine won't be good for the lawn - will leave brown patches.

Thanks Paul hopefully mr fox will have moved on ,ive ordered some granulated repellent so urine will not be needed.

Please don't use chilli powder. I once got a tiny bit in my eye and it was agony. I've not used it as a repellant since, which is annoying because I'd bought a big bag of it from the Indian shop...