Posted: 30/06/2015 at 08:38
It looks as though Charlie November and I have the same problem with rabbits! The solution ref digging/mesh won't work for my garden either!
It's a bit of a myth that dogs will control the rabbit population - my whippets are very good at catching them but - of course - the dogs aren't outdoors 24/7! There are two rabbits just outside the window beside me as I type this, even though the dogs have already done what you might call their "morning patrol". One of the dogs actually caught & killed a rabbit the other day - and the dog was on the lead at the time - when we walked down the lane.
I have found that even those plants which are supposed to be what you might call "rabbit proof" get nibbled a bit - maybe the young rabbits taste the greenery and then decide that that didn't like what they'd tried. They don't, however, seem to touch wild poppies, foxgloves, euphorbias or hellebores.
Until a few years ago I had two semi-feral cats and I've no doubt at all that they dealt with the problem far more efficiently than I could have imagined, because since the demise of the last cat, the rabbits have taken over completely.
There have been several outbreaks of myxi during the time I've lived here, but the reduction in the rabbit population then doesn't seem to have lasted. I now have a theory that those rabbits which survived the outbreaks were probably those which had a tendency to stay above ground more than the rest, so didn't come into contact much with the affected ones. I gather that the disease is spread by the transfer of infected fleas from one rabbit to another - probably down in the burrows. Years ago I never saw rabbits at all during the daytime - it was only at dawn and dusk - but the current population seems to be above ground for most of the time, so maybe they inherited this trait from earlier generations which had that inclination. The adult rabbits are also far smaller than they used to be, so again perhaps it was the smallest/weakest ones which didn't "fit in" with the rest - and became some sort of outcast, resulting in the breeding of smaller ones.