Hello if you can get Sork it's a natural mole detergent and drive the little devil back to his own hunting ground then put a cordon solitaire round the rest of the field one every 8 yards,Sork is a little allium that stinks,I once crushed the leaves and sniffed it my eyes watered for half an hour,Sork had a very tiny flower and mowing the leaves off doesnt harm it jezza