I've tried everything down the holes from traps to bleach to poisoned worms
to hosepipe attached to the exhaust of the car to cooking oil to petrol etc,
and all they do is make the mole close it's tunnel and open another
elsewhere - which may be on your neighbours garden or the middle of your new
lawn!

I've given up fighting them (my lawn is nearly an acre) and will never look
like a bowling green.

However, I've heard other people rave about this lethal looking thing:

A "mole trap plunger" - Look on Google for that phrase if the link below
doesn't work.

http://www.northerntooluk.com/produc...trap%20plunger


Ironically I've found a good use for the moles now - I use the fine soil of
the mole hills for potting on plants, it's nice and fine and relatively free
of weed seeds. So now I'm not too disappointed when I see yet more hills on
the lawns. Not such a bonus if your lawn is fresh laid though!

David.