>Just wanted to pass this on to folks who have trouble with moles.  Our
>sidewalk was brick laid in sand, and periodically a few bricks---or a
>bunch of 'em--- would be heaved up by moles.

>Four years ago I laid a new sidewalk, new pavers in sand.  Before
>laying the pavers, I dug a trench a few inches deep down the middle of
>the sand, for its entire 60' length.  Poured about two gallons of
>castor oil (supposedly repels moles) in that trench.  Waited for it to
>be absorbed.  Smoothed over the sand and placed the pavers.  Since then
>there hasn't been a single paver heaved up by moles.  Unfortunately the
>beasties still show up in other areas of the yard, but I don't really
>care as long as they don't mess up the sidewalk.  And occasionally
>Shadow the cat finds one and plays with it.... <grin>

>Castor oil can be had from soapmaking suppliers.  If memory serves I
>paid about $80 for a five-gallon bucket.

>Hope this helps -- Terry