im kinda getting a mental image of someone who looks quite a bit like burt from the tremors movies, blowin' up moles and such....if you've ever seen the movies you can probably relateanyways, how many moles would you estimate you have? i suppose you could drown 'em out of their holes with water, use mouse traps, or keep tinkering with traps. if their that big a problem i'd call some buddies and plan a mole hunting day. get out, track 'em down and eliminate them.