My father has a little garden that he plants green onions and tomatoes in right in front of house. neighbors have an in ground pool with a pool house and wooden fence around it (they don't really take care of the place very well as fence and pool house is in disrepair as none of the wood used was treated and inside fence weeds and ivy are every where) and all kinds of animals are living underneath all of it(racoons, rabbits, oppossums, groundhogs,skunks.) the groundhogs get in garden every year and hammer the tomatoes and eat the tops off of green onions. he put up a fence and they dig under it no matter how far down in ground he puts it. we have trapped them but there seems to be a never ending supply of ground hogs under that pool house and they still get in. he has tried putting mothballs all around fence of garden and inside as well and that did not work. tried putting ammonia around fence and that did not work. do you folks know of anything that will keep them out. any help would be appreciated. neighbors are supposedly going to tear everything down and get rid of pool but the way they are that might be years from now. also we are in a small town and shooting them is not an option(houses too close, too many kids running around, and illegal to discharge firearm in town). again any help would be welcome.