Same as Tyke I have ants everywhere, I even opened a bag of old leaves that has been behind the shed for 18 months hoping to use the leaf mulch and it was full of ants and their eggs, so as Tony said I opened it to the elements hoping the birds and the rain (pouring down now ) would sort out the problem, also I have been digging up some plants and disturbed ants nests so I have tried to spread them on the soil, so time will tell. ;D ;D ;D