I had a Norway maple cut down last year about 20' from our deck. Most of the stump was ground away except by a fence along the neighbors the driveway. So now that it's been warm we've been getting a rotten milk stench every once and awhile wafting on the deck.. So today I washed the deck and looked under it and still got the stink. Well it's the stump. Anything I can put on it? I do have a dog that goes in the yard but not by the stump.