we talking about a squrill dog correct
you wont need and dont shoot fire crackers arround your dog period, they dont like it and it is different than hunting. walk the dog through the woods, sit watch, let him search and be a dog. he will know what to do and it will take time, once he finds something to chase his brain will kick in and he will chase . if it goes up a tree try to excite him. shak a bush, rattle a branch, if it's season start out with a 22 rifle gun and shoot the rodent and let the dog have it, he will not eaven notice the gun,if he is barking and you shoot the game out to him. remember there are built in hunting skills and you just have to wait and watch. expose him to the woods, 80% of the training, then just help him a bit take him to a city park or house with lots of squrills and let him chase and tree. I have trained a few tree dogs and I never really done much but took them and just let them be tree dogs. once they treed I did everything I could to excite them and get the game to them and let them waller it arround,
probably didnt make much sense but it's the best I can do with out seeing your dog and you in the woods, bullwinkle