Had a 11-year old Sissoo tree in the backyard and found its roots pushing up our pool deck and pavers. I noticed some pavers pushed up 25-yards from the trunk and going to my house! Already had an arborist come out and remove the tree. I'm looking for some guidance and advice: The arborist didn't poison the trunk and let it sit for a few weeks. Instead, they took down the tree and used a machine to pull out the base/trunk. There are roots that I've dug up and exposed that are now growing green spouts and flowers. Is there anything that I can do to stop these from growing? Is there a way to poison the roots at this point? I am pulling up the pavers and in the attached pictures I show quite a large root getting all the way to my house (about 25-yards from the trunk) then diving down. Can I saw it off there and be okay or will it start growing from there? Same question with smaller roots--I can pull up the roots all the way to the end, but towards the end, they dive down and I can't get it. Can I cut it there and cover it and will that stop its growth? This sissoo tree really wreaked havoc to my backyard. I'm trying to do most of this work myself. Thanks for your guidance and advice.