Living trees. I am afraid to say it but I have not a flat on my current tractor. I did have several on my last tractor but never moving thorn trees. I try to handle them as little as possible and move them as short a distance as possible to reduce the chance of dropping thorns.You can do this without getting flats on your tractor?
Are the trees still alive or dead?
MoKelly
I would recommend poisoning the stump. Locusts will sprout from remaining roots. Putting brush killer on the freshly cut stump might, just maybe, kill the roots too.
I'd concentrate on soaking the cuts around the bark, not the center of the cut. Any sprouts will come from the bark area. I have a friend that's a consulting forester. He said to take a bottle, like a dish washing detergent bottle, and mix up a batch of roundup. Use the squirt bottle to soak the bark area of the cut directly after cutting. If sprouts occur in the future, make a fresh cut and reapply.Thanks! I hadn’t thought about that but it makes tons of sense.
I heard drilling holes and pouring brush killer in the holes helps.
MoKelly
I'd concentrate on soaking the cuts around the bark, not the center of the cut. Any sprouts will come from the bark area. I have a friend that's a consulting forester. He said to take a bottle, like a dish washing detergent bottle, and mix up a batch of roundup. Use the squirt bottle to soak the bark area of the cut directly after cutting. If sprouts occur in the future, make a fresh cut and reapply.
I believe herbicide can help here. Ask the mill owner if he will take any more that die then inject the rest with herbicide to kill them (without telling SWMBO of course). Next year,call the saw mill. Be very vigilent in watching for new sprouts from roots within 40-50 feet of stump and spray them.
I'm glad that it worked out with the mill!
But if your wife really likes the honey locust trees, perhaps it isn't all bad if the stump sprouts?
I can't really imagine having to deal with the thorns for years afterwards.
All the best,
Peter

I've never heard of a Honey Locust tree getting that big. The biggest one I've seen is about 2 feet.I'm glad that it worked out with the mill!
I have heard the roundup on stump advice, and looked at a few videos, too. However, I haven't had much luck with the roundup on stump bark/edges on my bay trees. The bays seem to sprout every year, and I cut them back each time. It has been over a decade, but then they were massive trees; the stumps are three to five feet across. I wouldn't have taken them out, but they were a fire and limb hazard. I guess that it depends on the type of tree.
But if your wife really likes the honey locust trees, perhaps it isn't all bad if the stump sprouts?
I can't really imagine having to deal with the thorns for years afterwards.
All the best,
Peter
Are you sure the forester said roundup on trees? Roundup is for control of grassy vegetation not brushy. Triclorpyr is normally the chemical used for brush. Sometimes a mixture of roundup & triclorpyr & diesel is used on hard to kill trees.I'd concentrate on soaking the cuts around the bark, not the center of the cut. Any sprouts will come from the bark area. I have a friend that's a consulting forester. He said to take a bottle, like a dish washing detergent bottle, and mix up a batch of roundup. Use the squirt bottle to soak the bark area of the cut directly after cutting. If sprouts occur in the future, make a fresh cut and reapply.
Yep. Roundup.Are you sure the forester said roundup on trees? Roundup is for control of grassy vegetation not brushy. Triclorpyr is normally the chemical used for brush. Sometimes a mixture of roundup & triclorpyr & diesel is used on hard to kill trees.