do you mean suckers that are coming up from the roots of a tree that has been cut down? Or do you mean the suckers that come up from the roots of the living tree that you want to keep?
Froggy

I mean on a tree that was cut down. I am doing a flower bed there and this is driving me nuts.

As long as there is energy in the roots, it's going to try to send up suckers. We have used Weed-B-Gon mixed double strength with good results. If you keep the sprouts popped off as soon as you see them and spray the stump, you should see them gone before next spring.
I'm sorry I can't help you on the web site that you want. Good luck, stumps can be a pain!
Froggy

Thanks, Froggy. You really have been a help!
Amy

There are products out there...and I used to know some of the names but not anymore. they are primarily used commercially to keep trees looking nice without manpower.

I want to say Tree Hold? But I do know exactly what you are talking about.

I'm trying to find something that will stop and/or kill suckers on trees I want to keep. Any help out there?

I would like to stop sucker growth both on the trunks and roots of living trees.

ANyone know of a good remedy?

Does Sucker-Stopper RTU really work?

thanks!

"Sucker Stopper" works better than without but nothing is a miracle worker. I've only used it on the tree trunks. Worked really well on a river birch and not as well on another tree.
Some trees, like Bradford pear, just are horrible about the roots.

Amyta, find the larger roots which are the remains of the tree and remove some dirt from around them. Use a drill and use a paddle or spade bit. Drill into the root, do not drill through, just drill out a wide hole. Fill the hole up with Round-up BRUSH concentrate. It will spread throughout the root system and kill them all. Thus ends your sprouting problem.

Perhaps just continually plucking them out may help too. Don't let them get too large as they will store more energy in the roots.

I have had excellent results with Green Light Stump and Vine killer. The trick is to put it on immediately after you cut the tree. I would try cutting the suckers and treating them with this poison, or if possible, recut the stump and then treat it.

I have 4 beautiful flowering pear trees. Two of them keep sending up sprouts from the roots and the other two don't. Do you know how this can happen? They were planted in 2004 and seem identical otherwise.

Is there something that can kill crabpple tree suckers without harming the tree? Thanks

Consistent pruning, done shortly after the suckers begin to grow, does the trick.

After cutting off the suckers, could I use prunning sealer? Would that stop them from comming back?