Question
I live in Ontario Canada and have a few Soft Maple trees in my yard. They continue to sucker year after year.Someone told me that they will outgrow, but now the trees are at least 12 years old. They still sucker......wonder if there is a way to stop it

Answer
There is  a product called Stop Sucker that can be sprayed on the area of the trunk that is suckering and this will stop the sprouting. Check with your local garden type store or nursery for this product. Here is a web link for more information on it. http://www.montereylawngarden.com/faqs/suckerstopper/