How to Stop Suckering on Soft Maple Trees

A homeowner in Ontario, Canada, has several soft maple trees that persistently produce suckers year after year, even though the trees are over 12 years old. They were told the trees would eventually outgrow this habit, but the suckering continues.

Solution

There is a product called Sucker Stopper that can be sprayed directly on the trunk area where suckers emerge. This treatment prevents new sprouts from forming. Check with your local garden center or nursery for availability. For more details, visit the manufacturer's FAQ page: Monterey Lawn & Garden – Sucker Stopper.