Tree suckers are vegetative growths that stem from your tree’s root system. Suckers grow from rootstock and divert nutrients away from the top of your tree and will slow its growth.
Essentially, suckers are a tree’s attempt to grow more branches, often in response to some kind of stress or injury. A tree sucker will sap the energy away from the healthier and more desirable branches on top.
Here are some ways you can eliminate suckers and/or keep them under control.