After you've removed a pear tree, you may notice tiny trees sprouting up from the stump or the ground around the stump. These tiny trees, which are known as suckers, spring from the still-living roots of the tree. Suckers are an attempt on the part of the tree roots to continue living by sending out a new tree. You can eliminate suckers by removing the pear tree roots from the ground.
Remove the soil around the base of a remaining pear tree stump, or the location where a pear tree stump once was, using a shovel and pickax. This is called a root collar excavation (RCX). The RCX will uncover the roots of the pear tree.
Continue to dig out the dirt around the roots of the pear tree with the shovel, weeding hoe and pickax. Because pear tree roots spread out along the surface of the soil rather than develop a tap root, you will not have to dig very deeply.
Cut away tree roots in sections using a branch lopper.
Remove larger tree roots with an ax or a mattock.
Push the soil back in place over the tunnels where the roots once were.