To solve this problem once and for all, it is necessary to form a correct understanding of the situation.
The shoots originate from the mother roots. It is also wrong to simply ignore the young trees - they will take away some of the nutrients, which will affect the harvest.
This is the defining moment. The problem is not even that the plum will take up part of the free space, turning the area into an impassable thicket.
Growing from the roots of the tree, the shoots will take away some of the strength and nutrition, which will cause the harvest to decrease.
The mowing method, popular among summer residents, is simple, but does not solve the problem. Digging up the roots and removing the growth that has arisen on them also does not stand up to criticism.
First, you will have to dig 35-40 cm deep for each seedling.
And secondly, no one can guarantee that in a few months the seedlings will appear, but in a different place.
There is a method that gardeners have tried and tested. It will take some work, but it will solve the problem for several years. To do this, remove the top layer of soil approximately 50 cm from the tree trunk and along the radius of the crown. If there is undergrowth, it should be cut out.
Then the soil in this area is covered with several layers of cardboard, watered, compacted, covered with dark film or agrofibre on top, sprinkled with sand and soil.
You can lay a removed layer of turf on top or plant flowers. In the next few years, plum shoots will not appear in this place.