You can typically remove about one-third of the total tree roots with no problem. This is done sometimes when trenches are cut in the soil for burying irrigation lines. But when roots are cut, about one-third of the top should be removed as well.
Bob Morris
![](https://www.reviewjournal.com/wp-content/uploads/2018/11/BOB_MORRIS_980x550.jpg?w=900&h=550&crop=1)
Gardening columnist
Email: Extremehort@aol.com
Bob Morris is a horticulture expert and professor emeritus of the University of Nevada, Las Vegas. Visit his blog at xtremehorticulture.blogspot.com.
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