Disease Control in the Landscape

Bulletin 614

Figure 9. Proper pruning of tree branch. Remove the major portion of a tree branch with cuts A and B. Cut remaining stub at outer margin of the branch collar; C.	Figure 10. Removal of soil from around the base of this tree has cut major roots and left them exposed.
Figure 11. Trenching close to trees and shrubs to bury lines or cables results in major damage to the root system.	Figure 12. Cut exposed roots due to construction activity.