Ohio State University Extension Bulletin

Disease Control in the Landscape

Bulletin 614


Figure 5. Figure 6.
Figure 5. Excessive mounding of a mulch around the base of a tree. Figure 6. A flush pruning cut. An improper cut that removes the branch collar.
Figure 7. Figure 8.
Figure 7. Improper pruning with branch stub remaining. Figure 8. Location of branch collar and branch bark ridge.

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