Many trees in a local city-managed forest area (Midwest, USA) have circumferential cuts like this. What is the purpose? Thanks!

by happywaffle12

8 Comments

  1. Babyfarts22

    To kill the tree. Potentially to begin the seasoning process to use it for lumber or firewood.

  2. botulinumtxn

    Idk if it’s on purpose or not but it’s girdling the tree, killing it

  3. Basidia_

    It can be done for a wide variety of reasons, if you reach out to the city that manages it I’m sure you could get an answer

  4. SelectRequirement450

    Former urban forester here. Maybe the owner wanted to retain as a habitat snag.

  5. Capital_Frosting3689

    They’re probably worried about the trees being so close to the trail and being so old. Cities don’t like tree based lawsuits

  6. SelectRequirement450

    Could be a trap tree too. Girdling causes stress, leads to chemical signal that insects pick up. They head to that tree and can be caught to monitor presence of an insect.

  7. FlintWaterFilter

    Oak wilt. When a tree dies from it this is how you prevent it from transmitting to other trees through the roots. They most likely treated the cuts with herbicide. Second tree looks like a white oak which is most likely a misconception on their part. 

  8. studmuffin2269

    Looks like an oak. Girdle and herbicide is used to control oak wilt in the Midwest

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