Bark split on Maple tree - Ask Extension
I have a large maple and the bark has a split of 1/2 inch or so about two feet long. What should i do to prevent insect damage, etc?
Knowledgebase
Bark split on Maple tree #904185
Asked June 03, 2025, 5:09 PM EDT
I have a large maple and the bark has a split of 1/2 inch or so about two feet long. What should i do to prevent insect damage, etc?
Manistee County Michigan
Expert Response
Good Afternoon,
It's generally recommended NOT to seal or patch a crack in your maple tree, especially if it's a "frost crack" which is a vertical crack that forms on the trunk during winter due to fluctuating temperatures. Never use a treatment such as paint, caulk, cement or any other material to cover a tree wound. These attempts to bandage the wound will trap disease organisms. Always trim damaged, jagged branches to an even surface, using a wood chisel if needed. This precaution will allow the tree to form callus tissue around the edges of the wound and eventually seal off the damaged area.
I would monitor the tree wound. You can also have an arborist come out and assess your tree. Find an Arborist
Consider recovery options for storm-damaged trees | Mississippi State University Extension Service
Tree Wounds: Should They Be Repaired? | Mississippi State University Extension Service
Frost cracks and winter damage to trees - Gardening in Michigan
Frost Crack - MSU Extension | Montana State University
I hope this helps. Thanks for using our service.
It's generally recommended NOT to seal or patch a crack in your maple tree, especially if it's a "frost crack" which is a vertical crack that forms on the trunk during winter due to fluctuating temperatures. Never use a treatment such as paint, caulk, cement or any other material to cover a tree wound. These attempts to bandage the wound will trap disease organisms. Always trim damaged, jagged branches to an even surface, using a wood chisel if needed. This precaution will allow the tree to form callus tissue around the edges of the wound and eventually seal off the damaged area.
I would monitor the tree wound. You can also have an arborist come out and assess your tree. Find an Arborist
Consider recovery options for storm-damaged trees | Mississippi State University Extension Service
Tree Wounds: Should They Be Repaired? | Mississippi State University Extension Service
Frost cracks and winter damage to trees - Gardening in Michigan
Frost Crack - MSU Extension | Montana State University
I hope this helps. Thanks for using our service.
