Severe Maple tree bark insect damage
Had insect infestation that appears to have been remedied by physical and insecticide application. 60 percent of bark needed to be removed from around the tree. Approximately 20 inches of 40 inch diameter. What should I apply to prevent insect return? Can I speed wound closing and healing process other than cutting smooth margins and removing decayed bark? Any other advice to save tree as it’s just beyond 50% of diameter bark gone.?
We are curious to know what insect required removing 60% of the bark.
But, at any rate, losing anything near 50% of its bark is usually fatal for a tree.
Wound dressing has been proven to slow down, not help, healing. We cannot recommend it. We recommend letting trees heal themselves if they can.
Here is a helpful guide about when to remove trees: https://extension.umd.edu/hgic/topics/how-do-you-decide-when-remove-tree