Tulip tree is this canker? How to treat ?

This was a free tulip tree from the city planted on my front last. Wind blows from west often and bends tree a little to the east. It had been planted on my lawn about 5 years? I just noticed…

Ginkgo Tree has large areas where bark is missing

Zone – 4B, Sun for most of the day, Tree is in a sheltered near to house. I noticed that there are many holes on the trunk of the tree. Just below where the tree starts branching out the bark…