slugs in maple tree

Question

I have mucho slugs coming from under the bark of a maple tree. Does this indicate the tree is rotten inside? The area where the slugs are seen is south facing. We are looking to prune back the maple to give more sun to the lawn when a darken area with slime was seen. Does this tree need to be completely cut down? Salt was sprinkled the first time, but a week later there are more. So more salt was sprinkled. Does the tree need to be cut down?

Answer 1

I think your maple tree is afflicted with bacterial wetwood (slime flux). Take a look at the following article on slime flux and let me know what you think:
https://www.gardeningknowhow.com/ornamental/trees/tgen/wetwood-bleeding-trees.htm