My fig tree looks like its branches near the ground has something eating it or it looks like its decaying. I don't know what to put on it, don't want to kill it, so I thought you might know if it's a bug or fungus.
Brown Turkey Fig Tree Bark Issue
Certified GKH Gardening Expert
It sounds like you may have a wound canker at the base of the tree. It is a common ailment for trees where weed wackers or lawn mowers have done some damage to the bark at the base of the tree. The wounds allow fungus to get in. Treat the area with fungicide and use a plastic collar around the base of the tree to protect it from further damage.