The arborist just left. Tree has some sun-scorched leaves & Anthracnose.
Remedy is to have it sprayed 3 times in the spring. Twice in March & once in April @ $100/ spray.
He said he does not believe tree will die anytime soon & this disease is not fatal.
He also saw a young elm tree growing in my back yard & pointed out poison ivy under my deck. 😳
I asked about Superthrive & he just shrugged. Not exactly a tree hugger. He reccommended RoundUp to kill poison ivy! 😳🤯 then he said all the "hoopla" about Round Up is just "fake." 🤬 i know better - no worries.
Thank you all so much for your supportive responses. 
On Edit: PS - He took samples to send to a lab for testing to confirm disease. Not sure how abrorists make any $. Evaluation & testing were free.
Edit history
= new reply since forum marked as read