What are the White fuzzy growth at older points of trimming?
Trimmings from what kind of tree? I need more information to answer the question. The second photo is blurry.
I suspect an insect such as mealy bug or cottony scale, but can't see enough detail to be certain.
Could you potentially scrape some off into a baggie and bring a specimen into our office at 2011 Fairgrounds Road? The office phone number is 235-9400.