I moved from NY to MS..the 4 mature Holly trees "MAKE" this house. I have and am noticing 1 of the trees look sparse and have fewer red berries than its partner. The other two trees have yellow / fuzz/flowers right now. Any advice would be greatly appreciated. The trees have been fine for at least 9 years.. The tree of concern is second from the left. All trees have some quarter to fifty cent size light grey spots....I garden and fertilize and prune. This house is NOTHING without these four trees lining the front of the house...I have added the photos as attachments?