why are branches on my maple tree dying

Why has my red maple leaves turned green and no longer have the dark red color. Just this week I put in some Jobe;s tree fertilizer spikes, because of the soil composition. $9.99 atcontainerstore.com (Container Store). When you remove only part of a branch, cut back to just below a side branch or twig. Dont let the tree dry in the summer. I would ask another arborist for an opinion. what is this? I have never had a problem with them. The only strategy that has proved sometimes successful with Verticillium is root feeding. If it happens again next year, try to find a good arborist to visit. So I wouldnt worry see what happens next fall. Without more information the best we can tell you is this is common for trees that have or are going through some major stress. Is this due to large amounts of rain weve been having. Autumn Blaze Maple Now the weather has suddenly turned from a cool wet spring (for this climate anyway) to blasting summer heat. I will also water it daily again as I did for the first few weeks following planting. Was doing fine all spring, but is now loosing leaves at the end of its branches on the windward side and developing a light green fungal looking growth on its trunk. An arborist has the training and knowledge required to diagnose and successfully treat tree problems. Then I noticed the buds on some of the trees were all beige and looked like they were sprayed with a chemical as the leaves looked shriveled.. Could you please tell me what is happening to my beautiful Maples? Autumn Flame Red Maple Im hoping to return then to healthy trees as I really dont want to lose them. I realize this is an Acer genus forum bur black wart things starting on the ends of branches sounds like black know to me. No digging around the tree for 20 years. Is the bark loose, with a space beneath it? If not and verticillium wilt is the diagnosis, don't plant another that is susceptible to verticillium wilt in the same place because the fungus will remain in the soil for a long time.

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