Q.Rowan Tree – Not All Branches Producing Leave
The top branches are not producing leaves and the top looks like it’s dead or dying. Why is this happening and why what can I do?

Certified GKH Gardening Expert
Unfortunately, these trees are susceptible to a range of diseases that cause this issue, as well as nutrient deficiencies and pH issues. You may need testing to know what is causing this problem.
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https://www.gardeningknowhow.com/ornamental/trees/ash/european-mountain-ash-2.htm
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