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My Rowan tree has got a disease that I would like some help in identifying if possible? I think that it is probably leaf spot or fire blight but I am not sure. The leaves have been developing brown spots and some defoliation has started. The bark does not seem particularly bad and I cannot see any signs of honey fungus when I cut a little bark away. I have cut away a couple of branches and there is some dark stains inside the branches. If it is leaf spot does anyone know how to tell if this is caused by bacteria or fungus? I would like to treat the tree if it can be saved but I need to identify the exact problem first.
Thanks for your advice Charlie November. My only concern is that it has been infected a while, since I have only recently moved to this property and noticed it. There may be nothing left that is not infected.
I wish I could be of help as it might thow some light on my problem. My Rowan which has yellow berries has been ok untill this year when it has developed dropsy, all the leaves are dropping off one at a time. We inherited it some two years ago so can't be sure of its age but I think about 15-17 years going by the age of the property. We are in a very clay laden area in South Devon.
I'm having similar problems with my two rowans that have been there since the house was built about 50 years ago.
This year there are hardly any leaves or berries, the leaves are spotted brown and the bark is splitting away from the trunk.
From what I've read here, it sounds like a combination of fire blight and leaf spot - is that possible?
It sounds as if your rowans are coming to the end of their life. They're not long-lived trees http://treesforlife.org.uk/forest/species-profiles/rowan/
A local tree surgeon has just had a look at them and confirmed what you've said. They're both goners. The trunks are enormous (apparently the widest he's ever seen) and it's not possible to get stump grinders into our garden so I can't have them dug out to plant new trees in their place.
Feeling very sad and a bit guilty for cursing them for dropping their berries on my garden furniture every year.
Could you get one of these portable stump grinders into the garden?
The dimensions are given http://www.hss.com/hire/p/portable-stump-chipper