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My Rowan tree is showing signs that it may be dying. The leaves are starting to turn brown and the bark is splitting open on the trunk. Has anyone any ideas what is causing this? I had exactly the same problem with another about 3 years ago with the leaves not falling in the Autumn when they had totally turned brown and the bark on the trunk showed the same splitting. I had to resort to felling and replacing it.
Healthy Mountain Ash trees are gorgeous specimens that can help brighten up even the most unattractive yards. However, the species is not immune to diseases that can rob it of its beauty and charm.
Among the most common infections that afflict the Mountain Ash tree include:
Mountain Ash is also susceptible to sawflies which can defoliate the tree within a few days.
Found the above while surfing and thought it might help you with a diagnosis!
This is what the leaves, berries and bark look like. Looks like it might be Leaf Spot plus something else. Anyone any ideas what it is and how to cure it?
That splitting of the bark at the base of the tree looks extremely serious and possibly a sign of Honey fungus, unfortunately. It would also explain why you recently lost another one. Have a look at the RHS advice:
Thanks for that. However, looking at the RHS link you sent me I don't think its Honey Fungus as there are no signs at the base of the tree and the splits in the bark go up to at lease 3m.
You stated about your old trees `the leaves not falling in the autumn, that is a tell tale sign of fire blight this also causes splitting of the bark
The bark splitting is the tree trying to protect itself from disease
The tree above, could you go out with a sharp knife and take the bark off round the scar and tell me what colour the trunk is under the bark you have taken off and is it oozing pus
It might be another form of fungus, Magnum. Try poking a large screwdriver etc through one of the cracks in the bark into the heartwood of the tree. It should be solid. If it crumbles, then the heartwood is rotting and it will be terminal as the wood will have lost it's strength and the tree will be prone to being blown down by the wind, or branches may fall under their own weight, making it dangerous. Have a good sniff through the cracks too - any hint of a "mushroomy" smell would also indicate a fungal infection. Those are not treatable, unfortunately.
This is what it looks like under the bark. There is no mushroomy smell and no signs of oozing. A screwdriver only goes in about 5mm.
A Reddy Brown discolouration on the trunk is Fire Blight
I think Buddyboy is right.
I have a similar problem and from the thread I think that my tree has Leaf Spot. I have been unable to find any information relating to the treatment (if there is one) . Any information would be appreciated.
If you are positive it is only Leaf spot, it can be either Fungal or bacterial, to combat this all leaf litter needs to be lifted and disposed of now and after leaf fall to limit the infection, if feasible you can spray with....Bayer sythstane fungal fighter
Ive got 2 trees one garden centre bought another from wild stock the one from wild stock has grown the bigger but both have always had good foliage and berries to feed the local birds the wild one this rear is bare of folage and berries the other is still looking lovely covered in leaf and berry the wild one my favoured one looks so sad and the branches are looking deformed with big knobbly growths any idea whats wrong with it
Just to let you all know. No sign of sprouting this year so fell victim to the chainsaw. Centre of trunk bone dry with no sap rising.
I have a rowan that overall appears to be in good health and as I write is covered in developing berries. However the bark of one large branch is badly split and this damage is starting to creep down the trunk. The damaged branch has had foliage in previous years but this year is completely bare. A neighbour tells me that it might be a fungal infection caused by pruning. Should I amputate the damaged branch, and if so, would it save the tree?
I have a rowan tree which is at least 20 years old and which ordinarily produces plenty of red berries. This year, however, for the first time ever, only one side of the tree is covered in leaves; the other side is bare, save for a generous coverage of ivy which has steadily over the years grown up each of the stems on the side that is now bare. Most of these stems are now discoloured (orange) and the bark is soft and spongy. Bark on main trunk has also started to split, revealing a rusty brown colour beneath. Any advice as to what I should do (if anything)?
Pat - if the rot has spread back to the trunk I'm not sure that there's anything that can be done. Could you post a picture for us to have a look at please?
Paul - I'm sorry but it does sound as if your rowan is on its last legs.
Never realised Rowan trees suffered from all these problems, maybe I will think twice about having one
Most trees are susceptible to various problems if they are not growing well and under stress. However a tree that is in good condition and growing strongly is usually able to throw off most bacteria/fungal attacks etc.