Fireblight

[tommytopsoil]

Hi all, we have a few young Rowans and a couple seem to have what looks like fireblight. This is the eldest tree and the worst affected. On a slight gradient with a good amount of soil, not too dry or wet. Can anyone with a little more arb knowledge confirm what this is please and if so, how it may be treated?

 

I understand that pruning back well past the affected part helps with firelight? I wanted to get a photo first. Also, this one is obviously growing at quite a rate and becoming tangled with its neighbour - worth pollarding in the future and turning into more of a bush?

They do provide a good mount of screening so would like to avoid losing it altogether.

Also, I would like to prevent the younger trees becoming infected too.

 

Apologies for the quality of the photographs - the sun was right behind the trees.

 

I look forward to some opinions!

Tommy

[Andy Collins]

Cannot confirm it, but I have seen two separate incidents of Rowan looking like this. In the cases I saw, I didn't think it was fireblight, but tbh I didn't consider that either. I'll look closer at the two I have with that in mind and see what I think now.

[David Humphries]

Is there any orange staining within the affected material?

 

 

 

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[tommytopsoil]

Cannot confirm it, but I have seen two separate incidents of Rowan looking like this. In the cases I saw, I didn't think it was fireblight, but tbh I didn't consider that either. I'll look closer at the two I have with that in mind and see what I think now.

 

It would be great if you could Andy, and advice appreciated. I noticed it on one of the younger trees too last night.

 

Is there any orange staining within the affected material?

.

 

Hi David, I am not sure to be honest where to differentiate between what I assumed was a dying leaf to what may be classed as staining - I could do with seeing one partway through the cycle I suppose so will look again later. The orange colour you see in a couple of the close-ups didn't stand out as staining, but I was not looking for it so will come back to you. Thanks

[tommytopsoil]

Is there any orange staining within the affected material?

.

 

Had another look, no so easy to tell on the 'already-dead' leaves, but on the youngest tree there is slight orange staining on a couple of leaves, almost like large blotches.

This young tree is looking very off-colour with some of it having a real pale yellow tint. There is another slightly older one that seems to be very green yet the whole tree seems to be turning the edges of it's leaves up slightly.

There are dead leaves present on every tree now.

 

Any ideas?

[woodyguy]

Sorry to answer for David but I assume he meant "was the wood stained a brown/orange colour" which is typical of fireblight. Don't think he was referring to the leaves. Peel back the bark and see if it is stained. Very characteristic if it is.