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Trees with disease


Richard 1234
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Look like tar spots, nothing to be worried about

 

I'd agree with this.

 

If you're on the main forum and not looking via mobile, have a look at the gallery images and info from the below link.....

 

Rhytisma acerinum - Sycamore Tar spot - David Humphries’s Fungi Directory - Arbtalk.co.uk | Discussion Forum for Arborists

 

 

 

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Many thanks for taking the time to reply I will look at the link later as mobile signal is poor here everything takes ages to load up!

It looks as if it is killing them its on the small trees little sapling that have just grown themselves from dropped seeds.

 

yes its a bad infestation on those seedlings - photosynthesis issue

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Out of interest, I have a Sycamore that is effected by the same disease.

What actually causes the spots to form?

Does it indicate other problems are likely to be developing?

 

I can confirm the lack of air pollution, we have lichen growing every where up here, even in the middle of the public road....

 

Chris

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Out of interest, I have a Sycamore that is effected by the same disease.

What actually causes the spots to form?

Does it indicate other problems are likely to be developing?

 

I can confirm the lack of air pollution, we have lichen growing every where up here, even in the middle of the public road....

 

Chris

 

Fungal spore that over winter on the fallen leaves, which then drift to new host.

 

I don't think it necessarily requires a stressed host to latch on to.

 

 

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