Cameraria ohridella

[Matthew Arnold]

These pictures were taken by my boss on a piece of land adjacent to ours. All of the Horse Chesnuts have been hit hard this year by the little blighters. Please note the one that hasnt been affected at all. It is an Indian Chestnut.

[David Humphries]

  RangerMatt said:

These pictures were taken by my boss on a piece of land adjacent to ours. All of the Horse Chesnuts have been hit hard this year by the little blighters. Please note the one that hasnt been affected at all. It is an Indian Chestnut.

 

 

Matt do you know if there is any Guignardia on the leaves of the Red ?

 

 

On the thread Tutti Fruity, there's a reverted Red with two branches that have the red type leaves that are free of cameraria with the rest of the tree (having normal horse leaves) looking like the above trees.

 

post 29

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[Fungus]

  David Humphries said:

Matt do you know if there is any Guignardia on the leaves of the Red ?

 

Photo 1 : Guignardia aesculi.

Photo 2 : Cameraria ohridella.

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[alliaria]

Hi Gerritt,

Aren,t there Cameraria in the first pic?

[Fungus]

  alliaria said:

Aren't there Cameraria in the first pic?

 

No, microscopically checked Guignardia aesculi, what else would you expect of a mycologist ?

[David Humphries]

Interesting to see this today whilst out and about looking at something completely different.

 

Whole Cameraria infected canopies, covered in a second flush of non infected new leaves.

 

The trees reaction to the pending photosynthetic loss perhaps.

 

 

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[sloth]

An interesting observation indeed. I dont think I've noticed a second flush like that on chestnut...