Horse Chestnut Leaf-miner Survey

[treequip]

Apologies if this has been done before but I stumbled across an app for the iPhone which lead me here

 

What's happening to our conker trees?

 

Horse Chestnut Leaf-miner Cameraria ohridella

[RobArb]

don't know about leaf minor causing smaller conkers?

 

theres a tree in our yard that gets leaf minor every year and last year the conker crop was the biggest and largest i have ever seen!!

[Tony Croft aka hamadryad]

don't know about leaf minor causing smaller conkers?

 

theres a tree in our yard that gets leaf minor every year and last year the conker crop was the biggest and largest i have ever seen!!

 

trees will produce many smaller fruits/nuts in stress in order to reproduce at times of stress, the stress however means that the mass attempt at reproduction sees up to 70% infertile (panic) production.

[RobArb]

i picked 7 up in january (from last years crop after the snow melted) and 6 have germinated and are now growing in little pots in my garden

 

i will plant them somewhere eventually:thumbup:

[Fungus]

trees will produce many smaller fruits/nuts in stress in order to reproduce at times of stress, the stress however means that the mass attempt at reproduction sees up to 70% infertile (panic) production.

 

Aesculus does either stressed by Cameraria ohridella (photo 1) or by Guignardia aesculi (photo 2).

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[elicokiz]

Aesculus does either stressed by Cameraria ohridella (photo 1) or by Guignardia aesculi (photo 2).

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Hi Fungus

 

is Guignardia aesculi present in the UK, I was totally unaware this leaf spot even existed?

regards

Dave

[Fungus]

is Guignardia aesculi present in the UK, I was totally unaware this leaf spot even existed?

 

Dave,

See : Guignardia aesculi.

[elicokiz]

Dave,

See : Guignardia aesculi.

 

Thanks Fungus

Think I may have been caught out with that in the past, must get out more??

Dave

[Bundle 2]

Glynn Percival has studied and quantified the effects of stress ( leaf minor, bleedin' canker & Guignardia- whu ) on the fruit production ( Sorry- nUT ) and viability thereof in HC....

Whilst industry professionals of repute and standing claim the plight of HC is not threatened...how can a species procreate with unviable seed production ? It cant...can it ! ? Such is the gist of the studies conclusion !