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| 1 | 2 |  » Stats |
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| | Welcome to our newest member, Posbyonechop | |  | 
11-10-2009, 08:20 AM
| | Officer of the Wild Empire | | Join Date: May 2007
Posts: 986
| | | Is this a fungus ?
Not quite sure what to make of this- but assume it might be a fungal infection gall ?
About 7mm long on the underside of a pear leaf- taken yesterday South coast UK.
Brian v. 
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Brian V. |
11-10-2009, 10:37 AM
|  | Commander of the Wild Empire | | Join Date: Oct 2005 Location: Lincolnshire
Posts: 1,416
| | | Re: Is this a fungus ?
Yes Brain, it's a gall caused by a fungus - I think Gymnosporangium sabinae is the causer. It requires two hosts - pear and juniper. |
11-10-2009, 11:08 AM
| | Officer of the Wild Empire | | Join Date: May 2007
Posts: 986
| | | Re: Is this a fungus ?
Thanks nutmeg  Just found the same answer myself European pear rust (Gymnosporangium sabinae) .
Brian v.
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Brian V. |
11-10-2009, 11:31 AM
|  | Commander of the Wild Empire | | Join Date: Oct 2008 Location: Huddersfield, West Yorkshire
Posts: 3,648
| | | Re: Is this a fungus ?
hi
it's not quite that simple - there is the remote possibility also of Gymnosporangium confusum on pear - they are best differentiated by seeing whether the peridial cells have ridges or isolated warts
though confusum is mostly confined to Crataegus in this country
cheers
Chris
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"You must know it's right - The spore is on the wind tonight"
--Steely Dan, "Rose Darling" |
11-10-2009, 03:43 PM
| | Officer of the Wild Empire | | Join Date: May 2007
Posts: 986
| | | Re: Is this a fungus ?
Quote:
Originally Posted by Chris Yeates  hi
it's not quite that simple - there is the remote possibility also of Gymnosporangium confusum on pear - they are best differentiated by seeing whether the peridial cells have ridges or isolated warts
though confusum is mostly confined to Crataegus in this country
cheers
Chris | Thanks for the additional info Chris- think you are trying to confusum us.
Brian V.
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Brian V. | | |
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