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|  » Stats |
Members: 50,177
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| | Welcome to our newest member, Ruralman | |  | 
23-02-2008, 10:31 PM
|  | Wild Member | | Join Date: Nov 2007 Location: Ayrshire
Posts: 148
| |  beech leaf
could anyone tell me what this is on the leaf on the left of the pic. it has intrigued me since i took it?  
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If a tree has a BARK, then why can't I hear it? |
24-02-2008, 12:18 AM
| | Member of the Wild Empire | | Join Date: Apr 2006 Location: Saffron Walden
Posts: 403
| | | Re: beech leaf
I think it is a gall, take a look at the fourth picture on this page Nature Notes |
24-02-2008, 06:23 AM
|  | Commander of the Wild Empire | | Join Date: Nov 2007 Location: Outside Bewdley in a wood with stream in garden.
Posts: 2,892
| | | Re: beech leaf
I'd say that's definitely a gall but not sure which one. Just had quick look in a book but couldn't find it, sorry. |
24-02-2008, 07:22 AM
| | Wild Member | | Join Date: Nov 2007 Location: Ayrshire
Posts: 148
| | | Re: beech leaf
Quote:
Originally Posted by Ferret  I think it is a gall, take a look at the fourth picture on this page Nature Notes | looks very similar. thanks.
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If a tree has a BARK, then why can't I hear it? |
24-02-2008, 09:03 AM
|  | Commander of the Wild Empire | | Join Date: Oct 2005 Location: Lincolnshire
Posts: 1,417
| | | Re: beech leaf
Yes, it's a gall caused by a mite, Hartigiola annulipes. |
24-02-2008, 03:41 PM
|  | Commander of the Wild Empire | | Join Date: Apr 2007
Posts: 1,238
| | | Re: beech leaf
I'd back Hartigiola annulipes as well, but it is not a mite but a fly from the gall midge family (Cecidiomyiidae).
There's a nice picture in the Gallery of galls on a green leaf : 
According to the FSC Key to Plant Galls by Redfern et al p. 327, these can be hairy or smooth. The galls usually fall from the leaf leaving a small hole (there are a couple of spots on the leaf which may indicate the site of more galls).
HTH,
poschiavanus |
24-02-2008, 06:14 PM
| | Wild Member | | Join Date: Nov 2007 Location: Ayrshire
Posts: 148
| | | Re: beech leaf
thanks for the feedback. i was not sure if it was a gall or not but now i know. cheers. 
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