NS3878 : Leaf galls on rowan

taken 7 years ago, near to Renton, West Dunbartonshire, Great Britain

Leaf galls on rowan
Leaf galls on rowan
See NS3878 : Cycle Route 7 at Renton, where a line of trees, located between the cycle route and the River Leven, is visible near the centre of the image. One of those trees, near the southern end, is a rowan, Sorbus aucuparia.

The present photograph shows some of the galls that were present on that tree, in what look like rounded pustules on the underside of the leaf (a closer look would reveal that they are in fact what are called erinea, patches of fine hairs, resembling felt); there were corresponding pale patches on the upper surface. These galls are caused by Eriophyes sorbi, a species of mite.

Part of the cycle route can be seen indistinctly in the background, on the right.
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NS3878, 210 images   (more nearby )
Photographer
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Date Taken
Friday, 11 June, 2010   (more nearby)
Submitted
Tuesday, 22 June, 2010
Geographical Context
Rivers, Streams, Drainage 
Near (from Tags)
River Leven 
Place (from Tags)
Renton 
Image Buckets ?
Closeup  Life 
Category
Galls   (more nearby)
Subject Location
OSGB36: geotagged! NS 3887 7817 [10m precision]
WGS84: 55:58.1646N 4:35.0000W
Camera Location
OSGB36: geotagged! NS 3887 7817
View Direction
SOUTH (about 180 degrees)
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Other Tags
Plant Gall 

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