Sunday 3 September 2023

Corstorphine Hill

We had a lovely walk round Corstorphine Hill yesterday, in warm sunny weather. 

Speckled Wood Butterflies were flying around everywhere, though this is the only one that stayed still enough for a photo (click on the photo to enlarge the image)

We walked to the top of the hill, where the Corstorphine Tower was built as a memorial to Sir Walter Scott (you can read more about the tower here). 

Near the tower is this magnificent Scots Pine tree 

Signs of autumn are starting to show, including the presence of galls on some of the oak trees, including these Knopper Galls, which are caused by the knopper gall wasp (Andricus quercuscalicis). The gall starts off quite small on the top of the acorn,

but then grows

and grows until it takes over the entire acorn. There can be a lot of Knopper Galls on the same tree. 

You can read more about Knopper Gall wasps on the Woodland Trust website.


Jenn Jilks said...

That is really interesting, about the gall wasps.

Lowcarb team member said...

Lovely photographs from your walk round Corstorphine Hill.

All the best Jan

Caroline Gill said...

That looks like a lovely walk, CGP (and beautiful weather) ... and I did not know the tower had those Walter Scott links. I'm also pleased to learn a bit more about the galls which I have seen here, too.