Oak Leaf Gall

This oak tree's leaves were covered with what I think,is a type of oak leaf gall.I tried googling it,but couldn't come up with anything definite.Many thanks for all your views,comments and favs,always much appreciated Many thanks,too,for putting my Michaelmas Daisy on the PP....which I also found on my walk.

[Jo]

Who strange - do they harm the tree.

[Jan Hall]

'Silk button galls' laid by the silk button gall moth (Neuroterus numismalis) Each one contains a larva which will hatch into a gall wasp between February and April next year. Great shot of them.
http://www.naturespot.org.uk/species/silk-button-gall-wasp

[Carole Imes]

Well spotted and great detail. Interesting info above!

[👑 AnaZad]

Great detail but it gives me goose bumps.

[carol white]

@jantan .Thanks Jan,thought I'd read something about a moth,but wasn't sure if that was it.

[Jan Hall]

Sorry carol I should have said WASP!

[virtualbrownie]

Great detail - really interesting to read what they are

[🐞Lucy Dolittle]

I wonder if this is bad this year, all our oak leaves seem to have this gall. Great and interesting capture

[Jane Pittenger]

Wierd. Hope it's ok

[Graham Thresher]

A really interesting capture. Fav

[Claire]

Nice capture..:)

[Yvonne]

Great detail, but ewwww!

[Caz]

Interesting ! Super shot

[judith deacon]

Terrific photo and fascinating detail from @jantan - one of the brilliant things about 365 is the exchange of knowledge.

[Julie Duncan]

SICK! Great find and photo though! :)

[Shirley Chetwynd]

Yikes, there are so many on one leaf.

[Alison Hewitt Bailey]

Wow! Never seen anything like that! Well spotted and captured.

[Christine]

Interesting find

[❀ Lynn]

Cool shot! Great info too.

[Debbie]

Great find! Thanks for sharing your discover! So interesting!