Oak Tree

[Whickerman]

I have an oak tree - quite young, about 10-12 years. I've noticed pea-sized 'growths' on the leaves - not only on the stalks, some actually about in the middle of the leaves. Any idea what these are?

[boxtops]

anything like this?
http://plantclinic.co...lister/oakblister.htm

[Whickerman]

hi boxtops

nope - the 'pods' (for want of a better word) are about the size of a garden pea. they're mostly right where the stem meets the leaf, but some are right in the leaf - I suppose a similar thing is the air sacs you see on sea weed?

[Clanad]

Here in the U.S. it most likely would be Oak leaf galls. Insects lay eggs into the leaves, especially at the junction of the leaf and the stem...

[Graham-W]

Anything like these? http://en.wikipedia.o...pearance_of_the_galls

[Whickerman]

I think possibly we're on the rigjht track, but not there yet. I can start searching now - sounds like the 'galls' although they're bigger than the ones on that page. Thanks a million