Diseased oak?

[Shaunlew]

my father is an elementary school principle, and started an outdoor classroom project quite a few years back..so although this isn't necessarily pertaining to bonsai I figured someone could help us out..

Attached are a few pics of some oaks that are clearly infected with some sort of insect. My dad claims they're all red oaks, but if you look at the leaves they are clearly different (lobes and veins in particular). Our question is what insect is tearing these oaks up? Also, the bark in the two oaks are completely different, he seems to think that the insect infestation has mangled up the bark..the trunk/bark pics are of the two oaks (obviously), the infested one has the rough bark while the less infested one has the normal smooth bark.

Any insight as to what is going one would be greatly appreciated and helpful!

 

[jk_lewis]

They both look to be in the white oak group. Bark varies between species; I doubt the insects affected the bark. The leaf seems to have been hit by leaf miners; they'll do no real damage to the tree.

 

[aml1014]

There is also a small group of aphids on thag first photo

 

[Cypress187]

They are most defenitly not human.

 

[coppice]

Only 6/6 looks like a red oak to me.

 

[Cotyledon]

I don't see any red oak leaves there. The leaves are eaten by oak worm maybe some jap Berle chewing

 

[GrimLore]

In these parts that is what it looks like after a rather large spawn of Japanese beetles. Never have seen any disease do that.

Grimmy