Another picture. Most of the leaves affected are closer to this one and not as bad as the first picture but it seems to be almost all of the mature lower leaves on the plant. Not sure if I should cut them all off or if that would be too much for the plant to handle

Mechanical damage. Perhaps hail?

In any event, not a disease or critter.

Definitely not hail. And new cuts have formed since I've had the plant, hasn't been moved or touched which is what made me think it was a pest but I will admit the holes are too thin to match any critter munching leaves I've come across so far...

Most of the leaves are too far apart from each other to be from cutting itself on its own thorns in the wind

Bird?

wind.. high winds flap the leaves around.. and they shred themselves on their own thorns ...

when jean suggested mechanical.. most of us read that to mean.. IGNORE IT ... there is nothing to do..

and as a newbie.. do understand.. that leaves take a heck of a beating over the season.. and do not look martha stewart perfect all year long ...

the leaf is green.. and still functioning.. there is nothing for you to do.. nor worry about..

ken

We have very young blackberry bush which is now showing signs of yellow and brown edging on the leaves. Any ideas?

Here is a link that might be useful: {{gwi:1150830}}

Aredden, in the future, you should start your own new thread with your questions rather than hitch hiking on an older thread. Your question may get lost unless you post your own message.

Anyway, is Blackberry rust a possibility with your plant?