Potato foliage with holes!

[datz]

Any ideas anybody? Can't see any bugs on the leaves but something is definitely having a munch.



Thanks

[Richard Eldritch]

Only my spud at the front of my house have suffered this and they have ants on them. I couldn't see any other pests aside from the black aphids that the ants farm. They're second earlies and ready anyway so not to bothered.