What's eating the leaves?

I have a number of plants and veggies where something is eating tiny holes in the leaves - blackcurrants, foxgloves, gooseberries, hollyhocks etc. What is it and how do I stop it?

 

Caterpillars possibly? Not sure if there's any really effective control.

 

I have the same problem and it turns out to be caterpillar's, to be honest i am quite happy, there not killing the plants and i enjoy watching the moths fly around ever night on cctv its the kind of activity ive been aiming for, now slugs and snails are a different matter .

 

Thanks. I will have a look to see if I can spot any caterpillars on them. I need to spray something on the plants quick as the leaves are starting to look like net curtains.