What is eating?

My Fatsia Japonica can't see any signs of slugs

 

I planted a few Fatsia recently, aswell as a fatsia spiders web on friday ... they are all in the same garden, and show no damage to the leaves

from what I read, they sometimes get 'shot hole disease', but then you will have brown spots on the leaves aswell

it could be caterpillars (check the undersides of the leaves) .... perhaps Provado may help, but I'm just guessing