I have some plants in my backyards, however some of them are being attacked by bugs - I do not know what are those. I did remove some slugs which I found in the backyard & removed - but this hasn't stopped the holes on my leafs. Here are some examples for the different plants.
Turnip Leaves

I think these are slugs but not sure.
Avacado Leaves

Orange Plant - Fruit + Leaves

If you see carefully on this one, there is some spider web kind of stuff on some of the leaves on this.
Italian Basil

Spearmint

I have been scratching my head trying to identify the bugs behind all this mess in my little kitchen garden :-(
Thanks for all your help!