Cabbage loopers on basil

Cabbage loopers on basil

My mother has a little pot of basil in her kitchen and noticed holes appearing in the leaves. She called last night and asked me to look at it when I came over this morning. After inspecting the plant for a minute, I found at least 4 cabbage loopers (inch worms?) munching it. I don't know much about them other than how to identify them and that they make holes in leaves. Can I just pick them off to save the plant (I'm not afraid to touch them), or will more drastic measures be necessary?
Flowers at last!

Flowers at last!

New here!

New here!

Lawn help

Lawn help

Plant Identification

Plant Identification

What is this?

What is this?

My room, lots of pics

My room, lots of pics