Moth is my enemy in the garden

I have lemon seedlings in pots. One morning I was disappointed to see the young leaves were gone. Oh, I found a larva and another. When I thought about it, the moth was laying eggs on big leaves and when the eggs hatch the larva from the egg would feed on the young leaves. Nice for them but bad for me.

Now I check on the seedlings every day. When I see a larva I have to remove it before it feeds on the young leaves. Fortunately the seedlings are grown now.