I have had a terrible time with my basil. I do not see any bugs or slugs. Nothing on the undersides of the leaves BUT there are obvious holes from the center of the leaves as well as bites taken out from the edges. I don't know what to do. I have sprayed the leaves hard with a hose. I have treated with a neem spray. Help. None of my others herbs are being eaten.
What might be doing this and how can I stop it?