We are growing several things in pots on the deck this year.
Everything is doing very well (tomatoes, various peppers, and one pot
of basil). Within the last week, the basil has become covered with
Japanese beetles. Just the basil, nothing else.

I remember something called Bag-A-Bug that my parents used years ago,
and it seemed to work pretty well. But I can't find it anywhere.

What can I use to get rid of these nasty beasts?