My okra plants are being eaten so badly by the bugs, they are becoming
defoliated, and I'm not sure I can get them to live long enough to grow big
enough to resist this onslaught.

I've used slug pellets to stop the slugs, and it does not seem to be slugs.
Slugs leave slime trails, and the pellets have never failed to stop them
before. I see no slime trails, nor dead slugs.

I've used Neem, which works with other plants the bugs find tasty, but it
does not help.

Out of desperation, I tried some sevin dust, and not even that seems to
stop the damage.

How can I protect these plants from whatever is eating them? I thought it
was slugs because of the big holes in the leaves, but i'm not sure if it is
just a lot of little bugs eating everything that is there. What can I do to
prevent these plants from being devoured?