I'm wondering what everyone feeds their white's frogs?

I've had mine about a month now and love him! He's a great frog so far and true to the species, a very enthusiastic eater! So far he's had hornworms, earthworms and crickets. But I'm finding the crickets to be a pain. There's a small gap in the lid that a few escaped from and then of course some drown in the water. I'd just as soon not feed him crickets at all.

Would a 'worm only' diet be good? Hornworms, earthworms and maybe super or wax worms occasionally? Would I still need to dust them with calcium/vitamin powder or are any of them already nutritionally complete? I know that earthworms were for my pacman frog, not sure if it's the same for the white's.