Dusting Dubia Roaches?

Just wondering if you all dust your dubia before feeding them off. I've been dusting mine with calcium like I would with crickets, but is it necessary?
I feed my roaches, Apples, Oranges, Carrots and Roach Coach.

Yes, I dust mine just like I dust the crickets. I only dust with D3 every week to every other week and multivitamin every week to every other week.

I will dust other days with just Calcium dust.