Liz from Des Moines, Wa writes
*For ant and roach control*
It is not necessary to apply Boric Acid and Cimexa dust in the same area. If you have previously used one or the other and wish to change out the dust that is fine if the other product is vacuumed first. You would apply them in the same types of areas (cracks and crevices and voids).
Answer last updated on: 03/09/2014