I've been using Tempo Dust for a couple months or so after reading a study on how this knocked down bed bugs within 24 hours of contact. This was applied to the perimeter of the rooms, base of furniture, legs and frame of beds. There has been some improvement but the bites continue. On the other hand, there was a problem with ants and Tempo has quickly killed off these and all insect pests. For bed bugs I can only give it a 3 but all others a 5.
I've purchased other chemicals here, but this one to kill a yellow jacket infestation under our aluminum siding of our garage, it didn't seem to work like I had thought. Although, I had thought I got to their nest or harboring area maybe the dusting didn't hit where it needed to. Jury is out on this one for me.
Requires a duster. Wear a dust mask when applying. Dust works well, took two applications and a day or so to impact the bees. Received in a box, but top was open and box spilled all over when opened. Quite a mess in all places "the kitchen". Open in a contained area.