The reason you would follow steaming up with dusts or other products is because steam will only kill the bedbugs that are there at the time of the treatment, it does not leave a residual and will not kill bugs that are not directly contacted by the steam. Alpine dust has Dinotefuran plus diatomaceous earth. This combination of ingredients will give you a quick knockdown plus a long lasting residual. The following are the directions of where and how the Alpine dust can be applied:
"Apply to cracks and crevices where evidence of bed bugs occurs. This includes bed frames, box springs,
inside empty dressers, clothes closets and carpet edges, high and low wall moldings and wallpaper edges. Do not use this product on mattresses, pillows, bed linens or clothes. Remove all clothes and other articles from dressers or clothes closets before application. Reapply as necessary. Direct contact with dry dust is required to be effective."
If Alpine Dust is used as directed, it is safe for use around pets, including cats. Be sure to keep pets out of the area until the product has settled completely into the carpet, furniture, or other areas where it is being applied. Dinotefuran, the active ingredient in Alpine Dust, is a newer non-repellent active ingredient that the EPA has granted Reduced Risk status for public health use. Dinotefuran is part of the insecticide class neonicotinoids, neuro-active insecticides that are modeled after nicotine. Dinotefuran is a central nervous system inhibitor that takes effect after insects ingest it.
Alpine Dust is a great product to apply to voids and cracks and crevices for many insects including spiders. We also suggest applying the products in our Spider Control Kit as the dust is a slow kill but a a long lasting residual to the listed areas. Please take a few moments to review our treatment article on How to Get Rid of Spiders.
If you are looking to treat inside and outside for fleas, you should definitely get our indoor/outdoor flea kit. It comes with an excellent product called onslaught, which is great for both outdoors and indoors. It is also very safe around pets and has a long residual. Also in the kit is an IGR called Martins IGR. It is photo-stable up to 14 days which is about as long as you will find for an IGR that will be outside. Of course you should mix both together in the same tank and apply at the same time both outside and inside.
Here is a link to the indoor/outdoor flea kit: http://www.domyownpestcontrol.com/outdoor indoor-flea-kit-p-1349.html
Please let us know if you have any further questions.
While there would not be any issue with Alpine Dust and CimeXa being used together it would really be a waste of product as either one would work well on its own and they do the same thing. Both are safe when used as directed: children and pets should be out of the area during treatment. You will only need to use a small amount of dust; if you can see it, so can the insects and they can then avoid the area.
Alpine Dust could be used in place of DeltaDust but with roaches baits are the most effective part of treatment or using a spray such as Phantom that works like a bait in that it has a transfer effect back to the colony. All the sprays/dusts you have used only kill those that contact a treated area or that are sprayed directly (pyrethrin/PBO). It can take weeks/months to completely eliminate a roach infestation especially in a commercial setting where food/water could be available, so proper santitation and good housekeeping are a key part of treatment. We have a guide here that can help as well.
The shelf life of Alpine Dust as with most products is about 5 years if stored properly in a temperature-stable, cool and dry environment. While the Dinotefuran in the Alpine may break down over time, essentially as long as the DE in it stays dry it could be effective longer.
We would recommend to dust the attic with Alpine Dust. Alpine Dust will NOT excite the bees. You want to make sure to apply Alpine Dust where you have seen activity. Best time to apply is earlier morning or later evening.