Delta Dust (Deltamethrin)

DeltaDust is a whitish powder dust with the active ingredient deltamethrin, an active ingredient which has been used globally for decades. DeltaDust contains 0.05% active ingredient or deltamethrin. The advantage of a dust is that it can penetrate into cracks and crevices and wall voids as well as cling to surfaces both horizontal and vertical. It can also cling to the underside of surfaces.

DeltaDust is registered by the US Environmental Protection Agency by the Bayer Corporation. DeltaDust is available in one and five pound containers.

DeltaDust is typically applied using a dust bulb, either Centro or Getz. Centro looks like a rounded bulb and the Getz duster is cylindrical with bellows. In some cases for large applications, a power duster can be used for large spaces.

DeltaDust can be used for localized treatment of termite infested areas. While DeltaDust has a broad label, meaning that it can be used in a wide variety of locations and for multiple pests, it can target termites, carpenter ants, and carpenter bees. DeltaDust can used to treat voids where termites are present and it can be used as a preventative treatment. When accessing termite infested areas, drilling may be necessary to allow the dust to reach the termite galleries. The label prohibits drilling overhead and subsequent dusting.

For prevention of drywood and Formosan termites, voids may be treated or an attic or crawlspace may be treated at the rate of 0.5 pounds of DeltaDust per 1000 square feet.  The label also requires a followup inspection after six months to ensure that there is no infestation.

Bayer emphatically states on the label that treatment for termites using DeltaDust are supplementary and that DeltaDust is not substitute for inspection and full house treatment using conventional termite control methods.