PyGanic 1% Pyrethrin Dust will kill bedbugs. As with almost all dust formulations, it can take about a week for the bedbugs to die after they come into contact with the product, so dusts should not be the only thing you use for bedbug infestations. According to the PyGanic 1% Pyrethrin Dust product label:
Take bed apart. Apply PyGanic Dust using a hand duster into joints, channels, cracks and crevices on bed frame, headboards and footboards. Wall mounted headboards and their hardware should be removed and treated. If hollow, square or round tubing, see that the interior framework is well dusted. Mattresses and box springs may be dusted, especially tufts, folds and edges. All furniture and furniture accessories in the room must be treated. Pull carpeting from tack strips and treat under the baseboard, sill plate and under the carpet tack strips. Treat under, behind, and into cracks and crevices of decorative moldings. Apply a continuous visible film to other potential harborage sites: table and wall mounted lamps, wall crevices, electrical boxes, outlet plate covers, switch plate covers, mirrors, picture frames and backs, door jambs, moldings and hinges, window ledges, sills, drapery rods, curtains, blinds and mounting hardware, closet shelving and hardware, picture frame moldings and other crack and crevices in the room should be treated. If Bed bugs are present, treat with an Insecticide approved for use on bed bugs."