A bit more data on "Sevin Dust".
Originally it contained carbaryl but was reformulated when it was acquired by GardenTech to contain bifenthrin, a pyrethrin variant.
Pyrethrins are derived from the chrysanthemum flower and commonly used as an insecticide. CAUTIONS are needed in their use.
Permethrin is a synthetic form of pyrethrin.
If i understand this correctly using "Sevein Dust" is now much the same as, for example, "Gardstar Garden and Poultry Dust"? (same regarding effectiveness, use precautions, environmental impacts, human & poultry safety)