Daisy writes
While they are actually very different products, they do pretty much the same job. Pyganic dust is made from pyrethrins and silica gel and MotherEarth D is diatomaceous earth (crushed diatoms). Pyganic dust would need to be reapplied every 6-8 months while MotherEarth D would only need to be reapplied if it were to get wet. Pyganic dust does have a bit of a faster knockdown.
Answer last updated on: 11/28/2010