Doktor Doom Spider Mite Knock Out Pint (12/Cs) Doktor Doom® Spider Mite Knock Out® is a 0.20% pyrethrin formula. This formula is 19 times stronger in active ingredient pyrethrin than any soap based insecticides and 10 times stronger than any formulations that contain Pyrethrin & Piperoynl Butoxide. Piperoynl Butoxide is a synergist which enhances the killing power of Pyrethrin and it is not approved for organic gardening. Doktor Doom® Spider Mite Knock Out® kills the pests on contact with just a light misting on the foliage. Apply the Doktor Doom® Spider Mite Knock Out® to the underside of the leaves and then fog the room with a Doktor Doom® Fogger. Volume (cf) = 0.044, Dim Weight (in3/lb) = 0.3897, Weight (lb) = 1.3500, Length (in): = 2.7, Width (in) = 2.8, Height (in) = 10, CaseVolume = 0.6483, Case Dim Weight = 5.7743, Case Weight = 16.80, Case Length = 11.60, Case Width = 8.70, Case Height = 11.10,