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[W.R.Grace] A brand name for an Insecticide primarily composed of amorphous silica. On contact or ingestion, Dri-die powder kills insects by physical dehydration. It is commonly used in the B & S (boric acid and silica) treatment to kill cockroaches.

Synonyms and Related Terms

B & S (boric acid and silica); B + S

Resources and Citations

  • Lynda A. Zycherman, J.Richard Schrock, A Guide to Museum Pest Control, FAIC and Association of Systematics Collections, Washington DC, 1988
  • Marie Svoboda, Conservation Survey Index, unpublished, 1997