diatomaceous earth (de) is a dust composed of fossilized bodies of unicellular algae used as an insecticide. in this study, the insecticidal potential of four iranian de deposits was assessed in adults of oryzaephilus surinamensis (l.). three of de deposits were collected from maragheh, mamaghan, and khorasan jonoobi mines and sayan® formulation was obtained from kimia sabz avar company. the in...
