• Commercial preparations of diatomaceous earth did as well as the organophosphate in all cases bar one (a beetle called the lesser grain borer in sorghum).

    ECONOMIST: Pest control

  • In collaboration with Zimbabwe's Institute for Agricultural Engineering, she tested diatomaceous earth against a common organophosphate pesticide in three of Zimbabwe's regions, and on three crops: sorghum, maize and cowpeas.

    ECONOMIST: Pest control

  • Diatomaceous earth is a widespread mineral.

    ECONOMIST: Pest control

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