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    3. Is it true that if you spray your vegetable crops with Potassium Permanganate it stops the black fly.
    Is it true that if you spray your vegetable crops with Potassium Permanganate it stops the black fly.

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    0  Views: 756 Answers: 1 Posted: 13 years ago
    Tags: gardening - growing own vegetables such as cabbage kale brocholli etc.
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      1 Answer

      Regarding vegetables treatment, Potassium permanganate is used to kill insects and fungi that harm vegetables. Pyrethrum and bracken spray are used to kill Black flies that harm vegetables.

      13 years ago. Rating: 3
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