How to Use Hydrogen Peroxide as Fungicide for Plants

Written by shara jj cooper Google
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Hydrogen peroxide, a multipurpose solution most commonly known for cleaning wounds, also works as a fungicide on plants. Peroxide works both as a preventive measure against fungus and as a treatment for fungus already on the plant. Use peroxide spray twice a week in humid locations or once a week in arid weather. Avoid spraying plants that have damaged leaves or that recently have been transplanted.

Skill level:
Easy

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Things you need

  • Spray bottle
  • 3-percent hydrogen peroxide

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Instructions

  1. 1

    Fill a spray bottle with 3-percent hydrogen peroxide -- the kind easily found at supermarkets and pharmacies.

  2. 2

    Spray one leaf of the houseplant with the solution. Wait one day to see if the leaf reacts negatively to the hydrogen peroxide. Few plants have a problem with the spray.

  3. 3

    Spray the tops and bottoms of the plant leaves with the solution to prevent or treat fungus.

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