How to Kill Fruit Flies on Houseplants

Written by meg butler
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How to Kill Fruit Flies on Houseplants
Keep flies away from your houseplants with a simple trap. (Jupiterimages/BananaStock/Getty Images)

Fruit flies are a notorious nuisance. They take up residence on fruit and houseplants in inappropriate numbers. And every time you walk by, they fly up in frustrating swarms. Luckily, these pests are relatively easy to kill. Although persistent, they are not very bright. Construct a simple fruit fly trap and set it near your houseplant. The fruit flies will fall in and kill themselves without the need for noxious pesticide sprays or messy clean up.

Skill level:

Things you need

  • Small container
  • Cling film
  • Rubber band
  • Pen
  • Beer

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  1. 1

    Pour an inch or so of beer into the container.

  2. 2

    Place cling film over the mouth of the jar. Depress the centre of the cling film with your finger so that it descends into the jar roughly 1 inch above the beer to create a funnel.

  3. 3

    Secure the cling film around the mouth of the jar with a rubber band.

  4. 4

    Poke a tiny hole in the plastic bag with a pen tip. Make the hole no wider than 1/8 inch.

  5. 5

    Place the trap next to the infested houseplant's pot. The fruit flies will fly in to drink the fermenting beer, but will not be able to fly out.

Tips and warnings

  • The fruit flies in your home were most likely lured there by overripe or rotting fruit. Discard them out of doors to prevent another infestation, or place another fruit fly trap next to the fruit bowl.

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