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How to Kill Aphids on House Plants

By Stanley Matson ; Updated September 21, 2017

One of the most common household pests that can infest your plants is the aphid. Commonly known as plant lice, they are found on the underside of new growths in a plant. They drain the fluids that a plant needs to grow and thus stunt its growth. They are generally small and come in a variety of colors. A person growing house plants should know how to kill them.

How to kill aphids

Take a spray bottle, fill about three-fourths of the bottle with water and the rest with equal amounts of soap and commercial dish detergent.

Separate the plant from all other noninfested plants.

Spray the plant thoroughly with the mixture you prepared in the spray bottle. Let it dry for some time.

After a few minutes, spray the plant again thoroughly.

Remove any aphids you can see with a dry cloth. Keep the plant isolated from all the others for about a week. Repeat steps one through five again.


Things You Will Need

  • Small spray bottle
  • Cup full of water
  • Commercial dish detergent
  • Liquid soap


  • Use clean pots and soil for planting any new plants.
  • Isolate any new plants from all the others and monitor it for signs of pest infestations or diseases. Common symptoms include leaf curling and breaking of fresh leaves.
  • Remove dead flowers and leaves as frequently as you can.
  • Give the plant proper care, air and water. Sometimes this is all you need to prevent pest infestations.
  • You can also use insecticidal soap, which usually kills aphids as soon as it comes in contact. You should apply the soap three times a day.
  • Another material found to have good effect in dealing with aphids is Neem oil. It is completely organic, so its use is encouraged.


  • Always use organic, natural therapies rather than systematic insecticides, which can harm humans.
  • Aphids usually cause superficial damage only. If you go overboard on techniques to kill them, it might hurt your plants.
  • Any plant, once infested, should be completely isolated from all other plants until you are sure that the aphids have been killed. It reduces chances of spreading the infestation.

About the Author


Well, I am a mom of two beautiful boys that I love dearly. Ages 15 and 18. Total opposites, but both highly intelligent, and each, each others bond in life. Outside my children, I enjoy freelance writing. I have been writing for a few years and have just recently begun to freelance. I hope to provide everyone with informative and interesting articles!