How to kill mites & spiders

Updated February 21, 2017

Most spiders and mites are not dangerous, although they can be pests in the home and garden. Spiders are beneficial outdoors because they catch and kill insects, but not desired indoors, where spiders will build webs over lamps and in corners. Some mites can be a problem because they cause skin disease on humans and animals. Spraying with chemicals is a common treatment, but many people are sensitive to these chemicals and desire other methods to remove and prevent spiders and mites.

Remove the spiders and mites in your home by cleaning. Removing any dust will get rid of the environment for dust mites. Vacuum up spider webs, as the webs will also contain the egg sacs for new spiders. While this may not kill the spider, it removes the spider's home and prevents any new spiders from coming into the home from the egg sac.

Spray a solution that contains 5 per cent white vinegar and 1 teaspoon of coconut oil or peppermint oil to areas that frequently are home to mites and spiders. Spiders do not like vinegar, coconut or peppermint and find the essential oils toxic. Spiders will stay away from any area you spray. You can also use a solution of borax, but do not spray the borax onto plants because it will kill them. Vinegar solutions are best for plants that have spider or mite infestations.

Sprinkle medicated body powder or talcum powder into window boxes or around walls to prevent spiders from entering the home.

Place spider and mite traps around the home. If a spider enters the house, the trap will attract the spider. Once the spider enters the trap, it cannot get out and the poison in the trap will kill the spider. Mite traps work by using glue and sticky tape. When the mites touch the trap or tape they stick to it and can't get away.

Install dehumidifiers to remove moisture from the air. Spiders and mites do not like dry environments and will quickly leave areas that are overly dry. A dehumidifier is the easiest way to remove air moisture without having to remodel your ventilation system.


Pest control professionals can spray chemicals around the exterior of the home to prevent spiders and mites from entering the home.

Things You'll Need

  • Vacuum cleaner
  • White vinegar
  • Coconut or peppermint oil
  • Borax
  • Talcum powder or medicated body powder
  • Spider and mite traps
  • Dehumidifier
Cite this Article A tool to create a citation to reference this article Cite this Article

About the Author

Liz Tomas began writing professionally in 2004. Her work has appeared in the "American Journal of Enology and Viticulture," "BMC Genomics" and "PLoS Biology." She holds a Master of Science in food science from Cornell University and a Bachelor of Science in biochemistry from the University of New Hampshire. She is pursuing her Ph.D. in oenology at Lincoln University.