Ditch the dangerous, conventional pesticides laced with synthetic poisons that are linked to immune-system disorders, hormonal disruptions, fetal defects, and many cancers. Natural pesticides and repellents are available at most stores, but you can easily make your own.
Boric acid or Diatomaceous earth (can be found at gardening centers) are safe and effective against ants and cockroaches. Sprinkle it around baseboards, under sinks and any other areas they hang out in.
Ants are also deterred by spearmint, peppermint, cayenne pepper, clove and cinnamon.
Fend off flies with sweet basil or clover and fleas with citrus oils, garlic or cedar. Citronella, neem and eucalyptus oils ward off mosquitos.
These are just a few remedies for pests. For more information on natural alternatives to pest control, check out these sources:
Earth Easy
Care2
Planet Natural
Pest Information
* From "Nine Things to Kick Out of the Kitchen" by Michael Witeman-Jones in Boulder County Home & Garden Magazine Fall 2008
