Don't spray pesticides in your home. If you do it yourself, use less toxic methods like soaps, baits and traps. If you hire someone, choose a certified specialist in Integrated Pest Management. Find one at greenshieldcertified.org/. Green Shield Certified is an independent, non-profit certification program that promotes effective, prevention-based pest control while minimizing the use of pesticides.
Ask your neighbors to avoid using pesticides on their lawns, so they don't accidentally cause harm to children or pets in the neighborhood.
Find out what pesticides are used at your child's school, at the park and in the playground. Ask the school district and the county to switch to Integrated Pest Management methods. Give them the tools they need at http://www.ipminstitute.org/school.htm.