[Mr. Douglas]

Simple solution:
Permathrin

https://www.amazon.com/Permethrin-36-8-permethrin-Quart-6666105/dp/B0048EY6KY/ref=sr_1_1?ie=UTF8&qid=1498084237&sr=8-1&keywords=permethrin

[Semper911]

Simple solution: Permathrin

Unless you have cats. It is safe for kids and dogs, but it kills cats.