scuwp: Ripcord.  Get it from any good hardware store.  Same stuff the pro's use (so I am told).  I spray our house every spring, all insects disappear and don't come back for at least 6 months. 

nolanz: +1 for Ripcord
l
Usual hardware stores sell it as an emulsion, but horticultural shops sell it in a more expensive liquid in a  tin which works out much cheaper per application.

joker97:

nolanz: +1 for Ripcord
l
Usual hardware stores sell it as an emulsion, but horticultural shops sell it in a more expensive liquid in a  tin which works out much cheaper per application.

how does one apply the emulsion?

was hoping for a spray and walk away type

Important.Evacuate premises to be sprayed. The premises may be re-occupied as soon as spray applications are dry. Before spraying remove pets and cover or remove fish tanks and bird cages. Do NOT spray on or allow spray to land on personal contact items e.g. clothing, footwear, towels or bedding.

Handling.This product must be under the personal control of an APPROVED HANDLER when applied in a wide dispersive manner or used by a commercial contractor.

Personal Protection. When mixing and preparing spray, wear cotton overalls buttoned to the neck and wrist, a washable hat, suitable gloves, and goggles or a face shield.

scuwp: Ripcord.  Get it from any good hardware store.  Same stuff the pro's use (so I am told).  I spray our house every spring, all insects disappear and don't come back for at least 6 months.