Almost anywhere you live there are lots of opportunities for insects and pest to enter your home. There may be different types of insects based on the climate and soil conditions of where you live. It is a good practice to determine the typical kinds of pests in your neighborhood and what products will eliminate them or prevent them from entering the home. Some people spray around their home themselves, while many others hire a pest control service to minimize insects around and in the home.
Spraying instructions depend on the product you use. Many of them are designed to spray the outside perimeter of the home to kill and prevent insects and pests from entering the home.
There are lots of different products to buy depending the kind of insects you are dealing with. Many people also looking for more organic pesticides. It is best to decide what is best for you and your home.
Here is a generic example of making your own pest spray from eHow.