Our most popular general use product is called Talstar. It is widely used by pest control companies because it is labeled for almost every insect you could have a problem with and you can use it outside the home as well as inside, it is odorless and very safe for use around children and pets. It is a liquid concentrate that you mix with water in a Chapin Premier 2 Gallon Sprayer (#21220). It lasts for 60 to 90 days outside in between treatments. It is also labeled for lawn and ornamental use, and can be used on trees, plants, bushes and shrubs for all sorts of ornamental pests including Japanese beetles, mosquitoes, and other leaf eating pests.
Here is a link to the product for you to read further. There is a video on this page as well that shows you how to do a general pest control application. There are also many customer reviews left by people that have used this product.
If needed, Talstar EZ Granular Insecticide can be used in the yard and recommended application is quarterly. You shouldn’t need to use granules unless you have bug issues in your yard.
The following Get Rid of Millipedes article will give additional suggestions: http://www.domyownpestcontrol.com/get-rid-of-millipedes-a-255.html