Well I have some new treatments that work great. First seal every crack and hole in your house near the foundation. Hard I know but that's the first thing.
Then pull all the mulch back from the foundation 1 inch so that the soil is exposed. Go to the local pool store and get some Diatomaceous Earth. Diatomite is also used as an insecticide, due to its physico-sorptive properties. The fine powder absorbs lipids from the waxy outer layer of insects' exoskeletons, causing them to dehydrate. This also works against gastropods and is commonly employed in gardening to defeat slugs. It is most commonly used in lieu of boric acid, and can be used to help control and eventually eliminate a cockroach infestation.
For a trap outside place soy sauce or beer and a tsp. of fish or Veg oil in a glass bowl. Put a couple of sticks as access ramps and cover w/ some card board leaving a 1/4" or so open and place is a shady area where you are having the issue. You will find tons in there. Also you can put 2 tsp of cheap Palmolive (the green kind) 2 oz of mouth wash (Listerine) a can of coke and a can of beer in a garden sprayer and spray the area you think they are coming in. The soap will make them sick and the Listerine will too. The coke and beer are there for the plants helps green things up and will promote Bactria growth. If they are coming in your house its because is is damp and cool. Cool good, damp bad, turn on the dehumidifier or get your air cond. serviced. ... View related article.
