I can't bring my place up to 120 degrees.top dog said:Heat is by far the most effective treatment. Sprays really don't work all that well.
There's a $1500 contraption, about the size of a closet, that lets you put your clothes and furniture in it in batches and heat it to 140 degrees. But that's a lot of dough, and it won't get the eggs hiding behind the electrical outlets or wherever.
Sprays generally don't work.
The diatomaceous earth, however, really is supposed to work. If it gets on them, it lacerates the waxy outer layer of their exoskeleton and they dehydrate and die. The catch is that they have to crawl through it to get it on themselves, so unlike heat, it won't kill eggs. You therefore can't just use it once and be done with it. You've got to have it spread around on the floor for a full year and a half (which is apparently how long it takes some of the eggs to hatch).