Dubia CANNOT infest a house unless you are keeping it 85-90 ALL the time with REALLY good (read mid-to midhigh) humidity. The average house has 20% humidity definitely NOT enough. Unless you live in California, georgia, mississippi, louisiana, or florida its nigh unto impossible, and even in all but a small section of florida still extremely difficult for it to happen. They are NOT German roaches or American Wood Roaches which can thrive in a wide range of climates. Have your mom read about them. Print off tons of info and have her call a LOCAL exterminator and tell them Blaptica Dubia Roaches as the name (pretty sure that is right) they will tell you you can NOT get infested with these. They are a Tropical bug.