Cochroaches are a very filthy insect. The German cochroach is the most challenging to gain control of after they have been allowed to infest. Their dead bodies and feces are extremely hazardous to our health. Especially to our respritory systems. I can't tell you how many times I've had customers that have roach infestations tell me that they feel sick or run down all the time. It is even worse for young children or the elderly causing asthma and upper respitory sickness.