When you understand how cockroaches operate, you quickly realise why you need to get rid of them straight away. Cockroaches foul their environment with faeces or castings and with regurgitated food, and they move indiscriminately from their filth to food and back again. They will eat anything from food fragments, to paper and cardboard and even fabric. They taint materials with their characteristic ‘musky, oily’ smell and even the air in infested premises may contain fragments of their excrement. The potential for the spread of pathogens such as salmonella and other diseases is obvious and it’s no surprise that their presence causes great distress. We won’t go further (although we could!) but the bottom line is that if you have cockroaches, you need to get rid of them and you need a professional pest controller to do the dirty work.