Life Cycle: Eggs are laid in egg cases with about 38 eggs per case. The adult female drops each case close to food, 1-2 days before the eggs hatch. Mating only once, the adult female can produce up to 7 of these case in a lifetime. The nymph (immature cockroach) moults or sheds its skin 5-7 times before it reaches maturity. The life span of an adult is 125-150 days.
Behaviour: The German cockroach develops rapidly under suitable conditions preferring a warm and moist environment. Consequently, it is a frequent pest in kitchens, food storage areas and bathrooms.
Signs of Infestation: Harbouring sites (places where the cockroach hides and rest) include crevices behind sinks, beneath counters, under kitchen equipment, motor compartments, within electrical fuse boxes, inside telephones and under broken plaster.