Behavior, Diet & Life Cycle
Cockroaches are nocturnal arthropods (invertebrates) that are mainly active at night. During the day, they hide in cracks and crevices, which can be as small as a few millimeters in size. They tuck themselves into electrical outlets, appliance motors, and gaps between shelving in restaurant kitchens, canteens, and apartments.
As omnivores, cockroaches eat virtually any organic material, including crumbs, grease, soap, and dead insects, and can thrive in diverse environments, from food processing plants to medical labs. They are incredibly resilient, surviving a whole month without food, but typically only a week without water.
Cockroaches reproduce rapidly. A single female can produce hundreds of offspring in one year. Eggs are stored in protective casings (ootheca), hidden behind equipment or inside wall cavities. When nymphs emerge, they molt several times before reaching adulthood. The entire lifecycle from egg to adult can be as short as two months, depending on environmental conditions.
This rapid lifecycle, combined with their ability to remain concealed, makes them especially challenging to get rid of without professional help.