A cockroach sighting rarely means just one. German cockroaches, the most common species in Ontario, produce an egg casing of 30-40 eggs every three weeks, turning a small kitchen problem into a full infestation within months. They also spread bacteria, contaminate food, and trigger allergies and asthma. Barrie Pest Control has handled cockroach removal across Simcoe County and the GTA for 15 years, treating every life stage, not just the roaches you can see.