- Color: red-brown; pronotum (i.e., shield like area behind the head) has a dirty-yellow band around its edge.
- Size: 1 3/8 to 2 1/8 inches.
- Fully developed wings which completely cover the abdomen.
- Egg capsule (ootheca) purse-shaped, dark red-brown, 3/8-inch long, typically eight eggs per side.
Habits of Cockroaches:
- Female produces nine to ten egg capsules each of which contains from 14 to 16 eggs.
- Development (egg to adult): approximately 600 days.
- Adult females live an average of 440 days; males about 200 days.
- Large populations accumulate in secluded locations because of their long life span.
- They typically are found in sewers and commercial facilities, e.g., groceries, prisons, restaurants, hospitals, and office and apartment buildings.
- They prefer warm, damp locations, e.g., steam tunnels and boiler rooms.
- They are strong fliers which easily migrate from building to building.
- In the summer, large numbers accumulate in outdoor locations, e.g., in dumps, alleys, and yards, and in the fall, migrate into surrounding structures.
- They prefer fermenting foods.
Damage From Cockroaches:
- They are potential mechanical transmitters of many bacterial, fungal, viral and protozoan diseases primarily through contamination of food preparation surfaces.
- Their body parts, excretions and secretions can cause allergies, asthma and hypersensitivity reactions especially in children.
- Egg capsules glued in protected locations.
- Fecal deposits and brown secretory deposits.
- Strong musk odor indicative of large population.
- Potentially-infested products brought into structures.
How to Control and Kill Cockroaches:
- Cardboard and plastic sticky traps should be used to pinpoint sources of cockroach infestation and to monitor areas of suspected infestation.
- Visual inspections should be conducted at night using a flashlight.
- Sources of food, water and harborage essential for their survival should be eliminated.
- Clutter should be minimized because large cockroaches like to hide in stacked boxes, cartons, rolled carpeting and stored paper and cardboard materials, especially in dark, damp locations.
- Vacuum cleaning can be used to physically remove exposed cockroaches.
- Moisture sources should be eliminated by repairing leaks, improving drainage, and installing screened vents in order to increase airflow.
- Caulk should be used to eliminate harborage and prevent entry into structures, e.g., especially eliminate cracks at which sinks and fixtures are mounted to the wall and/or floor; around all types of plumbing, baseboard molding and corner guards where shelves and cabinets meet walls and door frames; and cracks on or near food preparation surfaces. Cockroach access routes from wall voids into occupied spaces should be sealed with caulk or grout, especially around plumbing and electrical fixtures.
- Basement floor drains should be protected with screens or basket inserts and cleaned regularly.