
German cockroach
Blattella germanica
- Typical size
- About 1/2 to 5/8 inch as an adult
- Distinguishing marks
- Light brown to tan with two dark parallel stripes on the shield behind the head.
- Where found
- Warm indoor cracks near food and moisture, especially kitchens, appliance voids, cabinets, and food handling areas.
- Infestation signs
- Pepperlike spotting, egg cases, shed skins, and repeated nighttime activity near heat, food, or water.
- Why it matters
- Rapid indoor reproduction can expand a sanitation and food contamination problem before daytime activity becomes obvious.
- When to request diagnosis
- Professional evaluation is recommended when nymphs, egg cases, daytime activity, or recurring sightings are present.
Documented by Oklahoma State University as a prevalent indoor pest.
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