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Sample questions
According to the text, why can German cockroach infestations run essentially year-round?
- They are highly sensitive to outdoor seasonal changes.
- They move between indoor and outdoor environments frequently.
- They breed continuously with many overlapping generations at any moment.
- They are driven by the outdoor calendar rather than indoor conditions.
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Since indoor conditions... drive its activity... and since indoors it breeds continuously with many overlapping generations at any moment, infestations run essentially year-round.🔗 Source
When identifying an adult German cockroach, which morphological feature is used to distinguish it from the brown-banded cockroach?
- The presence of two clear parallel bands running the full length of the pronotum
- Pale yellow bands set crosswise over the base of the wings and the abdomen
- The ability to fly well in indoor environments
- A small, oval shape with a much darker brown to black color
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Adults carry two clear parallel bands that run the full length of the pronotum, whereas the brown-banded cockroach shows pale yellow bands set crosswise over the base of the wings and the abdomen.🔗 Source
In terms of pest management triggers, what is the recommended threshold for starting monitoring or baiting for German cockroaches?
- When an infestation is confirmed in a multifamily housing unit.
- When egg cases or droppings are observed in shipments.
- When a single cockroach is found.
- When multiple overlapping generations are present.
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For indoor monitoring, the trigger is set intentionally low — even a single cockroach is enough to justify starting baiting and monitoring.🔗 Source
According to the provided text, how do German cockroaches typically enter a residential building?
- They wander in from the outdoors on their own.
- They are carried indoors by people.
- They emerge from the soil through cracks in the foundation.
- They fly in through open windows and doors.
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They don't wander in from outside — they get carried indoors by people and survive only indoors.🔗 Source
Which insect is noted as being the easiest to confuse with the German cockroach, but is distinguished by its ability to fly well and its outdoor habitat?
- Brown-banded cockroach
- Asian cockroach
- Ectobiidae
- Blattellidae
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The Asian cockroach (Blattella asahinai) is the easiest to mix up... unlike its relative it flies well, and it lives outdoors in shaded mulch or compost.🔗 Source
Which of the following describes the reproductive biology of the German cockroach?
- The female lays eggs in cracks and then leaves them to hatch independently.
- The species has a single generation per year due to seasonal changes.
- The female carries the ootheca (egg case) until the eggs are about to hatch.
- The insect progresses from egg to adult in approximately 50 days.
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Each egg case holds roughly 30 to 40 eggs, and the female carries it — the ootheca — until the eggs are about to hatch.🔗 Source
Which of the following is mentioned as a sanitation practice to prevent German cockroach infestations?
- Sealing cracks and closing gaps around wall-mounted electrical panels.
- Keeping food scraps in containers with tight-fitting lids.
- Vacuuming or wiping away individual roaches.
- Using adhesive-coated cardboard traps near harborages.
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For homeowners, sanitation does most of the work: don't let dirty dishes pile up in the sink overnight, and keep food scraps in the refrigerator or in containers with tight-fitting lids.🔗 Source
An applicator is treating an infestation and wants to use an Insect Growth Regulator (IGR). What is the primary mechanism of an IGR?
- It kills adult cockroaches on contact.
- It acts as a bait that cockroaches consume to die later.
- It prevents immature cockroaches from developing normally into reproducing adults.
- It serves as a repellent to keep cockroaches away from food sources.
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Insect growth regulators (IGRs) keep immature cockroaches from developing normally, so they never reach reproducing adulthood.🔗 Source
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