Oriental Cockroach

Regarding the sex differences in Oriental cockroaches, which of the following is true?

• Males are wingless while females have short wings
• Both sexes are able to fly to find mates
• Males have short wings that fall short of the abdomen tip, while females are essentially wingless ✓
• Both sexes can scale smooth vertical surfaces

Answer: Males have short wings that fall well short of the abdomen tip; females are essentially wingless, resembling overgrown nymphs. Neither sex flies or scales smooth vertical surfaces.

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Which of the following is a recognized health risk associated with Oriental cockroach infestations?

• The transmission of airborne pathogens through skin contact
• Bites that cause localized skin irritation
• Allergen exposure via shed exoskeleton fragments and feces ✓
• Direct venomous stings to humans

Answer: Both the Illinois Department of Public Health and UC IPM tie cockroaches to allergic and asthmatic reactions; Illinois explains that shed exoskeleton fragments and feces act as airborne antigens.

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What is the typical lifespan of an adult Oriental cockroach?

• About two months
• Exactly one year
• From about a month to six months ✓
• Between 18 to 24 months

Answer: Adults live from about a month to six months.

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Which inspection method is recommended for detecting Oriental cockroach populations?

• Placing sticky traps along walls and near drains, plumbing, and moisture sources ✓
• Using light traps near bright food preparation surfaces
• Searching exclusively in dry, high-traffic areas of the home
• Checking only the exterior mulch for activity

Answer: Sticky traps and glue boards best detect populations and pinpoint harborage; place them along walls and near drains, plumbing, and heat or moisture sources.

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When differentiating the Oriental cockroach from the American cockroach, which characteristic is a defining feature of the Oriental cockroach?

• It is larger, measuring around 1½ inches
• It is reddish-brown in color
• It is darker, smaller, and has short- or no-wings ✓
• It is full-winged and can fly

Answer: The American cockroach is larger (around 1ý inches), reddish-brown rather than near-black, and full-winged; the Oriental is darker, smaller, and short- or no-winged.

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How does the development time of the Oriental cockroach compare to that of the German cockroach?

• It is much faster, taking only two months
• It is slower, taking roughly a year to 18 months from egg to adult ✓
• It takes exactly six months to reach adulthood
• It is roughly the same, taking approximately two months

Answer: It is a slow grower: UF/IFAS reports about a year from egg to adult and the Illinois Department of Public Health an average near 18 months — far slower than the German cockroach's two months.

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The Oriental cockroach's egg capsule (ootheca) typically contains approximately how many eggs?

• 16 eggs in two rows ✓
• 7 eggs in a single row
• 30 eggs in a cluster
• 100 eggs in multiple rows

Answer: Eggs ride in a capsule (ootheca) holding about 16 eggs in two rows, taking roughly 42 to 81 days to hatch.

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When managing an Oriental cockroach problem, what is recommended alongside chemical control?

• Increasing indoor humidity to attract them to traps
• Eliminating all light sources in the basement
• Conducive-condition correction, such as repairing leaks and drying harborage ✓
• Only focusing on outdoor mulch removal

Answer: Fold conducive-condition correction into the job — repair leaks, dry harborage, block drains — alongside chemical control.

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