American Cockroach

According to the biology of the American cockroach, what is the approximate lifespan of a female under good conditions?

• 600 days
• 10 months
• About 15 months ✓
• One year

Answer: Reaching adulthood takes about 600 days, and Penn State reports a female can live up to about 15 months in good conditions.

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An applicator is inspecting a property for American cockroach activity. At what time of day is it most effective to conduct this inspection?

• At night, because they avoid light by day ✓
• At noon, when light levels are highest
• During the early morning
• During the day, when they are most active searching for food

Answer: Inspect at night, when this light-shy roach is on the move.

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When differentiating the American cockroach from the oriental cockroach, what key difference is noted?

• The American cockroach is almost black, while the oriental is reddish-brown
• The oriental cockroach is reddish-brown with a pale margin, while the American is almost black
• The American cockroach is almost black, whereas the oriental is reddish-brown with lighter edging on the pronotum ✓
• The American cockroach is wingless, while the oriental is fully winged

Answer: The oriental cockroach is the easiest to rule out: UC IPM describes it as almost black, whereas the American is reddish-brown with lighter edging on the pronotum.

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Which of the following is a recommended prevention strategy for controlling American cockroach populations?

• Using insecticides as the primary method for a lone outdoor stray
• Applying heavy sprays to all indoor surfaces daily
• Sealing cracks around doors, windows, and utility lines ✓
• Eliminating all organic matter in the neighborhood

Answer: Because this species pushes in from outside, seal cracks around doors, windows, and utility lines and correct dampness near the pipes and drains where it shelters.

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What is a documented health risk associated with the shed parts and feces of the American cockroach?

• Direct transmission of asthma
• Allergens that can cause rashes, watery eyes, and nasal congestion ✓
• Skin infections from contact with the pronotum
• Respiratory distress caused by the musty odor

Answer: UF/IFAS reports that the roaches shed feces, cast skins, and body parts such as antennae and legs that act as allergens, leaving sensitive people with rashes and other reactions; Penn State likewise counts asthma among the responses to cockroach excrement and shed skins, alongside watery eyes, nasal congestion, and sneezing.

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Which physical characteristic is described as the surest field mark for identifying an adult American cockroach?

• An almost black body color
• A shield behind the head (pronotum) with a pale tan-to-yellow margin ✓
• A small, wingless body with no wing pads
• A bright yellow stripe running down the center of the back

Answer: The surest field mark is the shield behind the head (the pronotum), edged with a pale tan-to-yellow margin.

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What is the recommended first step in an Integrated Pest Management (IPM) program for this species, according to UC IPM?

• Immediate application of liquid insecticides
• Sanitation, exclusion, and monitoring ✓
• Applying dusts to all cracks and crevices immediately
• Massive application of outdoor baits

Answer: UC IPM anchors control in sanitation, exclusion, and well-placed baits and dusts.

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Based on the provided text, how does the American cockroach primarily cause food safety concerns?

• By acting as a proven direct disease carrier
• Through the consumption of human food in kitchens
• By fouling food and utensils, leading to contamination ✓
• By secreting toxic enzymes that poison organic matter

Answer: Texas A&M is careful to say the species is not a proven direct disease carrier, but it does foul food and utensils, making contamination the practical hazard.

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