Pest Identification and Management Flashcards
7 cards from real CPA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Pest Identification and Management flashcards as text
A citrus grower observes cottony white masses on twigs that do not move when disturbed. These are most likely:
Answer: Mealybugs or cottony cushion scale
Mealybugs and cottony cushion scale produce waxy, cottony secretions on twigs and stems; unlike lacewing egg masses, they are firmly attached and colonial.
Which of the following is a key behavioral difference that helps distinguish Norway rats from roof rats when conducting a rodent inspection?
Answer: Norway rats are burrowers near ground level; roof rats prefer elevated harborage above 18 inches
Norway rats burrow and nest at or below ground level, while roof rats are agile climbers that nest in elevated locations such as attics, trees, and rafters.
The presence of frass (insect excrement) shaped like tiny pellets found in a window frame most likely indicates:
Answer: Drywood termite activity
Drywood termites push pellet-shaped frass (hexagonal, six-sided) out of kick-out holes in infested wood, unlike subterranean termites which do not produce visible frass pellets.
Which management approach uses crop rotation as a primary tool to reduce pest populations?
Answer: Cultural control
Crop rotation is a cultural control practice that disrupts pest life cycles by removing the host plant from an area, reducing soil-dwelling pest populations over time.
A pest manager discovers mud tubes running up a foundation wall. This is diagnostic for:
Answer: Subterranean termites
Subterranean termites build mud tubes (shelter tubes) made of soil and saliva to travel between the soil and wood while maintaining humidity and protection.
The economic threshold (ET) for pest management is set slightly BELOW the economic injury level (EIL) because:
Answer: Control measures take time to work, so action must begin before the EIL is reached
Because pesticides and other controls require time to reduce pest populations, action must be triggered before the EIL is reached to prevent economic damage.
Which of the following best describes a 'resistant variety' as a pest management tool?
Answer: A crop cultivar that tolerates, avoids, or is antibiotic to pest attack, reducing damage or pest populations
Resistant varieties express host-plant resistance through tolerance, antixenosis (non-preference), or antibiosis, reducing pest establishment, reproduction, or damage.