Environmental Impact & Regulations 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 Environmental Impact & Regulations flashcards as text
Which document must an applicator consult to determine the required pre-harvest interval (PHI) before treating a food crop?
Answer: The pesticide product label
The product label specifies the pre-harvest interval, which is a legally binding restriction on when treated crops may be harvested.
Integrated Pest Management (IPM) reduces environmental impact primarily by:
Answer: Using pesticides as a last resort after other control methods have been evaluated
IPM minimizes pesticide use by combining cultural, biological, mechanical, and chemical tactics, using chemicals only when thresholds are exceeded.
Spray drift is most likely to increase under which weather condition?
Answer: Low wind speeds with high temperature inversion
Temperature inversions trap fine droplets near the ground, allowing them to drift horizontally for long distances even in light air.
Which federal agency is responsible for enforcing pesticide residue violations on food in interstate commerce?
Answer: Food and Drug Administration (FDA)
The FDA enforces pesticide residue tolerances on most domestic and imported foods, while USDA covers meat, poultry, and egg products.
An applicator notices bees foraging on a crop scheduled for pesticide treatment. The best course of action is to:
Answer: Delay the application until bees are not actively foraging, typically at dusk or dawn
Applying when bees are not foraging (early morning or evening) greatly reduces pollinator exposure and mortality.
The Clean Water Act's National Pollutant Discharge Elimination System (NPDES) requires a permit for pesticide applications that:
Answer: Discharge pesticides directly to navigable waters or their adjacent wetlands
The NPDES Pesticide General Permit is required when applying pesticides directly to or over navigable waters and wetlands.
Which of the following best describes the concept of 'resistance management' in pesticide regulation?
Answer: Rotating between pesticides with different modes of action to prevent pest populations from developing immunity
Rotating modes of action prevents selection pressure that leads to resistant pest populations, preserving chemical efficacy long-term.