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ACE Prep · Module 2 of 11

IPM Principles

Quick answerUpdated September 24, 2026

What does ACE module 2 cover?

IPM is a decision-making process, not just a product category. This module covers what constitutes an IPM inspection, how thresholds work, non-chemical control tactics, and the unique challenges of pest control in food-handling facilities.

Key factApproximate exam weight: 10%.

Reviewed by LTK editorial team

Must-know facts

  • IPM = Integrated Pest Management. A strategy combining multiple tactics to manage pests at acceptable levels while minimizing risk to people, non-targets, and the environment.
  • Essential IPM ingredients: Know your pest (ID first), set thresholds, conduct inspections, use multiple tactics, gain cooperation.
  • Action threshold: The pest level at which control action becomes necessary. Not 'zero tolerance' — different pests have different thresholds in different settings.
  • IPM inspection goes beyond a sanitation report: looks for pest requisites (food, water, shelter), signs of pests, entry points, and IPM deficiencies.
  • The pest triangle: pest + host + environment. Removing or reducing any side reduces the pest problem.
  • Non-chemical IPM tactics: sanitation, exclusion, harborage denial, pest-proofing, interception, quarantine, environmental alteration, trapping, monitoring, vacuuming, temperature modification, modified atmospheres.
  • IPM control hierarchy (pyramid, least to most disruptive): prevention/cultural → mechanical/physical → biological → chemical.
  • Monitoring tools: sticky traps, light traps, pheromone traps, flushing agents, moisture meters, boroscopes, motion detectors, IR cameras, digital cameras, trained dogs.
  • Food handling facilities: FDA and USDA regulate pesticide applications. GMPs (Good Manufacturing Practices) govern contractor behavior. Third-party auditors (AIB, NSF, etc.) evaluate compliance.
  • Pest-proof design: building design that denies pests access, harborage, and resources before they enter.

What the exam likes to ask

  • If an answer starts with 'inspect and identify the pest first,' it is usually the IPM-correct answer.
  • Thresholds are NOT about tolerating pests — they define when action becomes justified based on risk or damage level.
  • If the question involves a food plant, think FDA, USDA, GMPs, and third-party auditors.
  • The IPM pyramid puts chemical control at the top (smallest, least frequent) — not at the base.

Field takeaways

  • IPM documentation (service reports, monitoring records) protects the company and communicates value to the client.
  • Understanding thresholds helps technicians explain to clients why one cockroach in a hospital matters but one cricket outside a warehouse may not.
  • Non-chemical tactics often provide the longest-lasting control — bait stations catch pests, but exclusion stops them from coming back.

Listen, watch, read

Podcast

Scientific Principles of Integrated Pest Management

IPM theory from the ground up — pest thresholds, monitoring, decision-making, and treatment hierarchy.

Slide deck · 14 slides

IPM Strategic Blueprint

View the slides

Science of Pest Management

10:10

Module 2 quiz

25 questions. Answer them all, then grade to see the reasoning.

  1. Q1An action threshold in IPM is best defined as
  2. Q2In the IPM control hierarchy (pyramid), which tactic should be used MOST frequently?
  3. Q3Which agency primarily regulates pesticide applications in food handling facilities?
  4. Q4Which of the following is a monitoring tool that detects pests by scent?
  5. Q5The IPM 'pest triangle' concept means that removing which of the following will reduce a pest problem?
  6. Q6In IPM, monitoring differs from a single sampling event because monitoring
  7. Q7Which service practice is LEAST consistent with IPM?
  8. Q8In food manufacturing, the abbreviation GMPs refers to
  9. Q9The main role of a third-party auditing firm at a food plant is to
  10. Q10Which statement about action thresholds is most accurate?
  11. Q11Installing door sweeps and sealing gaps around pipes where they enter a building are examples of
  12. Q12Getting rid of stacked cardboard in a storeroom and caulking the cracks behind a kitchen backsplash is mainly
  13. Q13A distribution warehouse holds all incoming pallets of dried fruit in a separate area until they are inspected for insects. This tactic is
  14. Q14Sealing infested commodities and raising carbon dioxide or lowering oxygen to kill insects is called
  15. Q15An air curtain that blows a stream of air down across a loading-dock doorway is best classified as
  16. Q16University of Minnesota research on bed bug cold tolerance found that at about 3°F (-16°C), killing all life stages takes roughly
  17. Q17When planning a heat or cold treatment, the most important factor to get right is
  18. Q18Releasing beneficial insects such as parasitic wasps or predatory mites is most practical in
  19. Q19A technician finds the same grease buildup and food debris at every visit to a restaurant. Which step will most likely produce a lasting improvement?
  20. Q20Detailed service reports matter in an IPM program mainly because they
  21. Q21To look inside a wall void through a small drilled hole without opening the wall, a technician should use a
  22. Q22Which statement about scent-detection dogs for bed bugs or termites is most accurate?
  23. Q23Where should an insect light trap be placed in a food plant?
  24. Q24Sticky monitors for cockroaches give the most useful information when placed
  25. Q25Pest-proof design is best described as

0 of 25 answered

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