What Is Pest Control? Terms and Definitions Explained
Pest control, pest management, exterminator and IPM are used interchangeably. Only some of the differences are real, and one has legal force.
Pest control is the management of organisms that damage property, contaminate food or affect health, and in the United States it is a licensed activity governed by federal pesticide law and state certification. The industry term of art is pest management, exterminator is the older consumer word for the same trade, and the distinction that actually matters legally is who is certified to apply what.
The vocabulary in this field is inconsistent and the differences are usually presented as marketing. Some of them are real, and one of them determines what can lawfully be applied in your home.
The terms, and which differences are real
| Term | What it means | Is the distinction real |
|---|---|---|
| Pest control | The general activity and the industry’s common name | Baseline |
| Pest management | Preferred trade term, implying ongoing programme rather than one-off killing | Partly. Often just preference, but see IPM below |
| Exterminator | Older consumer term for the same work | No legal difference |
| Integrated pest management (IPM) | A decision framework with monitoring and action thresholds | Yes, and it is contractually required in some settings |
| Applicator | The certified individual who applies pesticides | Yes, this is a legal status |
| Wildlife control | Vertebrate animals, often separately licensed | Yes, different rules and often a different licence |
| Structural pest control | Work in and around buildings, as opposed to agriculture | Yes, it is a defined certification category |
Exterminator and pest control describe the same trade. IPM is genuinely different, covered in our guide to what IPM actually changes.
The distinction that has legal force
Federal rules under 40 CFR Part 171 define 15 commercial applicator certification categories, lettered (a) through (o). Structural pest control is category (g), covering work in and around food handling establishments, human dwellings, institutions such as schools and hospitals, and industrial premises.
Certification is granted per category, so an applicator certified for structural work is not automatically certified for fumigation, which is category (n) for whole-structure work and (m) for soil. Certification expires after at most five years, and a state may set a shorter term.
That framework is what separates a licensed applicator from anyone else with a sprayer. Our guide to the federal licensing framework sets out all 15 categories.
What the industry actually is, in numbers
Structural pest control in the United States is a small-business industry with a very concentrated top end.
| Measure | Figure | Source year |
|---|---|---|
| Establishments | 16,535 | Census CBP 2023 |
| Industry employment | 139,150 | Census CBP 2023 |
| Industry receipts | $19.56 billion | Census SUSB 2022 |
| Firms with under 5 employees | 8,882 of 13,603 | Census SUSB 2022 |
| Pest control workers (occupation) | 102,620 | BLS OEWS May 2025 |
| Median technician wage | $45,250 | BLS OEWS May 2025 |
Note the two employment figures. Census counts everyone employed by the industry including office and management staff. BLS counts the occupation, people whose job is pest control work wherever they are employed. They are different populations and are not interchangeable, which is the most common error in writing about this industry.
What the work involves
- Inspection and identification, which determines everything that follows. Misidentifying carpenter ants as termites means the right product applied to the wrong problem.
- Monitoring, using devices and records to establish whether activity is present and at what level.
- Exclusion, sealing the physical routes pests use. This is the only measure that keeps working after you stop paying, covered in our guide to pest-proofing your home.
- Sanitation and habitat change, removing food, water and harbourage.
- Targeted application, product placed into cracks, voids and enclosed bait stations rather than across open surfaces.
- Evaluation, records showing whether it worked.
A programme that goes straight to step five every visit is a calendar spray rather than pest management, whatever it is called on the invoice.
Frequently asked questions
What does pest control mean?
The management of organisms that damage property, contaminate food or affect health. In the United States it is a licensed activity: applying pesticides commercially requires certification under federal rules, with structural work falling in applicator category (g), and every state runs its own certification programme meeting or exceeding the federal standard.
What is the difference between pest control and an exterminator?
None in legal or practical terms. Exterminator is the older consumer word for the same trade. Pest management is the preferred industry term, implying an ongoing programme rather than one-off killing, but on its own it is a preference rather than a defined standard. Integrated pest management is a genuinely different framework.
How big is the US pest control industry?
Census recorded 16,535 establishments employing 139,150 people in 2023, with receipts of $19.56 billion in 2022. It is dominated by small firms: 8,882 of 13,603 companies employ fewer than five people. BLS separately counts 102,620 people in the pest control worker occupation.
Do you need a licence for pest control?
To apply pesticides commercially, yes. Federal rules require certification for restricted use products, structural work falls in category (g) of 15 commercial applicator categories, and certification expires after at most five years. Most states require licensing for commercial application regardless of product classification.
Sources
- 40 CFR Part 171, applicator certification categories and standards. ecfr.gov
- U.S. Census Bureau, County Business Patterns 2023 and Statistics of U.S. Businesses 2022, NAICS 561710.
- U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025, SOC 37-2021.