DE Pesticide Applicator study materials
DE Pesticide Applicator study resources

DE Pesticide Applicator key terms

DE Pesticide Applicator · Get comfortable with the vocabulary.

Private Applicator

A person who applies or supervises restricted-use pesticides on land they or their employer owns or rents, for agricultural production, without being paid to apply pesticides for others.

Related: Restricted-Use Pesticide, Certified Applicator, Farm
Commercial Applicator (For Hire)

A certified applicator who applies pesticides on property belonging to another person in exchange for money or other compensation, such as a lawn care or pest control operator serving customers.

Related: Commercial Applicator (Not For Hire), Pesticide Business License, Certified Applicator
Commercial Applicator (Not For Hire)

A certified applicator who applies pesticides only on property owned or leased by their employer, or on property they control, and is not paid by others for the application itself.

Related: Commercial Applicator (For Hire), Private Applicator, Certified Applicator
Pesticide Business License

A Delaware Department of Agriculture authorization required for a business entity that sells, distributes, or offers pesticide application services, separate from the individual applicator certification held by its employees.

Related: Commercial Applicator (For Hire), Certified Applicator, Pesticide Dealer
Certified Applicator

An individual who has passed the required competency examinations and holds a valid certification issued by the state to use or supervise the use of restricted-use pesticides.

Related: Private Applicator, Certification Cycle, Restricted-Use Pesticide
Restricted-Use Pesticide

A pesticide that is available for purchase and use only by certified applicators or persons under their direct supervision because it poses a higher risk to people or the environment.

Related: General-Use Pesticide, Certified Applicator, Direct Supervision
General-Use Pesticide

A pesticide that can be bought and used by the general public without certification, provided the label directions are followed, because it presents a lower risk when used as directed.

Related: Restricted-Use Pesticide, Label
Direct Supervision

A requirement that a noncertified person using a restricted-use pesticide be physically present with, or in immediate contact with, a certified applicator who is responsible for the application and its compliance.

Related: Certified Applicator, Restricted-Use Pesticide, Handler
Label

The written, printed, or graphic material attached to or accompanying a pesticide container, including directions for use, precautionary statements, and restrictions that are legally binding.

Related: Labeling, Section 3 Registration, Signal Word
Labeling

All written or graphic material that accompanies a pesticide or its container, including the label itself, brochures, and information referenced on the label, all of which carry legal weight.

Related: Label, Signal Word, Section 24(c) Special Local Need
Signal Word

A word such as DANGER, WARNING, or CAUTION that appears on the label to indicate the relative acute toxicity of the pesticide product to humans.

Related: Label, Toxicity, Precautionary Statement
Precautionary Statement

Label text describing hazards to people, animals, or the environment and the protective measures needed, such as required personal protective equipment or reentry restrictions.

Related: Signal Word, Personal Protective Equipment, Restricted Entry Interval
Personal Protective Equipment (PPE)

Clothing and gear such as gloves, coveralls, respirators, and eye protection that the label requires or that are needed to reduce exposure when handling or applying a pesticide.

Related: Precautionary Statement, Handler, Respirator
Restricted Entry Interval (REI)

The period after a pesticide application during which people may not enter the treated area without the protective equipment specified on the label, unless an exception applies.

Related: Precautionary Statement, Preharvest Interval, Worker Protection Standard
Preharvest Interval (PHI)

The minimum number of days that must pass between the last pesticide application and harvest of the crop, ensuring residues do not exceed allowed tolerances.

Related: Restricted Entry Interval, Tolerance, Label
Tolerance

The maximum amount of a pesticide residue legally permitted on or in a raw agricultural commodity, established by the U.S. Environmental Protection Agency under federal food safety law.

Related: Preharvest Interval, Section 24(c) Special Local Need, Label
Section 3 Registration

The standard federal registration of a pesticide product under the Federal Insecticide, Fungicide, and Rodenticide Act, approving its label for general distribution and use.

Related: Section 18 Emergency Exemption, Section 24(c) Special Local Need, Labeling
Section 18 Emergency Exemption

A temporary federal exemption allowing a state to use an unregistered pesticide or an unregistered use for a limited time to control an emergency pest situation.

Related: Section 3 Registration, Section 24(c) Special Local Need
Section 24(c) Special Local Need

A state-issued registration that permits an additional use of a federally registered pesticide to address a pest problem that is specific to that state, subject to EPA approval.

Related: Section 3 Registration, Section 18 Emergency Exemption, Tolerance
Worker Protection Standard (WPS)

Federal regulations protecting agricultural workers and pesticide handlers, covering training, notification, decontamination supplies, and restrictions on entry into treated areas.

Related: Restricted Entry Interval, Handler, Personal Protective Equipment
Handler

Under the Worker Protection Standard, a person who mixes, loads, transfers, or applies pesticides, or who handles equipment contaminated with pesticide residues.

Related: Worker Protection Standard, Personal Protective Equipment, Direct Supervision
Pesticide Dealer

A business or individual that sells or distributes pesticides to others, which may require a license or registration with the state and recordkeeping of restricted-use sales.

Related: Pesticide Business License, Restricted-Use Pesticide, Recordkeeping
Recordkeeping

The requirement to keep written records of pesticide applications and sales, including product, amount, date, location, and applicator, for the period specified by law.

Related: Pesticide Dealer, Certified Applicator, Application Record
Application Record

Documentation a certified applicator must complete for each pesticide application, listing the product name and EPA registration number, amount used, target pest, and site.

Related: Recordkeeping, EPA Registration Number, Label
EPA Registration Number

The unique identifier assigned to a pesticide product when it is federally registered, appearing on the label and used in application records and reporting.

Related: Section 3 Registration, Application Record, Label
Certification Cycle

The fixed period, commonly three years in Delaware, during which an applicator's certification remains valid before recertification or renewal is required.

Related: Recertification, Certified Applicator, Continuing Education
Recertification

The process of renewing a pesticide applicator certification by earning continuing education credits or retaking an examination before the certification expires.

Related: Certification Cycle, Continuing Education, Certified Applicator
Continuing Education

Training credits earned by attending approved courses or meetings, used to satisfy recertification requirements and keep applicators current on pest management and safety.

Related: Recertification, Certification Cycle
Pest Control Operator

A business or individual that provides pest control services for hire, typically requiring certification and a business license to operate legally in the state.

Related: Commercial Applicator (For Hire), Pesticide Business License, Certified Applicator
Supervision

The oversight a certified applicator provides to noncertified employees, ensuring applications comply with the label and that required training and safety measures are in place.

Related: Direct Supervision, Certified Applicator, Worker Protection Standard
Financial Responsibility

Proof, often through insurance or a surety bond, that a pesticide business can cover damages or cleanup costs, frequently required to obtain or maintain a business license.

Related: Pesticide Business License, Pest Control Operator
Toxicity

The degree to which a pesticide can harm a living organism, often classified as acute or chronic and communicated on the label through signal words and hazard statements.

Related: Signal Word, LD50, Precautionary Statement
LD50

The dose of a substance that kills 50 percent of a test population, used to compare acute toxicity and to determine the appropriate signal word for a product.

Related: Toxicity, Signal Word
Respirator

Protective equipment worn over the face to filter or supply air, required by some labels when mixing, loading, or applying certain pesticides or when working in enclosed spaces.

Related: Personal Protective Equipment, Precautionary Statement
Integrated Pest Management (IPM)

A strategy that combines biological, cultural, physical, and chemical controls, using pesticides only when needed and in ways that minimize risks to people and the environment.

Related: Economic Threshold, Label
Economic Threshold

The pest population level at which control measures are justified because the cost of damage would exceed the cost of treatment, guiding IPM decision-making.

Related: Integrated Pest Management (IPM)
Drift

The movement of pesticide away from the target area by air currents, which applicators must minimize to avoid harm to people, crops, and the environment.

Related: Label, Precautionary Statement