Pesticide Registration Toolkit

Terms and definitions P

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Container together with the protective wrapping used to carry pesticide products via wholesale or retail distribution to users. [Source: International Code of Conduct]

Personal protective equipment (PPE):

Any clothes, materials or devices that provide protection from pesticide exposure during handling and application. It includes both specifically designed protective equipment and clothing reserved for pesticide application and handling. [Source: International Code of Conduct]


Any species, strain or biotype of plant, animal or pathogenic agent injurious to plants and plant products, materials or environments and includes vectors of parasites or pathogens of human and animal disease and animals causing public health nuisance. [Source: International Code of Conduct]


Any substance, or mixture of substances of chemical or biological ingredients intended for repelling, destroying or controlling any pest, or regulating plant growth. [Source: International Code of Conduct]


Cleavage of one or more covalent bonds in a molecular entity resulting from absorption of light, or a photochemical process in which such cleavage is an essential part. [Source: IUPAC]


Capacity of a plant protection product to cause temporary or long-lasting damage to plants. [Source: FAO Efficacy guidelines]

Predicted Environmental Concentration (PEC) (also Estimated Environmental Concentration (EEC)):

Predicted concentration of a substance, typically a pesticide, within an environmental compartment based on estimates of quantities released, discharge patterns, and inherent disposition of the substance (fate and distribution) as well as the nature of the specific receiving ecosystems. [Source: IUPAC]

Predicted no-effect concentration (PNEC):

Concentration that is expected to cause no adverse effect to any naturally occurring population in an environment at risk from exposure to a given substance. [Source: IUPAC]

Processing factor (for a specified pesticide residue, commodity and food process):

Residue level in the processed product divided by the residue level in the starting commodity, usually a raw agricultural commodity. [Source: JMPR]

Product (or pesticide product):

Formulated product (pesticide active ingredient(s) and co-formulants), in the form in which it is packaged and sold. [Source: International Code of Conduct]

Public health uses of pesticides:

Pesticides that are used in the control of pests of public health significance. They include disease vector control pesticides, household pesticide products, and professional pest control pesticides (used by pest control operators in homes and public areas). [Source: International Code of Conduct]