Biocide 
A substance which controls biological organisms, such as insects, fungi and mammals. A biocide can range from a pesticide, to a preservative, to a disinfectant.
Broad-Spectrum Herbicide
A pesticide which kills a wide range of different weed species. The control may be
1. selective, in killing a wide range of weeds but not all weed species and not desirable grass species; or
2. non-selective, in killing most or all vegetation, with it being non-discriminate in the species controlled. In this situation it is typically used in controlling weeds on pathways or clearing an area of vegetation prior to some form of cultivation work.
Contact Fungicide
A fungicide which is applied to a plant to control the effects of a plant which is being attacked by a fungal disease.
Contact Herbicide
A herbicide which only kills the foliage it comes into contact with.
Crop Definitions List
A list of definitions for use with approved Plant Protection Products which "defines the specific crops and situations covered by each term so that users can understand the crops/situations that can be treated under that authorisation."
The List has 4 levels: Level 1 has 3 categories, with turf surfaces being included within "Non-Crop Production" category. Turf areas are categorized in two Primary groups.
Crop Hierarchy
Terminology used for pesticides (Plant Protection Products) to ensure products are only applied to specified areas; it was created in 2000 and underwent several revisions thereafter. This term was amended and superseded with the Crop Definitions List in 2015.
Emulsifiable Concentrate
A formulation for a pesticide which is a uniform liquid, that is diluted in water and applied as an emulsion.
Emulsifier
A substance which helps two different materials become more evenly mixed together. An emulsifier may sometimes be part of a pesticide mixture.
Expellant
A material which is applied to a sward to expel pests and other soil fauna. The main use of an expellant was previously for the control of earthworms. A material would be applied and typically washed into the surface; the material would act as an irritant to the earthworm making it come to the turf surface.
Formulation Code
A code used to identify the different pesticide formulations. Some common examples include:
• DP: Dispersible powder;
• EC: Emulsifiable concentrate;
• GR: Granule;
• MG: Microgranule;
• SC: Suspension concentrate;
• SL: Soluble concentrate;
• SP: Water soluble powder;
• WG: Water dispersible granules;
• WP: Wettable powder.
(Reference: Catalogue of pesticide formulation types and international coding system. Technical Monograph No: 2 Edition: March 2017 https://croplife.org/wp-content/uploads/2017/04/Technical-Monograph-2-7th-Edition-Revised-March-2017.pdf)