This is a list of individual pesticides and related terms that we refer to in our reports. We also have a Pesticides Glossary which is an introduction to some of the technical terms that we often use.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
A
- Acaricides
- Acaricides are chemicals used to control pests in the acarina family such as mites and ticks. These creatures have 8 legs and are not insects (which have 6 legs) in the strict scientific meaning of the word but arachnids and are related to spiders.
- Acephate
- Acephate is an insecticide.
- Acetamiprid
- Acetamiprid is an insecticide.
- Acibenzolar-S-Methyl
- Acibenzolar-S-methyl is a fungicide.
- Acrinathrin
- Acrinathrin is an acaricide and insecticide.
- Active Substance
- Sometimes also known as the active ingredient, the active substance is the chemical which makes the pesticide work.
- Adjuvants
- An adjuvant is a substance other than water which is not in itself a pesticide but which enhances or is intended to enhance the effectiveness of the pesticide with which it is used. Adjuvants for use with agricultural pesticides are divided into extenders, wetting agents, sticking agents and fogging agents.
- Aldicarb
- Aldicarb is an insecticide and nematicide.
- Aldrin
- Aldrin is an insecticide.
- Algaecides
- See algicides.
- Algicides
- Algicides (or algaecides) are chemicals used to control algae
- Aminopyralid
- Aminopyralid is herbicide.
- Amitraz
- Amitraz is an acaricide and insecticide.
- Anticholinesterase
- See organophosphates.
- Antifeedants
- Antifeedants are chemicals which deter or prevent insect pests from feeding on plants treated with them. Many plants produce their own antifeedants and there is now interest in using these and synthetic versions to protect plants.
- Atrazine
- Atrazine is a herbicide.
- Avicides
- Avicides are pesticides which are used to control birds.
- Azinphos-Methyl
- Azinphos-methyl is an acaricide and insecticide.
B
- Bactericides
- Bactericides (or bacteriocides) are chemicals used to control bacteria. They tend to be divided into disinfectants, antiseptics and antibiotics and are usually used as biocides rather than plant protection products or agricultural pesticides.
- Benalaxyl
- Benalaxyl is a fungicide.
- Bendiocarb
- Bendiocarb is an insecticide.
- Bifenazate
- Bifenazate is an acaricide.
- Bifenthrin
- Bifenthrin is an acaricide and insecticide.
- Biocide
- A biocide is the EU term for any pesticide that is used for any reason other than to protect plants and plant products or control unwanted plants; for instance, for public hygiene reasons. Examples of biocides include household disinfectants, rat poisons and fly sprays. In the UK, biocides are regulated by the CRD. Information can be found on the main HSE website at the following address (http://www.hse.gov.uk/biocides/).
- Biocides that are not used on food or in food production and do not have MRLs. However, some products used as biocides are also used as plant protection products. These do have MRLs, but these relate only to the product’s plant protection uses.
See also “Plant Protection Products”.
- Biopesticide
- Biopesticides refers to a wide range of substances including pheromones and other semiochemical, microorganism such as Bacillus thuringiensis, fungi, protozoa, viruses, plant extracts such as rotenone and pyrethrum, and other novel alternative products.
- Biphenyl
- Biphenyl is a fungicide.
- Bird repellents
- Bird repellents are chemicals used to discourage birds from particular crops.
- Bitertanol
- Bitertanol is a fungicide.
- Boscalid
- Boscalid is a fungicide.
- Bromopropylate
- Bromopropylate is an acaricide.
- Bromoxynil
- Bromoxynil is a herbicide.
- Bupirimate
- Bupirimate is a fungicide.
- Buprofezin
- Buprofezin is an insecticide.
C
- Cadusafos
- Cadusafos is an insecticide and nematicide.
- Captan
- Captan is a fungicide.
- Carbamates
- Carbamates are a family of chemicals (organic compounds that are esters of carbamic acid).Some insecticides are carbamates. Other carbamates occur in nature, other uses include in plastics (polyurathanes) and in medicine.
- Carbamates are cholinesterase inhibitors (also called "anticholinesterases")
- Carbaryl
Carbaryl is an acaricide, insecticide and plant growth regulator.
- Carbendazim
- Carbendazim is a fungicide.
- Carbofuran
- Carbofuran is an acaricide, insecticide and nematicide.
- Carrier
- A solid ingredient added to a technical material as an absorbent or diluent.
- Chemosterilents
- Chemosterilents are chemicals which affect the ability of insect pests to reproduce.
- Chlorfenapyr
- Chlorfenapyr is an acaricide and insecticide.
- Chlormequat
- Chlormequat is a plant growth regulator.
- Chlorobenzilate
- Chlorobenzilate is an acaricide.
- Chlorothalonil
- Chlorothalonil is a fungicide.
- Chlorotoluron
- Chlorotoluron is a herbicide.
- Chlorpropham
- Chlorpropham is a herbicide and plant growth regulator.
- Chlorpyrifos
- Chlorpyrifos is an acaricide, insecticide and nematicide.
- Chlorpyrifos-Methyl
- Chlorpyrifos-methyl is an insecticide.
- Chlorthal-Dimethyl
- Chlorthal-dimethyl is a herbicide.
- Chlozolinate
- Chlozolinate is a herbicide.
- Cholinesterase
- Cholinesterase is an enzyme which plays a crucial part in the working of the nervous system. Some pesticides are cholinesterase inhibitors (also known as anticholinesterases) and interfere with the action of cholinesterase. This means they are neurotoxins (poisons that act on nerve cells) and that they suppress the action of the enzyme cholinesterase.
- Clofentezine
- Clofentezine is an acaricide.
- Clothianidin
- Clothianidin is an insecticide.
- Crop Spraying
- This is the activity that is often seen on farms at various times during the year, and can give rise to questions about what the farmer might be spraying. In general, the answer will depend both on what is growing in the fields and on what the problem is that the farmer is trying to control, and this can vary during the year. At the moment, only the farmer can say exactly which pesticide is being used.
- Cyazofamid
- Cyazofamid is a fungicide.
- Cyflufenamid
- Flufenamid is a fungicide.
- Cyfluthrin
- Cyfluthrin is an insecticide.
- Cymoxanil
- Cymoxanil is a fungicide.
- Cypermethrin
- Cypermethrin is an acaricide and insecticide.
- Cyproconazole
- Cyproconazole is a fungicide.
- Cyprodinil
- Cyprodinil is a fungicide.
D
- 2,4-D
- 2,4-D is a herbicide and plant growth regulator
- DDT
- DDT is a pesticide active substance named after its full chemical name (Dichloro-Diphenyl-Trichloroethane). In agriculture it is an organochlorine insecticide and acaricide. It also has animal and public health uses.
DDT is banned in the EU and in many other countries for environmental reasons. However it is still used in some countries to combat malaria (to control mosquitoes that carry the disease) and to control significant pests (e.g. locust swarms).
DDT is a POP so we occasionally detect it in samples, in particular in fish. Our analysts can advise based on the different forms of DDT present whether the residue is made up of breakdown products that indicate the residue comes from historical use or whether recent use is suspected.
- Deltamethrin
- Deltamethrin is an insecticide.
- Dessicant
- Generally speaking desiccants are chemicals that promote drying or prevent absorption of moisture.
In agriculture, dessicants are applied just before crops are harvested. The pesticides used are often also used as herbicides, and one effect of certain arable dessicants is that unwanted material (for instance, the leaves and stems of potatoes plants) is quickly killed.
Using dessicants helps farmers plan harvest dates, makes it easier to harvest crops, prevents damage to harvesting machines and reduces moisture in the crop so making it easier to store.
- Diazinon
- Diazinon is an acaricide and insecticide.
- Dichlofluanid
- Dichlofluanid is a fungicide and insecticide.
- Dichlorprop
- Dichlorprop is a herbicide and plant growth regulator.
- Dichlorvos
- Dichlorvos is an acaricide and insecticide.
- Dicloran
- Dicloran is a fungicide.
- Dicofol
- Dicofol is an acaricide.
- Dicrotophos
- Dicrotophos is an insecticide.
- Dieldrin
- Dieldrin is an insecticide.
- Diethofencarb
- Diethofencarb is a fungicide.
- Difenoconazole
- Difenoconazole is a fungicide.
- Diflubenzuron
- Diflubenzuron is an insecticide.
- Diluent
- A liquid or solid material used to dilute a concentrated pesticide formulation prior to application. For spray applications, this is usually water.
- Dimethoate
- Dimethoate is an acaricide, insecticide and nematicide.
- Dimethomorph
- Dimethomorph is a fungicide.
- Dimoxystrobin
- Dimoxystrobin is a fungicide.
- Diphenylamine
- Diphenylamine is a fungicide.
- Dispersible Granule
- See Water-Dispersible Granule.
- Disulfoton
- Disulfoton is an acaricide and insecticide.
- Dithianon
- Dithianon is a fungicide.
- Dithiocarbamates
- Dithiocarbamates are a group of pesticides that have a similar chemical structure and share a single Maximum Residue Level . Dithiocarbamate pesticides include maneb, mancozeb, metiram, propineb, thiram, ziram and zineb. They are all used as fungicides.
Detecting residues of individual dithiocarbamate pesticides is currently possible for propineb, thiram and ziram. These methods are not used routinely but only on a case-by-case basis when the specific quantification of these active substances is required. Instead the standard method for detecting dithiocarbamate residues is to add some of the sample to acid. The acid breaks down the dithiocarbamates which produces carbon disulphide gas. By measuring the carbon disulphide analysts can calculate the original amount of dithiocarbamates residue.
This method of analysis cannot tell the difference between different dithiocarbamate pesticides, so when it comes to risk assessments to be on the safe side we have to assume that the residue comes from the most toxic dithiocarbamate, zineb, unless the producer can tell us otherwise. So many risk assessments for dithiocarbamates may be over-estimates. Another problem is that acid will also break down other naturally occurring compounds that contain carbon disulphide. A good example is the cabbage family. Research has shown that levels of carbon disulphide from naturally occurring compounds in cabbages and their relatives can cause diction of dithiocarbamate residues, even at levels over the MRL. We can't test these vegetables for dithiocarbamates for this reason.
We suspect that there are other foods that also contain high levels of natural carbon disulphide, although we haven't seen peer-reviewed research to demonstrate it. In particular, it is possible that papaya also contains naturally occurring compounds that release carbon disulphide when they are broken down by acid.
- Diuron
- Diuron is a herbicide and algicide
- Dodine
- Dodine is a fungicide
- Drift Control Agent
- An ingredient in a formulation that controls the distribution of spray droplet sizes and prevents production of excessive spray drift.
- Dustable Powder (DP)
- A liquid, homogeneous formulation to be applied as an emulsion after dilution in water.
E
- Emulsifiable Concentrate (EC)
- A liquid, homogeneous formulation to be applied as an emulsion after dilution in water. (Croplife International Technical Monograph n°2, 6th Edition)
- Endosulfan
- Endosulfan is an acaricide and insecticide.
- EPN
- EPN is an insecticide.
- Epoxiconazole
- Epoxiconazole is a fungicide.
- Ethiofencarb
- Ethiofencarb is an insecticide.
- Ethion
- Ethion is an acaricide and insecticide.
- Ethofumesate
- Ethofumesate is a herbicide.
- Ethoprophos
- Ethoprophos is an insecticide and nematicide.
- Etrimfos
- Etrimfos is an insecticide.
F
- Fenamidone
- Fenamidone is a fungicide.
- Fenamiphos
- Fenamiphos is an insecticide and nematicide.
- Fenarimol
- Fenarimol is a fungicide.
- Fenazaquin
- Fenazaquin is an acaricide.
- Fenbuconazole
- Fenbuconazole is a fungicide.
- Fenhexamid
- Fenhexamid is a fungicide.
- Fenitrothion
- Fenitrothion is an organophosphate pesticide, used as an insecticide and acaricide on a wide range of crops. It also has public health uses, including against malaria mosquitoes.
- Fenitrothion
- Fenitrothion is an insecticide.
- Fenoxycarb
- Fenoxycarb is an insecticide.
- Fenpropathrin
- Fenpropathrin is an acaricide and insecticide.
- Fenpropimorph
- Fenpropimorph is a fungicide.
- Fenpyroximate
- Fenpyroximate is an acaricide.
- Fenthion
- Fenthion is an insecticide.
- Fenvalerate
- Fenvalerate is an acaricide and insecticide.
- Fipronil
- Fipronil is an acaricide and insecticide.
- Flowable Concentrate
- See Suspension Concentrate.
- Fluazinam
- Fluazinam is a fungicide.
- Fludioxonil
- Fludioxonil is a fungicide.
- Flufenacet
- Flufenacet is a herbicide.
- Flufenoxuron
- Flufenoxuron is an acaricide and insecticide.
- Fluopicolide
- Fluopicolide is a fungicide.
- Fluoxastrobin
- Fluoxastrobin is a fungicide.
- Flusilazole
- Flusilazole is a fungicide.
- Folpet
- Folpet is a fungicide.
- Fonofos
- Fonofos is an insecticide.
- Formothion
- Formothion is an acaricide and insecticide.
- Fosthiazate
- Fosthiazate is a nematicide.
- Fumigation
- The use of a pesticide in gas or vapour form.
- Fungicides
- Fungicides are chemicals that kill fungi and moulds.
As plant protection products, fungicides are used to control fungi or moulds on growing crops, or used as a post-harvest treatment to prevent funguses or moulds causing food to rot in storage or transport.
Other fungicides may be regulated as biocides or as medicines.
- Furalaxyl
- Furalaxyl is a fungicide.
- Furathiocarb
- Furathiocarb is an insecticide.
G
- Genetic Modification
- Genetic modification in crop protection involves the deliberate alteration of the genetic material of plants to improve their ability to survive pests.
- Glyphosate
- Glyphosate is a systemic herbicide.
- GM
- See “Genetic Modification ”.
- Graminocides
- Graminocides are pesticides used to kill or control grass weeds (as opposed to broad-leaved weeds).
- Granule
- A solid formulation comprising particles of defined size >80µm diameter, for application without further dilution, usually to soil.
- Growth Regulator
- See Plant Growth Regulator.
H
- Heptenophos
- Heptenophos is an acaricide and insecticide.
- Herbicides
- Herbicides are pesticides that kill weeds and unwanted plants.
- Hexachlorobenzene
- Hexachlorobenzene is a fungicide.
- Hexaconazole
- Hexaconazole is a fungicide.
- Hexythiazox
- Hexythiazox is an acaricide.
I
- Imazalil
- Imazalil is a fungicide.
- Imidacloprid
- Imidacloprid is an insecticide.
- Indoxacarb
- Indoxacarb is an insecticide.
- Insect attractants
- Insect attractants are chemicals used to attract insect pests away from particular crops, possibly to traps.
- Insect repellents
- Insect repellents are chemicals used to discourage insect pests from particular crops.
- Insecticides
- Insecticides are chemicals used to kill insect pests.
- Iprodione
- Iprodione is a fungicide used to control fungi on a wide range of fruits, vegetables and cereals. We sometimes find iprodione on UK apples. The levels are not illegal or a risk to health, all the same we are concerned about this because iprodione is not approved for use on apples in the UK. However, iprodione is approved for use on pears in the UK so the residues found on apples may come from cross-contamination from pears after harvest rather than from illegal use.
- Iprovalicarb
- Iprovalicarb is a fungicide.
- Isazophos
- Isazophos (or isazofos) is an insecticide and nematicide.
- Isocarbophos
- Isocarbophos is an acaricide and insecticide.
- Isofenphos
- Isofenphos is an insecticide.
- Isofenphos-Methyl
- Isofenphos-Methyl is an insecticide.
- Isoproturon
- Isoproturon is a herbicide and algicide.
J
K
- Kresoxim-Methyl
- Kresoxim-Methyl is a fungicide.
L
- Lambda-Cyhalothrin
- Lambda-cyhalothrin is an insecticide.
- Lindane
- Lindane is an acaricide and insecticide.
- Linuron
- Linuron is a herbicide.
- Lufenuron
- Lufenuron is an insecticide.
M
- Malathion
- Malathion is an acaricide and insecticide.
- Mammal Repellents
- See “Vertebrate Repellents”.
- Maximum Residue Level
- A Maximum Residue Level (MRL) is the maximum amount of a particular pesticide which is legally permitted in a foodstuff.
- Mecarbam
- Mecarbam is an acaricide and insecticide.
- Mepanipyrim
- Mepanipyrim is a fungicide.
- Metalaxyl
- Metalaxyl and the closely related metalaxyl-M are fungicides.
- Metaldehyde
- Commonly used as the pesticide in slug pellets. However, they must be used with care to prevent other animals such as birds or pets such as dogs eating them.
- Methacrifos
- Methacrifos is an acaricide and insecticide.
- Methamidophos
- Methamidophos is an acaricide and insecticide.
- Methidathion
- Methidathion is an insecticide.
- Methiocarb
- Methiocarb is an acaricide, insecticide and molluscicide.
- Methomyl
- Methomyl is a carbamate insecticide.
We have reported health concerns with methomyl residues in the past, in particular on grapes and (sweet) peppers. Following a European review, all approvals for use in the EU must be withdrawn by 19 March 2008 and member states cannot allow old stock to be used up after 19 March 2009. This decision was taken because work and wildlife safety had not been demonstrated – but not for reasons connected to residues. However, during the review a new Acute Reference Dose was set, and that means that some all the MRLs for methomyl are also under review. We expected most to be lowered in due course.
- Methomyl
- Methomyl is an insecticide.
- Methoxyfenozide
- Methoxyfenozide is an insecticide.
- Metolcarb
- Metolcarb is an acaricide and insecticide.
- Metrafenone
- Metrafenone is a fungicide.
- Mevinphos
- Mevinphos is an acaricide and insecticide.
- Miticides
See “Acaricides ”.
- Molluscicides
- Molluscicides are chemicals used to kill slugs and snails. They are often produced in the form of slug pellets which are scattered around the crops to be protected.
- Monocrotophos
- Monocrotophos is an acaricide and insecticide.
- MRL
- See “Maximum Residue Levels”
- Myclobutanil
- Myclobutanil is a fungicide.
N
- Natural Pesticides
- “Natural pesticides” is a phrase sometimes used to describe pesticides obtained or derived directly from plants.
- Nematicides
- Nematicides are chemicals used to kill or control nematodes. These are microscopic worms.
O
- Omethoate
- Omethoate is an acaricide and insecticide.
- Organic Pesticides
- UK pesticide regulations do not distinguish between pesticides used in organic systems of cultivation and pesticides used in conventional systems of cultivation. All pesticides must carry approval to be legally advertised, sold, supplied, stored or used.
Certain pesticides are accepted by bodies that regulate organic systems of cultivation as being suitable for use in those systems but this acceptance is in addition to and not in place of the approval required by pesticides legislation.
- Organochlorine
- Organochlorines are a family of chemicals (organic compounds containing at least one covalently bonded chlorine atom). Some organochlorines are insecticides, for example DDT is an organochlorine. Some organochlorines are persistent organic pollutants (POPs).
See organophosate
- Organophospate Pesticides
- Organophosphates (OPs) are a family of chemicals of phosphoric acid. Certain organophosphates are used in insecticides and herbicides. Other organophosphates were developed for other uses, most infamously some were developed as nerve gases
In the EU many OPs are no longer used as plant protection products, and those that remain approved are subject to strict controls.
Many organophosphates (not all) are cholinesterase inhibitors (also called "anticholinesterases"). That means they are neurotoxins (poisons that act on nerve cells) and that they suppress the action of the enzyme cholinesterase.
- Oxadixyl
- Oxadixyl is a fungicide.
- Oxamyl
- Oxamyl is an acaricide, insecticide and nematicide.
- Oxydemeton-Methyl
- Oxydemeton-methyl is an insecticide.
P
- Paclobutrazol
- Paclobutrazol is a plant growth regulator.
- Parathion
- Parathion is an acaricide and insecticide.
- Parathion-Methyl
- Parathion-methyl is an insecticide.
- Penconazole
- Penconazole is a fungicide.
- Pellet
- A solid formulation of pesticide, larger than a granule, often used for molluscicide formulations.
- Pencycuron
- Pencycuron is a fungicide.
- Pendimethalin
- Pendimethalin is a herbicide.
- Permethrin
- Permethrin is an acaricide and insecticide.
- Pesticides
- Pesticides are chemicals used to control a broad range of pests, weeds and diseases in plants. Legally, a pesticide is any substance, preparation or organism prepared or used, among other uses, to protect plants or wood or other plant products from harmful organisms; to regulate the growth of plants; to give protection against harmful creatures; or to render such creatures harmless.
Acaricides, algicides (algaecides), antifeedants, avicides, bactericides (bacteriocides), animal and bird repellents, chemosterilants, fungicides, herbicides, insecticides, insect repellents and attractants, mating disrupters, molluscicides, nematicides, plant activators, plant growth regulators, rodenticides, synergists and viricides are all considered to be types of pesticide. Under UK pesticide legislation, the term “pesticides” includes insect killers (insecticides), mould and fungi killers (fungicides), weedkillers (herbicides), slug pellets (molluscicides), plant growth regulators, bird and animal repellents, and rat and mouse killers (rodenticides)
- Phenthoate
- Phenthoate is an insecticide.
- Phorate
- Phorate is an acaricide, insecticide and nematicide.
- Phosalone
- Phosalone is and acaricide and insecticide.
- Phosmet
- Phosmet is an acaricide and insecticide.
- Phosphamidon
- Phosphamidon is an insecticide and nematicide.
- Picoxystrobin
- Picoxystrobin is a fungicide.
- Pirimicarb
- Pirimicarb is an insecticide.
- Pirimiphos-Ethyl
- Pirimiphos-ethyl is an insecticide.
- Pirimiphos-Methyl
- Pirimiphos-methyl is an acaricide and insecticide.
- Plant Growth Regulator
- Plant growth regulators are pesticides that affect plant aging processes. Examples of their uses are to:
- make sure that cereal crops don't grow so tall that they'll be flattened by rain
- ensure that fruits like apples and pears are formed in cases of poor pollination
- prevent crops in store from sprouting (see sprout suppressants below)
- stop leaf-yellowing in cut flowers (not monitored by the PRC)
- ensure that pot plants remain compact
- Plant Protection Products
- “Plant protection products” is the EU term for pesticides that are used to protect plants and plant products or to control unwanted plants. Examples include weedkillers, insecticides, and rat poisons used to protect growing crops. MRLs are set for plant protection products as part of the EU registration process.
See also Biocides. - POPs
- Persistent Organic Pollutants
- Post-Harvest Treatments
- Post-harvest treatments are pesticides used after crops have been harvested. They are used to make sure that produce will store well, or will arrive with the consumer in good condition.
See also: fungicide, sprout suppressants .
- Prochloraz
- Prochloraz is a fungicide.
- Procymidone
- Procymidone is a fungicide.
- Profenofos
- Profenofos is an insecticide.
- Propamocarb
- Propamocarb is a fungicide
- Propargite
- Propargite is an acaricide.
- Propham
- Propham is a herbicide and plant growth regulator.
- Propiconazole
- Propiconazole is a fungicide.
- Propoxur
- Propoxur is an acaricide and insecticide.
- Propyzamide
- Propyzamide is a herbicide.
- Prothiofos
- Prothiofos is an insecticide.
- Pymetrozine
- Pymetrozine is an antifeedant.
- Pyraclostrobin
- Pyraclostrobin is a fungicide.
- Pyrazophos
- Pyrazophos is a fungicide and insecticide.
- Pyrethrins
- The pyrethrins are insecticides.
- Pyrethrins (organic)
- The pyrethrins are insecticides.
- Pyridaben
- Pyridaben is an acaricide and insecticide.
- Pyridaphenthion
- Pyridaphenthion is an insecticide.
- Pyrifenox
- Pyrifenox is a fungicide.
- Pyrimethanil
- Pyrimethanil is a fungicide.
- Pyriproxifen
- Pyriproxifen is an insecticide.
Q
- Quassia
- Quassia is an insecticide derived from the plant Quassia amara.
- Quinalphos
- Quinalphos is an acaricide and insecticide.
- Quinoxyfen
- Quinoxyfen is a fungicide.
- Quintozene
- Quintozene is a fungicide.
R
- Repellents
- Repellents are chemicals which are used to try and persuade pests, particularly bird and animal pests, to stay away from or keep out of the area treated.
- Ripening Agent
- These are treatments used on harvested crops, particularly fruit such as bananas, in order to control the rate and timing of ripening. Often used where the crop is harvested in an unripe condition to facilitate transport and allow ripening for sale when required. Ethylene gas is often used for this purpose because the ripening fruit is triggered in nature by the presence of the gas.
- Rodenticides
- Rodenticides are chemicals used to kill rats, mice and other rodents.
- Rotenone
- Rotenone (known as derris) is an insecticide derived from the roots and stems of several tropical and subtropical plants.
S
- Simazine
- Simazine is a herbicide and algicide.
- Spinosad
- Spinosad is an insecticide.
- Spiromesifin
- Spiromesifin is an insecticide.
- Spiroxamine
- Spiroxamine is a fungicide.
- Sprout Suppressants
- These are a kind of post-harvest treatment used on potatoes. They are a type of plant growth regulator.
- Suspension Concentrate (SC)
- A stable suspension of active ingredient(s) with water as the fluid, intended for dilution with water before use. (Croplife International Technical Monograph n°2, 6th Edition)
- Synergist
- A synergist is a chemical that has little or no pesticidal action of its own, but when added to a formulation makes an active substance far more effective or stable. This means that less active substance is needed to do the same work. Synergists are not currently regulated as pesticide active substances in the UK although they are in some countries.
T
- Tau-Fluvalinate
- Tau-fluvalinate is an acaricide and insecticide.
- Tebuconazole
- Tebuconazole is a fungicide.
- Tebufenozide
- Tebufenozide is an insecticide.
- Tebufenpyrad
- Tebufenpyrad is an acaricide and insecticide.
- Tecnazene
- Tecnazene is a fungicide suppressant
- Teflubenzuron
- Teflubenzuron is an insecticide.
- Tefluthrin
- Tefluthrin is an insecticide.
- Terbufos
- Terbufos is an insecticide and nematicide.
- Tetrachlorvinphos
- Tetrachlorvinphos is an acaricide and insecticide.
- Tetraconazole
- Tetraconazole is a fungicide.
- Tetradifon
- Tetradifon is an acaricide.
- Tetramethrin
- Tetramethrin is an insecticide.
- Thiabendazole
- Thiabendazole is a fungicide.
- Thiacloprid
- Thiacloprid is an insecticide.
- Thiamethoxam
- Thiamethoxam is an insecticide.
- Thiodicarb
- Thiodicarb is an insecticide.
- Thiophanate-Methyl
- Thiophanate-methyl is a fungicide.
- Tolclofos-Methyl
- Tolclofos-methyl is a fungicide.
- Tolylfluanid
- Tolylfluanid is a fungicide.
- Triadimefon
- Triadimefon is a fungicide.
- Triadimenol
- Triadimenol is a fungicide.
- Triazamate
- Triazamate is an insecticide.
- Triazophos
- Triazophos is an acaricide, insecticide and nematicide.
- Trifloxystrobin
- Trifloxystrobin is a fungicide.
- Trifluralin
- Trifluralin is a herbicide.
U
V
- Vertebrate Repellents
- Vertebrate repellents are chemicals used to discourage animals away from treated areas.
- Vinclozolin
- Vinclozolin is a fungicide.
- Virucides
- Virucides are chemicals used to kill or control viruses.
W
- Water Dispersible Granule (WG)
- A formulation consisting of granules to be applied after disintegration and dispersion in water. (Croplife International Technical Monograph n°2, 6th Edition).
- Water Dispersible Powder (WS)
- A powder to be dispersed at high concentration in water before application as a slurry to the seed). (Croplife International Technical Monograph n°2, 6th Edition)
- Water Soluble Powder
- See Wettable Powder.
- Wettable Powder (WP)
- A powder formulation to be applied as a suspension after dispersion in water. (Croplife International Technical Monograph no 2. 6th Edition)
X
Y
Z
- Zoxamide
- Zoxamide is a fungicide
