| 2-allylphenol | A member of the class of phenols that is phenol carrying an allyl group at position 2. | 2-allylphenol |
| 2-chloro-n-(4-chlorobiphenyl-2-yl)nicotinamide | A pyridinecarboxamide obtained by formal condensation of the carboxy group of 2-chloronicotinic acid with the amino group of 4'-chlorobiphenyl-2-amine. A fungicide active against a broad range of fungal pathogens including Botrytis spp., Alternaria spp. and Sclerotinia spp. for use on a wide range of crops including fruit, vegetables and ornamentals. | boscalid |
| 2-n-octyl-4-isothiazolin-3-one | A member of the class of 1,2-thiazole that is 1,2-thiazol-3-one substituted on the nitrogen (position 2) by an octyl group. A fungicide and antibacterial agent, it is used for treatment of canker and other fungal and bacterial diseases in fruit trees. It is no longer approved for use within the European Union. | octhilinone |
| 2-phenylphenol | A member of the class of hydroxybiphenyls that is biphenyl substituted by a hydroxy group at position 2. It is generally used as a post-harvest fungicide for citrus fruits. | biphenyl-2-ol |
| 3-iodo-2-propynylbutylcarbamate | A carbamate ester that is carbamic acid in which the nitrogen has been substituted by a butyl group and in which the hydrogen of the carboxy group is replaced by a 1-iodoprop-2-yn-3-yl group. A fungicide, it is used as a preservative and sapstain control chemical in wood products and as a preservative in adhesives, paints, latex paper coating, plastic, water-based inks, metal working fluids, textiles, and numerous consumer products. | 3-iodoprop-2-yn-1-yl butylcarbamate |
| 4,5,6,7-tetrachlorophthalide | A member of the class of 2-benzofurans that is 2-benzofuran-1(3H)-one in which all or the hydrogens attached to the benzene ring are replaced by chlorines. A fungicide used for the control of rice blast, it is not approved for use within the European Union. | 4,5,6,7-tetrachloro-2-benzofuran-1(3H)-one |
| ametoctradin | A member of the class of triazolopyrimidines that is [1,2,4]triazolo[1,5-a]pyrimidin-7-amine carrying additional ethyl and octyl substituents at positions 5 and 6 respectively. A fungicide for the control of late blight and downey mildew on potatoes and other crops including vines. | ametoctradin |
| azaconazole | A member of the class of dioxolanes that is 1,3-dioxolane substituted at position 2 by 2,4-dichlorophenyl and 1,2,4-triazol-1-ylmethyl groups. A fungicide used mainly in ornamental crops to control canker and other diseases. Azaconazole is moderately toxic to mammals but is not expected to bioaccumulate. It is moderately toxic to birds, fish and aquatic invertebrates. | azaconazole |
| azoxystrobin | An aryloxypyrimidine having a 4,6-diphenoxypyrimidine skeleton in which one of the phenyl rings is cyano-substituted at C-2 and the other carries a 2-methoxy-1-(methoxycarbonyl)vinyl substituent, also at C-2. An inhibitor of mitochondrial respiration by blocking electron transfer between cytochromes b and c1, it is used widely as a fungicide in agriculture. | azoxystrobin |
| benomyl | A member of the class of benzimidazoles that is the methyl ester of [1-(butylcarbamoyl)-1H-benzimidazol-2-yl]carbamic acid. A foliar fungicide used to control a wide range of Ascomycetes and Fungi Imperfecti in a wide range of crops. | benomyl |
| bithionol | An aryl sulfide that is diphenyl sulfide in which each phenyl group is substituted at position 2 by hydroxy and at positions 3 and 5 by chlorine. A fungicide and anthelmintic, it was used in various topical drug products for the treatment of liver flukes, but withdrawn after being shown to be a potent photosensitizer with the potential to cause serious skin disorders. | bithionol |
| bupirimate | A member of the class of aminopyrimidines that is 2-ethylaminopyrimidine carrying methyl, butyl and dimethylaminosulfooxy substituents at posiitons 4, 5 and 6 respectively. | bupirimate |
| captafol | A dicarboximide that captan in which the trichloromethyl group is replaced by a 1,1,2,2-tetrachloroethyl group. A broad-spectrum fungicide used to control diseases in fruit and potatoes, it is no longer approved for use in the European Community. | captafol |
| captan | A dicarboximide that is 3a,4,7,7a-tetrahydrophthalimide in which the hydrogen attached to the nitrogen is replaced by a trichloromethyl group. A non-systemic fungicide introduced in the 1950s, it is widely used for the control of fungal diseases in fruits, vegetables, and ornamental crops. | captan |
| carbendazim | A member of the class of benzimidazoles that is 2-aminobenzimidazole in which the primary amino group is substituted by a methoxycarbonyl group. A fungicide, carbendazim controls Ascomycetes, Fungi Imperfecti, and Basidiomycetes on a wide variety of crops, including bananas, cereals, cotton, fruits, grapes, mushrooms, ornamentals, peanuts, sugarbeet, soybeans, tobacco, and vegetables. | carbendazim |
| carboxin | An anilide obtained by formal condensation of the amino group of aniline with the carboxy group of 2-methyl-5,6-dihydro-1,4-oxathiine-3-carboxylic acid. A fungicide for control of bunts and smuts that is normally used as a seed treatment. | carboxin |
| carpropamid | A cyclopropylcarboxamide obtained by formal condensation of the carboxy group of 2,2-dichloro-1-ethyl-3-methylcyclopropanecarboxylic acid with the amino group of 1-(4-chlorophenyl)ethylamine. A rice fungicide with specific action against Pyricularia oryzae. It is not highly toxic to mammals but shows a moderate level of toxicity to birds, fish and earthworms. | carpropamid |
| chloroneb | A dimethoxybenzene that is p-dimethoxybenzene which is substituted by chlorines at positions 2 and 5. A fungicide formerly used as a seed treatment, it is not approved for use in the European Union. | chloroneb |
| chloropicrin | A C-nitro compound that is nitromethane in which all three hydrogens are replaced by chlorines. It is a severe irritant, and can cause immediate, severe inflammation of the eyes, nose and throat, and significant injuries to the upper and lower respiratory tract. Formerly stockpiled as a chemical warfare agent, it has been widely used in the US as a soil fumigant, particularly for strawberry crops. It is not approved for use within the European Union. | chloropicrin |
| cyazofamid | A member of the class of imidazoles carrying dimethylsulfamyl, cyano, chloro and 4-tolyl substituents at positions 1, 2, 4 and 5 respectively. A fungicide used mainly for controlling Oomycete and Plasmodiophora diseases on potatoes and tomatoes. It is a skin and eye irritant and is moderately toxic to birds, most aquatic organisms, honeybees and earthworms. | cyazofamid |
| cyprodinil | A member of the class of aminopyrimidine that is N-phenylpyrimidin-2-amine carrying additional cyclopropyl and methyl substituents at positions 4 and 6 respectively. A broad spectrum fungicide used to control a range of pathogens including Tapesia yallundae, Botrytis spp., Alternaria spp. and Rhynchospium secalis. Whilst it is a recognised irritant no serious human health concerns have been identified. It is moderately toxic to birds as well as most aquatic organisms and earthworms, but it is not considered toxic to honeybees. | cyprodinil |
| dazomet | A dithiocarbamic ester that is 1,3,5-thiadiazinane with a thione moiety at position 2 and in which the hydrogens attached to the nitrogens are replaced by methyl groups. A fungicide, herbicide and nematicide, it is used prior to sowing or planting for the control of soil fungi, nematodes, bacteria and germinating weeds, and as fumigant for poultry litter and eggs to control Salmonella. It is a non-ozone-depleting alternative to methyl bromide. | dazomet |
| dichlofluanid | A member of the class of sulfamides that is sulfamide in which the hydrogens attached to one of the nitrogens are replaced by methyl groups, while those attached to the other nitrogen are replaced by a phenyl and a [dichloro(fluoro)methyl]sulfanediyl group. A fungicide introduced in 1965 and used in the cultivation of fruit and vegetables, as well as in wood preservatives, it is no longer approved for use in the European Union. | dichlofluanid |
| dicloran | A nitroaniline that is 4-nitroaniline in which the hydrogens at positions 2 and 6 are replaced by chlorines. An agricultural fungicide, it is not approved for use in the European Union. | 2,6-dichloro-4-nitroaniline |
| diethofencarb | A carbamate ester that is the isopropyl ester of (3,4-diethoxyphenyl)carbamic acid. A fungicide with strong activity against Botrytis cinerea and benzimidazole-resistant strains of Botryis spp. | diethofencarb |
| difenoconazole | A member of the class of dioxolanes that is 1,3-dioxolane substituted at position 2 by 2-chloro-4-(4-chlorophenoxy)phenyl and 1,2,4-triazol-1-ylmethyl groups. A broad spectrum fungicide with novel broad-range activity used as a spray or seed treatment. It is moderately toxic to humans, mammals, birds and most aquatic organisms. | difenoconazole |
| dimethomorph | A mixture of (E)- and (Z)-dimethomorph in an unspecified ratio. It is used as a systemic fungicide used on vines, potatoes, and greenhouse crops; only the Z isomer has fungicidal activity. | dimethomorph |
| diphenyl | A benzenoid aromatic compound that consists of two benzene rings connected by a single covalent bond. Biphenyl occurs naturally in coal tar, crude oil, and natural gas. Formerly used as a fungicide for citrus crops. | biphenyl |
| diphenylamine | An aromatic amine containing two phenyl substituents. It has been used as a fungicide for the treatment of superficial scald in apples and pears, but is no longer approved for this purpose within the European Union. | diphenylamine |
| dithianone | A naphthodithiin that is 5,10-dioxo-5,10-dihydronaphtho[2,3-b][1,4]dithiin which is substituted by nitrile groups at positions 2 and 3. It is a broad spectrum fungicide used to control scab, downy mildew, rust, and leaf spot in the commercial growing of grapes and other fruit, citrus, coffee, and vegetables. | dithianon |
| dodine | An acetate salt resulting from the reaction of equimolar amounts of 1-dodecylguanidine and acetic acid. It is used as a fungicide to control black spot and foliar diseases on apples, pears, peaches, nectarines and strawberries. | 1-dodecylguanidine acetate |
| dyrene | A member of the class of triazenes that is dichlorotriazene in which the hydrogen is replaced by an o-chloroanilino group. A fungicide formerly used to control leaf spots and downy mildew, it is no longer approved for use within the European Union. | anilazine |
| edifenphos | An organic thiophosphate that is the O-ethyl-S,S-diphenyl ester of phosphorodithioic acid. Used to control a variety of fungal diseases on rice including blast, ear blight and stem rot. Edifenphos is moderately toxic to mammals and fish but poses more of a risk to aquatic invertebrates. | edifenphos |
| ethirimol | An aminopyrimidine that is 2-ethylaminopyrimidin-4-one carrying butyl and methyl substituents at positions 5 and 6 respectively. A fungicide first marketed in 1970 and used as a seed treatment for diseaases such as damping-off, it is not licensed for use within the European Union. | ethirimol |
| ethoxyquin | A quinoline that is 1,2-dihydroquinoline bearing three methyl substituents at position 2, 2 and 4 as well as an ethoxy substituent at position 6. | ethoxyquin |
| etridiazol | A member of the class of thiadiazoles that is 1,2,4-thiadiazole which is substituted at positions 3 and 5 by trichloromethyl and ethoxy groups, respectively. A fungicide, it has been used particularly for the control of Phytophthora and Pythium species in soils. | etridiazole |
| fenamidone | A member of the class of imidazolones that is 3,5-dihydroimidazol-4-one substituted at position 2 by a methylthiogroup, at position 3 by an anilino group and at position 5 by phenyl and methyl groups (the S-enantiomer). A fungicide effective against Oomycete diseases such as downy mildew and certain leaf spot diseases. | fenamidone |
| fenpiclonil | A member of the class of pyrroles carrying cyano and 2,3-dichlorophenyl substituents at positions 3 and 4 respectively. A fungicide used mainly to control seed-borne pathogens in cereal crops. | fenpiclonil |
| fluazinam | A member of the class of aminopyridines that is 2-amino-5-(trifluoromethyl)pyridine in which one of the amino hydrogens is replaced by a 3-chloro-2,6-dinitro-4-(trifluoromethyl)phenyl group. A fungicide used to control grey mould, downy mildew and other fungal pathogens. | fluazinam |
| fludioxonil | A member of the class of benzodioxoles that is 2,2-difluoro-1,3-benzodioxole substituted at position 4 by a 3-cyanopyrrol-4-yl group. A fungicide seed treatment for control of a range of diseases including Fusarium, Rhizoctonia and Alternaria. | fludioxonil |
| fluopicolide | A member of the class of benzamides obtained by formal condensation of the carboxy group of 2,6-dichlorobenzoic acid with the amino group of [3-chloro-5-(trifluoromethyl)pyridin-2-yl]methylamine. A fungicide used for the control of a range of diseases including downy mildew and blight. | fluopicolide |
| fluoxastrobin | An oxime O-ether that is the O-methyl oxime of (2-{[6-(2-chlorophenoxy)-5-fluoropyrimidin-4-yl]oxy}phenyl)(5,6-dihydro-1,4,2-dioxazin-3-yl)methanone. A fungicide used for disease control of potatoes and a wide range of vegetables. | fluoxastrobin |
| fluquinconazole | A member of the class of quinazolines that is 6-fluoroquinazolin-4-one carrying additional 1,2,4-triazol-1-yl and 2,4-dichlorophenyl substituents at positions 2 and 3 respectively. A fungicide used to control Ascomycetes, Deuteromycetes and Basidiomycetes spp. on cereals, beets and fruit. | fluquinconazole |
| flusilazole | An organosilicon compound that is dimethylsilane in which the hydrogens attached to the silicon are replaced by p-fluorophenyl groups and a hydrogen attached to one of the methyl groups is replaced by a 1H-1,2,4-triazol-1-yl group. It is a broad-sepctrum fungicide used to protect a variety of crops. | flusilazole |
| flutolanil | A member of the class of benzamides, obtained by formal condensation of the carboxy group of 2-(trifluoromethyl)benzoic acid with the amino group of 3-(ispropyloxy)aniline. A fungicide used to control a range of pathogens especially Rhizoctonia spp. on rice, turf and other crops. | flutolanil |
| fluxapyroxad | An aromatic amide obtained by formal condensation of the carboxy group of 3-(difluoromethyl)-1-methylpyrazole-4-carboxylic acid with the amino group of 3',4',5'-trifluorobiphenyl-2-amine. Used to control a number of cereal fungal pathogens including those belonging to the Ascomycetes, Basidiomycetes and Zygomycetes families. | fluxapyroxad |
| folpet | A member of the class of phthalimides that is phthalimide in which the hydrogen attached to the nitrogen is replaced by a trichloromethylthio group. An agricultural fungicide, it has been used to control mildew, leaf spot, and other diseases in crops sice the 1950s. | folpet |
| fuberidazole | A ring assembly consisting of benzimidazole substituted at position 2 by a 2-furyl group. A fungicide used as a seed treatment to control Fusarium spp. in cereals. | fuberidazole |
| guazatine | A member of the class of guanidines that is dioctylamine in which a hydrogen from each of the terminal methyl groups is replaced by a guanidino group. Once used as a fungicidal seed dressing, it is no longer approved for use in the European Union. | iminoctadine |
| hexachlorobenzene | A member of the class of chlorobenzenes that is benzene in which all of the hydrogens are replaced by chlorines. An agricultural fungicide introduced in the mid-1940s and formerly used as a seed treatment, its use has been banned since 1984 under the Stockholm Convention on Persistent Organic Pollutants. | hexachlorobenzene |
| hexachlorophene | An organochlorine compound that is diphenylmethane in which each of the phenyl groups is substituted by chlorines at positions 2, 3, and 5, and by a hydroxy group at position 6. An antiseptic that is effective against Gram-positive organisms, it is used in soaps and creams for the treatment of various skin disorders. It is also used in agriculture as an acaricide and fungicide, but is not approved for such use within the European Union. | hexachlorophene |
| hymexazol | A member of the class of isoxazoles carrying hydroxy and methyl substituents at positions 3 and 5 respectively. It is used worldwide as a systemic soil and seed fungicide for the control of diseases caused by Fusarium, Aphanomyces, Pythium, and Corticium spp. in rice, sugarbeet, fodderbeet, vegetables, cucurbits, and ornamentals. | hymexazol |
| iprodione | An imidazolidine-2,4-dione in which the nitrogen at position 1 is substituted by an N-(isopropyl)carboxamide group while that at position 3 is substituted by a 3,5-dichlorophenyl group. A contact fungicide, it blocks the growth of the fungal mycelium and inhibits the germination of fungal spores. It is used on fruit and vegetable crops affected by various fungal diseases. It is also used as a nematicide. | iprodione |
| isoprothiolane | A malonate ester that is diisopropyl malonate in which the two methylene hydrogens at position 2 are replaced by a 1,3-dithiolan-2-ylidene group. An insecticide and fungicide used to control a range of diseases including Pyricularia oryzae, Helminthosporium sigmoideum and Fusarium nivale. | isoprothiolane |
| kresoxim-methyl | A carboxylic ester that is the methyl ester of (2E)-(methoxyimino){2-[(2-methylphenoxy)methyl]phenyl}acetic acid. A fungicide for the control of scab on apples and pears and other fungal diseases on a wide range of crops. | kresoxim-methyl |
| liquid crystal polymer | A member of the class of oxolanes carrying 1,2,4-triazol-ylmethyl and 2,4-dichlorophenyl substituents at position 2 as well as a bromo substituent at position 4. A foliar applied conazole fungicide for a range of crops including cereals, fruit, vegetables and vines. | bromuconazole |
| mepanipyrim | A member of the class of aminopyrimidines that is N-phenylpyrimidin-2-amine carrying additional methyl and 1-propynyl substituents at positions 4 and 6 respectively. A fungicide used to control a wide range of diseases including grey mould on strawberries, tomatoes and cucumabers, and scab on apples and pears. | mepanipyrim |
| metconazole | A member of the class of cyclopentanols carrying 1,2,4-triazol-1-ylmethyl and 4-chlorobenzyl and geminal dimethyl substituents at positions 1, 2 and 5 respectively. Used to control a range of fungal infections including alternaria, rusts, fusarium and septoria diseases. | metconazole |
| metrafenone | A member of the class of benzophenones that is benzophenone in which one of the phenyl groups is substituted by methoxy groups at positions 2, 3, and 4 and by a methyl group at position 6, while the other is substituted at positions 2, 3, and 6 by methyl, bromine, and methoxy groups, respectively. A fungicide with protectant and curative properties, it is used for the control of powdery mildew in cereals and grape vines. | metrafenone |
| n-(2,3-dichloro-4-hydroxyphenyl)-1-methylcyclohexanecarboxamide | An aromatic amide resulting from the formal condensation of the carboxy group of 1-methylcyclohexanecarboxylic acid with the amino group of 4-amino-2,3-dichlorophenol. | fenhexamid |
| n-(3-chloro-4-methylphenyl)-4-methyl-1,2,3-thiadiazole-5-carboxamide | A monocarboxylic acid amide resulting from the formal condensation of the carboxy group of 4-methyl-1,2,3-thiadiazole-5-carboxylic acid with the amino group of 3-chloro-4-methylaniline. It is a fungicide used particularly for the control of fungal diseases in rice. | tiadinil |
| n-dichlorofluoromethylthio-n',n'-dimethyl-n-p-tolylsulfamide | A member of the class of sulfamides that is dichlofluanid in which the hydrogen at the para position of the phenyl group is replaced by a methyl group. A fungicide first marketed in 1971 and used in the cultivation of fruit and vegetables, as well as in wood preservatives, it is no longer approved for use in the European Union. | tolylfluanid |
| nabam | A dithiocarbamate salt that is the disodium salt of ethylenebis(dithiocarbamic acid). A fungicide, algicide and bactericide used on various crops including on cotton, capsicums, onions and rice crops, it is considered to be a carcinogen, so is not licensed for use within the European Union. Mixing nabam with zinc sulfate affords the fungicide zineb. | nabam |
| natamycin | A macrolide antibiotic that has formula C33H47NO13, produced by several Streptomyces species including Streptomyces natalensis. It exhibits broad spectrum antifungal activity and used in eye drops, and as a food preservative, and also as a postharvest biofungicide for citrus and other fruit crops. | natamycin |
| o,o-diisopropyl-s-benzylthiophosphate | An organic thiophosphate that is the S-benzyl O,O-diisopropyl ester of phosphorothioic acid. Used as a rice fungicide to control leaf and ear blast, stem rot and sheath blight. | iprobenfos |
| oryzemate | A member of the class of 1,2-benzothiazoles that is 1,2-benzothiazole 1,1-dioxide substituted at position 3 by an allyloxy group. A fungicide used to control rice blast. | probenazole |
| oxycarboxin | An anilide obtained by formal condensation of the amino group of aniline with the carboxy group of 2-methyl-5,6-dihydro-4,4-dioxo-1,4-oxathiine-3-carboxylic acid. A fungicide for the control of rust diseases on ornamentals, cereals and nursery trees as well as fairy rings on turf. | oxycarboxin |
| oxyquinoline | A monohydroxyquinoline that is quinoline substituted by a hydroxy group at position 8. Its fungicidal properties are used for the control of grey mould on vines and tomatoes. | quinolin-8-ol |
| pencycuron | A member of the class of phenylureas that is urea which is substituted by p-chlorobenzyl and cyclopentyl groups at position 1 and a phenyl group at position 3. A fungicide used to control diseases caused by Rhizoctonia solani and Pellicularia spp. It is not highly toxic to mammals but is moderately toxic to birds, most aquatic organisms, honeybees and earthworms. | pencycuron |
| phentin acetate | An organotin compound that is the O-acetyl derivative of triphenyltin hydroxide. A fungicide used to control blights on potatoes, leaf spot diseases on sugar beet and anthracnose on beans. | fentin acetate |
| picoxystrobin | An enoate ester that is the methyl ester of (2E)-3-methoxy-2-[2-({[6-(trifluoromethyl)pyridin-2-yl]oxy}methyl)phenyl]prop-2-enoic acid. A cereal fungicide used to control a wide range of diseases including brown rust, tan spot, powdery mildew and net blotch. | picoxystrobin |
| potassium bicarbonate | A potassium salt that is the monopotassium salt of carbonic acid. It has fungicidal properties and is used in organic farming for the control of powdery mildew and apple scab. | potassium hydrogencarbonate |
| prochloraz | A member of the class of ureas that is 1H-imidazole-1-carboxamide substituted by a propyl and a 2-(2,4,6-trichlorophenoxy)ethyl group at the amino nitrogen atom. A fungicide active against a wide range of diseases affecting field crops, fruit, turf and vegetables. | prochloraz |
| propamocarb | A carbamate ester that is the propyl ester of 3-(dimethylamino)propylcarbamic acid. It is a systemic fungicide, used (normally as the hydrochloride salt) for the control of soil, root and leaf diseases caused by oomycetes, particularly Phytophthora and Pythium species. | propamocarb |
| propiconazole | The cyclic ketal obtained by formal condensation of 1-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone with pentane-1,2-diol. A triazole fungicide, it is used commercially as a diastereoisomeric mixture on soft fruit (including apricots, peaches, nectarines, plums and prunes), nuts (including peanuts, pecans and almonds), mushrooms, and grasses grown for seeds. | propiconazole |
| propineb | A polymeric complex of zinc with the propylene 1,2-bis(dithiocarbamate) anionic ligand. A fungicide, it is used to control a wide range of fungal diseases, including downy mildew, brown rot, black rot, red fire, leaf spot, and blight in crops such as grapes, tomatoes, potatoes, berries, citrus, rice and tea. | propineb |
| pyrachlostrobin | A carbamate ester that is the methyl ester of [2-({[1-(4-chlorophenyl)-1H-pyrazol-3-yl]oxy}methyl)phenyl]methoxycarbamic acid. A fungicide used to control major plant pathogens including Septoria tritici, Puccinia spp. and Pyrenophora teres. | pyraclostrobin |
| pyrazophos | A member of the class of pyrazolopyrimidines that is the ethyl ester of 2-[(diethoxyphosphorothioyl)oxy]-5-methylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid. A profungicide (by hydrolysis of the thionophosphate group to afford the corresponding 2-hydroxypyrazolopyrimidine fungicide), it is used to control Erysiphe, Helminthosporium and Rhynchospium in cereals. | pyrazophos |
| pyrimethanil | A member of the class of aminopyrimidines that is N-phenylpyrimidin-2-amine carrying two additional methyl substituents at positions 4 and 6. A fungicide used to control grey mould on fruit, vegetables and ornamentals as well as leaf scab on pome fruit. Also commonly employed to control Botrytis cinerea throughout the winemaking process in grapes, must, fermenting must and wine. | pyrimethanil |
| quinoxyfen | A member of the class of quinolines carrying two chloro substituents at positions 5 and 7 together with a 4-fluorophenoxy substituent at position 4. A fungicide used mainly to control powdery mildew in cereals. | quinoxyfen |
| quintozene | A C-nitro compound that is nitrobenzene in which every hydrogen has been replaced by a chlorine. A fungicide used on a variety of crops, including cotton, rice and seed grains, it is no longer approved for use within the European Union. | pentachloronitrobenzene |
| s-methyl benzo(1,2,3)thiadiazole-7-carbothioate | A benzothiadiazole that is the S-methyl thioester derivative of acibenzolar. A profungicide (by hydrolysis of the thioester group to give the corresponding carboxylic acid), it is used as a fungicide and plant activator on a variety of crops, including cotton, chili peppers, lettuce, onions, spinach, tobacco, and tomatoes. | acibenzolar-S-methyl |
| spiroxamine | The spiroketal resulting from the formal condensation of 4-tert-butylcyclohexanone with 3-[ethyl(propyl)amino]propane-1,2-diol. An inhibitor of ergosterol synthesis, it is a broad spectrum agricultural fungicide used particularly against powdery mildew in the production of cereals, bananas and grapes. | spiroxamine |
| streptomycin | A amino cyclitol glycoside that consists of streptidine having a disaccharyl moiety attached at the 4-position. The parent of the streptomycin class | streptomycin |
| tecnazene | A C-nitro compound that is nitrobenzene in which the four hydrogens located ortho- and para- to the nitro group have been replaced by chlorines. A fungicide used to control dry rot, it is no longer approved for use within the European Union. | tecnazene |
| tetrachloroisophthalonitrile | A dinitrile that is benzene-1,3-dicarbonitrile substituted by four chloro groups. A non-systemic fungicide first introduced in the 1960s, it is used to control a range of diseases in a wide variety of crops. | chlorothalonil |
| thiabendazole | A member of the class of benzimidazoles carrying a 1,3-thiazol-4-yl substituent at position 2. A mainly post-harvest fungicide used to control a wide range of diseases including Aspergillus, Botrytis, Cladosporium and Fusarium. | thiabendazole |
| thifluzamide | An aromatic amide obtained by formal condensation of the carboxy group of 2-methyl-4-(trifluoromethyl)thiazole-5-carboxylic acid with the amino group of 2,6-dibromo-4-(trifluoromethoxy)aniline. Used to control Rhizoctonia spp. diseases on rice, potatoes, maize, grass and other crops. | thifluzamide |
| thiophanate | A member of the class of thioureas that is the dimethyl ester of (1,2-phenylenedicarbamothioyl)biscarbamic acid. A fungicide effective against a broad spectrum of diseases in fruit, vegetables, turf and other crops including eyespot, scab, powdery mildew and grey mould. | thiophanate-methyl |
| thiram | An organic disulfide that results from the formal oxidative dimerisation of N,N-dimethyldithiocarbamic acid. It is widely used as a fungicidal seed treatment. | thiram |
| tolclofos-methyl | An organic thiophosphate that is 2,6-dichloro-4-methylphenol in which the hydrogen of the hydroxy group group has been replaced by a dimethoxyphosphorothioyl group. Tolclofos-methyl is a phospholipid biosynthesis inhibitor and fungicide that is used for controlling soil-borne diseases caused by Typhula incarnata, Corticium rolfsii, Typhula ishikariensis, and Rhizoctonia solani. | tolclofos-methyl |
| triadimenol | A member of the class of triazoles that is 3,3-dimethyl-1-(1,2,4-triazol-1-yl)butane-1,2-diol substituted at position O1 by a 4-chlorophenyl group. A fungicide for cereals, beet and brassicas used to control a range of diseases including powdery mildew, rusts, bunts and smuts. | triadimenol |
| tricyclazole | A triazolobenzothiazole that is [1,2,4]triazolo[3,4-b][1,3]benzothiazole which is substituted at position 5 by a methyl group. A fungicide used for the control of rice blast, it is not approved for use within the European Union. | tricyclazole |
| tridemorph | A member of the class of morpholines that is 2,6-dimethylmorpholine in which the hydrogen attached to the nitrogen is replaced by a tridecyl group. The configuration at positions 2 and 6 is unknown or unspecified. | 2,6-dimethyl-4-tridecylmorpholine |
| trifloxystrobin | The methyl ester of (2E)-(methoxyimino)[2-({[(E)-{1-[3-(trifluoromethyl)phenyl]ethylidene}amino]oxy}methyl)phenyl]acetic acid. A foliar applied fungicide for cereals which is particularly active against Ascomycetes, Deuteromycetes and Oomycetes | trifloxystrobin |
| triforine | A member of the class of N-alkylpiperazines in which the two amino groups of piperazine are replaced by 1-formamido-2,2,2-trichloroethyl groups. A fungicide active against a range of diseases including powdery mildew, scab and rust. | triforine |
| triphenyltin chloride | An organotin compound that is triphenylstannane in which the hydrogen attached to tin is replaced by a chloro group. A fungicide used to control blights on potatoes, leaf spot diseases on sugar beet and anthracnose on beans. | fentin chloride |
| uniconazole-p | A (1E)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol that has S configuration at the chiral centre. It is the enantiomer of (R)-uniconazole; the fungicide and plant growth retardant uniconazole is the racemic mixture comprising (R)-uniconazole and uniconazole-P. | uniconazole P |
| validamycin a | A member of the class of validamycins that is (1R,2S,3S,4S,6R)-4-amino-6-(hydroxymethyl)cyclohexane-1,2,3-triol in which the hydroxy group at position 1 has been converted to its beta-D-glucoside and in which one of the hydrogens attached to the nitrogen is replaced by a (1R,4R,5R,6S)-4,5,6-trihydroxy-3-(hydroxymethyl)cyclohex-2-en-1-yl group. It is the major validamycin produced by Streptomyces hygroscopicus. | validamycin A |
| zinc dibutyldithiocarbamate | A dithiocarbamate salt that is the zinc salt of dibutyldithiocarbamic acid. | zinc dibutyldithiocarbamate |
| zineb | A polymeric complex of zinc with the ethylene bis(dithiocarbamate) anionic ligand. Formerly used as an agricultural fungicide for the control of downy mildews and rusts, its use is no longer permitted in the US or the EU. | zineb |
| ziram | A dithiocarbamate salt that is the zinc salt of dimethyldithiocarbamic acid. It is a broad-spectrum fungicide and bird and animal repellent that is also used to accelerate the vulcanisation of rubber. | ziram |