HERBICIDE
HERBICIDE
Herbicide(s), also commonly known as weedkillers, are chemical substances used to control unwanted plants.
Selective herbicides control specific weed species, while leaving the desired crop relatively unharmed, while non-selective herbicides (sometimes called "total weedkillers" in commercial products) can be used to clear waste ground, industrial and construction sites, railways and railway embankments as they kill all plant material with which they come into contact.
Apart from selective/non-selective, other important distinctions include persistence (also known as residual action: how long the product stays in place and remains active), means of uptake (whether it is absorbed by above-ground foliage only, through the roots, or by other means), and mechanism of action (how it works). Historically, products such as common salt and other metal salts were used as herbicides, however these have gradually fallen out of favor and in some countries a number of these are banned due to their persistence in soil, and toxicity and groundwater contamination concerns. Herbicides have also been used in warfare and conflict.
Structural Formula
Chemical Composition
2,4-D dimethylamine salt; 2008-39-1; Amicide; Herbitex; Morselect; Phordene
Weeds
Alfalfa, Horseweed or marestail, Ragweed-commonBindweed, Ironweed Ragweed-giant, Bullnettle Lambsquarters-common, Shepherdspurse, Bittercress-smallflowered, Lettuce-prickly, Smartweed-Pennsylvania, Carolina geranium, Morningglory-annual, Sowthistle-annual, Cinquefoil-common and rough, Mousetail Speedwell, Clover-red, Mustard-wild , Thistle-Canada,Cocklebur-common, Onion-wild, Thistle-bull, Dandelion,Pennycress-field, Velvetleaf, Eveningprimrose-cutleaf, Peppergrass, Vetch-hairy,Garlic-wild, Purslane-common, Virginia copperleaf.
Structural Formula
Bensulfuron-Methyl
Quinclorac
Chemical Composition
Bensulfuron-Methyl
-Methyl-α-[(4,6-dimethoxypyrimidin-2-ylcarbamoyl)sulfamoyl]-o-toluatQuinclorac
-3,7-Dichloro-8-quinolinecarboxylic acidWeeds
Pigweed, Chickweed, Wild mustard, Stinkgrass, Barnyardgrass, Rice flatsedge, Dwarf umbrella grass, Nut-grass, Creeping water primrose, Crabgrass, Barnyard grass, Foxtail, Clover, Dollarweed, Morning glory, Wild violet, Speedwell, Daisy, Black medic.
Structural Formula
Chemical Composition
3-(3,4-dichlorophenyl)-1,1-dimethylurea
Weeds
Annual Broadleaf weeds and some, annual grasses, Amaranthus, Barley grass, Barnyard grass, Capeweed, Cobbler’s pegs, Crowsfoot grass, Fat hen, Guinea grass, Mustard, Pigweed, Prince of Wales feather, Sowthistle, Summer grass, Wild turnip, Amsinckia (Yellow burr), Charlock, Dead nettle, Poppies, Sheepweed (White ironweed), Three cornered Jack (Double gee)Seedlings of Capeweed, Spiny emexSuppression of Wild radish, Wild turnip, Clovers, Medics, suppression only of Dock, Sorrel, Wireweed, Crowsfoot grass, Guinea grass, Wild oats, Prince of Wales feather, Fat hen, Charlock, Iceplant, Melilotus, Rough poppy, Saffron thistle, Sheepweed, Yellow burr weed.
Structural Formula
Chemical Composition
5-(2-chloro-α,α,α-trifluoro-p-tolyloxy)-N-mesyl-2-nitrobenzamide
Weeds
pigweed (Amaranthus spp.), black nightshade (Solarium nigrum L.), velvetleaf (Abutilon theophrasti Medik.) and cocklebur (Xanthium spp.). common purslane (Portulaca oleracea L.) and field bindweed (Convolvulus arvensis L.).
Structural Formula
Chemical Composition
N-(Phosphonomethyl)glycine 2-propylamine (1:1)
Weeds
Annual bluegrass, Common lambsquarter, Common ragweed, Downy brome, Panicum species, Giant ragweed, Field sandbur, Foxtail species, Pennsylvania smartweed, Redroot pigweed, Shattercane,Fleabane (Erigeron species), Smooth pigweed, Volunteer wheat, Bermudagrass, Russian thistle Canada thistle,Kochia, Prickly lettuce, Common mullein(Poa species), Curly dock , Dallisgrass, Field bindweed, Velvetleaf, bluegrass, Kentucky, Fescue species, Hemp dogbane, Johnsongrass, Napiergrass, Paragrass, Quackgrass, Vaseygrass, Silverleaf nightshade, Swamp smartweed, Milkweed (Asclepias species)Wirestem Muhly .
Structural Formula
Chemical Composition
methyl (R)-2-{4-[3-chloro-5-(trifluoromethyl)-2-pyridyloxy]phenoxy}propionate
Weeds
Goose grass(Eleusine indica), Marsh grass(Echinochloa colona), Ryegrass(Lolium temulentum), Canary grass(Phalaris canariensis), Herringbone grass(Urochloa panicoides), Common wild oats(Avena fatua), Ripgut brome(Bromus diandrus), Brome grass(Bromus japonicas), Crab fingergrass(Digitaria sanguinalis).
Structural Formula
Chemical Composition
2-chloro-α,α,α-trifluoro-p-tolyl 3-ethoxy-4-nitrophenyl ether
Weeds
Amsinckia (Amsinckia spp.), Barley Grass (Hordeum leporinum), Barnyard Grass (Echinochloa spp.), Blackberry Nightshade (Solanum nigrum), Bladder Ketmia (Hibiscus trionum), Burrgrass (Cenchrus australis), Caltrop (Tribulus terrestris), Capeweed (Arctotheca calendula), Chickweed (Stellaria media), Crowsfoot Grass (Eleusine indica), Deadnettle (Lamium amplexicaule), Fat Hen (Chenopodium album), Giant Pigweed (Trianthema portulacastrum), Liverseed Grass (Urochloa panicoides), Lovegrass (Eragrostis spp.), Pigeon Grass (Setaria spp.), Prickly Lettuce (Lactuca spp.), Red Natal Grass (Rhynchelytrum repens), Redshank (Amaranthus cruentus), Ryegrass (Lolium spp.), Sesbania Pea (Sesbania cannabina), Shepherd's Purse (Capsella bursa-pastoris), Smallflower Mallow (Malva parviflora), Soursob (Oxalis pes-caprae), Sowthistle (Sonchus oleraceus), Starburr (Acanthospermum hispidum), Stinkgrass (Eragrostis cilianensis), Summer Grass (Digitaria spp.), Thornapple (Datura stramonium), WhiteEye(Richardia brasiliensis), Wild Mustard (Sisymbrium spp.), Wild Radish (Raphanus raphanistrum), Wireweed (Polygonum aviculare), Bellvine (Ipomoea spp.), Capeweed (Arctotheca calendula), Common Cotula (Cotula australis), Deadnettle (Lamium amplexicaule), Groundsel (Senecio vulgaris), Marshmallow (Malva parviflora), Pigweed (Portulaca oleracea), Potato Weed (Galinsoga parviflora), Redshank (Amaranthus cruentus), Shepherd's Purse (Capsella bursa-pastoris), Sowthistle (Sonchus oleraceus), Stinging Nettle (Urtica urens), Stinkgrass (Eragrostis cilianensis).
Structural Formula
Chemical Composition
1,1'-Dimethyl-4,4'-bipyridinium dichloride
Weeds
Datura spp, Annual ground cherry, Apple-of-Peru, Milkweed, Stagger Weed, Blue Heliotrope , Wandering Jew, Anoda Weed, Bellvine, Common Morning Glory .
Structural Formula
Chemical Composition
2-chloro-2′,6′-diethyl-N-(2-propoxyethyl)acetanilide
Weeds
Echinochloa Beauvois, Cyperus difformis, Monochoria vaginalis, Sedges, Echinochloa crusgalli, Echinochloa colonum, Cyperus difformis, Cyperus iria, Fimbristylis miliacea, Eclipta alba, Ludwigia parviflora, Monochoria vaginalis, Leptochloa chinensis, Panicum repens.
Structural Formula
QuincloracBispyribac Sodium
Chemical Composition
Quinclorac 3,7-Dichloro-8-quinolinecarboxylic acid
Bispyribac Sodium2,6-Bis((4,6-dimethoxy-2-pyrimidinyl)oxy)-benzoic acid sodium salt
Weeds
Echinochloa crusgalli, Echinochloa colonum ,Fimbristylis miliacea, Eclipta alba, Ludwigia parviflora, Monochoria vaginalis, Alternanthera philoxeroides, Sphenoclcea zeylenica, Ischaemum rugosum, Cyperus difformis, Cyperus iria.Crabgrass; Barnyard grass; Foxtail; Clover; Dollarweed; Morning glory; Wild violet; Speedwell; Daisy; Black medic.
Structural Formula
Chemical Composition
Quizalofop-p-ethyl; Assure II; Targa Super; 100646-51-3; Quizalofop-P-ethyl [ISO]; DPX-Y6202-31
Weeds
Crowsfoot Grass (Eleusine indica), Foxtail Millet (Setaria italic), Columbus Grass (Sorghum x almum), Johnson Grass (Sorghum halepense), Liverseed Grass (Urochloa panicoides), Rhodes Grass (Chloris gayana), StinkGrass (Eragrostis cilianensis), Queensland Blue Grass (Dichanthium sericeum), Summer Grass (Digitaria ciliaris), Awnless Barnyard Grass (Echinochloa colona), Paspalum (Paspalum dilatatum), Kikuyu(Pennisetum Clandestinum), Bentgrass, Volunteer cereals, Perennial ryegrass, Italian ryegrass, Couch, Annual Ryegrass (Lolium rigidum), Brome Grasses (Bromus spp.),Barley Grass (Hordeum spp.), Couch grass (Cynodon dactylon), Barnyard Grass (Echinochloa crusgalli), Dinebra (Dinebra retroflexa).
Structural Formula
Chemical Composition
2,6-Dinitro-N,N-dipropyl-4-(trifluoromethyl)aniline
Weeds
Annual Ryegrass, Paradoxa Grass (Canary Grass), Wireweed(Hogweed), BlackPigweed. Suppression of Climbing Buckwheat(Black Bindweed), soil surface Wild Oats, Deadnettles, Wild Oat, Canary Grass,Sand Fescue, Suppression of Deadnettle, Yellow Burr weed, Cereal Oats, Red & White Fumitory,Rough Poppy, BarleyGrass, Canary Grass,Sand Fescue, Speedwell,Three Cornered Jack,Yellow Burr weed, BromeGrass, Cereal Oats, Amaranthus, Barnyard Grass, Caltrop, Crab Grass, Paradoxa Grass (Canary Grass), Pigweed, Winter Grass, Suppression of Fumitory, Capeweed, Corn Gromwell (Sheepweed), Fumitories, Geranium, Ivy Leaf Speedwell, Mustards, Turnips, Wireweed. Soursob, Canary Grass,Crowsfoot Grass,Spiny Burrgrass,Summer Grass, Suppression of YellowVine (Caltrop), From seedonly: Columbus Grass,Guinea Grass, JohnsonGrass, Liverseed Grass, Mossman River Grass (Innocent Weed), Redroot(Amaranthus), Redshank(Prince of Wales Feather), From seed only: Columbus Grass, Guinea Grass, Johnson Grass, Liverseed Grass(Urochloa), Canary Grass, Caltrop (Bullhead/ Yellow Vine) Phalaris spp.