Weed Response to Selected Herbicides

Alexandergrass (Brachiaria plantaginea)

Annual

E

Alligatorweed (Alternanthera philoxeroides)

Perennial

P

N

Amaranth,** green (Amaranthus hybridus)

Annual

E

E

E

E

E

E

E

Amaranth, palmer (A. palmeri)

Annual

E

E

E

E

E

E

Amaranth, spiny (A. spinosus)

Annual

E

G

G

E

E

E

E

Ammannia, pink (Ammania teres)

Annual

E

E

E

E

Amorpha, leadplant* (Amorpha, canescens)

Perennial

F

G

Angelica, purplestem (Angelica atropurpurea)

Perennial

G

P

F

G

E

G

E

Anoda, spurred (Anoda cristata)

Annual

G

G

F

G

E

E

E

Arrowgrass, seaside (Triglochin maritima)

Perennial

F

G

E

F

E

Arrowhead, annual (Sagittaria calycina)

Annual

E

E

E

G

E

F

E

Arrowhead, perennial (S. longiloba)

Perennial

F

F

E

Aster, many-flowered (Aster ericoides)²

Perennial

G

E

E

G

G

Aster, slender (A. exilis)

Perennial

E

E

G

E

E

Aster, smooth (A. laevis)

Perennial

G

F

F

G

E

E

G

Aster, white heath (A. pilosus)

Perennial

F

N

F

E

G

G

Balloonvine (Cardiospermum halicacabum)

Perennial

G

E

Baneberry, red (Actaea rubra)

Perennial

F

G

G

Barley, little (Hordeum pusillum)

Annual

N

N

N

N

N

E

E

Beardgrass, bushy (Andropogon glomeratus)

Perennial

N

N

N

N

N

Bedstraw, cleavers (Gallium aparine)

Perennial

P

N

F

N

G

E

E

E

Beeplant, Rocky Mountain (Cleome serrulate)

Annual

F

Beggarticks, bearded (Bidens aristosa)

Biennial

E

E

E

E

E

E

E

Beggarticks, devils (B. frondosa)

Annual

E

E

E

E

E

E

Beggarticks, leafbract (B. comosa)

Annual

E

E

E

E

E

E

E

Beggarticks, nodding (B. cernua)

Annual

E

E

E

E

E

E

E

Bellflower, creeping* (Campanula rapunculoides)

Perennial

P

P

P

F

E

F

E

Bentgrass, creeping (Agrostis stolonifera)

Perennial

N

N

N

N

N

G

E

Bindweed, field (Convolvulus arvensis)

Perennial

G

G

F

F

G

G

P

G

Bindweed, hedge (C. sepium)

Perennial

G

G

G

G

P

G

Bittercress, hairy (Cardamine hirsuta)

Annual

G

E

E

E

E

E

E

Blackeyed susan* (Rudbeckia serotina)

Perennial

G

E

E

E

E

Bouncingbet (Saponaria officinalis)

Perennial

P

N

N

G

F

E

F

Bracken (Pteridium aquilinum)

Perennial

N

N

P

N

G

F

P

G

Brome, downy (Bromus tectorum)

Annual

N

N

N

N

P

E

E

Brome, field (B. arvenis)

Annual

N

N

N

N

N

E

G

Brome, Japanese (B. japonicus)

Annual

N

N

N

N

P

E

E

Broomsedge (Andropogon virginicus)

Perennial

N

N

N

N

N

F

E

Broomweed (Gutierrezia dracunculoides)²

Annual

G

G

E

F

F

Buffalobur* (Solanum rostratum)

Annual

F

P

P

F

G

F

G

Bullnettle (Cnidoscolus stimulosus)

Perennial

G

F

G

G

G

G

Bulrush (Scirpus spp.)

Perennial

F

F

N

Burcucumber (Sicyos angulatus)

Annual

P

F

P

E

E

E

Burdock, common (Arctium minus)

Biennial

E

E

E

E

E

F

G

Bur-head (Echinodorus cordifolious)

Annual

E

E

Burroweed* (Haplopappus tenuisectus)

Perennial

G

E

E

Buttercup, celery leaf (Ranunculus sceleratus)

Annual

F

G

Buttercup, corn (R. arvensis)

Annual

G

E

G

E

F

F

G

Buttercup, creeping (R. repens)

Perennial

G

E

F

G

G

F

G

Canarygrass, reed (Pharlaris arundinacea)

Perennial

N

N

N

N

N

G

G

Carpetgrass (Axonopus affinis)

Perennial

F

P

P

F

F

E

E

Carpetweed (Mollugo verticillate)

Annual

E

G

E

E

E

E

E

Carrot, wild (Daucus carota)

Biennial

F

F

P

F

G

G

E

G

Catsear, spotted (Hypochoeris radicata)

Perennial

G

E

E

E

E

E

Cattail, broadleaf (Typha latifolia)

Perennial

F

P

P

G

G

G

G

Cattail, narrowleaf (T. angustifolia)

Perennial

F

P

P

G

G

Chamomile, corn (Anthemis arvensis)

Biennial

F

G

G

G

E

E

E

Cheat (Bromus secalinus)

Annual

N

N

N

N

F

E

E

Chervil, wild (Chaerophyllum tainturieri)

Annual

F

G

E

Chess, hairy (Bromus commutatus)

Annual

N

N

N

N

N

E

E

Chickweed, common (Stellaria media)

Annual

F

P

E

F

E

E

G

E

Chickweed, field (Cerastium arvense)

Perennial

F

P

P

E

E

F

E

Chickweed, mouseear (C. vulgatum)

Perennial

F

P

E

P

E

E

G

E

Chickweed, sticky (C. viscosum)

Annual

G

G

E

E

E

E

E

Chicory (Cichorium intybus)

Perennial

G

G

P

F

E

E

G

G

Cinquefoil, common* (Potentilla canadensis)

Perennial

G

F

E

E

E

E

Cinquefoil, sulfur (P. recta)

Perennial

G

F

E

E

E

E

Clover, hop (Trifolium agrarium)

Annual

F

F

G

E

Clover, white (T. repens)

Perennial

F

E

E

F

Cockle, corn (Agrostemma githago)

Annual

P

P

N

G

E

E

E

Cocklebur, common* (Xanthium pensylvanicum)

Annual

E

F

E

G

E

E

E

E

Coffeeweed* (Daubentonia texana)

Woody

E

E

E

E

Coreopsis, plains (Coreopsis tinctoria)

Annual

E

G

E

E

G

E

E

Cornflower, bachelor’s button (Centaurea cyanus)

Annual

E

E

E

E

E

Costmary* (Chrysanthemum balsamita)

Perennial

F

F

F

F

E

G

G

Cranebill, cutleaf (Geranium dissectum)

Annual

E

E

Creeper, Virginia (Parthenocissus quinquefolia)

Woody

P

P

P

F

F

F

G

Creeper, mouseear (Arabidopsis thaliana)

Annual

E

E

E

E

E

E

E

E

Croton, wooly (C. capitatus)

Annual

E

E

E

E

Crown vetch (Coronilla varia)

Perennial

G

G

G

E

E

G

G

Cudweed (Gnaphalium peregrinum)

Annual

N

E

E

G

Daisy, oxeye (Chrysanthemum leucanthemum)

Perennial

F

F

N

E

E

G

G

Dallisgrass (Paspalum dilatatum)

Perennial

N

N

N

N

N

G

F

Dandelion (Taraxacum officinale)

Perennial

E

E

F

G

E

E

G

G

Darnel (Lolium temulentum)

Annual

E

Dayflower (Commelina communis)

Annual

F

G

P

F

P

E

E

Deadnettle, red (Lamium purpureum)

Annual

P

P

P

E

E

E

E

Devil’s claw (Proboscidea louisianica)

Annual

E

E

E

E

Dock, broadleaf (Rumex obstusifolius)

Perennial

F

F

F

F

E

E

E

E

Dock, curly (R. crispus)

Perennial

F

F

F

F

E

E

G

G

Dock, fiddle (R. pulcher)

Perennial

E

F

G

E

E

E

Dock, pale (R. latissimus)

Perennial

G

G

F

P

G

E

E

E

Dodder, largeseed (Cuscuta indecora)

Annual

P

N

N

E

Dodder, smallseed alfalfa (C. pentagona)

Annual

P

N

N

Dogbane, hemp (Apocynum cannabinum)

Perennial

F

P

P

F

G

G

G

Duckweed, common (Lemna minor)

Annual

P

N

N

G

N

Eveningprimrose, common (Oenothera biennis)

Biennial

E

E

E

E

False boneset (Kuhnia eupatorioldes)

Perennial

G

F

F

F

E

G

G

Fennel, dog (Eupatorium capillifolium)

Annual

G

N

E

E

G

Fescue, sixweeks (Vulpia octoflora)

Annual

N

N

N

N

N

E

E

Fieldcress, yellow (Rorippa sylvestris)

Perennial

G

F

F

F

G

G

G

Fleabane, annual (Erigeron annuus)

Annual

F

F

E

E

E

E

E

Fleabane, rough (E. strigosus)

Annual

G

E

E

E

E

Florida betony (Stachys floridana)

Perennial

P

F

G

E

G

Foxtail, meadow* (Alopecurus pratensis)

Perennial

N

N

N

P

N

E

E

Galinsoga, hairy (Galinsoga ciliata)

Annual

G

E

E

E

G

E

Galinsoga, smallflower (G. parviflora)

Annual

E

G

G

E

E

E

E

Garlic, wild (Allium vineale)

Perennial

F

P

P

F

G

F

P

Geranium, Carolina (Geranium carolinianum)

Annual

G

E

E

E

E

E

E

Goldenrod (Solidago spp.)

Perennial

F

F

G

E

P

E

Gooseweed (Sphenoclea zeylanica)

Annual

F

P

N

Gourd, buffalo (Curcurbita foetidissima)

Perennial

P

Gromwell* (Lithospermum officinale)

Perennial

N

E

Groundcherry,* clammy (Physalis heterophylla)

Perennial

N

N

E

E

Groundivy (Glechoma hederacea)

Perennial

F

P

F

N

G

E

G

Groundsel, cressleaf (Senecio glabellus)

Annual

E

E

G

E

Hairgrass, silver (Aira caryophyllea)

Annual

N

N

N

N

N

E

Healall (Prunella vulgaris)

Perennial

G

N

P

N

G

G

Henbit (Lamium amplexicaule)

Annual

P

P

G

P

E

E

E

E

Hogpeanut (Amphicarpa bracteate)

Perennial

E

Hollycock (Althea rosea)

Biennial

E

G

G

G

E

G

E

Honeysuckle (Lonicera japonica)

Perennial

F

E

G

E

E

G

Horehound, white (Marrubium vulgare)

Perennial

E

G

G

Horsenettle, Carolina (Solanum carolinense)

Perennial

P

N

P

F

G

F

G

Horsetail, field (Equisetum arvense)²

Perennial

P

F

P

N

F

G

P

Horseweed, marestail (Conyza canadensis)

Annual

F

F

F

E

E

E

E

Indiantobacco (Lobelia inflata)

Annual

F

E

Iris, Rocky Mountain* (Iris missouriensis)

Perennial

F

Ironweed, western* (Vernonia baldwinii)

Perennial

F

P

G

E

E

Ivy, English (Hedera helix)

Perennial

E

E

E

F

Jerusalem artichoke (Helianthus tuberosus)

Perennial

F

P

F

P

F

Jewelweed* (Impatiens pallida)

Annual

E

E

E

E

E

Jimsonweed (Datura stramonium)

Annual

P

P

P

F

E

G

E

Johnsongrass (Sorghum halepense)

Perennial

N

N

N

N

N

P

E

Knawel (Scleranthus annuus)

Annual

N

N

G

E

E

E

E

Knotweed, prostrate (Polygonum paviculare)

Annual

P

P

P

E

E

G

E

Kudzu (Pueraria lobata)

Perennial

F

F

G

E

G

G

Lambsquarters (Chenopodium album)

Annual

E

E

E

E

E

E

E

E

Lespedeza (Lespedeza striata)

Annual

P

G

G

G

Lespedeza, sericea (L. cuneata)

Perennial

P

G

G

F

Lettuce, blue* (Lactuca pulchella)

Perennial

F

F

F

G

E

F

G

Lettuce, wild (L. serriola)

Annual

E

E

E

E

E

E

Maidencane (Panicum hemitomon)

Perennial

E

Marshelder* (Iva xanthifolia)

Annual

E

G

E

E

E

G

E

Mayweed, dogfennel (Anthemis cotula)

Annual

F

P

N

E

E

E

Medic, black (Medicago lupulina)

Annual

F

F

G

P

G

E

G

G

Mexican weed (Caperonia palustris)

Annual

F

F

N

E

Mexicantea (Chenopodium ambrosioides)

Annual

E

E

E

E

E

E

E

Milkweed

Perennial

G

N

P

G

G

G

Milkweed, butterfly (Asclepias tuberosa)

Perennial

P

N

P

P

G

G

G

Milkweed, eastern whorled (A. verticillata)

Perennial

N

N

N

G

F

F

G

Milkweed, green (A. viridiflora)

Perennial

P

N

P

P

G

F

G

Milkweed, purple (A. purpurascens)

Perennial

P

N

P

P

G

E

G

Milkweed, swamp (A. incarnata)

Perennial

P

N

N

P

G

F

G

Moneywort (Lysimachia nummularia)

Perennial

E

G

Morningglory, bigroot (Ipomoea pandurate)

Perennial

F

P

N

P

F

P

F

Morningglory, common (I. purpurea)

Annual

E

E

E

E

E

E

Morningglory, ivyleaf (I. hederacea)

Annual

E

E

E

E

E

E

Mudplantain (Heteranthera limosa)

Perennial

E

G

P

F

Mugwort (Artemisia vulgaris)

Perennial

P

N

F

G

F

Mullein, common (Verbascum Thapsus)

Biennial

P

P

N

G

E

G

G

Mullein, moth (V. blattaria)

Biennial

F

F

G

G

E

Mustard, black (Brassica nigra)

Annual

E

E

E

E

G

G

E

Mustard, Indian (Brassica juncea)

Annual

E

E

E

E

E

E

E

Mustard, treacle (Erysimum repandum)

Annual

G

G

F

Nettle, stinging (Urtica dioica)

Perennial

G

G

G

G

G

Nightshade, black (Solanum nigrum)

Annual

F

F

N

F

G

E

G

E

Nightshade, silverleaf (S. elaeagnifolium)

Perennial

P

G

E

F

E

Nimblewill (Muhlenbergia schreberi)

Perennial

N

N

N

N

N

G

E

Nutsedge, purple (Cyperus rotundus)

Perennial

P

N

N

P

P

F

G

Nutsedge, yellow (C. esculentus)

Perennial

F

N

N

N

F

F

F

Onion, wild (Allium canadense)

Perennial

F

P

P

F

P

F

F

Partridgepea (Cassia chamoccrista)

Annual

E

E

E

E

E

Paspalum, field (Paspalum leave)

Perennial

E

Passionflower, maypop (Passiflora incarnata)

Perennial

F

F

F

F

Pellitoryweed (Parietaria floridana)²

Annual

N

N

N

Pepperweed, Virginia (Lepidium virginicum)

Annual

E

E

E

E

E

E

E

Pickerelweed (Pontederia cordata)

Perennial

G

Pigweed, redroot (Amaranthus retroflexus)

Annual

E

E

E

E

E

E

E

E

Pigweed, tumbleweed (A. graecizans)

Annual

E

E

E

E

E

E

E

E

Pimpernel, scarlet (anagallis arvensis)

Annual

E

G

F

E

E

E

E

Plantain, blackseed (Plantago rugelii)

Perennial

E

E

P

E

E

E

E

E

Plantain, bracted (P. aristate)

Annual

E

G

P

G

E

E

E

E

Plantain, broadleaf (P. major)

Perennial

E

E

P

E

G

E

G

G

Plantain, buckhorn (P. lanceolata)

Perennial

E

G

P

E

G

E

E

E

Poison ivy (Toxicodendron radicans)

Woody

F

F

N

G

E

E

G

Poison oak (T. toxcarium)

Woody

F

P

N

F

G

E

G

Pokeweed (Phytolacca americana)

Perennial

F

F

G

E

E

E

Pondweed (Potamogeton spp.)

Perennial

E

N

Ponyfoot (Dichondra repens)

Perennial

E

G

E

E

E

E

Poorjoe (Diodia teres)

Annual

G

F

F

E

E

E

E

Povertygrass (Aristida dichotoma)

Annual

N

N

N

N

N

E

E

Puncturevine (Trebulus terrestris)²

Annual

G

F

G

E

E

F

E

Purslane, common (Portulaca oleracea)

Annual

F

F

G

G

E

E

G

E

Pusley, Florida (Richardia scabra)

Annual

E

E

E

Pussytoes, plantainleaf (Antennaria plantaginifolia)

Perennial

G

G

F

G

E

E

E

Queensdelight (Stillingia sylvatica)

Perennial

N

Radish, wild (Raphanus raphanistrum)

Annual

G

F

F

E

E

E

E

Ragweed, common (Ambrosia artemisiifolia)

Annual

F

P

E

G

E

E

E

E

Ragweed, giant (A. trifida)

Annual

F

P

G

E

E

E

E

Ragweed, lanceleaf (A. bidentata)

Annual

E

E

G

E

E

E

E

Ragweed, western (A. psilostachya)

Perennial

G

G

E

E

Rape, bird (Brassica rapa)

Biennial

E

E

E

G

Redstem (Ammannia coccinea)

Annual

E

E

G

Redvine (Brunnichia cirrhosa)

Perennial

N

N

N

G

G

G

Reed, common (Phragmites australis)

Perennial

G

Reed, giant (Arundo donax)

Perennial

N

N

N

N

N

Sandbur, field (Cenchrus incertus)

Perennial

N

N

N

N

N

G

E

Sandbur, longspine (C. longispinus)

Annual

N

N

N

N

N

E

E

Sandbur, southern (C. echinatus)

Annual

E

Sandwort, thymeleaf (Arenaria serpyllifolia)

Annual

E

G

E

Sedge, hop (Carex lupulina)

Perennial

N

N

N

N

N

G

Senna, coffee (Cassia occidentalis)

Annual

G

P

P

E

E

E

E

Senna, sensitive (C. nictitans)

Annual

G

F

P

E

E

E

E

Senna, sicklepod (C. obtusifolia)

Annual

F

P

P

E

E

E

E

Senna, wild (C. marilandica)

Perennial

P

P

N

G

G

G

E

Sesbania, coffeebean (Sesbania exaltata)

Annual

F

G

F

E

E

G

Shepherdspurse (Capsella bursa-pastoris)

Annual

G

G

G

E

E

E

E

Sida, prickly (Sida spinosa)

Annual

E

G

P

E

E

E

E

Signalgrass, broadleaf (Brachiaria platyphylla)

Annual

N

N

G

G

Smartweed, ladysthumb (Polygonum persicaria)

Annual

G

F

F

G

E

E

E

E

Smartweed, Pennsylvania (P. pensylvanicum)

Annual

G

F

G

E

E

E

E

Smartweed, water (P. amphibium)

Perennial

P

P

P

F

F

F

G

Snakeroot, white (Eupatorium rugosum)

Perennial

F

Snakeweed

Sneezeweed (Helenium autumnale)

Perennial

G

G

F

F

G

G

G

Sneezeweed, bitter (H. amarum)

Annual

E

E

G

E

E

E

Snow-on-the-mountain (Euphorbia marginata)

Annual

F

F

E

E

F

G

Sorrel

Perennial

G

F

F

E

E

E

E

Sorrel, heartwing (Rumex hastatulus)

Perennial

E

E

E

E

Sorrel, red (R. acetosella)

Perennial

N

N

N

N

E

E

G

E

Sowthistle, annual (Sonchus oleraceus)

Annual

E

E

E

E

E

E

E

Sowthistle, perennial (S. arvensis)

Perennial

F

F

F

G

G

G

G

Sowthistle, spiny (S. asper)

Annual

E

E

E

E

E

E

Spanishneedles (Bidens bipinnata)

Annual

E

G

G

E

E

E

E

Spatterdock (Nuphur lutea macrophylla)

Perennial

E

Speedwell, corn (V. arvensis)

Annual

P

N

N

F

Speedwell, purslane (V. peregrina)

Annual

F

N

F

F

Spikerush

Perennial

F

F

P

Spurge, flowering (Euphorbia corollate)

Perennial

P

G

E

Spurge, spotted (E. maculata)

Annual

P

F

F

P

E

E

F

G

Spurry, corn (Spergula arvensis)

Annual

P

F

G

N

G

E

St. Johnswort (Hypericum perforatum)

Perennial

P

N

St. Johnswort, spotted (H. punctatum)

Perennial

F

Starbur, Paraguay (Acanthospermum australe)

Annual

P

N

N

G

E

E

Strawberry, wild (Fragaria spp.)

Perennial

P

N

N

N

G

G

E

G

Sumpweed, rough (Iva ciliate)

Annual

E

E

E

Sunflower (Helianthus annuus)

Annual

E

G

E

E

E

G

E

Sweetclover, annual yellow (Melilotus indica)

Annual

E

E

E

E

E

E

E

Sweetflag (Acorus calamus)²

Perennial

G

E

Swinecress (Coronopus didymus)

Biennial

E

G

F

E

E

E

Thistle, bristly (Cirsium horridulum)

Biennial

F

E

E

Thistle, milk (Silybum marianum)

Biennial

E

G

E

Thistle, musk (Carduus nutans)

Biennial

E

F

F

G

E

E

E

Threeawn, prairie (Aristida oligantha)

Annual

N

N

N

N

N

G

E

Threeawn, red (A. longisteta)

Perennial

N

N

N

N

N

F

F

Tickseed (Coreopsis tinctoria)

Annual

G

E

E

Toadflax, blue (Linaria canadensis)

Perennial

P

Torpedograss (Panicum repens)

Perennial

G

Trumpetcreeper (Campsis radicans)

Perennial

P

N

N

G

E

G

G

Velvetleaf (Abutilon theophrasti)

Annual

G

G

F

F

E

E

E

Velvetgrass (Holcus lanatus)

Perennial

N

N

N

N

N

G

E

Vervain, blue (Verbena hastata)

Perennial

E

E

Vervain, hoary (V. stricta)

Perennial

G

Vervain, prostrate (V. bracteata)

Perennial

E

Vervain, roadside (V. bonariensis)

Perennial

G

E

Vetch, narrowleaf (Vicia angustifolia)

Annual

E

F

E

E

G

E

Vetch, wild (Vicia spp.)

Annual

E

E

F

E

E

E

E

G

Violet (Viola spp.)

Perennial

P

N

N

F

G

G

G

Waterhyacinth (Eichhornia crassipes)

Perennial

G

G

Waterhemlock, spotted (Cicuta maculata)

Perennial

G

E

E

E

G

Waterhemp (Amaranthus tamariscinus)

Annual

E

E

E

E

E

E

E

Waterhemp, tall (A. tuberculatus)

Annual

E

E

E

E

E

E

E

Waterweed, Canada (Elodea canadensis)

Perennial

F

Windmillgrass (Chloris verticillata)

Perennial

N

N

N

N

N

F

G

Wintercress, early (Barbarea verna)

Perennial

E

G

G

E

E

E

E

Witchgrass (Panicum capillare)

Annual

N

N

N

N

N

E

E

Woodsorrel, yellow (Oxalis stricta)

Perennial

P

N

G

E

E

Wormwood, annual (Artemisia annua)

Annual

G

F

N

E

E

Wormwood, Louisiana (Artemisia ludoviciana)

Perennial

F

P

P

G

E

F

G

Yankeeweed (Eupatorium compositifolium)

Perennial

F

E

Yarrow, common (Achillea millefolium)

Perennial

P

P

F

N

G

E

F

G

Yellow rocket (Barbarea vulgaris)

Perennial

F

G

F

G

E

G

E