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Weed Response to Selected Herbicides

Susceptibility of common weeds to control by phenoxy and some other systemic herbicides

[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U-V] [W] [Y-Z]

 

A

green (Amaranthus hybridus)

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Alexandergrass (Brachiaria plantaginea)








E

Alligatorweed (Alternanthera philoxeroides)


P

N






Amaranth

E

E

E

E

E

E

E

palmer (A. palmeri)

E

E


E

E

E

E

spiny (A. spinosus)

E

G

G

E

E

E

E

See also Pigweed

Ammannia, pink (Ammania teres)




E

E

E


E

Amorpha, leadplant*(Amorpha, canescens)





F



G

Angelica, purplestem (Angelica atropurpurea)


G

P

F

G

E

G

E

Anoda, spurred (Anoda cristata)


G

G

F

G

E

E

E

Arrowgrass, seaside (Triglochin maritima)


F



G

E

F

E

Arrowhead

annual (Sagittaria calycina)

E

E

E

G

E

F

E

perennial (S. longiloba)

F

F





Aster

many-flowered (Aster ericoides)R

G



E

E

G

G

slender (A. exilis)

E

E

G

E

E



smooth (A. laevis)

G

F

F

G

E

E

G

white heath (A. pilosus)

F


N

F

E

G

G
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

B

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Balloonvine (Cardiospermum halicacabum)


G






E

Baneberry, red (Actaea rubra)





F

G


G

Barley, little (Hordeum pusillum)


N

N

N

N

N

E

E

Beardgrass, bushy (Andropogon glomeratus)


N

N

N

N

N



Bedstraw, cleavers (Gallium aparine)


P

N

N

G

E

E

E

Beeplant, Rocky Mountain (Cleome serrulata)


F







Beggarticks,

bearded (Bidens aristosa)

E

E

E

E

E

E

E

devils (B. frondosa)

E

E


E

E

E

E

leafbract (B.comosa)

E

E

E

E

E

E

E

nodding (B. cernua)

E

E

E

E

E

E

E

Bellflower, creeping* (Campanula rapunculoides)


P

P

P

F

E

F

E

Bentgrass, creeping (Agrostis stolonifera)


N

N

N

N

N

G

E

Bindweed,

field (Convolvulus arvensis)

G

G

F

G

G

P

G

hedge (C. sepium)

G

G


G

G

P

C

Bittercress, hairy (Cardamine hirsuta)


G

E

E

E

E

E

E

Blackeyed susan* (Rudbeckia serotina)


G



E

E

E

E

Bouncingbet (Saponaria officinalis)


P

N

N

G

F

E

F

Bracken (Pteridium aquilinum)


N

N

N

G

F

P

G

Brome,

downy (Bromus tectorum)

N

N

N

N

P

E

E

field (B. arvensis)

N

N

N

N

N

E

G

Japanese (B. japonicus)

N

N

N

N

P

E

E

Broomsedge (Andropogon virginicus)


N

N

N

N

N

F

E

Broomweed (Gutierrezia dracunculoides)R


G



G

E

F

F

Buffalobur* (Solanum rostratum)


F

P

P

F

G

F

G

Bullnettle (Cnidoscolus stimulosus)


G

F


G

G

G

G

Bulrush (Scirpus spp.)


F

F

N





Burcucumber (Sicyos angulatus)


P

F


P

E

E

E

Burdock, common (Arctium minus)


E

E

E

E

E

F

G

Bur-head (Echinodorus cordifolius)


E

E






Burroweed* (Haplopappus tenuisectus)


G



E

E



Buttercup,

celery leaf (Ranunculus sceleratus)

F







corn (R. arvensis)

G

E

E

F

F

G


creeping (R. repens)

G

E

G

G

F

G


1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

C

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Canarygrass, reed (Pharlaris arundinacea)


N

N

N

N

N

G

G

Carpetgrass (Axonopus affinis)


F

P

P

F

F

E

E

Carpetweed (Mollugo verticillata)


E


E

E

E

E

E

Carrot, wild (Daucus carota)


F

F

F

G

G

E

G

Catsear, spotted (Hypochoeris radicata)


G

E

E

E

E

E


Cattail,

broadleaf (Typha latifolia)

F

P

P

G

G

G

G

narrowleaf (T. angustifolia)

F

P

P



G

G

Chamomile, corn (Anthemis arvensis)


F

G

G

G

E

E

E

Cheat (Bromus secalinus)


N

N

N

N

F

E

E

Chervil, wild (Chaerophyllum tainturieri)



F


G



E

Chess, hairy (Bromus commutatus)


N

N

N

N

N

E

E

Chickweed,

common (Stellaria media)

F

P

F

E

E

G

E

field (Cerastium arvense)

F

P

P

E

E

F

E

mousseear (C. vulgatum)

F

P

P

E

E

G

E

sticky (C. viscosum)

G

G

E

E

E

E

E

Chicory (Cichorium intybus)


G

G

F

E

E

G

G

Cinquefoil,

common* (Potentilla canadensis)

G

F


E

E

E

E

sulfur (P. recta)

G

F


E

E

E

E

Clover,

hop (Trifolium agrarium)

F



G



E

white (T. repens)

F



E



F

Cockle, corn (Agrostemma githago)


P

P

N

G

E

E

E

Cocklebur, common* (Xanthium pensylvanicum)


E

F

G

E

E

E

E

Coffeeweed* (Daubentonia texana)


E



E

E


E

Coreopsis, plains (Coreopsis tinctoria)


E

G

E

E

G

E

E

Cornflower, bachelor's button (Centaurea cyanus)


E



E

E

E

E

Costmary* (Chrysanthemum balsamita)


F

F

F

F

E

G

G

Cranebill, cutleaf (Geranium dissectum)



E






Creeper,

Virginia (Parthenocissus quniquefolia)

P

P

P

F

F

F

G

mouseear (Arabidopsis thaliana)

E

E

E

E

E

E

E

Croton, wooly (C. capitatus)


E


E

E

E



Crown vetch (Coronilla varia)


G

G

G

E

E

G

G

Cudweed (Gnaphalium peregrinum)


N



E

E


G
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

D

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Daisy, oxeye (Chrysanthemum leucanthemum)


F

F

N

E

E

G

G

Dallisgrass (Paspalum dilatatum)


N

N

N

N

N

G

F

Dandelion (Taraxacum officinale)


E

E

G

E

E

G

G

Darnel (Lolium temulentum)








E

Dayflower (Commelina communis)


F

G

P

F

P

E

E

Deadnettle, red (Lamium purpureum)


P

P

P

E

E

E

E

Devil's claw (Proboscidea louisianica)


E



E

E


E

Dock,

broadleaf (Rumex obtusifolius)

F

F

F

E

E

E

E

curly (R. crispus)

F

F

F

E

E

G

G

fiddle (R. pulcher)

E



G

E

E

E

pale (R. altissimus)

G

G

P

G

E

E

E

Dodder,

largeseed (Cuscuta indecora)

P

N

N




E

smallseed alfalfa (C. pentagona)

P

N

N





Dogbane, hemp (Apocynum cannabinum)


F

P

P

F

G

G

G

Duckweed, common (Lemma minor)


P



N

N

G

N
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

E

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Eveningprimrose, common (Oenothera biennis)


E



E

E


E
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

F

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

False boneset (Kuhnia eupatorioldes)


G

F

F

F

E

G

G

Fennel, dog (Eupatorium capillifolium)


G


N

E

E


G

Fescue, sixweeks (Vulpia octoflora)


N

N

N

N

N

E

E

Fieldcress, yellow (Rorippa sylvestris)


G

F

F

F

G

G

G

Fleabane,

annual (Erigeron annuus)

F

F

E

E

E

E

E

rough (E. strigosus)

G



E

E

E

E

Florida betony (Stachys floridana)


P



F

G

E

G

Foxtail, meadow* (Alopecurus pratensis)


N

N

N

P

N

E

E
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

G

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Galinsoga,

hairy (Galinsoga ciliata)

G

E


E

E

G

E

smallflower (G. parviflora)

E

G

G

E

E

E

E

Garlic, wild (Allium vineale)


F

P

P

F

G

F

P

Geranium, Carolina (Geranium carolinianum)


G

E

E

E

E

E

E

Goldenrod (Solidago spp.)


F



G

E

P

E

Gooseweed (Sphenoclea zeylanica)


F

P

N





Gourd, buffalo (Curcurbita foetidissima)


P







Gromwell* (Lithospermum officinale)


N



E




Groundcherry,* clammy (Physalis heterophylla)


N


N

E

E



Groundivy (Glechoma hederacea)


F

P

N

G

E


G

Groundsel, cressleaf (Senecio glabellus)


E

E

G




E
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

H

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Hairgrass, silver (Aira caryophyllea)


N

N

N

N

N


E

Healall (Prunella vulgaris)


G

N

N

G



G

Henbit (Lamium amplexicaule)


P

P

P

E

E

E

E

Hogpeanut (Amphicarpa bracteata)


E







Hollyhock (Althea rosea)


E

G

G

G

E

G

E

Honeysuckle (Lonicera japonica)


F

E


G

E

E

G

Horehound, white (marrubium vulgare)


E



G

G



Horsenettle, Carolina (Solanum carolinense)


P

N

P

F

G

F

G

Horsetail, field (Equisetum arvense)R


P

F


N

F

G

P

Horseweed, marestail (Conyza canadensis)


F

F

F

E

E

E

E
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

I

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Indiantobacco (Lobelia inflata)


F



E




Iris, Rocky Mountain* (Iris missouriensis)


F







Ironweed, western* (Vernonia baldwinii)


F


P

G

E


E

Ivy, English (Hedera helix)





E

E

E

F
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

J

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Jerusalem artichoke (Helianthus tuberosus)


F



P

F

P

F

Jewelweed* (Imatiens pallida)


E



E

E

E

E

Jimsonweed (Datura stramonium)


P

P

P

F

E

G

E

Johnsongrass (Sorghum halepense)


N

N

N

N

N

P

E
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

K

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Knawel (Scleranthus annuus)


N

N


E

E

E

E

Knotweed, prostrate (Polygonum paviculare)


P

P

P

E

E

G

E

Kudzu (Pueraria lobata)


F

F


G

E

G

G
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

L

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Lambsquarters (Chenopodium album)


E

E

E

E

E

E

E

Lespedeza (Lespedeza striata)


P



G



G

sericea (L. cuneata)

P



G



F

Lettuce,

blue* (Lactuca pulchella)

F

F

F

G

E

F

G

wild (L. serriola)

E



E

E

E

E
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

M

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Maidencane (Panicum hemitomon)








E

Marshelder* (Iva xanthifolia)


E

G

E

E

E

G

E

Mayweed, dogfennel (Anthemis cotula)


F

P

N

E

E


E

Medic, black (Medicago lupulina)


F

F

P

G

E

G

G

Mexican weed (Caperonia palustris)


F

F

N




E

Mexicantea (Chenopodium ambrosioides)


E

E

E

E

E

E

E

Milkweed

butterfly (Asclepias tuberosa)

P

N

P

P

G

G

G

eastern whorled (A. verticillata)

N

N

N

G

F

F

G

green (A. viridiflora)

P

N

P

P

G

F

G

purple (A. purpurascens)

P

N

P

P

G

F

G

swamp (A. incarnata)

P

N

N

P

G

F

G

Moneywort (Lysimachia nummularia)


E






G

Morningglory,

bigroot (Ipomoea pandurata)

F

P

N

P

F

P

F

common (I. purpurea)

E


E

E

E

E

E

ivyleaf (I. hederacea)

E


E

E

E

E

E

Mudplantain (Heteranthera limosa)


E

G

F





Mugwort (Artemisia vulgaris)


P

N


F

G


F

Mullein,

common (Verbascum thapsus)

P

P

N

G

E

G

G

moth (V. blattaria)

F



F

G

G

E

Mustard,

black (Brassica nigra)

E

E

E

E

G

G

E

Indian (Brassica juncea)

E

E

E

E

E

E

E

treacle (Erysimum repandum)

G

G


F




1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

N

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Nettle, stinging (Urtica dioica)


G



G

G

G

G

Nightshade,

black (Solanum nigrum)

F

F

F

G

E

G

E

silverleaf (S. elaeagnifolium)

P



G

E

F

E

Nimblewill (Muhlenbergia schreberi)


N

N

N

N

N

G

E

Nutsedge,

purple (Cyperus rotundus)

P

N

N

P

P

F

G

yellow (C. esculentus)

F

N

N

N

F

F

F
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

O

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Onion, wild (Allium canadense)


F

P

P

F

P

F

F
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

P

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Partridgepea (Cassia chamoccrista)


E

E


E

E


E

Paspalum, field (Paspalum laeve)








E

Passionflower, maypop (Passiflora incarnata)


F



F

F


F

Pellitoryweed (Parietaria floridana)R


N

N

N





Pepperweed, Virginia (Lepidium virginicum)


E

E

E

E

E

E

E

Pickerelweed (Pontederia cordata)








G

Pigweed,

redroot (Amaranthus retroflexus)

E

E

E

E

E

E

E

tubleweed (A. graecizans)

E

E

E

E

E

E

E

Pimpernel, scarlet (anagallis arvensis)


E

G

F

E

E

E

E

Plantain,

blackseed (Plantago rugelii)

E

E

E

E

E

E

E

bracted (P. aristata)

E

G

G

E

E

E

E

broadleaf (P. major)

E

E

E

G

E

G

G

buckhorn (P. lanceolata)

E

G

E

G

E

E

E

Poison ivy (Taoxicodendron radicans)


F

F

N

G

E

E

G

Poison oak (T. toxcarium)


F

P

N

F

G

E

G

Pokeweed (Phytolacca americana)


F

F


G

E

E

E

Pondweed (Potamogeton spp.)


E

N






Ponyfoot (Dichondra repens)


E



E

E

E

E

Poorjoe (Diodia teres)


G

F

F

E

E

E

E

Povertygrass (Aristida dichotoma)


N

N

N

N

N

E

E

Puncturevine (Trebulus terrestris)R


G

F

G

E

E

F

E

Purslane, common (Portulaca oleracea)


F

F

G

E

E

G

E

Pusley, Florida (Richardia scabra)


E



E

E



Pussytoes, plantainleaf (Antennaria plantaginifolia)


G

G

F

G

E

E

E
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

Q

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Queensdelight (Stillingia sylvatica)


N







1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

R

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Radish, wild (Raphanus raphanistrum)


G

F

F

E

E

E

E

Ragweed,

common (Ambrosia artemisiifolia)

F

P

G

E

E

E

E

giant (A. trifida)

F

P

G

E

E

E

E

lanceleaf (A. bidentata)

E

E

G

E

E

E

E

western (A. psilostachya)

G


G

E

E



Rape, bird (Brassica rapa)


E

E

E




G

Redstem (Ammannia coccinea)


E

E

G





Redvine (Brunnichia cirrhosa)


N

N

N

G

G


G

Reed,

common (Phragmites australis)







G

giant (Arundo donax)

N

N

N

N

N



1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

S

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Sandbur,

field (Cenchrus incertus)

N

N

N

N

N

G

E

longspine (C. longispinus)

N

N

N

N

N

E

E

southern (C. echinatus)







E

Sandwort, thymeleaf (Arenaria serpyllifolia)


E



G



E

Sedge, hop (Carex lupulina)


N

N

N

N

N


G

Senna,

coffee (Cassia occidentalis)

G

P

P

E

E

E

E

sensitive (C. nictitans)

G

F

P

E

E

E

E

sicklepod (C. obtusifolia)

F

P

P

E

E

E

E

wild (C. marilandica)

P

P

N

G

G

G

E

Sesbania, coffeebean (Sesbania exaltata)


F

G

F

E

E


G

Shepherdspurse (Capsella bursa-pastoris)


G

G

G

E

E

E

E

Sida, prickly (Sida spinosa)


E

G

P

E

E

E

E

Signalgrass, broadleaf (Brachiaria platyphylla)


N

N




G

G

Smartweed,

ladysthumb (Polygonum persicaria)

G

F

G

E

E

E

E

Pennsylvania (P. pensylvanicum)

G

F

G

E

E

E

E

water (P. amphibium)

P

P

P

F

F

F

G

Snakeroot, white (Eupatorium rugosum)


F







Snakeweed









Sneezeweed (Helenium autumnale),


G

G

F

F

G

G

G

bitter (H. amarum)

E

E

G

E

E


E

Snow-on-the-mountain (Euphorbia marginata)


F


F

E

E

F

G

Sorrel

heartwing (Rumex hastatulus)

E



E

E


E

red (R. acetosella)

N

N

N

E

E

G

E

Sowthistle,

annual (Sonchus oleraceus)

E

E

E

E

E

E

E

perennial (S. arvensis)spiny (S. asper)

FE

F

FE

GE

GE

GE

GE

Spanishneedles (Bidens bipinnata)


E

G

G

E

E

E

E

Spatterdock (Nuphur lutea macrophylla)








E

Speedwell,

corn (V. arvensis)

P

N

N

P




purslane (V. peregrina)

F

N


F




Spikerush


F

F

P





Spurge,

flowering (Euphorbia corollata)

P



G

E



spotted (E. maculata)

P

F

P

E

E

F

G

Spurry, corn (Spergula arvensis)


P

F

N

G

E



St. Johnswort (Hypericum perforatum)


P







spotted (H. punctatum)

F







Starbur, Paraguay (Acanthospermum australe)


P

N

N

G

E


E

Strawberry, wild (Fragaria spp.)


P

N

N

G

G

E

G

Sumpweed, rough (Iva ciliata)


E



E

E



Sunflower (Helianthus annuus)


E

G

E

E

E

G

E

Sweetclover, annual yellow (Melilotus indica)


E

E

E

E

E

E

E

Sweetflag (Acorus calamus)R





G



E

Swinecress (Coronopus didymus)


E

G

F

E

E


E

1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

T

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Thistle,

bristly (Cirsium horridulum)

F



E

E



milk (Silybum marianum)

E

G


E




musk (Carduus nutans)

E

F

F

G

E

E

E

Threeawn,

prairie (Aristida oligantha)

N

N

N

N

N

G

E

red (A. longisteta)

N

N

N

N

N

F

F

Tickseed (Coreopsis tinctoria)


G



E

E



Toadflax, blue (Linaria canadensis)


P







Torpedograss (Panicum repens)








G

Trumpetcreeper (Campsis radicans)


P

N

N

G

E

G

G
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

U-V

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Velvetleaf (Abutilon theophrasti)


G

G

F

F

E

E

E

Velvetgrass (Holcus lanatus)


N

N

N

N

N

G

E

Vervain,

blue (Verbena hastata)

E



E




hoary (V. stricta)

G







prostrate (V. bracteata)

E







roadside (V. bonariensis)

G



E




Vetch,

narrowleaf (Vicia angustifolia)

E

F


E

E

G

E

wild (Vicia spp.)

E

E

E

E

E

E

G

Violet (Viola spp.)


P

N


F

G

G

G
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

W

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Waterhyacinth (Eichhornia crassipes)


G






G

Waterhemlock, spotted (Cicuta maculata)


G



E

E

E

G

Waterhemp (Amaranthus tamariscinus),


E

E

E

E

E

E

E

tall (A. tuberculatus)

E

E

E

E

E

E

E

Waterweed, Canada (Elodea canadensis)


F







Windmillgrass (Chloris verticillata)


N

N

N

N

N

F

G

Wintercress, early (Barbarea verna)


E

G

G

E

E

E

E

Witchgrass (Panicum capillare)


N

N

N

N

N

E

E

Woodsorrel, yellow (Oxalis stricta)


P

N


G

E


E

Wormwood,

annual (Artemisia annual)

G

F


E

E



Louisiana (Artemisia ludoviciana)

F

P

P

G

E

F

G
1Ratings: E = Excellent, G = good, F = Fair, P = poor, N = none.
2See limitations on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

 

 

Y-Z

Plant name


Control1

2,4-D

MCPA

2,4-DB

Dicamba

Picloram

Amitrole

Glyphosate

Yankeeweed (Eupatorium compositifolium)


F




E



Yarrow, common (Achillea millefolium)


P

P

N

G

E

F

G

Yellow rocket (Barbarea vulgaris)


F

G

F

G

E

G

E
1Ratings: E = excellent, G = good, F = Fair, P = Poor, N = None.
2See limitation on use of 2,4,5-T and silvex.
3Sometimes biennial.
R = Rare
* = Related species

Limitation on use of 2,4,5-T and silvex

On February 28, 1979, the Environmental Protection Agency (EPA) announced emergency suspension of uses of 2,4,5-T products on forests, rights-of-way, and pastures. EPA also announced suspension of silvex products registered uses for forestry, rights-of-way, pasture, home, aquatic, and recreation areas. Cancellation proceedings were intitiated at the same time. Decisions on use of these products will not be known until final actions have been taken. During the interim period, these uses are illegal.
Adapted and distributed in Mississippi by John D. Byrd, Jr., Ph.D., Extension Weed Specialist, and Sidney McDaniel, Ph.D., Professor of Botany, Mississippi State University, from "Systemic Herbicides for Weed Control" by Dayton L. Klingman, Weed Science Laboratory, Agricultural Research Center, U.S. Department of Agriculture; R.W. Bovey, Agricultural Research Service, U.S. Department of Agriculture, Texas A&M University; E.L. Knake, Agronomy Department, University of Illinois; A.H. Lange, San Joaquin Valley, Agricultural Research and Extension Center, University of California; J.A. Meade, Soils and Crops Department, Rutgers University; W.A. Skroch, Department of Horticultural Science, North Carolina State University; R.E. Stewart, Forest Service, U.S. Department of Agriculture; and D.L. Wyse, Department of Agronomy and Plant Genetics, University of Minnesota.

Mississippi State University does not discriminate on the basis of race, color, religion, national origin, sex, age, disability, or veteran status.

Publication 1934
Extension Service of Mississippi State University, cooperating with U.S. Department of Agriculture. Published in furtherance of Acts of Congress, May 8 and June 30, 1914. Ronald A. Brown, Director

Copyright by Mississippi State University. All rights reserved.

This document may be copied and distributed for nonprofit educational purposes provided that credit is given to the Mississippi State University Extension Service.
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