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How to Manage Pests

UC Pest Management Guidelines

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Tomato

Susceptibility of Weeds to Herbicide Control

(Reviewed 12/11, updated 12/11)

In this Guideline: More about weeds in tomato:
Susceptibility of Weeds to Herbicide Control
  FALL BED PREPLANT POSTPLANT LAYBY
Customize list of weeds
 
ANNUAL WEEDS
Broadleaves
broomrape
chickweed, common
dodders
fleabane, hairy
goosefoot, nettleleaf
groundcherries
groundsel, common
horseweed
jimsonweed
knotweed, prostrate
lambsquarters, common
lettuce, prickly
mallow, little (cheeseweed)
mustards
nettle, burning
nightshade, hairy
nightshade, black
pigweeds
purslane, common
rocket, London
shepherd's-purse
sowthistles
sweetclovers
thistle, Russian
tobacco, Indian
velvetleaf
Grasses
barnyardgrass
canarygrasses
cereals, volunteer
crabgrass, large
lovegrasses
oat, wild
PERENNIAL WEEDS
Seedlings
bermudagrass
bindweed, field
johnsongrass
Established
bermudagrass
bindweed, field
datura, sacred
johnsongrass
nutsedge, purple
nutsedge, yellow
Preemerg.

MTR
OXY
 
N—
CP
NC
NP
CC
PC
PC
—P
NC
NC
CC
CC
PC
CC
CC
PC
NC
CC
PC
CC
CC
CC
CC
CP
—C
PC
 
PP
—P
PN
CP
PP
PP
 
 
NN
NN
NN
 
NN
NN
NN
NN
NN
PN
Postemergemce

CAR
GLY
PAR*
 
—CN
PCC
PCC
NCC
—CC
CCC
—CC
NCC
—CC
—CP
—CP
—CC
CPP
PCC
CNC
CCC
CCC
CCC
NCC
CCC
PCC
NCC
—CP
—CP
—CC
CCC
 
NCC
NCC
NCC
NCC
NCC
NCP
 
 
NCC
CCC
NCC
 
NCN
PCN
—CP
NPN
NPN
NPN
Preemergence
13D
CHL*
MEO
MEP*
MET*
NAP
PEN
TRI
 
———CN—P
CCCCCCC
—N—CNPN
—N—CNNN
CPCCCCC
—CCCNNN
CNCCCNN
—N—CNNN
———CNNN
—N—CCCC
CPCCCCC
—NCCCNN
PPPNCPN
—NCCPPN
CCCCPNP
—CCCNPN
—CCPNPN
CCCCCCC
CCCCCCC
—NCCPPN
—PCCPPN
CPCCCNN
NNPNPNP
—PPCPPC
———CNNN
—PPCNNN
 
CCCCCCC
—CCCCCC
CNCCCCN
—CCCCCC
—CCCCCC
—NCCCPN
 
 
CNCCCCN
NNNCNNN
—C—CPCC
 
TNTPNNN
NNTPNNN
———NNNN
—NNPNNN
—NPNNNN
PPPPPNN
Preemerg.

MEO
RIM
 
——
CC
NN
N—
PP
CC
NC
N—
——
NC
PC
NP
PC
NC
—C
CC
CC
CC
CC
NC
PC
PP
——
PP
——
PP
 
CC
C—
NC
CP
CP
NP
 
 
NN
PN
CP
 
NN
—P
——
NN
NP
PP
Postemergence

CAR
CLE
HAL
MTR
RIM
SET
 
—NNN—N
PNCCCN
PNPNPN
NN—P—N
—NCCPN
CN—PPN
—NCCPN
NN—C—N
—N—N—N
—N—PPN
—NPCPN
—NNPPN
CN—PPN
PNCCCN
CNCCCN
CNNPPN
CNNPPN
CNCCPN
NNPPCN
CNCCCN
PNPCCN
NNCCPN
—N—PNN
—N—PPN
—N—N—N
CNCCPN
 
NCNPCC
NCNN—C
NCNNCC
NCNNCC
NCNNPC
NCNNPC
 
 
NCNN—C
CNNNPN
NCNNPC
 
NPNNNP
PN—NPN
——NP—N
NPNNNC
NNCNNN
NNPNNN
Preemergence

DCP
EPT
MEO
PEN
TRI
 
—N——P
CCCCC
PPNPN
—PNNN
CCPCC
CCCNN
NCNNN
—PNNN
—C—NN
PPNCC
CCPCC
—CNNN
PPPPN
PNNPN
PP—NP
PCCPN
PPCPN
CCCCC
CCCCC
PPNPN
PPPPN
PCPNN
NN—NN
CNPPC
—C—NN
NPPNN
 
CCCCC
CCCCC
PCNPN
CCCCC
CCCCC
PCNPC
 
 
CCNCC
N—PNC
CCCCC
 
NNNNN
NN—NN
—P—NN
NCNNN
NCNNN
NCPNN
 
 
ANNUAL WEEDS
Broadleaves
broomrape
chickweed, common
dodders
fleabane, hairy
goosefoot, nettleleaf
groundcherries
groundsel, common
horseweed
jimsonweed
knotweed, prostrate
lambsquarters, common
lettuce, prickly
mallow, little (cheeseweed)
mustards
nettle, burning
nightshade, hairy
nightshade, black
pigweeds
purslane, common
rocket, London
shepherd's-purse
sowthistles
sweetclovers
thistle, Russian
tobacco, Indian
velvetleaf
Grasses
barnyardgrass
canarygrasses
cereals, volunteer
crabgrass, large
lovegrasses
oat, wild
PERENNIAL WEEDS
Seedlings
bermudagrass
bindweed, field
johnsongrass
Established
bermudagrass
bindweed, field
datura, sacred
johnsongrass
nutsedge, purple
nutsedge, yellow

Ratings Legend
C= control P= partial control N= no control T = top kill only —= no information

Chemical Legend
13D/CHL = 1,3-dichloropropene/chloropicrin* (Telone)
CAR = carfentrazone (Shark)
CLE = clethodim (Select Max)
DCP = DCPA (Dacthal)
EPT = EPTC (Eptam)
GLY = glyphosate (Roundup, Touchdown)
HAL = halosulfuron (Sandea)
MEO = metolachlor (Dual Magnum)
MEP = metam potassium* (K-Pam HL)
 
MET = metam sodium* (Vapam, etc.)
MTR = metribuzin (Metribuzin 75, etc.)
NAP = napropamide (Devrinol)
OXY = oxyfluorfen (Goal)
PAR = paraquat* (Gramoxone Inteon)
PEN = pendimethalin (Prowl H20)
RIM = rimsulfuron (Matrix)
SET = sethoxydim (Poast)
TRI = trifluralin (Treflan, etc.)

Comments
* Permit required from county agricultural commissioner for purchase or use.

[Precautions]

PUBLICATION

[UC Peer Reviewed]

UC IPM Pest Management Guidelines: Tomato
UC ANR Publication 3470
Weeds
W. T. Lanini, Weed Science/Plant Sciences, UC Davis
K. J. Hembree, UC Cooperative Extension, Fresno County
G. Miyao, UC Cooperative Extension, Solano/Yolo counties
C. S. Stoddard, UC Cooperative Extension, Merced/Madera counties
Acknowledgments for contributions to the weed section:
B. J. Mullen,UC Cooperative Extension, San Joaquin County
J. P. Orr, UC Cooperative Extension, Sacramento County
W. E. Bendixen, UC Cooperative Extension, Santa Barbara County

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