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How to Manage Pests

UC Pest Management Guidelines


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
 
CNP
CCCCCCC
NCNPN
NCNNN
CPCCCCC
CCCNNN
CNCCCNN
NCNNN
CNNN
NCCCC
CPCCCCC
NCCCNN
PPPNCPN
NCCPPN
CCCCPNP
CCCNPN
CCPNPN
CCCCCCC
CCCCCCC
NCCPPN
PCCPPN
CPCCCNN
NNPNPNP
PPCPPC
CNNN
PPCNNN
 
CCCCCCC
CCCCCC
CNCCCCN
CCCCCC
CCCCCC
NCCCPN
 
 
CNCCCCN
NNNCNNN
CCPCC
 
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
 
NNNN
PNCCCN
PNPNPN
NNPN
NCCPN
CNPPN
NCCPN
NNCN
NNN
NPPN
NPCPN
NNPPN
CNPPN
PNCCCN
CNCCCN
CNNPPN
CNNPPN
CNCCPN
NNPPCN
CNCCCN
PNPCCN
NNCCPN
NPNN
NPPN
NNN
CNCCPN
 
NCNPCC
NCNNC
NCNNCC
NCNNCC
NCNNPC
NCNNPC
 
 
NCNNC
CNNNPN
NCNNPC
 
NPNNNP
PNNPN
NPN
NPNNNC
NNCNNN
NNPNNN
Preemergence

DCP

EPT

MEO

PEN

TRI
 
NP
CCCCC
PPNPN
PNNN
CCPCC
CCCNN
NCNNN
PNNN
CNN
PPNCC
CCPCC
CNNN
PPPPN
PNNPN
PPNP
PCCPN
PPCPN
CCCCC
CCCCC
PPNPN
PPPPN
PCPNN
NNNN
CNPPC
CNN
NPPNN
 
CCCCC
CCCCC
PCNPN
CCCCC
CCCCC
PCNPC
 
 
CCNCC
NPNC
CCCCC
 
NNNNN
NNNN
PNN
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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