Peppers

Pest Management Guidelines


Susceptibility of Weeds in Peppers to Herbicide Control

(Reviewed 12/09, updated 12/09)

In this Guideline: More about weeds in peppers:

Susceptibility of Winter Weeds in Peppers to Herbicide Control
Customize LIST OF WEEDS

ANNUAL WEEDS
barley, hare
bluegrass, annual
canarygrass
burclover, California
crabgrasses
cudweeds
fiddlenecks
filarees
foxtails
henbit
knotweed, common
lettuce, prickly
London rocket
miner"s lettuce
mustards
nettles
oats, wild
pineapple-weed
polypogon, rabbitfoot
radish, wild
redmaids (desert rockpurslane)
ryegrass
shepherd's-purse
sowthistles
sweetclover

BEFORE PLANTING
CAR OXY PAR* PEL GLY
NPPC
NPPCC
NPPC
PPP
NNCC
NNC
CCPCC
CPPP
NNCC
CCC
PPCP
CPC
CCCCC
CCC
PCCCC
CCCP
NPPC
PPC
NPCC
PCPC
CCC
NNPC
PPCCC
NCCC
NPPP
PREEMERGENCE OR PREPLANT
INCORPORATED
MEO MET* NAP BEN TRI
PCCPC
CCCCC
CCCCC
PPNN
CCCCC
NPPNN
NCCNC
NCCNP
CCCCC
CPNP
NCCCC
NCCNN
NCPNN
CCPC
NCPNN
CCPNP
NCCNP
CPNN
CCCCC
NCPNN
CNPC
CCCPC
PCPNN
PCCNN
NPNN

AFTER PLANTING
CAR CLE HAL PEL PEN SET
NCCP
NCNCCN
NCCC
N
NCCC
NNN
CNCCN
NPNN
NCCC
NCN
NCCN
NPNN
CNCPN
N
PNPCPN
CNPNN
NCPC
NNN
NCC
PNPNN
N
NCCC
PNCCPN
NNPNN
NNN
Susceptibility of Spring & Summer Weeds in Peppers to Herbicide Control
Customize LIST OF WEEDS

ANNUAL WEEDS
barnyardgrass
bromegrasses
chickweed, common
cockleburs
cudweeds
dodder
fescue, tall
fleabane, hairy
goosefoot, nettleleaf
groundcherries
groundsel, common
horseweed, common
knotweed, common
lambsquarters, common
lettuce, prickly
mallow, little (cheeseweed)
nettles
nightshades
pigweeds
polypogon, rabbitfoot
puncturevine
purslane, common
sandburs
sowthistles
speedwells
spurges
thistle, Russian
witchgrass
PERENNIAL WEEDS
bermudagrass (seedling)
bermudagrass (established)
bindweed, field (seedling)
bindweed, field (established)
johnsongrass (seedling)
johnsongrass (established)
nutsedge, purple
nutsedge, yellow

BEFORE PLANTING
CAR OXY PAR* PEL GLY
NPPCC
NPCPC
PNCCC
PPCC
NNC
PNNNC
NPCC
NPCPC
CCC
CCCC
CCCC
NPPC
PPCP
CPPC
CPC
CCNCP
CCPP
CCCC
CCCPC
NPCCC
PCC
NCCCC
NNPC
NCPC
NCCC
PCC
PPCC
NPCC
 
NPPC1
NNPNC1
CNPC
PNNNP
NNCC1
NNNNC1
NNNNP1
NNNNP1
PREEMERGENCE OR PREPLANT
INCORPORATED
MEO MET* NAP BEN TRI
CCCCC
CCCC
CCCCC
PCNN
NPPNN
NNNC
CCCC
NCNNN
PCCPC
CCNNN
NCPNN
NCNNN
NCCPC
PCCCC
NCCNN
PPPNN
CCPNP
CCNNN
CCCCC
CCCCC
CPNP
CCCCC
CCCCC
PCCNN
CCNP
NCNNN
PCPNP
CCPC
 
NCCCC
NPNNN
NPNNP
NPNNP
CCCCC
NPNNN
NPNNN
PCNNN

AFTER PLANTING
CAR CLE HAL PEL PEN SET
NCPCCC
NCPCP
PNCCCN
PNPNN
NNN
PNNPN
NP
NNPNN
NCN
CNNN
NPCNN
NNNN
NCCN
NNPCN
NCNN
CNCPN
CNPNN
CNNNN
CNPPCN
NCCC
NPN
NNPCCN
NCCC
NNPNN
NN
NPN
NCPN
NN
 
NCNCC
NPNNNP
CNPN
PNNNN
NCCC
NCNNC
NNCNNN
NNCNNN

Ratings Legend
C= control    P= partial control    N= no control    = no information

Chemical Legend
BEN = bensulide (Prefar)
CAR = carfentrazone (Shark)
CLE = clethodim (Select Max)
GLY = glyphosate (Roundup)
HAL = halosulfuron (Sandea)
MEO = S-metolachlor (Dual Magnum)
MET = metam sodium* (various trade names)
 
NAP = napropamide (Devrinol)
OXY = oxyfluorfen (GoalTender)
PAR = paraquat* (Gramoxone Inteon)
PEL = pelargonic acid (Scythe)
PEN = pendimethalin (Prowl H2O)
SET = sethoxydim (Poast)
TRI = trifluralin (Treflan)

Comments
*   Permit required from county agricultural commissioner for purchase or use.
1   Treatment must occur year before planting; not when peppers are in field.

[Precautions]

PUBLICATION

[UC Peer Reviewed]

UC IPM Pest Management Guidelines: Peppers
UC ANR Publication 3460

Weeds
R. F. Smith, UC Cooperative Extension, Monterey County
O. Daugovish, UC Cooperative Extension, Ventura County
Acknowledgment for contributions to Weeds:
C. E. Bell, UC Cooperative Extension, Imperial County
W. T. Lanini, Weed Science/Plant Sciences, UC Davis

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