UC IPM Online UC ANR home page UC IPM home page

UC IPM Home

Search

SKIP navigation
How to Manage Pests

Home & garden
Agriculture
Natural environments
Exotic & invasive

Weather data & products
Degree-days
Interactive tools & models

Educational Resources

Publications & more
Workshops and events
Training programs
Pesticide information

Research and IPM

Grants programs
Funded-project results

 
  Printer-friendly version

How to Manage Pests

UC Pest Management Guidelines

| More pests | More crops | About guidelines |

Peppers

Susceptibility of Weeds to Herbicide Control

(Reviewed 8/07, updated 6/08)

In this Guideline: More about weeds in peppers:
Susceptibility Of Winter Weeds 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
NPP—C
NPPCC
NPP—C
—PP—P
NNC—C
—NN—C
CCPCC
—CPPP
NNC—C
—CC—C
—PPCP
—CP—C
CCCCC
—CC—C
PCCCC
CCC—P
NPP—C
—PP—C
NPC—C
PCP—C
—CC—C
NNP—C
PPCCC
NCC—C
NPP—P
PREEMERGENT 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 DCP HAL PEL PEN SET
NCC——CP
NCCNCCN
NCC——CC
——————N
NCC——CC
—NN——NN
CNC—CCN
—NP—PNN
NCC——CC
—NP——CN
—NP—CCN
—NNP—NN
CNP—CPN
——————N
PNPPCPN
CNPP—NN
NCP——PC
—NN——NN
N————CC
PNNP—NN
——————N
NCC——CC
PNNCCPN
NNPP—NN
N——N——N
 

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
Susceptibility Of Spring/Summer Weeds To Herbicide Control
Customize list of weeds

ANNUAL WEEDS
barnyardgrass
bromegrasses
chickweed, common
cockleburs
cudweeds
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
PPC—C
—NN—C
NPC—C
NPCPC
—CC—C
CCC—C
—CCCC
NPP—C
—PPCP
—CPPC
—CP—C
CCNCP
CCP—P
CCC—C
CCCPC
NPCCC
—PC—C
NCCCC
NNP—C
NCP—C
NCC—C
—PC—C
—PPCC
NPC—C
 
NPP—C1
NNPNC1
CNP—C
PNNNP
NNC—C1
NNNNC1
NNNNP1
NNNNP1
PREEMERGENT OR PREPLANT
INCORPORATED
MEO MET* NAP BEN TRI
CCCCC
—CCCC
CCCCC
—PCNN
NPPNN
—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 DCP HAL PEL PEN SET
NCCPCCC
NCC—PCP
PNCCCCN
PNNP—NN
—NN——NN
N—————P
NNN—PNN
—NC——CN
CNC——NN
—NNPCNN
NNN——NN
—NP—CCN
—NCNPCN
—NNC—NN
CNP—CPN
CNPP—NN
CNPN—NN
CNCPPCN
N———CCC
—NP——PN
NNCPCCN
NCC——CC
NNPP—NN
N—————N
—NP——PN
—NC—CPN
N—————N
 
NCCN—CC
NPNNNNP
CNN——PN
PNN—NNN
NCC——CC
NCN—NNC
NNNCNNN
NNNCNNN
 

ANNUAL WEEDS
barnyardgrass
bromegrasses
chickweed, common
cockleburs
cudweeds
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

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

Chemical Legend
BEN = bensulide (Prefar)
CAR = carfentrazone (Shark)
CLE = clethodim (Select Max)
DCP = DCPA (Dacthal)
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

Top of page

Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2008 The Regents of the University of California. All rights reserved.

For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See How to manage pests, or in the U.S., contact your local Cooperative Extension office for assistance. /PMG/r604700411.html revised: July 7, 2008. Contact webmaster.