Peppers

Agricultural pest management


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 BEFORE PLANTING PREEMERGENCE OR PREPLANT INCORPORATED AFTER PLANTING
CAR OXY PAR* PEL GLY MEO MET* NAP BEN TRI CAR CLE HAL PEL PEN SET
ANNUAL WEEDS
barley, hare N P P C P C C P C N C C P
bluegrass, annual N P P C C C C C C C N C N C C N
canarygrass N P P C C C C C C N C C C
burclover, California P P P P P N N N
crabgrasses N N C C C C C C C N C C C
cudweeds N N C N P P N N N N N
fiddlenecks C C P C C N C C N C C N C C N
filarees C P P P N C C N P N P N N
foxtails N N C C C C C C C N C C C
henbit C C C C P N P N C N
knotweed, common P P C P N C C C C N C C N
lettuce, prickly C P C N C C N N N P N N
London rocket C C C C C N C P N N C N C P N
miner's lettuce C C C C C P C N
mustards P C C C C N C P N N P N P C P N
nettles C C C P C C P N P C N P N N
oats, wild N P P C N C C N P N C P C
pineapple-weed P P C C P N N N N N
polypogon, rabbitfoot N P C C C C C C C N C C
radish, wild P C P C N C P N N P N P N N
redmaids (desert rockpurslane) C C C C N P C N
ryegrass N N P C C C C P C N C C C
shepherd's-purse P P C C C P C P N N P N C C P N
sowthistles N C C C P C C N N N N P N N
sweetclover N P P P N P N N N N N
Susceptibility of Spring & Summer Weeds in Peppers to Herbicide Control
Customize LIST OF WEEDS BEFORE PLANTING PREEMERGENCE OR PREPLANT INCORPORATED AFTER PLANTING
CAR OXY PAR* PEL GLY MEO MET* NAP BEN TRI CAR CLE HAL PEL PEN SET
ANNUAL WEEDS
barnyardgrass N P P C C C C C C C N C P C C C
bromegrasses N P C P C C C C C N C P C P
chickweed, common P N C C C C C C C C P N C C C N
cockleburs P P C C P C N N P N P N N
cudweeds N N C N P P N N N N N
dodder P N N N C N N N C P N N P N
fescue, tall N P C C C C C C N P
fleabane, hairy N P C P C N C N N N N N P N N
goosefoot, nettleleaf C C C P C C P C N C N
groundcherries C C C C C C N N N C N N N
groundsel, common C C C C N C P N N N P C N N
horseweed, common N P P C N C N N N N N N N
knotweed, common P P C P N C C P C N C C N
lambsquarters, common C P P C P C C C C N N P C N
lettuce, prickly C P C N C C N N N C N N
mallow, little (cheeseweed) C C N C P P P P N N C N C P N
nettles C C P P C C P N P C N P N N
nightshades C C C C C C N N N C N N N N
pigweeds C C C P C C C C C C C N P P C N
polypogon, rabbitfoot N P C C C C C C C C N C C C
puncturevine P C C C P N P N P N
purslane, common N C C C C C C C C C N N P C C N
sandburs N N P C C C C C C N C C C
sowthistles N C P C P C C N N N N P N N
speedwells N C C C C C N P N N
spurges P C C N C N N N N P N
thistle, Russian P P C C P C P N P N C P N
witchgrass N P C C C C P C N N
PERENNIAL WEEDS
bermudagrass (seedling) N P P C1 N C C C C N C N C C
bermudagrass (established) N N P N C1 N P N N N N P N N N P
bindweed, field (seedling) C N P C N P N N P C N P N
bindweed, field (established) P N N N P N P N N P P N N N N
johnsongrass (seedling) N N C C1 C C C C C N C C C
johnsongrass (established) N N N N C1 N P N N N N C N N C
nutsedge, purple N N N N P1 N P N N N N N C N N N
nutsedge, yellow N N N N P1 P C N N N N N C N N N
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 SL 2.0)
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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