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UC Pest Management Guidelines


Chickweed, Stellaria media.

Small Grains

Susceptibility of Weeds to Herbicide Control

(Reviewed 2/07, updated 2/09)

In this Guideline: More about weeds in small grains:

Susceptibility of Winter Weeds to Herbicide Control
Customize list of weeds
ANNUAL WEEDS
barley, hare
bluegrass, annual
brome, ripgut
burclover, California
canarygrass, hood
canarygrass, littleseed
chamomile, mayweed
chickweed, common
fiddleneck, coast
filarees
groundsel, common
henbit
knotweed, prostrate
ladysthumb
lettuce, prickly
mallow, little (cheeseweed)
milkthistles
miner's lettuce
mustards
nettle, burning
oat, wild
oxtongue, bristly
pimpernel, scarlet
pineapple-weed
radish, wild
redmaids (desert rockpurslane)
rocket, London
ryegrass, Italian
shepherd's-purse
smartweed, pale
sowthistle, annual
sowthistle, spiny
spurry, corn
stickleafs
tarweeds
 
BRO CAR CHS CLO DIA* FEN GLY MCA* MES PAR* PEN PYR TRA 24D*
NNCNNNNNCP/C+NNNN
NNCNNNNNCP/C+CNN
NNCNNNNNPNPNN
NPCCCNCPNPC
NNCNNCNNCNCNCN
NNCNNCNNCNCNCN
CCCNCNPCNN
NPCPNCNCCPCN
CCCPNCPPPCNP
NPPCNPPCPC
P/C+CPNCCPCNC
N/P+CCNCCPCCCC
NCNCNPCNNNCC
P/CCCNCPPNCC
CCPNPCPCNCC
NPCNCNPPPNNCP
NCNCPPPNC
NCPNCNCCCN
CPCNCNCCCCPC
NCNNCNNNCN
NNCNNCCNCP/C+CNCN
CCPNPNC
CNCN
CCPNCPCNCC
PPCPNCP/C+CP/C+NCC
NCCNCCNCCC
CCCPCNCCCPCC
NNCNNNCNCP/C+CNCN
CPCPCNCCCPCC
P/CCCNCPC
CPCPCNCPCNCC
NPCNCNN
NCNNCNCNN
NCNCNNN
CCCNCPCNP
 
ANNUAL WEEDS
barley, hare
bluegrass, annual
brome, ripgut
burclover, California
canarygrass, hood
canarygrass, littleseed
chamomile, mayweed
chickweed, common
fiddleneck, coast
filarees
groundsel, common
henbit
knotweed, prostrate
ladysthumb
lettuce, prickly
mallow, little (cheeseweed)
milkthistles
miner's lettuce
mustards
nettle, burning
oat, wild
oxtongue, bristly
pimpernel, scarlet
pineapple-weed
radish, wild
redmaids (desert rockpurslane)
rocket, London
ryegrass, Italian
shepherd's-purse
smartweed, pale
sowthistle, annual
sowthistle, spiny
spurry, corn
stickleafs
tarweeds
Susceptibility of Spring/Summer Weeds to Herbicide Control
Customize list of weeds
 
ANNUAL WEEDS
barnyardgrass
bassia, fivehook
foxtails (yellow and green)
goosefoot, nettleleaf
knotweed, prostrate
kochia
lambsquarters, common
pigweed, redroot
polypogon, rabbitfoot
spurge, prostrate
starthistle, yellow
sunflowers
thistle, Russian
PERENNIAL WEEDS
bindweed, field (seedling)
bindweed, (mature plant)
buttercup, crowfoot
johnsongrass, (seedling)
johnsongrass, (mature plant)
nutsedge, yellow
smartweed, pale
PREPLANT
(nonselective)
GLY PAR* PYR
CCN
CC
CCN
CC
PPC
CNC
CCC
CCC
CN
CCC
CN
CCC
CPC
 
CPP
PNP
P
CCN
CNN
PNN
CPN
POSTPLANT
(selective)
BRO CAR CHS DIA* FEN MCA* MES PEN TRA 24D*
NNNNCNCN
CCNNC
NNNNCNCCN
CPCCNCC
NCCNCNCC
CPCNPP
CCCCNCCC
PCCCNCCC
NNNNNNCN
PCCPNPC
CPCCNCPNC
CPCCNCNC
CCCNPNC
 
PCPNNPC
NPPNNNP
NCNPNP
NNNCNNN
NNNNNNN
NNNNNNNNN
NPNCC
 
 
ANNUAL WEEDS
barnyardgrass
bassia, fivehook
foxtails (yellow and green)
goosefoot, nettleleaf
knotweed, prostrate
kochia
lambsquarters, common
pigweed, redroot
polypogon, rabbitfoot
spurge, prostrate
starthistle, yellow
sunflowers
thistle, Russian
PERENNIAL WEEDS
bindweed, field (seedling)
bindweed, (mature plant)
buttercup, crowfoot
johnsongrass, (seedling)
johnsongrass, (mature plant)
nutsedge, yellow
smartweed, pale

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

Chemical Legend
24D = 2,4-D Amine*
BRO = bromoxynil (Buctril)
CAR = carfentrazone (Shark)
CHS = chlorsulfuron (Glean)
CLO = clopyralid (Stinger)
DIA = dicamba* (Banvel, Clarity)
FEN = fenoxaprop (Puma)
 
GLY = glyphosate (Roundup)
MCA = MCPA Amine*
MES = mesosulfuron (Osprey)
PAR = paraquat* (Gramoxone)
PEN = pendimethilin (Prowl H20)
PYR = pyraflufen-ethyl (ET)
TRA = tralkoxydim (Achieve)

Comments
*   Permit required from county agricultural commissioner for purchase or use.
+   Control varies depending on size of weed at application; the smaller the weed, the better the control.

[Precautions]

PUBLICATION

[UC Peer Reviewed]

UC IPM Pest Management Guidelines: Small Grains
UC ANR Publication 3466
Weeds
W. M. Canevari, UC Cooperative Extension, San Joaquin County
S. D. Wright, UC Cooperative Extension, Tulare County
H. L. Carlson, UC Cooperative Extension, Siskiyou County
L. F. Jackson, Agronomy, UC Davis
Acknowledgment for contributions to Weeds:
M. J. Smith, UC Cooperative Extension, San Luis Obispo County
C. E. Bell, UC Cooperative Extension, San Diego County
D. W. Cudney, Botany and Plant Sciences, UC Riverside
R. N. Vargas, UC Cooperative Extension, Madera County
J. E. Hill, Agronomy, UC Davis

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