Agriculture: Small Grains Pest Management Guidelines

Susceptibility of Winter Weeds to Herbicide Control

BRO CAR CHS CLO DIA* FEN GLY MCA* MES PAR* PEN PYR TRI 24D*
ANNUAL WEEDS
barley, hare N N C N N N N N C P/C+ N N N
bluegrass, annual N N C N N N N N C P/C+ C N C N
brome, ripgut N N C N N N N NP NP N C N
burclover, California NP C C C N CP NP C
canarygrass, hood N N C N N C N N C N C N C N
canarygrass, littleseed N N C N N C N N C N C N C N
chamomile, mayweed C C C N C NP C N N
chickweed, common NP C P N C N C C P C C N
fiddleneck, coast C C C P N CPPP C N CP
filarees NP P C NPP C P C
groundsel, common P/C+ C P N C CP C N C
henbit N/P+ C C N C CP C C C C C
knotweed, prostrate N C N C NP C N N N C C C
ladysthumb P/C C C N CPP N C C
lettuce, prickly C C P NP CP C N C C
mallow, little (cheeseweed) NP C N C NPPP N N C P
milkthistles N C N CPPP N C
miner's lettuce N C P N C N C C C N
mustards CP C N C N C C C C P C
nettle, burning N C N N C N N N C N
oat, wild N N C N N C C N C P/C+ C NP N
oxtongue, bristly C C P N P N C
pimpernel, scarlet C N C N
pineapple-weed C C P N CP C N C C
radish, wildPP C P N C P/C+ C P/C+ N C C
redmaids (desert rockpurslane) N C C N C C N C C C
rocket, London C C CP C N C C CP C C
ryegrass, Italian N N C N N N C N C P/C+ C N C N
shepherd's-purse CP CP C N C C CP CP C
smartweed, pale P/C C C N C P C
sowthistle, annual CP CP C N CP C N C C
sowthistle, spiny N P C N C N N
spurry, corn N C N N C N C N N
stickleafs N C N C N N N
tarweeds C C C N CP C N P
C = control    P = partial control    N = no control    = no information
BRO = bromoxynil (Buctril) MCA = MCPA Amine*
CAR = carfentrazone (Shark) MES = mesosulfuron (Osprey)
CHS = chlorsulfuron (Glean) PAR = paraquat* (Gramoxone)
CLO = clopyralid (Stinger) PEN = pendimethalin (Prowl H20)
DIA = dicamba* (Banvel, Clarity) PYR = pyraflufen-ethyl (ET)
FEN = fenoxaprop (Puma) TRI = trifluralin (Treflan)
GLY = glyphosate (Roundup) 24D = 2,4-D Amine*
* 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.
Text Updated: 07/16