Agriculture: Plum Pest Management Guidelines

Susceptibility of Winter Weeds to Herbicide Control

  Preemergent
FLM ISO NAP NOR ORY OXY PEN PRO TRI THI
ANNUAL WEEDS
barley, hare N C C C P C C C C
bluegrass, annual C N C C C P C C C C
brome, downy N C C C N C C C C
brome, ripgut N C C C C C C C
canarygrass N C C C P C C C C
clovers C P P N N P N N N C
cudweeds P C C N N N N N C
fiddlenecks C C C C C C C C
filarees C C C P N C N N P C
groundsel, common C C C P N C N N N C
henbit C C N P P C C C C C
mallow, little C P P P P C N P N P
miner's lettuce C C C C P C C
mustards C C P P N C N C N P
nettle, burning C C P C P C C P P C
oat, wild C N C P P P P P P C
pineapple-weed C C P N C N N N C
polypogon, rabbitfoot N C C N C C
radish, wild C N P N C N P N N
redmaids (desert rockpurslane) C C C C C C C C
rocket, London C C P N C N C N P
ryegrasses N C C C N C C C C
shepherd's–purse C C P P N C C C N C
  Postemergent Comb.
CLE FLU GLY MSM OXY PAR* SET 24D* ORY
OXY
GLY1
OXY
ANNUAL WEEDS
barley, hare C C C N P P C N P C
bluegrass, annual C N C C P P N N C C
brome, downy C P C P N P P N P C
brome, ripgut C P C P N P C N P C
canarygrass C C C N P P C N C
clovers N N P N P P N P P P
cudweeds N N C N P N N P N C
fiddlenecks N N C N C C N P C
filarees N P P N C P N P P C
groundsel, common N N C N C C N P C C
henbit N N C N C C N P C C
mallow, little N N P N C N N N C C
miner's lettuce N N C N C N N C
mustards N N C N P C N C P C
nettle, burning N N N N P P N P P P
oat, wild C C C N N P C N P C
pineapple-weed N N C N P N N C
polypogon, rabbitfoot C C C N P C N C
radish, wild N N C N P P N C P C
redmaids (desert rockpurslane) N N C C C N C C C
rocket, London N N C N C C N C C C
ryegrasses C C C2 P N P C N N C
shepherd's–purse N N C N P C N C P C
C= control P= partial control N= no control = no information
CLE = clethodim (Select Max) OXY = oxyfluorfen (GoalTender)
FLU = fluazifop-p-butyl (Fusilade) PAR = paraquat* (Gramoxone)
FLM = flumioxazin (Chateau) PEN = pendimethalin (Prowl H20)
GLY = glyphosate (Roundup) PRO = pronamide (Kerb)
ISO = isoxaben (Gallery) SET = sethoxydim (Poast)
MSM = MSMA (MSMA 6 Plus) THI = thiazopyr (Visor)
NAP = napropamide (Devrinol) TRI = trifluralin (Treflan)
NOR = norflurazon (Solicam) 24D = 2,4-D* (Orchard Master)
ORY = oryzalin (Surflan)    
* Permit required from county agricultural commissioner for purchase or use.
1 At rates used for annual weeds, control of perennials is less than expected with high label rates.
2 Some populations in California are known to be resistant.
Text Updated: 04/09
Feedback