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  4. Susceptibility of Spring/Summer Weeds to Herbicide Control

Agriculture: Plum Pest Management Guidelines

Susceptibility of Spring/Summer Weeds to Herbicide Control

Weeds Pages

  Preemergence
  FLM IND ISO MES NOR ORY OXY PEN PRO RIM TRI
Mode of Action1 14 29 29 27 12 3 14 3 3 2 3
ANNUAL WEEDS
barnyardgrass C C N N P C P C C C C
chickweed, common — C — C — — — — — C —
cocklebur — — P C C N C N N P N
crabgrasses C C N N P C N C C C C
cudweeds — C P — C N N N N — N
fleabane, hairy C C P P P N P N N C N
foxtails C C N N C C N C C C C
filarees — C C P P N C N N C P
goosefoot, nettleleaf C C C — C C C P C P C
goosegrass C — N N C C N C C — C
goosegrass, threespike P C C N — C P C — P —
groundcherry — C C — C P C N C C N
horseweed C C P P P N P N N C N
junglerice — C N N C C P C P C C
knotweed, common — P C P P C P C C C C
lambsquarters, common C C C P P C C C C C C
lettuce, prickly — P C P P N C N N C N
lovegrasses C C N N P C P C C P C
nightshades C C C C C N C N C C N
pigweeds C C C C P C C C N C C
puncturevine C — P C C P C C N C P
purslane, common C C C C P C C C C C C
sandburs — C N N P C N C — — C
sowthistles C C C P P N C N P P N
sprangletops — C N N P C N C C — P
spurge, spotted C C C C P P P C P C N
starthistle, yellow — C — P — N C N N P N
thistle, Russian C C P — C P P P P P P
willowherb, panicle-leaf — C P P P P C — — — —
witchgrass — — N N C P C C C — C
PERENNIAL WEEDS
bermudagrass (Pr) — N N N P N N N N N N
bermudagrass (Se) — — N N C C N C N N N
bindweed, field (Pr) N N C P N N N N N N P
bindweed, field (Se) — P C C P P N P N P P
blackberries, wild — — — — N N N N — — N
dallisgrass (Pr) — N N N N N N N N N N
dallisgrass (Se) — — N N N C N C C N C
dandelion (Pr) P N N N N N N N — N N
dandelion (Se) C — P P N P N N N — N
dock, curly (Pr) — N N — N N N N N N N
dock, curly (Se) — — C — N P C C C — C
fescues — P N N C C P — C P C
fluvellins — — — P — — — — — — —
johnsongrass (Pr) — N N N P N N N N N N
johnsongrass (Se) C C N N C C N C C P C
nutsedge, purple — N N — P N N N N P N
nutsedge, yellow — N N P P N N N N P N
oxalis — — C — — P C P — — P
plantain, buckhorn (Pr) — N P — N N N N N N N
plantain, buckhorn (Se) — — P — — — — — N — —
  Postemergence
  CAR CLE FLU GLY GLU OXY PAR PYR SET 24D
Mode of Action1 14 1 1 9 10 14 22 14 1 4
ANNUAL WEEDS
barnyardgrass N C P C C N P N C N
chickweed, common — — — — C — — C — —
cocklebur P N N C C C C C N C
crabgrasses N C C C C P C N C N
cudweeds N N N C C P N C N P
fleabane, hairy N N N C C P P P N P
foxtails — C C C C N C N C N
filarees C N P P C C P P N P
goosefoot, nettleleaf — N N C C P C C N C
goosegrass N C C C C N P — — N
goosegrass, threespike N C C P P N P N C N
groundcherry C N N C C C C C N C
horseweed N N N C C P P P N C
junglerice N C P C C N P N C N
knotweed, common — N N P C P C C N P
lambsquarters, common C N N C C C C C N C
lettuce, prickly P N N C C C P C N C
lovegrasses N C C C — N P N C N
nightshades P N N C C C C C N C
pigweeds C N N C C C C C N P
puncturevine — N N C C P C P N C
purslane, common P N N P C C C C N C
sandburs N C P C C N P N P N
sowthistles N N N C C C P C N C
sprangletops N C P C C P P N P N
spurge, spotted — N N C C N C C N C
starthistle, yellow N N N C C N C P N C
thistle, Russian C N N C C P C C N P
willowherb, panicle-leaf — N N P C N N P N C
witchgrass N C C C C N N N C N
PERENNIAL WEEDS
bermudagrass (Pr) N P P P P N N N P N
bermudagrass (Se) N C C C C N P N C N
bindweed, field (Pr) P N N P P N N N N P
bindweed, field (Se) C N N C C N P P N C
blackberries, wild — N N C P N N N N P
dallisgrass (Pr) N P P P P N N N P N
dallisgrass (Se) N C C C C N N N C N
dandelion (Pr) — N N P P N N — N C
dandelion (Se) — N N C C N P — N C
dock, curly (Pr) — N N P — N N N N P
dock, curly (Se) — N N C — C C — N C
fescues N P P C C N P N P N
fluvellins — N N P C — — — N —
johnsongrass (Pr) N P P P P N N N P N
johnsongrass (Se) N C C C C N C N C N
nutsedge, purple N N N P — N N N N N
nutsedge, yellow N N N P P N N N N N
oxalis — N N C P — P — N P
plantain, buckhorn (Pr) — N N P P — N N N P
plantain, buckhorn (Se) — N N C C — C — N C
Ccontrol Ppartial control Nno control —no informationSeseedlingPrperennial
CAR carfentrazone (Shark EW) ISO isoxaben (Trellis SC) PRO pronamide (Kerb SC)
CLE clethodim (Select Max) MES mesotrione (Broadworks) PYR pyraflufen-ethyl (Venue)
FLM flumioxazin (Chateau SW) NOR norflurazon* (Solicam DF) RIM rimsulfuron (Matrix SG)
FLU fluazifop-P-butyl (Fusilade DX) ORY oryzalin (Surflan AS) SET sethoxydim (Poast)
GLU glufosinate (Rely 280) OXY oxyfluorfen (GoalTender) TRI trifluralin (Treflan HFP)
GLY glyphosate (Roundup PowerMAX) PAR paraquat* (Gramoxone SL 3.0) 24D 2,4-D* (Orchard Master CA
IND indaziflam (Alion) PEN pendimethalin (Prowl H2O)    
* Permit required from county agricultural commissioner for purchase or use.
1 Group numbers are assigned by the Weed Science Society of America (WSSA) according to different modes of action. Although weeds may exhibit multiple resistance across many groups, mode of action numbers are useful in planning mixtures or rotations of herbicides with different modes of action.

Text Updated: 03/25

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