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  4. Susceptibility of Weeds to Herbicide Control

Agriculture: Rice Pest Management Guidelines

Susceptibility of Weeds to Herbicide Control

Weeds Pages

  BSF B/H BIS CAR CLM CYH FLP HAL ORT PEN PEO PNX PRP* THB* T/I* TRP
Mode of Action 2 27/2 2 14 13 1 4 2 2 3 2 2 5 15 15/2 4
ANNUAL GRASSES
barnyardgrass N P C1 N C1 C1 P N P1 C C1 C1 C1 C1 C1 N
sprangletop, bearded N C N N C1 C1 N N N C N N N C C N
watergrass, early N P C1 N C1 C1 P N P1 C C1 C1 C1 C1 C1 N
watergrass, late N P C1 N C1 C1 P N P1 C C1 C1 C1 C1 P1 N
ANNUAL BROADLEAVES/SEDGES
arrowhead, California C1 C C1 C N N C C1 C1 N C1 C1 P N C1 N
bulrush, ricefield C1 C P1 C N N C C1 C1 N C1 P1 C1 N C1 C
ducksalad C C C P N N C C C N C C P N C N
redstems C1 P P1 C N N C C1 C1 N C1 P1 P N C1 C
sedge, smallflower umbrella C1 C P1 C N N C C1 C1 N P1 P1 C1 C C1 N
PERENNIALS
arrowhead, Gregg N C N N N N C C1 — — N — N C1 N N
monochoria (pickerelweed) C C C P N N C C C N C C P N C N
C= control P= partial control N= no control —= no information
BSF = bensulfuron (Londax) ORT = orthosulfamuron (Strada CA)
B/H = benzobicyclon/halosulfuron (Butte) PEN = pendimethalin (Prowl H2O)
BIS = bispyribac-sodium (Regiment CA) PEO = penoxsulam (Granite SC)
CAR = carfentrazone-ethyl (Shark H2O) PNX = penoxsulam (Granite GR)
CLM = clomazone (Cerano) PRP = propanil* (Stam, SUPERWHAM!)
CYH = cyhalofop-butyl (Clincher CA) THB = thiobencarb* (Abolish, Bolero Ultra Max)
FLP = florpyrauxifen-benzyl (Loyant CA) T/I = thiobencarb*/imazosulfuron (League MVP)
HAL = halosulfuron-methyl (Sandea) TRP = triclopyr (Grandstand CA)
1 Resistance known to occur. For more information on herbicide resistance by mode of action, see the California Rice Weed Herbicide Susceptibility Chart at UC Rice Online.
* Permit required from county agricultural commissioner for purchase or use.

Text Updated: 07/23

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