Agriculture: Potato Pest Management Guidelines

Susceptibility of Weeds to Herbicide Control

  CAR CLE DIM EPT FLM GLY MCH MET PAR* PEN RIM SET TRI
ANNUAL WEEDS
barnyardgrass N C P C N C P P P C C C C
bluegrass, annual N C P C C C C P C C C N C
buckwheat, wild N P C N C C C N C
cereals, volunteer C C N P C N C C N
cudweeds N N C N C C N N N
dodders N C N N N N N N
fiddleneck, coast C N P C N C C P P
foxtails N C C C N C C P C C C C C
knotweed, common N N P N C P C N C
lambsquarters, common C N C P P C P C C P P N P
mustards P N N P C N C P N C N N
nettle, burning C N C N C N N C C P N P
nightshade, black P N P P C C C P C N N N
nightshade, hairy P N P C P C C P C N P N N
oats, wild N C C C N C N P P P P C P
pigweeds C N C C P C C C C C C N C
puncturevine N N C C P C C C N C
purslane, common N N C P C C P C C C N C
radish, wild P N N C N C P N C N N
rocket, London C N C C C C C N N N
sandburs N C C N C C P C C C C
shepherd's-purse P N C C C P C C N N N
smartweed, pale N C C P P P N
thistle, Russian N N C N C C C N C
witchgrass N C C C C P C C C
PERENNIAL WEEDS
bermudagrass N P N C N N N N N P N
bindweed, field (seedling) P N N N C N N P P P N P
bindweed, field (perennial) C N N N N P N N N N P N P
johnsongrass N C N C N N N N P C N
nutsedge, purple N N C N C N N P N N N
nutsedge, yellow N N P C C C P P N N
quackgrass C P N C N P N N P C N
thistle, Canada N N N N P N P N N N N
C = control   P = partial control   N = no control   = no information

CAR = carfentrazone (Shark) MET = metribuzin (Sencor)
CLE = clethodim (Intensity) PAR = paraquat* (Gramoxone)
DIM = dimethenamid (Outlook) PEN = pendimethalin (Prowl)
EPT = EPTC (Eptam) RIM = rimsulfuron (Matrix)
FLM = flumioxazin (Tuscany) SET = sethoxydim (Poast)
GLY = glyphosate (Roundup) TRI = trifluralin (Treflan)
MCH = s-metolachlor (Dual Magnum II)
* Permit required from county agricultural commissioner for purchase or use.
Text Updated: 08/19