Cotton

Pest Management Guidelines


Susceptibility of Weeds in Cotton to Herbicide Control

(Reviewed 5/13, updated 5/13)

In this Guideline: More about weeds in cotton:

Customize LIST OF WEEDS PREEMERGENCE POSTEMERGENCE
ANNUAL WEEDS DIU MEO MET* OXY PEN PRM TRI CAR CLE FLM FLU GLU GLY MSM PAR* PRS PYR SET
barley, foxtail N N
barley, hare C P C P C P C N C C C N C N N C
barnyardgrass C C C P C N C N C C P P C N N N N C
bluegrass, annual C C C P C C C N C C N C C C C N N N
bromegrasses C C P C N C N P P C C P C N N P
canarygrass C C C P C P C N C C C C N C N N C
chickweeds C C C P C C C C N C N C C C C C N
clovers C N N C N C N N C N C C N P N N
cockleburs C C P N C N P N N C C P C C C N
crabgrass, large C C C C C P C N C C C C C N C N N C
cudweeds C N C P N P N N N C C N N N N
cupgrasses C C C P C P C N C C C C P C N N C
fescues C C P C P C N P P C N C N N P
fiddlenecks C N C C C C C C N N C C N C N C N
filarees C N C C P C P C N N C P N P N
fingergrasses C C P C N C C C C C N N
fleabane, hairy C N C P N C N N N C N C N N C N N
foxtails (bristlegrass) C C C P C C C N C N C C P C N N C
goosefoot, nettleleaf C P C C C C C N N C C N C C N
groundcherries C C C C N C N C N C N C C P C P C N
groundsels C N C C N C N C N C N C C N C C N
henbit N C C P C P N C N C C N C N
horseweed C N C P N C N P N C N C N N C P N
junglerice C C C P C P C N C C C C N N P N N C
knotweed, common C N C C C C C N N C C N P C N
lambsquarters, common C P C C C C C C N C N C P N P N C N
lettuce, prickly C C C N P N N N C C N C N N
lovegrasses C C C P C P C N C C C N C N N C
mallow, little (cheeseweed) P P C C N P N C N C N C P N N N C N
miner's lettuce C C C C C C N N C N C N
morningglory N N C P N P N C N C N C C P P P C N
mustards C N C C N C N P N N C C N C C C N
nettles C C C C P C P C N C N C C N C P C N
nightshades C C C C N C N P N C N C C P C C C N
oat, wild P N C P N P N N C C C C C N P N N C
pigweeds C C C C C C C C N C N C P N C C C N
pineapple-weed C C P N C N N N N C C N C N
polypogon, rabbitsfoot C C C P C C C N C C C N C N N C
puncturevine N C P P P P N C N C C P C P N
purslane, common C C C C C C C N N C N C C P C P C N
radish, wild C N C C N C N P N N C C N P N
redmaids C C C C C C N C N C P C N
rocket, London C N C C N C N C N N C C N C C N
ryegrasses C C C P C P C N C C P P C N N C
sandburs N C C N C N C N C C C C C C N N C
shepherd's-purse C P C C N N N P N C N C C N C C N
sowthistles C P C C N C N N N C N C C N C C N
speedwells N C C P C P N N N C N C N
sprangletops N C C P N C N C C C P N C N N C
spurges N N C P N P N P N N C C N C N N N
sunflower, common C N P C N C N N N C C N P C N
thistle, Russian N P C P P P P N N C C C P N N
thornapple, Chinese
velvetleaf P C N N C N N C C P C C C N
witchgrass C C P C P C N C C C C P C N N C
PERENNIAL WEEDS
bermudagrass (established) N N P N N N N N P P P P N N N N P
bermudagrass (seedling) N N C N C P C N C C P C N P N N C
bindweed, field (established) N N P N N N N P N N N P P N N P P N
bindweed, field (seedling) P N P N N P N C N N N P C C C P C N
datura, sacred N P N N N N N N C N C P N
johnsongrass (established) N N P N N N N N C C P C P N N N C
johnsongrass (seedling) N C P N P N P N C C P C C C N N C
knapweed, Russian N P N N N N N N P N N N
nightshade, silverleaf N N P N N N N N N N P N N P N
nutsedge, purple N N P N N N N N N N N P P P N N N N
nutsedge, yellow N P C N N N N N N P N P P C N N N N
sida, alkali N P N N N N N N N P N N N N

Ratings Legend
C= control P= partial control N= no control = no information

Chemical Legend
CAR = carfentrazone (Shark) MSM = MSMA
CLE = clethodim (Select Max) OXY = oxyfluorfen (Goal)
DIU = diuron (Karmex) PAR = paraquat* (Gramoxone Inteon)
FLM = flumioxazin (Chateau) PEN = pendimethalin (Prowl)
FLU = fluazifop-p-butyl (Fusilade) PRM = prometryn (Caparol)
GLU = gluphosinate (Rely) PRS = pyrithiobac sodium (Staple)
GLY = glyphosate (Roundup) PYR = pyraflufen ethyl (ET)
MEO = metolachlor (Dual Magnum) SET = sethoxydim (Poast)
MET = metam sodium* (Vapam) TRI = trifluralin (Treflan)

Comments
* Permit required from county agricultural commissioner for purchase or use.

[Precautions]

PUBLICATION

[UC Peer Reviewed]

UC IPM Pest Management Guidelines: Cotton
UC ANR Publication 3444

Weeds
  • S. D. Wright, UC Cooperative Extension, Tulare County
  • D. J. Munier, UC Cooperative Extension, Glenn County
Acknowledgment for contributions to Weeds:
  • R. N. Vargas, UC Cooperative Extension, Madera County
  • T. S. Prather, Plant, Soil, and Entomological Sciences, Univ. of Idaho, Moscow, Idaho

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