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Pest Management Guidelines

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Susceptibility of Weeds to Herbicide Control

(Reviewed 5/06, updated 4/09)

In this Guideline:

How to customize
Winter
Spring/summer
Legends
Publication
Glossary

More about weeds in plum:

Susceptibility of Winter Weeds to Herbicide Control in Plum

Customize LIST OF WEEDS

ANNUAL WEEDS

barley, hare

bluegrass, annual

brome, downy

brome, ripgut

canarygrass

clovers

cudweeds

fiddlenecks

filarees

groundsel, common

henbit

mallow, little

miner's lettuce

mustards

nettle, burning

oat, wild

Pineapple-weed

polypogon, rabbitfoot

radish, wild

redmaids

rocket, London

ryegrasses

Shepherd's-purse

Preemergence
FLM	ISO	NAP	NOR	ORY	OXY	PEN	PRO	TRI	THI
—	N	C	C	C	P	C	C	C	C
C	N	C	C	C	P	C	C	C	C
—	N	C	C	C	N	C	C	C	C
—	N	C	C	C	—	C	C	C	C
—	N	C	C	C	P	C	C	C	C
C	P	P	N	N	P	N	N	N	C
—	P	C	C	N	N	N	N	N	C
—	C	C	C	C	C	C	—	C	C
C	C	C	P	N	C	N	N	P	C
C	C	C	P	N	C	N	N	N	C
C	C	N	P	P	C	C	C	C	C
C	P	P	P	P	C	N	P	N	P
—	C	—	C	C	C	—	P	C	C
C	C	P	P	N	C	N	C	N	P
C	C	P	C	P	C	C	P	P	C
C	N	C	P	P	P	P	P	P	C
—	C	C	P	N	C	N	N	N	C
—	N	—	C	C	N	—	—	C	C
—	C	N	P	N	C	N	P	N	N
C	C	—	C	C	C	C	—	C	C
—	C	C	P	N	C	N	C	N	P
—	N	C	C	C	N	C	C	C	C
C	C	P	P	N	C	C	C	N	C

Postemergence
CLE	FLU	GLY	MSM	OXY	PAR*	SET	24D*
C	C	C	N	P	P	C	N
C	N	C	C	P	P	N	N
C	P	C	P	N	P	P	N
C	P	C	P	N	P	C	N
C	C	C	N	P	P	C	N
N	N	P	N	P	P	N	P
N	N	C	N	P	N	N	P
N	N	C	N	C	C	N	P
N	P	P	N	C	P	N	P
N	N	C	N	C	C	N	P
N	N	C	N	C	C	N	P
N	N	P	N	C	N	N	N
N	N	C	N	—	C	N	N
N	N	C	N	P	C	N	C
N	N	N	N	P	P	N	P
C	C	C	N	N	P	C	N
N	N	C	N	—	P	N	N
C	C	C	N	—	P	C	N
N	N	C	N	P	P	N	C
N	N	C	—	C	C	N	C
N	N	C	N	C	C	N	C
C	C	C²	P	N	P	C	N
N	N	C	N	P	C	N	C

Combinations
ORY OXY	GLY¹ OXY
P	C
C	C
P	C
P	C
—	C
P	P
N	C
—	C
P	C
C	C
C	C
C	C
—	C
P	C
P	P
P	C
—	C
—	C
P	C
C	C
C	C
N	C
P	C

Susceptibility of Spring and Summer Weeds to Herbicide Control in Plum

Customize LIST OF WEEDS

ANNUAL WEEDS

barnyardgrass

chickweed, common

cockleburs

crabgrasses

fleabane, hairy

foxtails

cudweeds

filarees

goosefoot, nettleleaf

goosegrass

groundcherries

horseweed

junglerice

knotweed, common

lambsquarters, common

lettuce, prickly

lovegrass

nightshades

pigweeds

puncturevine

purslane, common

sandburs

sowthistles

sprangletops

spurge, spotted

starthistle, yellow

thistle, Russian

Willowherb, panicle-leaf

witchgrass

PERENNIAL WEEDS

bermudagrass (Se)

bermudagrass (Pr)

bindweed, field (Se)

bindweed, field (Pr)

blackberries

dallisgrass (Se)

dallisgrass (Pr)

dandelion (Se)

dandelion (Pr)

dock, curly (Se)

dock, curly (Pr)

fescues

fluvellins

johnsongrass (Se)

johnsongrass (Pr)

nutsedge, yellow

nutsedge, purple

oxalis, buttercup

plantain, buckhorn (Se)

plantain, buckhorn (Pr)

Preemergence
FLM	ISO	NAP	NOR	ORY	OXY	PEN	PRO	TRI	THI
P	N	C	P	C	P	C	C	C	C
C	C	C	P	C	N	C	C	C	C
C	P	C	C	N	C	N	N	N	C
P	N	C	P	C	N	C	C	C	C
C	P	N	P	N	P	N	N	N	C
P	N	C	C	C	N	C	C	C	C
—	P	C	C	N	N	N	N	N	C
C	C	C	P	N	C	N	N	P	C
—	C	C	C	C	C	P	C	C	C
P	N	—	C	C	N	C	C	C	C
—	C	N	C	P	C	N	C	N	C
C	P	N	P	N	P	N	N	N	P
P	N	C	C	C	P	C	P	C	C
—	C	C	P	C	P	C	C	C	P
C	C	C	P	C	C	C	C	C	C
—	C	C	P	N	C	N	N	N	C
P	N	C	P	C	P	C	C	C	C
C	C	N	C	N	C	N	C	N	—
C	C	C	P	C	C	C	N	C	P
C	P	N	C	P	C	C	N	P	P
C	C	C	P	C	C	C	C	C	C
—	N	C	P	C	N	C	—	C	C
C	C	C	P	N	C	N	P	N	C
—	N	C	P	C	N	C	C	P	—
C	C	N	P	P	P	C	P	N	P
—	—	—	—	N	C	N	N	N	—
C	P	C	C	P	P	P	P	P	P
C	P	N	P	P	C	—	—	—	—
—	N	—	C	P	C	C	C	C	C

—	N	C	C	C	N	C	N	N	N
—	N	N	P	N	N	N	N	N	N
—	C	N	P	P	N	P	N	P	C
—	C	N	N	N	N	N	N	P	P
—	—	N	N	N	N	N	—	N	N
—	N	C	N	C	N	C	C	C	C
—	N	N	N	N	N	N	N	N	N
—	—	C	N	P	N	—	—	—	P
—	N	N	N	N	N	N	—	N	N
—	C	P	N	P	C	C	C	C	C
—	N	N	N	N	N	N	N	N	N
—	N	—	C	C	P	—	C	C	C
—	—	—	—	—	—	—	—	—	—
C	N	C	C	C	N	C	C	C	C
—	N	N	P	N	N	N	N	N	N
P	N	N	P	N	N	N	N	N	P
N	N	N	P	N	N	N	N	N	P
—	C	N	—	P	C	P	—	P	C
P	P	—	—	—	—	—	N	—	P
P	P	N	N	N	N	N	N	N	N

Postemergence
CLE	FLU	GLY	MSM	OXY	PAR*	SET	24D*
C	P	C	N	N	P	C	N
N	N	C	C	P	C	N	P
N	N	C	P	C	C	N	C
C	C	C	C	P	C	C	N
N	N	C	N	P	P	N	P
C	C	C	—	N	C	C	N
N	N	C	N	P	N	N	P
N	P	P	N	C	P	N	P
N	N	C	N	P	C	N	C
C	C	C	C	N	P	—	N
N	N	C	P	C	C	N	C
N	N	C	N	P	P	N	C
C	P	C	—	N	P	C	N
N	N	P	N	P	C	N	P
N	N	C	N	C	C	N	C
N	N	C	N	C	P	N	C
C	C	C	P	N	P	C	N
N	N	C	P	C	C	N	C
N	N	C	N	C	C	N	P
N	N	C	P	P	C	N	C
N	N	P	P	C	C	N	C
C	P	C	P	N	P	P	N
N	N	C	N	C	P	N	C
C	P	C	N	P	P	P	N
N	N	C	N	N	C	N	C
N	N	C	N	N	C	N	C
N	N	C	P	P	C	N	P
N	N	P	—	N	N	N	C
C	C	C	P	N	N	C	N

C	C	C	N	N	P	C	N
P	P	P	N	N	N	P	N
N	N	C	N	N	P	N	C
N	N	P	N	N	N	N	P
N	N	C	N	N	N	N	P
C	C	C	C	N	N	C	N
P	P	P	C	N	N	P	N
N	N	C	N	N	P	N	C
N	N	P	N	N	N	N	C
N	N	C	N	C	P	N	C
N	N	P	N	N	N	N	P
P	P	C	N	N	P	P	N
N	N	P	—	—	—	N	—
C	C	C	C	N	C	C	N
P	P	P	N	N	N	P	N
N	N	P	C	N	N	N	N
N	N	P	C	N	N	N	N
N	N	C	P	—	P	N	P
N	N	C	N	—	C	N	C
N	N	P	N	—	N	N	P

Combinations
ORY OXY	GLY¹ OXY
C	C
C	C
C	C
C	C
P	C
C	C
P	C
C	C
C	C
—	C
C	C
P	C
C	C
C	P
C	C
C	C
C	C
C	C
C	C
P	C
C	P
P	C
C	C
—	C
P	C
—	C
P	C
C	P
C	C

C	C
N	P
P	C
N	P
—	C
P	C
N	P
—	C
—	P
C	C
N	N
C	C
—	P
C	C
N	P
N	P
N	P
—	C
—	C
—	P

Weed Legend
Se = seedling	Pr = perennial plant

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

Chemical Legend

24D = 2,4-D* (Orchard Master)

CLE = clethodim (Select Max)

FLM = flumioxazin (Chateau)

FLU = fluazifop-p-butyl (Fusilade)

GLY = glyphosate (Roundup)

ISO = isoxaben (Gallery)

MSM = MSMA (MSMA 6 Plus)

NAP = napropamide (Devrinol)

NOR = norflurazon (Solicam)

ORY = oryzalin (Surflan)

OXY = oxyfluorfen (GoalTender)

PAR = paraquat* (Gramoxone)

PEN = pendimethalin (Prowl H20)

PRO = pronamide (Kerb)

SET = sethoxydim (Poast)

THI = thiazopyr (Visor)

TRI = trifluralin (Treflan)

Comments
* 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.

PUBLICATION

UC IPM Pest Management Guidelines: Plum
UC ANR Publication 3462

Weeds

A. Shrestha, Kearney Agricultural Center, Parlier
W. T. Lanini, Weed Science/Plant Sciences, UC Davis
F. J. A. Niederholzer, UC Cooperative Extension, Sutter-Yuba counties

Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2013 The Regents of the University of California. All rights reserved.

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