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How to Manage Pests

UC Pest Management Guidelines

| More pests | More crops | About guidelines |

Almond

Susceptibility of Weeds to Herbicide Control

(Reviewed 3/09, updated 3/09)

In this Guideline:

Winter
Spring/summer
Legends
Publication
Glossary

More about weeds in almond:

Susceptibility of Winter Weeds to Herbicide Control

Customize list of weeds

ANNUAL WEEDS

barley, hare

bluegrass, annual

bromegrasses

clovers

cudweeds

filarees

groundsel, common

henbit

mallow, little

mustards

nettle, burning

oat, wild

radish, wild

redmaids (desert rockpurslane)

rocket, London

ryegrasses

shepherd's-purse

PREEMERGENT
FLM	ISO	NAP	NOR	ORY	OXY	PEN	SIM	TRI
—	N	C	C	C	P	C	C	C
—	N	C	C	C	P	C	C	C
—	N	C	C	C	P	C	C	C
C	P	P	N	N	C	P	C	N
—	C	C	C	N	N	N	C	N
C	C	C	C	N	C	C	C	P
C	C	C	P	N	C	P	C	N
C	C	P	P	P	C	C	C	C
C	C	P	C	N	C	P	N	P
C	C	P	C	N	C	N	C	N
C	C	N	C	P	C	N	C	N
C	N	C	P	C	P	P	C	P
—	C	P	P	N	C	N	C	N
C	—	N	C	C	C	C	C	C
—	C	P	C	N	C	C	C	N
—	N	C	C	C	P	C	C	C
C	C	N	C	N	C	N	C	N

POSTEMERGENT
GLU	GLY	OXY	PAR*	24D*
—	C	P	C	N
C	C	P	C	N
C	C	N	C	N
C	C	P	P	P
C	C	P	N	P
C	P	C	P	C
C	C	C	C	C
C	C	C	C	C
C	P	C	N	N
C	C	P	C	C
C	C	P	C	C
C	C	N	C	N
C	C	P	P	P
—	C	C	C	C
C	C	C	C	C
—	C²	N	C	N
C	C	P	C	C

COMBINATIONS
ORY OXY	GLY¹ OXY
P	C
C	C
P	C
P	P
P	C
P	C
C	C
C	C
C	C
P	C
P	C
P	C
P	C
C	C
P	C
N	C
P	C

ANNUAL WEEDS

barley, hare

bluegrass, annual

bromegrasses

clovers

cudweeds

filarees

groundsel, common

henbit

mallow, little

mustards

nettle, burning

oat, wild

radish, wild

redmaids (desert rockpurslane)

rocket, London

ryegrasses

shepherd's-purse

Susceptibility of Spring/Summer Weeds to Herbicide Control in Almonds

Customize list of weeds

ANNUAL WEEDS

barnyardgrass

chickweed, common

crabgrasses

fleabane, hairy

foxtails

goosefoot, nettleleaf

horseweed

junglerice

knotweed, common

lambsquarters, common

lettuce, prickly

mallow, little

nettle, burning

nightshades

pigweeds

puncturevine

purslane, common

sandburs

sowthistles

sprangletops

thistle, Russian

PERENNIAL SEEDLINGS

bermudagrass

bindweed, field

dallisgrass

dandelion

dock, curly

johnsongrass

PERENNIAL PLANTS

bermudagrass

bindweed, field

blackberries

dallisgrass

dandelion

dock, curly

johnsongrass

nutsedge, yellow

Preemergent
FLM	ISO	NAP	NOR	ORY	OXY	PEN	SIM	TRI
—	N	C	C	C	P	C	P	C
C	C	C	P	C	P	C	C	C
P	N	C	C	C	P	C	N	C
C	C	N	P	N	P	N	C	N
—	N	C	C	C	N	C	C	C
C	C	C	C	C	C	P	C	C
C	C	N	P	N	P	N	C	N
—	C	C	C	C	P	C	P	C
C	C	C	P	C	C	C	C	C
C	C	C	P	C	C	C	C	C
C	C	C	P	N	C	N	C	N
C	C	P	C	N	C	P	N	P
C	C	P	C	P	C	C	C	N
C	C	N	C	N	C	P	C	N
C	C	C	P	C	C	C	C	C
—	C	P	C	P	P	P	P	P
C	C	C	C	C	C	C	C	C
—	N	C	P	C	N	C	N	C
C	C	C	P	N	C	N	C	N
—	N	P	P	P	P	N	P	P
—	C	C	C	P	P	P	C	P

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

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

Postemergent
GLU	GLY	OXY	PAR*	SET	24D*
C	C	N	P	C	N
C	C	P	C	N	P
C	C	P	C	C	N
C	C²	P	P	N	C
C	C	N	C	C	N
C	C	P	C	N	C
C	C²	P	P	N	C
—	C²	N	P	C	N
P	P	P	P	N	N
C	C	C	P	N	C
C	C	C	P	N	C
C	P	C	N	N	N
C	N	P	P	N	N
C	C	C	C	N	N
C	C	C	C	N	N
C	C	P	C	N	N
C	C	C	C	N	N
—	C	N	P	C	C
C	C	C	P	N	N
C	C	P	P	P	N
C	C	P	C	N	N

C	C	P	C	C	N
C	C	C	C	N	C
C	C	N	N	N	N
C	C	C	N	N	C
C	C	C	C	N	C
C	C	N	C	C	P

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

ANNUAL WEEDS

barnyardgrass

chickweed, common

crabgrasses

fleabane, hairy

foxtails

goosefoot, nettleleaf

horseweed

junglerice

knotweed, common

lambsquarters, common

lettuce, prickly

mallow, little

nettle, burning

nightshades

pigweeds

puncturevine

purslane, common

sandburs

sowthistles

sprangletops

thistle, Russian

PERENNIAL SEEDLINGS

bermudagrass

bindweed, field

dallisgrass

dandelion

dock, curly

johnsongrass

PERENNIAL PLANTS

bermudagrass

bindweed, field

blackberries

dallisgrass

dandelion

dock, curly

johnsongrass

nutsedge, yellow

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

Chemical Legend

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

FLM = flumioxazin (Chateau)

GLU = glufosinate (Rely)

GLY = glyphosate (Roundup)

ISO = isoxaben (Gallery)

NAP = napropamide (Devrinol)

NOR = norflurazon (Solicam)

ORY = oryzalin (Surflan)

OXY = oxyfluorfen (GoalTender)

PAR = paraquat* (Gramoxone Inteon)

PEN = pendimethalin (Prowl H2O)

SET = sethoxydim (Poast)

SIM = simazine (Princep)

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 Resistance to glyphosate is appearing.

PUBLICATION

UC IPM Pest Management Guidelines: Almond
UC ANR Publication 3431
Weeds
A. Shrestha, Kearney Agricultural Center, Parlier
J. H. Connell, UC Cooperative Extension, Butte County
Acknowledgment for contributions to Weeds:
T. S. Prather, Department of Plant, Soil, and Entomological Sciences (PSES), University of Idaho

Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2009 The Regents of the University of California. All rights reserved.

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