crop-chem-docs/corpus/epa_ppls/7969-374.md

# Zidua SC Herbicide

- EPA Reg No: **7969-374**
- Registrant: BASF AGRICULTURAL SOLUTIONS US, LLC
- Signal word: Caution
- Active ingredients: Pyroxasulfone (41.46%)
- Label accepted: 2025-03-18
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/007969-00374-20250318.pdf

---
March 18, 2025
SENT BY EMAIL
Craig D. Kleppe
craig.kleppe@basf.com
BASF AGRICULTURAL SOLUTIONS US LLC
Subject: Labeling Notification per Pesticide Registration Notice (PRN) 98-10 - Adding Alternate Brand
Name
Product Name: Zidua SC Herbicide
Admin Number: 7969-374
EPA Receipt Date: 01/17/2025
Action Case Number: 00642321
Dear Craig D. Kleppe:
The U.S. Environmental Protection Agency is in receipt of your application for notification under Pesticide
Registration Notice 98-10 for the above referenced product. The EPA has conducted a review of this request
for its applicability under PRN 98-10 and finds that the action requested falls within the scope of PRN 98-10.
The labeling submitted with this application has been stamped "Notification" and will be placed in our records.
The alternate brand name: Vermeso Herbicide has been added to the registration. Our records have been
updated accordingly.
Should you wish to add/retain a reference to your company’s website on your label, then please be aware that
the website becomes labeling under the Federal Insecticide, Fungicide, and Rodenticide Act and is subject to
review by the EPA. If the website is false or misleading, the product will be considered to be misbranded and
sale or distribution of the product is unlawful under FIFRA section 12(a)(1)(E). 40 CFR § 156.10(a)(5) lists
examples of statements the EPA may consider false or misleading. In addition, regardless of whether a
website is referenced on your product’s label, claims made on the website may not substantially differ from
those claims approved through the registration process. Therefore, should the EPA find or if it is brought to
our attention that a website contains statements or claims substantially differing from statements or claims
made in connection with obtaining a FIFRA section 3 registration, the website will be referred to the EPA’s
Office of Enforcement and Compliance Assurance.
 If you have questions, please contact Rebecca Lasko via email at lasko.rebecca@epa.gov.
Sincerely,
Heather McFarley, PM 24, FHB, RD
Office of Pesticide Programs
for

Pyroxasulfone Group 15 Herbicide
A selective residual herbicide for use in agricultural crops
Active Ingredient:
pyroxasulfone: 3-[[[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)- 
1H-pyrazol-4-yl]methyl]sulfonyl]-4,5-dihydro-5,5-dimethylisoxazole . . . . . . . . . . 41 .46%
Other Ingr
edients: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 .54%
T
otal: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100 .00%
Contains 4 .17 pounds of pyroxasulfone per gallon formulated as a water-based 
suspension concentrate
EPA Reg. No. 7969-374 EPA Est. No.
KEEP OUT OF REACH OF CHILDREN
CAUTION/PRECAUCION
Si usted no entiende la etiqueta, busque a alguien para que se la explique a usted en 
detalle . (If you do not understand the label, find someone to explain it to you in detail .)
See full label for complete First Aid, Precautionary Statements, Directions For Use, 
Conditions of Sale and Warranty, and state-specific crop and/or use site restrictions
 .
In case of an emergency endangering life or property involving this product, 
call day or night 1-800-832-HELP (4357).
Shake container well before use.
Net Contents:
BASF Corporation 
26 Davis Drive, Research Triangle Park, NC 27709
Alternate brand names: VermesoTM, VermesoTM Herbicide
7969-374
03/18/2025

2
Precautionary Statements
Hazards to Humans and Domestic Animals
CAUTION. Harmful if swallowed . W ash thoroughly with 
soap and water after handling and before eating, drinking, 
chewing gum, using tobacco, or using the toilet .
Personal Protective Equipment (PPE)
Applicators and other handlers must wear:
• Lo
ng-sleeved shirt and long pants
• Ch
emical-resistant gloves made of any waterproof 
 ma
terial for example barrier laminate, butyl rubber 
≥ 14 mils, nitrile rubber ≥ 14 mils, neoprene rubber 
≥ 14 mils, na
tural rubber ≥ 14 mils, polyethylene, 
 po
lyvinyl chloride ≥ 14 mils, or viton ≥ 14 mils
• Sh
oes plus socks
For aerial application, mixers and loaders must also wear a 
minimum of a NIOSH approved filtering face piece respira-
tor with any N filter (TC-84A)
 . Y
ou can also use other 
NIOSH approved particulate respirators that offer more 
protection, including a half face or full face respirator with 
any filter or a powered air purifying respirator with an 
HE 
 fil
ter . For
 more information about these options, see 
ww
w .ep
a .gov
/pesticide-respirators .
Fol
low manufacturer’s instructions for cleaning/maintaining 
PPE . I
f no such instructions exist for washables, use deter-
gent and hot water . K
eep and wash PPE separately from 
other laundry . R
emove and wash contaminated clothing 
before reuse . D
iscard clothing and other absorbent materi-
als that have been drenched or heavily contaminated with 
this product’s concentrate
 . D
O NOT reuse them .
Engineering Controls
When handlers use closed systems or enclosed cabs that 
meet the requirements listed in the Worker Protection 
Standards (WPS) for agricultural pesticides 
[40 CFR 170
 .24
0(d)(4-6)], the handler PPE requirements 
may be reduced or modified as specified in the WPS .
USER SAFETY RECOMMENDATIONS
Users should:
• Re
move clothing/PPE immediately if pesticide gets 
inside . T
hen wash thoroughly and put on clean 
clothing .
• Re
move PPE immediately after handling this product . 
Wa
sh the outside of gloves before removing . A
s soon 
as possible, wash thoroughly and change into clean 
 c
lothing .
Environmental Hazards
DO NOT apply directly to water, to areas where surface 
water is present, or to intertidal areas below the mean high 
water mark
 . 
DO NOT contaminate water when disposing 
of equipment washwater or rinsate .
Dr
ift and runoff may be hazardous to aquatic organisms in 
water adjacent to treated areas .
Groundwater Advisory
This chemical has properties and characteristics associat -
ed with chemicals detected in groundwater . T
his chemical 
may leach into groundwater if used in areas where soils 
are permeable, particularly where the water table is 
shallow
 .
FIRST AID
If swallowed
• Ca
ll a poison control center or doctor immediately for treatment advice .
• Ha ve person sip a glass of water if able to swallow .
• DO N OT induce vomiting unless told to do so by the poison control center or doctor .
• DO N
OT give anything by mouth to an unconscious person .
If o
n skin
• Ta
ke off contaminated clothing .
• Ri
nse skin immediately with plenty of water for 15 to 20 minutes .
• Ca
ll a poison control center or doctor for treatment advice .
If i
n eyes
• Ho
ld eye open and rinse slowly and gently with water for 15 to 20 minutes .
• Re
move contact lenses, if present, after first 5 minutes; then continue rinsing .
• Ca
ll a poison control center or doctor for treatment advice .
If
 inhaled
• Mo
ve person to fresh air .
• If p
erson is not breathing, call 911 or an ambulance; then give artificial respiration, preferably by 
mouth to mouth if possible .
• Ca
ll a poison control center or doctor for further treatment advice .
HOTLINE NUMBER
Have the product container or label with you when calling a poison control center or doctor or going for treatment . 
Y
ou may also contact BASF Corporation for emergency medical treatment information at 1-800-832-HELP (4357) .

3
Surface Water Advisory
DO NOT apply directly to water, to areas where surface 
water is present, or to intertidal areas below the mean high 
water mark
 . D
rift and runoff may be hazardous to aquatic 
organisms in water adjacent to treated areas . 
DO NOT 
 co
ntaminate water when disposing of equipment washwa-
ter or rinsate . T
his product may impact surface water 
quality due to runoff or rainwater . T
his is especially true for 
poorly draining soils and soils with shallow groundwater . 
T
his product is classified as having a high potential for 
reaching surface water via runoff for several months or 
more after application
 . A l
evel, well-maintained vegetative 
buffer strip between areas to which this product is applied 
and surface water features including ponds, streams, and 
springs will reduce potential loading of pyroxasulfone and 
its degradation product, [5-(difluoromethoxy)-1-
 me
thyl-3-
(trifluoromethyl)-1H-pyrazol-4-yl]methanesulfonic acid (M1), 
from runoff water and sediment
 . R
unoff of this product will 
be reduced by avoiding application when rainfall is forecast 
to occur within 48 hours
 .
Po
int-source Contamination. To prevent point-source 
contamination, DO NOT mix or load this or any other pes-
ticide within 50 feet of wells (including abandoned wells 
and drainage wells, sinkholes, perennial or intermittent 
streams and rivers, and natural or impounded lakes and 
reservoirs)
 . T
his setback does not apply to properly 
capped or plugged abandoned wells and does not apply 
to impervious pad or dike mixing/loading areas as 
described below
 . Mi
xing, loading, rinsing, or washing oper-
ations performed within 50 feet of a well are allowed only 
when conducted on an impervious pad constructed to 
withstand the weight of the heaviest load that may be on 
or move across the pad
 . T
he pad must be self-contained 
to prevent surface water flow over or from the pad . T
he 
pad capacity must be maintained at 110% of that of the 
largest pesticide container or application equipment used 
on the pad and have sufficient capacity to contain all prod-
uct spills, equipment or container leaks, equipment 
washwater, and rainwater that may fall on the pad
 . T
he 
containment capacity does not apply to vehicles delivering 
pesticide shipments to the mixing/loading site
 . S
tates may 
have in effect additional requirements regarding wellhead 
setbacks and operational containment
 .
Ca
re must be taken when using this product to prevent 
back-siphoning into wells, spills, or improper disposal of 
excess pesticide, spray mixes, or rinsates
 . C
heck valves or 
anti-siphoning devices must be used on all mixing 
 e
quipment . 
Endangered Species Protection 
Requirements
This product may have effects on federally listed threat-
ened or endangered plant species or their critical habitat
 . 
W
hen using this product, you must follow the measures 
contained in the Endangered Species Protection Bulletin 
for the county or parish in which you are applying the 
 pe
sticide . T
o determine whether your county or parish 
has a Bulletin, and to obtain that Bulletin, consult 
http://www .ep a .go v/espp/, or call 1-844-447-3813 no more 
than 6 months before using this product . Appl
icators must 
use Bulletins that are in effect in the month in which the 
pesticide will be applied
 . N
ew Bulletins will be available 
from the above sources 6 months before their effective 
dates
 .
Directions For Use
It is a violation of federal law to use this product in a man-
ner inconsistent with its labeling
 .
Re
ad the entire label . Us
e strictly in accordance with pre-
cautionary statements and directions and with applicable 
state and federal regulations
 .
DO N
OT apply this product in a way that will contact 
workers or other persons, either directly or through drift . 
O
nly protected handlers may be in the area during applica-
tion . F
or any requirements specific to your state or tribe, 
consult the agency responsible for pesticide regulation .
Fa
ilure to follow directions and precautions on this label 
may result in crop injury, poor weed control, and/or illegal 
residues
 .
AGRICULTURAL USE REQUIREMENTS
Use this product only in accordance with its labeling and 
with the Worker Protection Standard, 40 CFR Part 170
 . 
T
his standard contains requirements for the protection 
of agricultural workers on farms, forests, nurseries, 
greenhouses, and handlers of agricultural pesticides
 . It
 
contains requirements for training, decontamination, 
notification, and emergency assistance
 . I
t also contains 
specific instructions and exceptions pertaining to the 
statements on this label about personal protective 
equipment (PPE) and restricted-entry interval
 . T
he 
requirements in this box only apply to uses of this prod-
uct that are covered by the Worker Protection Standard .
DO N
OT enter or allow worker entry into treated areas 
during the restricted-entry interval (REI) of 12 hours .
PP
E required for early entry to treated areas that is per-
mitted under the Worker Protection Standard and that 
involves contact with anything that has been treated, 
including plants, soil or water, is:
• 
 C
overalls
• Ch
emical-resistant gloves made of any waterproof 
material for example barrier laminate, butyl rubber 
≥ 14 mils, nitrile rubber ≥ 14 mils, neoprene rubber 
≥ 14 mils, 
 na
tural rubber ≥ 14 mils, polyethylene, 
 po
lyvinyl chloride ≥ 14 mils, or viton ≥ 14 mils
• Sh
oes plus socks

4
STORAGE AND DISPOSAL
DO NOT contaminate water, food or feed by storage or 
disposal . Op
en dumping is prohibited .
Pesticide Storage
DO NOT use or store near heat or open flame . S tore in 
original container, in well-ventilated area separately from 
fertilizer, feed, or foodstuffs
 . A
void cross-contamination 
with other pesticides .
Pesticide Disposal
Wastes resulting from the use of this product may be 
disposed of on-site or at an approved waste disposal 
facility
 . I
mproper disposal of excess pesticide, spray mix, 
or rinsate is a violation of federal law . I
f these wastes 
cannot be disposed of according to label instructions, 
contact the state agency responsible for pesticide regu-
lation or the Hazardous Waste representative at the 
nearest EPA Regional Office for guidance
 .
Container Handling
Nonrefillable [Plastic] Container. DO NOT reuse or 
refill this container . T
riple rinse or pressure rinse contain-
er (or equivalent) promptly after emptying; then offer for 
recycling, if available, or reconditioning, if appropriate, or 
puncture and dispose of in a sanitary landfill, or by incin-
eration, or by other procedures approved by state and 
local authorities
 .
Trip
le rinse containers small enough to shake 
(capacity ≤ 5 gallons) as follows: Empty the remain -
ing contents into application equipment or a mix tank 
and drain for 10 seconds after the flow begins to drip
 . F
ill 
the container 1/4 full with water and recap . S
hake for 
10 seconds . P
our rinsate into application equipment or a 
mix tank, or store rinsate for later use or disposal . D
rain 
for 10 seconds after the flow begins to drip . R
epeat this 
procedure two more times . 
T
riple rinse containers too large to shake 
 (c
apacity > 5 gallons) as follows: Empty the remain -
ing contents into application equipment or a mix tank . 
Fi
ll the container 1/4 full with water . R
eplace and tighten 
closures . T
ip container on its side and roll it back and 
forth, ensuring at least one complete revolution, for 
30 seconds
 . S
tand the container on its end and tip it 
back and forth several times . T
urn the container over 
onto its other end and tip it back and forth several times . 
E
mpty the rinsate into application equipment or a mix 
tank, or store rinsate for later use or disposal . R
epeat 
this procedure two more times .
Pr
essure rinse as follows: Empty the remaining con -
tents into application equipment or mix tank and 
continue to drain for 10 seconds after the flow begins to 
drip
 . H
old container upside down over application 
equipment or mix tank, or collect rinsate for later use or 
disposal
 . I
nsert pressure rinsing nozzle in the side of the 
container and rinse at about 40 PSI for at least 30 sec-
onds
 . D
rain for 10 seconds after the flow begins to drip .
(continued)
STORAGE AND DISPOSAL (continued)
Container Handling (continued)
Refillable [Plastic] Container. Refill this container with 
pesticide only . 
DO NOT reuse this container for any 
other purpose . T
riple rinsing the container before final 
disposal is the responsibility of the person disposing of 
the container
 . C
leaning before refilling is the responsibili-
ty of the refiller .
Trip
le rinse as follows: To clean the container before 
final disposal, empty the remaining contents from this 
container into application equipment or mix tank
 . Fi
ll the 
container about 10% full with water . A
gitate vigorously or 
recirculate water with the pump for 2 minutes . P
our or 
pump rinsate into application equipment or rinsate col -
lection system . R
epeat this rinsing procedure two more 
times .
Wh
en this container is empty, replace the cap and seal 
all openings that have been opened during use; return 
the container to the point of purchase or to a designated 
location
 . T
his container must only be refilled with a pesti-
cide product . P
rior to refilling, inspect carefully for 
damage including cracks, punctures, abrasions, worn-
out threads and closure devices
 . C
heck for leaks after 
refilling and before transport . 
DO NOT transport if this 
container is damaged or leaking . I
f the container is dam-
aged, or leaking, or obsolete and not returned to the 
point of purchase or to a designated location, triple rinse 
emptied container and offer for recycling, if available, or 
dispose of container in compliance with state and local 
regulations
 .
In Case of Emergency
In case of large-scale spill of this product, call: 
• C
HEMTREC 1-8
00-424-9300
• BA
SF Corporation 1-
800-832-HELP (4357)
In case of medical emergency regarding this product, call:
• 
 Yo
ur local doctor for immediate treatment 
• Yo
ur local poison control center (hospital) 
• BA
SF Corporation 1-
800-832-HELP (4357)
Steps to take if material is released or spilled:
• 
 Di
ke and contain the spill with inert material (sand, earth, 
etc .) an
d transfer liquid and solid diking material to sepa-
rate containers for disposal . 
• Re
move contaminated clothing and wash affected skin 
areas with soap and water . 
• Wa
sh clothing before reuse .
• Ke
ep the spill out of all sewers and open bodies of water .

5
Product Information
Zidua® SC herbicide is a selective rate-dependent resid-
ual pr
eemergence herbicide for controlling annual grass 
weeds, sedges, and annual broadleaf weeds (including 
 bio
types resistant to ACCase inhibitors, ALS inhibitors, and 
glyphosate) that infest broad bean, celery, chickpea, corn, 
cotton, dry bulb onions, fallow, leek, mint, peanut, perenni-
al cool- se
ason grasses grown for seed production, potato, 
safflower, soybean, and sunflower listed in Table 1 and 
wheat listed in Table 2
 . R
efer to Crop
-specific 
 Inf
ormation section for use directions specific to each 
labeled crop . 
P
eriods of dry weather following application of Zidua SC 
may reduce herbicidal effectiveness . Z
idua SC must be 
activated by at least 1/2 inch of rainfall or irrigation before 
weed germination and emergence
 . When
 Zidua SC is not 
activated and weeds emerge, a labeled postemergence 
herbicide or shallow cultivation may be needed to control 
weed escapes
 . Z
idua SC does not control emerged 
weeds .
He
rbicidal activity of Zidua SC may be reduced if trash on 
the soil surface from the previous crop covers more than 
25% of the application area
 . M
anage trash levels if needed 
with combine straw shredder/spreaders, earlier burndown 
of emerged weeds, or light tillage
 .
Ta
ble 1. Weeds Controlled with a Residual 
Application of Zidua ® SC herbicide in All Crops 
other than Wheat
Common Name Scientific Name
Annual Grass Weeds
Barley, hare Hordeum murinum spp . 
le
porinum
Barnyardgrass Echinochloa crus-galli
Bluegrass, annual Poa annua
Brome, downy1 Bromus tectorum
Brome, Japanese1 Bromus japonicus
Canarygrass Phalaris canariensis
Cheat1 Bromus secalinus
Crabgrass, large Digitaria sanguinalis
Crabgrass, smooth Digitaria ischaemum
Crowfootgrass Dactyloctenium aegyptium
Cupgrass, southwestern Eriochloa acuminata
Cupgrass, woolly1 Eriochloa villosa
Foxtail, giant Setaria faberi
Foxtail, green Setaria viridis
Foxtail, yellow Setaria pumila
Goosegrass Eleusine indica
(continued)
Table 1. Weeds Controlled with a Residual 
Application of Zidua ® SC herbicide in All Crops 
other than Wheat (continued)
Common Name Scientific Name
Annual Grass Weeds (continued)
Johnsongrass, seedling Sorghum halepense
Millet, Texas1 Urochloa texana
Millet, wild-proso1 Panicum miliaceum
Oat, wild1 Avena fatua
Panicum, fall Panicum dichotomiflorum
Red rice Oryza sativa
Ryegrass, Italian Lolium perenne spp . 
mu
ltiflorum
Ryegrass, rigid Lolium rigidum
Sandbur, longspine1 Cenchrus longispinus
Shattercane1 Sorghum bicolor spp . 
ar
undinaceum
Signalgrass, broadleaf Urochloa platyphylla
Sedge
Nutsedge, yellow1 Cyperus esculentus
Annual Broadleaf Weeds
Amaranth, Palmer Amaranthus palmeri
Amaranth, Powell Amaranthus powellii
Buckwheat, wild
1 Polygonum convolvulus
Carpetweed Mollugo verticillata
Chickweed, common1 Stellaria media
Fleabane, hairy1 Conyza bonariensis
Groundsel, common1 Senecio vulgaris
Henbit1 Lamium amplexicaule
Horseweed (Marestail)1 Conyza canadensis
Jimsonweed1 Datura stramonium
Kochia1 Kochia scoparia
Lambsquarters, common1 Chenopodium album
Morningglory, entireleaf1 Ipomoea hederacea
Morningglory, pitted1 Ipomoea lacunosa
Nightshade, black Solanum nigrum
Nightshade, Eastern black Solanum ptycanthum
Pigweed Amaranthus spp.
Pigweed, redroot Amaranthus retroflexus
Pigweed, smooth Amaranthus hybridus
Pigweed, tumble Amaranthus albus
(continued)

6
Table 1. Weeds Controlled with a Residual 
Application of Zidua ® SC herbicide in All Crops 
other than Wheat (continued)
Common Name Scientific Name
Annual Broadleaf Weeds (continued)
Purslane, common Portulaca oleracea
Pusley, Florida Richardia scabra
Ragweed, common1 Ambrosia artemisiifolia
Shepherd’s-purse1 Capsella bursa-pastoris
Sida, prickly (Teaweed) Sida spinosa
Velvetleaf1 Abutilon theophrasti
Waterhemp Amaranthus tuberculatus
1 Partial control or suppression only . Zidua SC may be used in tank mixes 
or sequential applications with other labeled herbicides that provide addi-
tional control of noted weeds
 .

7
Table 2. Weeds Controlled 1 or Suppressed 2 with a Residual Application of Zidua ® SC herbicide in Wheat
Common Name Scientific Name
C = Control 
(only at the maximum application rate 
per soil texture)
S = Suppression
See Crop-specific Information 
 se
ction for specific rates .
An
nual Grass Weeds
Barley, hare Hordeum murinum spp . le
porinum S
Barnyardgrass Echinochloa crus-galli S
Bluegrass, annual Poa annua C
Brome, downy Bromus tectorum S
Brome, Japanese Bromus japonicus S
Canarygrass Phalaris canariensis C
Cheat Bromus secalinus S
Foxtail, giant Setaria faberi S
Foxtail, green Setaria viridis S
Foxtail, yellow Setaria pumila S
Oats, wild Avena fatua S
Rattail fescue Vulpia myuros C
Ryegrass, Italian Lolium perenne spp . mu
ltiflorum C
Ryegrass, rigid Lolium rigidum S
Annual Broadleaf Weeds
Buckwheat, wild Polygonum convolvulus S
Carpetweed Mollugo verticillata S
Chickweed, common Stellaria media S
Flixweed Descurainia sophia S
Groundsel, common Senecio vulgaris S
Henbit Lamium amplexicaule S
Horseweed (Marestail) Conyza canadensis S
Kochia Kochia scoparia S
Lambsquarters, common Chenopodium album S
Mustard, wild Sinapis arvensis L . S
Pi
gweed spp . Am
aranthus spp . S
Ra
gweed, common Ambrosia artemisiifolia S
Shepherd’s-purse Capsella bursa-pastoris S
1 Weeds including annual bluegrass and Italian ryegrass have the ability to adapt to several different herbicide sites of action . Even though Zidua SC will 
control these species, some weed escapes are possible . Multiple herbicides with multiple different effective sites of action MUST
 be used in tank mix-
tures or sequentially to limit these weed escapes to prevent or delay the onset of herbicide-resistant weed biotypes .
2 For control of these weeds, a tank mix partner or a sequentially applied herbicide partner is needed .

8
Mode of Action
Zidua® SC herbicide acts to inhibit very long-chain fatty 
acid synthesis as a Group 15 herbicide . I
t is a root-and-
shoot growth inhibitor that controls susceptible 
germinating seedlings before or soon after they emerge 
from the soil
 .
Herbicide Resistance Management
Zidua SC is a Group 15 herbicide . An y weed population 
may contain or develop plants naturally resistant to 
Zidua SC and other Group 15 herbicides
 . We
ed species 
with resistance to Group 15 may eventually dominate the 
weed population if Group 15 herbicides are used repeat-
edly in the same field or in successive years as the primary 
method of control for targeted species
 . T
his may result in 
partial or total loss of control of those species by 
Zidua SC or other Group 15 herbicides
 .
To
 delay herbicide resistance consider:
• Av
oiding the consecutive use of Zidua SC or other 
 t
arget-site-of-action Group 15 herbicides that have a 
similar target site of action on the same weed species .
• Usi
ng tank mixes or premixes with herbicides from differ-
ent target-site-of-action groups as long as the involved 
products are all registered for the same use, have differ-
ent sites of action, and are both effective at the tank mix 
or prepack rate on the weed(s) of concern
 .
• Basi
ng herbicide use on a comprehensive IPM 
( In
tegrated Pest Management) program including cultural 
and mechanical methods .
• Mo
nitoring treated weed populations for loss of field effi-
cacy, and control of escapes with effective alternative 
herbicides or mechanical methods
 .
• Id
entify weeds present in the field through scouting and 
field history and understand their biology . T
he weed- 
co
ntrol program needs to consider all of the weeds 
present .
• Sc
out fields prior to application to identify the weed spe-
cies present and their growth stage to determine if the 
intended application will be effective
 .
• Sc
out fields after application to verify the treatment was 
effective .
• Su
spected herbicide-resistant weeds may be identified 
by these indicators:
 1 . Fa
ilure to control a weed species normally controlled 
by the herbicide at the dose applied, especially if con-
trol is achieved on adjacent weeds;
 2 . A sp
reading patch of non-controlled plants of a partic-
ular weed species; and
 3 . Su
rviving plants mixed with controlled individuals of 
the same species .
• If resistance is suspected, treat weed escapes with an 
h
erbicide with a different MOA and/or use non-chemical 
methods to remove escapes, as practical, with the goal 
of preventing further seed production
 .
• Re
port any incidence of non-performance of this product 
against a particular weed species to your local BASF 
representative
 .
• Con
tacting your local extension specialist, certified crop 
advisors, and/or manufacturer for herbicide resistance 
management and/or integrated weed management 
directions for specific crops and resistant weed biotypes
 .
Crop Response
No crop injury is expected when Zidua SC is applied 
according to label directions and under normal environ-
mental conditions
 . A
pplication to crops under stress 
because of inadequate or excess of moisture for normal 
crop development, cool and hot temperatures, sodic soils, 
poorly drained soils, hail damage, flooding, pesticide injury, 
mechanical injury, or widely fluctuating temperatures may 
result in crop injury
 .
Application Instructions
Application rates of Zidua SC may vary depending on soil 
texture
 . R
efer to Table 3 for soil texture groups used in this 
label unless a specific soil texture is mentioned . Whe
n use 
rates are in ranges, apply the low rate for soils with coarse 
texture or low organic matter; apply the high rates for fine 
soil textures, high organic matter, heavy soil surface plant 
residue, or heavy weed pressure
 .
Ta
ble 3. Soil Texture Groups
Coarse Medium Fine
Sand
Loamy sand
Sandy loam
Loam
Silt loam
Silt
Sandy clay loam
Sandy clay
Silty clay loam
Silty clay
Clay loam
Clay
Zidua SC may be used on peat soils and muck soils, 
and mineral soils with 10% or more organic matter , 
but weed control may be inconsistent and/or reduced
 . Us
e 
maximum labeled use rate allowed in the specific crop .
Use 
Table 4 to determine the corresponding amounts of 
active ingredient (pyroxasulfone) from Zidua SC product 
use rates
 .

9
Table 4. Use Rate Equivalency 
Amount of 
Zidua® SC herbicide 
(fl ozs/A)
Amount of Pyroxasulfone 
(lb ai/A)
1 .0 0 .03
3
1 .25 0 .041
1 .75 0 .05
3
2 .0 0 .06
5
2 .5 0 .081
3 .0 0 .09
8
3 .25 0 .1
06
3 .5 0 .11
4
4 .0 0 .1
30
4 .5 0 .1
47
5 .0 0 .1
59
5 .75 0 .1
87
6 .5
0 0 .213
8 .25 0 .26
6
Application Timing
Zidua SC may be applied preplant surface, preplant 
 in
corporated, preemergence, early postemergence, 
 po
stemergence-directed (layby), or in the fall . R
efer to the 
Crop-specific Information section for specific applica-
tion instructions (timings, rates, restrictions and 
precautions) by crop .
Pr
eplant Surface Application. Apply Zidua SC alone 
or in tank mix within 45 days of planting . I
f weeds are pres-
ent at the time of application, use additional weed control 
methods, for example a tank mix with an appropriate 
 po
stemergence herbicide(s), to control emerged weeds .
Pr
eplant Incorporated (PPI) Application. Incorporate 
Zidua SC into the upper (1 to 2 inches) soil surface within 
14 days of planting
 . D
eeper incorporation may increase the 
potential for crop injury and also may result in reduced 
weed control
 . Us
e appropriate equipment for uniform shal-
low incorporation, including a field cultivator, harrow, rolling 
cultivator, or finishing disc
 .
Pr
eemergence Surface Application. After planting and 
before crop emergence, apply a uniform broadcast treat-
ment to the soil surface . A
pply Zidua SC only to a uniform 
seedbed which is firm and free of clods, cracks, excess 
trash (previous crop residue), and weed growth
 . I
f weeds 
are present, apply Zidua SC in a tank mix with an appro-
priate postemergence herbicide, for example a 
glyphosate-
 c
ontaining product .
Ea
rly Postemergence Application. Zidua SC must be 
applied and activated before weed seedling emergence or 
in a tank mixture that controls emerged weeds
 . 
Zidua SC 
will not control emerged weeds . W
eeds that are already 
emerged at the time of application must be controlled with 
cultivation, tank mix or sequential application of another 
herbicide labeled for postemergence control of the target 
weeds in the crop
 .
Po
stemergence-directed (Layby) Application. 
Zidua SC must be applied as a directed spray between 
crop rows and activated before weed seedling emergence 
or in a tank mix that controls emerged weeds
 . Z
idua SC 
will not control emerged weeds . W
eeds that are already 
emerged at the time of application must be controlled with 
cultivation, tank mix or sequential application of another 
herbicide labeled for postemergence control of the target 
weeds in the crop
 .
Fal
l/Winter Application for controlling weeds germi -
nating in the fall, or winter weeds. Zidua SC may be 
broadcast surface applied in the fall or winter after crop 
harvest
 . D
O NOT apply to frozen or snow-covered soil . 
T
illage operations may be conducted before or after apply-
ing Zidua SC . I
f tillage is used following an application, 
tillage must be shallow (no more than 2-inches deep) to 
uniformly incorporate the herbicide into the upper soil 
surface
 .
Application Methods and Equipment
Zidua SC may be applied by aerial or ground application 
or by chemigation application via sprinkler or drip irrigation
 .
Th
orough spray coverage is required for optimum weed 
control and can be improved with proper nozzle and spray 
volume selection
 . Us
e and configure application equip-
ment to provide an adequate spray volume, an accurate 
and uniform distribution of spray droplets over the treated 
area
 . Adj
ust equipment to maintain continuous agitation 
during spraying with good mechanical or bypass agitation . 
Av
oid overlaps that will increase rates above the use rates 
specified in this label .
Zi
dua SC may be applied using water or sprayable fluid 
 ni
trogen fertilizer solutions as the spray carrier . 
DO NOT 
apply this product without dilution in a spray carrier . Add
i-
tionally, Zidua SC may be impregnated on and applied 
with dry bulk fertilizer
 .
Aeri
al Spray Carrier Volume. Use 3 or more gallons of 
water per acre . T
he actual minimum spray volume per acre 
is determined by the spray equipment used . Us
e adequate 
spray volume to provide accurate and uniform distribution 
of spray particles over the treated area
 .
Gr
ound Spray Carrier Volume. Use 5 or more gallons of 
water per treated acre or 15 or more gallons of sprayable 
fluid nitrogen fertilizer per treated acre for weed control 
 a
pplication .

10
Mandatory Spray Drift Management
Aerial Applications
• DO NOT release spray at a height greater than 10 ft 
a
bove the vegetative canopy, unless a greater applica-
tion height is necessary for pilot safety .
• For
 all applications, applicators are required to use a 
medium to ultra coarse spray droplet size 
(ASABE S572
 .1) .
• Th
e boom length must not exceed 65% of the wing-
span for airplanes or 75% of the rotor blade diameter 
for helicopters
 .
• Ap
plicators must use 1/2 swath displacement upwind 
at the downwind edge of the field .
• No
zzles must be oriented so the spray is directed 
toward the back of the aircraft .
• DO N
OT apply when wind speeds exceed 10 miles 
per hour at the application site .
• DO N
OT apply during temperature inversions .
Ground Applications
• Apply with the nozzle height advised by the manufac-
t
urer, but no more than 3 feet above the ground or 
crop canopy .
• For
 all applications, applicators are required to use a 
medium to ultra coarse spray droplet size 
(ASABE S572
 .1) .
• DO N
OT apply when wind speeds exceed 10 miles 
per hour at the application site .
• DO N
OT apply during temperature inversions .
Spray Drift Advisories
The applicator is responsible for avoiding off-site spray 
drift
 . B
e aware of nearby non-target sites and environmen-
tal conditions .
Importance of Droplet Size
An effective way to reduce spray drift is to apply large 
droplets
 . Us
e the largest droplets that provide target pest 
control . W
hile applying larger droplets will reduce spray 
drift, the potential for drift will be greater if applications are 
made improperly or under unfavorable environmental 
conditions
 .
Controlling Droplet Size - 
Ground Boom Volume
Volume. Increasing the spray volume so that larger drop-
lets are produced will reduce spray drift . Us
e the highest 
practical spray volume for the application . I
f a greater spray 
volume is needed, consider using a nozzle with a higher 
flow rate
 .
Pr
essure. Use the lowest spray pressure advised for the 
nozzle to produce the target spray volume and droplet 
size
 .
Spra
y Nozzle. Use a spray nozzle that is designed for the 
intended application . Con
sider using nozzles designed to 
reduce drift .
Controlling Droplet Size - 
Aircraft Adjust Nozzles
Follow nozzle manufacturers directions for setting up noz-
zles . G
enerally, to reduce fine droplets, nozzles must be 
oriented parallel with the airflow in flight .
Boom Height - Ground Boom
Use the lowest boom height that is compatible with the 
spray nozzles that will provide uniform coverage
 . F
or 
ground equipment, the boom must remain level with the 
crop and have minimal bounce
 .
Release Height - Aircraft
Higher release heights increase the potential for spray drift . 
Wh
en applying aerially to crops, DO NOT release spray at a 
height greater than 10 feet above the crop canopy, unless a 
greater application height is necessary for pilot safety
 .
Shielded Sprayers
Shielding the boom or individual nozzles can reduce spray 
drift
 . C
onsider using shielded sprayers . V
erify that the 
shields are not interfering with the uniform deposition of 
the spray on the target area
 .
Temperature and Humidity
When making applications in hot and dry conditions, use 
larger droplets to reduce effects of evaporation
 .
Temperature Inversion
Drift potential is high during a temperature inversion . T em-
perature inversions are characterized by increasing 
temperature with altitude and are common on nights with 
limited cloud cover and light to no wind
 . T
he presence of 
an inversion can be indicated by ground fog or by the 
movement of smoke from a ground source or an aircraft 
smoke generator
 . S
moke that layers and moves laterally in 
a concentrated cloud (under low wind conditions) indicates 
an inversion, while smoke that moves upward and rapidly 
dissipates indicates good vertical air mixing
 . Av
oid applica-
tions during temperature inversions .
Wind
Drift potential generally increases with wind speed . AVOID 
APPLICATIONS DURING GUSTY WIND CON
DITIONS. 
Applicators need to be familiar with local wind patterns 
and terrain that could affect spray drift
 .
Chemigation Application via Sprinkler and 
Drip Irrigation Systems
Zidua® SC herbicide may be applied as a chemigation 
treatment through sprinkler irrigation systems . Appl
y this 
product ONLY through a sprinkler irrigation system of the 
following type: center pivot, end tow, hand move, lateral 
move, side (wheel) roll, or solid set
 . 
DO NOT apply this 
product through any other type of sprinkler irrigation 
system
 .
Zi
dua SC may also be applied as a chemigation treatment 
through drip irrigation systems . Al
l chemigation precau-
tions mentioned in this label for sprinkler irrigation systems 
also apply for drip irrigation systems
 .

11
Application may be made alone or in tank mixtures with 
other herbicides on this label registered for use in specified 
sprinkler or drip irrigation systems
 . Appl
ication must be 
made within specific crop stage timings and product use 
rates given in the container label Directions For Use
 .
Uni
form distribution of Zidua® SC herbicide -treated 
 ir
rigation water is the sole responsibility of the applicator 
and is required to avoid crop injury, lack of herbicide effec-
tiveness, or illegal pesticide residue in the crop
 . I
f you have 
questions about calibration, contact State Extension Ser -
vice specialists, equipment manufacturers, or other 
experts
 .
Pr
oper calibration is the responsibility of the applicator . T
he 
system must be properly calibrated (with water only) to 
ensure the amount of Zidua SC applied corresponds to 
the specified rate
 . A
pply Zidua SC in volume minimums of 
0 .33 t
o 0 .67 i
nch of water using the lower volume for 
coarse- te
xture soils and the higher volume for fine-texture 
soils . A
pplication made in high volumes of water (more 
than 1 inch) may result in reduced weed control .
Me
ter herbicide dilution into irrigation water through the 
entire time of water application for center pivot and lateral 
move sprinkler systems
 . F
or solid-set and hand-move 
sprinkler irrigation systems and drip irrigation systems, 
apply Zidua SC through the system at the beginning of 
the set; then follow with additional water to reach volume 
minimums as listed by soil type
 . T
o increase calibration 
accuracy of injection metering equipment, dilute Zidua SC 
in a minimum of 3 parts water to 1 part Zidua SC
 . Main-
t
ain agitation in injection nurse tanks to keep a uniform 
herbicide suspension during application .
Special Restrictions for Chemigation:
1 . DO NOT a pply when wind speed favors drift beyond 
the area intended for treatment .
2 . DO
 NOT connect an irrigation system used for pesticide 
application to a public water system unless the pesticide 
label-prescribed safety devices for public water systems 
are in place
 .
3 . A pe
rson knowledgeable of the chemigation system and 
responsible for its operation, or under the supervision of 
the responsible person, shall shut the system down and 
make necessary adjustments if the need arises
 .
4 . Ta
il water (runoff water) from chemigation that contains 
Zidua SC needs be recirculated and/or contained in the 
field in a cistern or holding reservoir from the initial appli-
cation and/or used only on adjacent, approved crops for 
which Zidua SC is registered for this type of 
application
 .
5 . The
 pesticide injection pipeline must contain a function -
al, automatic, quick-closing check valve to prevent the 
flow of fluid back toward the injection pump
 . I
t must also 
contain a functional, normally closed, solenoid-operated 
valve located on the intake side of the injection pump 
and connected to the system interlock to prevent fluid 
from being withdrawn from the supply tank when the 
irrigation system is either automatically or manually shut 
down
 .
6 . Th
e sprinkler chemigation system must contain a func-
tional check valve, vacuum-relief valve, and 
low-pressure drain appropriately located on the irrigation 
pipeline to prevent water-source contamination from 
backflow
 . I
n addition, systems must use a metering 
pump, including a positive displacement injection pump 
(e
 .g . di
aphragm pump) effectively designed and con -
structed of materials that are compatible with pesticides 
and capable of being fitted with a system interlock
 .
7 . The
 sprinkler chemigation system must contain function -
al interlocking controls to automatically shut off the 
pesticide injection pump when the water pump motor 
stops, or in cases where there is no water pump, when 
the water pressure decreases to the point where pesti-
cide distribution is adversely affected
 .
8 . Th
e irrigation line or water pump must include a func-
tional pressure switch that will stop the water pump 
motor when the water pressure decreases to the point 
where pesticide distribution is adversely affected
 .
Chemigation systems connected to public 
water systems:
1 . Public water system means a system for the provision to 
t
he public of piped water for human consumption if such 
system has at least 15 service connections or regularly 
serves an average of at least 25 individuals daily at least 
60 days out of the year
 .
2 . Chem
igation systems connected to public water sys-
tems must contain a functional, reduced-pressure zone 
backflow preventer (RPZ) or the functional equivalent in 
the water supply line upstream from the point of pesti-
cide introduction
 . A
s an option to the RPZ, the water 
from the public water system needs be discharged into 
a reservoir tank prior to pesticide introduction
 . Th
ere 
shall be a complete physical break (air gap) between the 
outlet end of the fill pipe and the top or overflow rim of 
the reservoir tank of at least twice the inside diameter of 
the fill pipe
 .
3 . Al
l chemigation systems connected to public water sys-
tems must also follow restrictions listed in the preceding 
section
 .
Ground Application (Dry Bulk Fertilizer)
Zidua SC may be impregnated or coated onto dry bulk 
granular fertilizer carriers for residual soil surface (fall, pre-
plant surface, preplant incorporated) applications or for 
residual weed control from postemergence over-the-top of 
cotton applications
 . Im
pregnation or coating may be con-
ducted by in-plant bulk or on-board systems . P
erform the 
mixing operation in well-ventilated areas .
Al
l individual state regulations relating to dry bulk granular 
fertilizer blending, registration, labeling, and application are 
the responsibility of the individual and/or company selling 
the herbicide/fertilizer mixture
 .
Zi
dua SC may be impregnated on many commonly used 
dry fertilizers . 
DO NOT impregnate on ammonium nitrate, 
fertilizers containing ammonium nitrate, potassium nitrate, 
sodium nitrate, or powdered limestone
 .

12
Fertilizer application rates of at least 200 lbs to 700 lbs per 
acre of herbicide and fertilizer blend will provide adequate 
distribution or coverage of Zidua
® SC herbicide across 
the soil surface . A
pplication of impregnated fertilizer must 
be made uniformly to the soil to prevent possible crop inju-
ry and offer satisfactory weed control
 . I
mpregnated 
fertilizer spread at half rate and overlapped to obtain a full 
rate offers a more uniform distribution
 . A s
hallow (less than 
2 inches) incorporation is desirable for improved weed 
control
 . D
eeper incorporation dilutes the herbicide layer 
near the soil surface and may result in unsatisfactory weed 
 c
ontrol .
To c
alculate the herbicide rate when using dry bulk fertiliz-
er applications:
[fl ozs of Zidua SC 
 per acre X 2000] = fl ozs of Zidua SC 
for 1 ton of fertilizerpounds fertilizer per acre
To impregnate Zidua SC on bulk fertilizer, use a closed 
 ro
tary-drum mixer or other commonly used dry bulk fertil -
izer blender equipped with suitable spray equipment . Mi
x 
Zidua SC with sufficient water to form a sprayable slurry 
mixture
 . S
pray nozzles must be directed to provide uni-
form fertilizer coverage while avoiding spray contact with 
mixing equipment
 . No
nuniform impregnation can cause 
crop injury or unsatisfactory performance . Spra
y herbicide 
mixture onto fertilizer after blending has started . A
ddition 
of a suitable drying agent may be necessary if the fertilizer 
and herbicide blend is too wet for uniform application due 
to high humidity, high urea concentration, or low fertilizer 
use rate
 . S
lowly add the drying agent to the blend until a 
flowable mixture is obtained . D
rying agents are not intend-
ed for use with on-board impregnation sy
stems .
Und
er some conditions, fertilizer impregnated with 
Zidua SC may clog air tubes or deflector plates on 
 pne
umatic application systems . Mine
ral oil may be added 
to Zidua SC before blending with fertilizer to reduce plug-
ging
 . D
O NOT use drying agents when mineral oil is used . 
T
o avoid separation of Zidua SC and mineral oil mixes in 
cold temperatures, keep mixture heated or agitated before 
blending with 
 fe
rtilizer . M
ineral oil may be used with inplant 
blending stations or with on-board injection systems .
Un
iformly apply the treated fertilizer with accurately cali-
brated and proper equipment immediately after 
impregnation to avoid lump formation and spreading 
 d
ifficulties .
Ac
curate calibration of fertilizer application equipment and 
uniform fertilizer distribution is essential for satisfactory 
weed control
 .
Cleaning Spray Equipment
Clean application equipment thoroughly by using a strong 
detergent or commercial sprayer cleaner according to the 
manufacturer’s directions
 . Tr
iple rinse the equipment 
before and after applying Zidua SC .
Additives
Zidua SC is formulated to provide optimal residual pre-
emergence weed control
 . H
owever, several tank mixes 
with Zidua SC may require an adjuvant to improve burn-
down of emerged weeds
 . T
herefore, an adjuvant may be 
used with Zidua SC tank mixes that are applied fall, pre-
plant, 
 pr
eemergence, or early postemergence . F
ollow the 
adjuvant directions for the tank mix pa
rtner of Zidua SC .
Tank Mixing Information
It is the pesticide user’s responsibility to ensure that all 
products in the mixtures are registered for the intended 
use
 . Re
ad and follow the applicable restrictions and limita -
tions and directions for use on all product labels involved in 
tank mixing
 . Us
ers must follow the most re
strictive direc-
tions for use and precautionary statements of each 
product in the tank mixture
 .
Zi
dua SC may be tank mixed or applied sequentially with 
other herbicide products registered for use in any labeled 
crop found in this label for a broader spectrum of residual 
weed control and/or control of emerged weeds
 . R
efer to 
the tank mix product labels to confirm that the respective 
tank mix products are registered for use on the labeled 
crop
 . F
ollow the adjuvant directions for the tank mix part-
ner of Zidua SC . R
ead and follow tank mix product labels 
for application instructions, use restrictions and precau -
tions, and rotational cropping guidance .
Ph
ysical incompatibility, reduced weed control, or crop 
injury may result from mixing Zidua SC with other pesti -
cides, additives, or fertilizers . 
Compatibility Test for Tank Mix Products
Before mixing components, always perform a compatibility 
jar test
 .
1 . Fo
r 20 gallons per acre spray volume, use 3 .3 cu
ps 
(800 mL) of water . F
or other spray volumes, adjust rates 
accordingly . O
nly use water from the intended source at 
the source temperature .
2 . Ad
d components in the sequence indicated in the mix-
ing order using 2 teaspoons for each pound or 
1 teaspoon for each pint of label rate per acre
 .
3 . Al
ways cap the jar and invert 10 cycles between com-
ponent additions . 
4 . Wh
en the components have all been added to the jar, 
let the solution stand for 15 minutes .
5 . Ev
aluate the solution for uniformity and stability . T
he 
spray solution must not have free oil on the surface, or 
fine particles that precipitate to the bottom, or thick 
(clabbered) texture
 . I
f the spray solution is not compati-
ble, repeat the compatibility test with the addition of a 
suitable compatibility agent
 . I
f the solution is then 
 co
mpatible, use the compatibility agent as directed on 
its label . I
f the solution is still incompatible, DO NOT mix 
the ingredients in the same tank .

13
Mixing Order
Shake Zidua® SC herbicide container well before 
use. 
Maintain agitation throughout mixing and application until 
spraying is completed .
1 . W
ater - Fill tank 1/2 to 3/4 full with clean water and start 
agitation . 
2 . In
ductor - If an inductor is used, rinse it thoroughly 
after each component has been added . 
3 . Pr
oducts in PVA bags - Place any product contained 
in water-soluble PVA bags into the mixing tank . W
ait 
until all water-soluble PVA bags have fully dissolved and 
the product is evenly mixed in the spray tank before 
 c
ontinuing . 
4 . Wa
ter-soluble additives (dry and liquid fertilizers 
including ammonium sulfate or urea ammonium nitrate)
5 . Wa
ter-dispersible products (including dry flowables, 
wettable powders, suspension concentrates, or suspo -
emulsions) - Add Zidua SC at this point in the mixing 
process
 . 
6 . Wa
ter-soluble products
7 . Emu
lsifiable concentrates (including methylated seed 
oil adjuvants) 
8 . Re
maining quantity of water
If the spray mixture is allowed to settle for any period of 
time, thorough agitation is essential to resuspend the mix-
ture before spraying is resumed
 . C
ontinue agitation while 
spraying .
Use Restrictions
• Maximum use rate - R efer to Crop- s pecific 
 Inf
ormation section for maximum application use rates 
of Zidua SC in each crop and use pattern .
• Re
fer to Crop-specific Information for additional crop 
use restrictions .
• DO
 NOT contaminate irrigation ditches or water used for 
domestic purposes . 
• Ir
rigation - DO NOT use flood irrigation to apply, acti-
vate, or incorporate Zidua SC .
• Zi
dua SC is not for sale, distribution, or use in 
 Na
ssau and Suffolk counties in New York State.
• Emer
gency replanting intervals - If a labeled crop 
treated with Zidua SC is lost to crop failure (because of 
environmental factors including drought, frost, hail, etc
 .), 
t
he crop may be replanted immediately . H
owever, 
DO NOT repeat application of Zidua SC after crop fail-
ure
 . A s
equential application can be made as long as the 
maximum cu
mulative rate for the crop and soil per year 
is not exceeded .
Use Precautions
• Crop rotation intervals - Us e Table 5 to determine the 
proper interval between Zidua SC application and the 
planting of rotational crops
 . D
etermine the crop rotation 
interval for tank mix products, and use the most restric-
tive interval of all products applied
 .
Ta
ble 5. Rotational Crop Planting Intervals by 
Zidua® SC herbicide Application Rate
Crop
Zidua SC Use Rate 
(fl ozs/A)
1 .75 3 .25 5 .0 6 .5 0
Rotational Crop Interval 
(months after application)
Alfalfa 10 10 10 10
Beans, edible dry 11 11 11 11
Beans, edible-podded 
and succulent shelled 11 11 11 11
Bulb onion 2 4 4 4
Canola (Rapeseed) 12 12 15 18
Chickpea 1 1 1 2
Corn 0 0 0 0
Cotton 1 2 4 4
Flax 2 4 6 8
Garlic 0 0 4 4
Grain sorghum 6 6 10 12
Cool-season Grasses 
grown for seed* 11** 11** 18 18
Warm-season Grasses 
grown for seed 18 18 18 18
Green onion 4 6 8 12
Lentil 1 1 2 4
Peanut 1 2 4 4
Peas, edible-podded 
and succulent shelled 9 9 11 11
Peas, field 
(dry) 1 1 1 2
Potato 1 2 3 3
Rice 10 12 18 24
Safflower 1 2 3 3
Small grains 
(other than wheat) 11 11 11 18
Soybean 0 0 0 4
Sugar beet 12 12 15 15
Sugarcane 4 4 4 4
Sunflower 1 2 3 3
Sweet potato 4 4 4 9
Tobacco (grown in 
states of FL, GA, KY, 
NC, SC, TN, and VA)
9 9 12 12
Tobacco (grown in all 
other states) 18 18 18 18
(continued)

14
Table 5. Rotational Crop Planting Intervals by 
Zidua® SC herbicide Application Rate (continued)
Crop
Zidua SC Use Rate 
(fl ozs/A)
1 .75 3 .25 5 .0 6 .5 0
Rotational Crop Interval 
(months after application)
Wheat 1 1 4 6
Other Crops 18 18 18 18
 * Only when grown in states of Idaho, Oregon and Washington, for all 
other states see rotational crop intervals for “Other Crops”
 .
** An 11 month rotational crop interval only when greater than 15 inches 
of precipitation (rainfall/irrigation) has occurred from time of application 
to planting of grass grown for seed
 . If less than 15 inches of precipita-
tion has occurred, the rotational crop interval is 18 months .
Crop-specific Information
Read product information, mixing, application, weeds con -
trolled, and additive instructions in preceding sections of 
the label
 .
Broad Bean
Zidua SC may be applied preemergence to broad bean 
(dry, faba bean, fava bean) for residual preemergence 
weed control
 . Us
e Zidua SC as part of a weed control 
program in broad bean either in combination or sequential -
ly with other herbicides for a broader spectrum of weed 
control and/or control of emerged weeds
 .
Be
fore applying to broad bean, verify with your local seed 
company (supplier) the selectivity of Zidua SC on your 
variety to avoid potential injury .
Application Rate
Apply Zidua SC in broad bean at the residual rates pro-
vided in Table 6 .
Ta
ble 6. Residual Rates of Zidua SC in Broad Bean
Application 
Timing
Use Rate by Soil Texture1 
(fl ozs/A)
Coarse Medium Fine
Preemergence DO NOT 
USE 3 .25 3 .25
1 Refer to Table 3 for definition of soil-texture groups .
Application Timing
Zidua SC may only be applied in a single application .
Preemergence Surface Application
Apply Zidua SC at use rates specified in Table 6 as a 
broadcast spray to the soil surface after planting and 
before crop emergence
 .
Crop-specific Restrictions
• DO NOT ap ply more than 3 .25 fl o zs/A of Zidua SC 
(0 .10
6 lb ai/A of pyroxasulfone) in a single application .
• Maximum number of applications per year: 1
• D
O NOT apply more than 3 .25 fl o
zs/A of Zidua SC 
(0 .10
6 lb ai/A of pyroxasulfone) per year .
• D
O NOT apply Zidua SC in combination with other 
pyroxasulfone-containing products in broad bean .
• D
O NOT apply Zidua SC to emerging or emerged 
broad bean as severe crop injury will occur .
• D
O NOT apply Zidua SC to broad bean grown on 
coarse soils .
• Th
ere is no required (preharvest) interval between a pre-
emergence application of Zidua SC and the harvest of 
broad bean .
• Leg
ume vegetable forage and hay may be fed to or 
grazed by livestock .
Crop-specific Precautions
• The use of Zidua SC m ay result in temporary growth 
suppression in broad bean under stressful conditions, 
including inadequate or excessive moisture or rainfall, 
cool and hot temperatures, compacted or crusted soils, 
improper planting depth, injury from other pesticides, 
disease or other pest damage, mechanical injury, nutri-
ent imbalances, or other conditions known to cause 
plant stress
 .
Celery
Zidua SC may be applied to transplanted celery as an 
early post-transplant application for residual pre -
emergence control of listed weeds (Table 1 )
 . Us
e 
Zidua SC as part of a weed control program in celery 
either in combination or sequentially with other herbicides 
for a broader spectrum of weed control and/or control of 
emerged weeds
 . B
efore applying to celery, verify with your 
local seed company (supplier) the selectivity of Zidua SC 
on your variety to avoid potential injury
 .
Application Rate
Apply Zidua SC in transplanted celery at the residual 
rates provided in Table 7 .
Ta
ble 7. Residual Rates of Zidua SC in 
transplanted Celery
Application 
Timing
Use Rate 
(fl ozs/A)
Muck or Peaty Muck Soils 
(greater than 20% organic matter)
Early 
Post-transplant 3
 .25
Application Timing
Zidua SC may only be applied in a single application .

15
Early Post-transplant Application 
(1 to 6 days after transplanting)
Apply Zidua® SC herbicide at the use rates specified in 
Table 7 as a broadcast spray to the soil surface 1 to 
6 days after transplanting . A
pply Zidua SC only to a uni-
form transplant bed which is firm and free of clods and 
cracks
 . T
he transplant bed must be prepared to ensure 
good transplant row closure . 
Crop-specific Restrictions 
• DO NOT apply more than 3 .25 fl o zs/A of Zidua SC 
(0 .10
6 lb ai/A of pyroxasulfone) in a single application .
• Ma
ximum number of applications per year: 1
• DO N
OT apply more than 3 .25 fl o
zs/A of Zidua SC 
(0 .10
6 lb ai/A of pyroxasulfone) per year .
• 
 Th
ere is no required preharvest interval for Zidua SC 
when applied after transplanting . 
• DO N
OT apply Zidua SC seven or more days after 
transplanting . 
• On
ly apply Zidua SC to transplanted celery .
• 
 O
nly apply Zidua SC to celery grown on muck or peaty 
muck soils with greater than 20% organic matter .
Crop-specific Precautions
• The use of Zidua SC may result in temporary growth 
s
uppression, leaf burn, and/or other injury or stand 
reduction in transplanted celery under stressful condi -
tions including inadequate or excessive moisture, 
extended periods of water-saturated soil occur during 
early transplant growth and development, cool and hot 
temperatures, compacted soils, injury from other pesti -
cides, disease or other pest damage, mechanical injury, 
nutrient imbalances, or other conditions known to cause 
plant stress
 .
Chickpea
Zidua SC may be applied preplant surface or pre-
emergence to chickpea (garbanzo bean) for residual 
preemergence control of listed weeds (Table 1 )
 . Us
e 
Zidua SC as part of a weed control program in chickpea 
either in combination or sequentially with other herbicides 
for a broader spectrum of weed control and/or control of 
emerged weeds
 . B
efore applying to chickpea, verify with 
your local seed company (supplier) the selectivity of 
Zidua SC on your variety to avoid potential injury
 .
Application Rate
Apply Zidua SC in chickpea at the residual rates provided 
in Table 8
 .
Table 8. Residual Rates of Zidua SC in Chickpea
Application 
Timing
Use Rate by Soil Texture1 
(fl ozs/A)
Coarse Medium Fine
Preplant surface DO NOT 
USE 2 .5 2 .5 to 
3 .25
Pr
eemergence DO NOT 
USE 2 .5 2 .5 to 
3 .25
1 Refer to Table 3 for definition of soil-texture groups .
Application Timing
Zidua SC may only be applied in a single application .
Preplant Surface Application 
Apply Zidua SC at the use rates specified in Table 8 as a 
broadcast spray to the soil surface within 30 days of 
planting
 . 
Preemergence Surface Application
Apply Zidua SC at use rates specified in Table 8 as a 
broadcast spray to the soil surface after planting and 
before crop emergence
 . 
Crop-specific Restrictions 
• On medium soils - DO NOT a pply more than 
2 .5 fl oz
s/A of Zidua SC (0 .08 l
b ai/A of pyroxasulfone) in 
a single application .
• On fi
ne soils - DO NOT apply more than 3 .25 fl o
zs/A 
 of
 Zidua SC (0 .10
6 lb ai/A of pyroxasulfone) in a single 
application .
• Ma
ximum number of applications per year: 1
• DO N
OT apply more than 2 .5 fl oz
s/A of Zidua SC 
(0 .08 l
b ai/A of pyroxasulfone) on medium soils and more 
than 3 .25 fl o
zs/A of Zidua SC (0 .10
6 lb ai/A of 
 py
roxasulfone) on fine soils per year .
• DO
 NOT apply Zidua SC in combination with other 
 p
yroxasulfone- c
ontaining products in chickpea .
• DO
 NOT apply Zidua SC to emerging or emerged 
chickpea as severe crop injury will occur .
• DO
 NOT apply Zidua SC to chickpea grown on coarse 
soils . 
• Th
ere is no required (preharvest) interval between a pre-
plant or preemergence application of Zidua SC and the 
harvest of chickpea
 . 
• Leg
ume vegetable forage and hay may be fed to or 
grazed by li
vestock .
Corn
Zidua SC may be applied preplant surface, preplant 
incorporated, preemergence, or early postemergence to 
corn for residual preemergence control of listed weeds 
(Table 1)
 . Us
e Zidua SC as part of a weed control pro-
gram in corn either in combination or sequen ti
ally with

16
other herbicides for a broader spectrum of weed control 
and/or control of emerged weeds . C
orn in this label refers 
to field corn (grown for grain, seed, or silage), popcorn, 
and sweet corn (grown for fresh, processing, or seed)
 . 
B
efore applying to seed corn, sweet corn, or popcorn, ver-
ify with your local seed company (supplier) the selectivity of 
Zidua
® SC herbicide on your inbred line or hybrid to 
avoid potential injury .
Application Rate
Apply Zidua SC in corn at the residual rates provided in 
Table 9
 .
Ta
ble 9. Residual Rates of Zidua SC in Corn
Application 
Timing
Use Rate by Soil Texture1 
(fl ozs/A)
Coarse Medium Fine
Preplant 
surface 2
 .5
 to 4 .5 3 .25 t
o 5 .0 4 .0 t
o 6 .5
P
replant 
incorporated 2 .5
 to 4 .5 3 .25 t
o 5 .0 4 .0 t
o 6 .5
P
reemergence 2 .5
 to 4 .5 3 .25 t
o 5 .0 4 .0 t
o 6 .5
E
arly 
postemergence 1 .75 t
o 4 .5 2 .5 to 5 .0 3 .25
 to 6 .5
1 Refer to Table 3 for definition of soil-texture groups .
Application Timing
Zidua SC may be applied in a single application or in 
sequential applications
 .
Fall/Winter Application 
for controlling weeds germinating in the fall, 
or winter annual weeds
Zidua SC may be broadcast surface applied in the fall or 
winter to control winter annual weeds and other weeds 
germinating in the fall
 . Us
e on coarse, medium, or fine soils 
at rates listed for preplant surface timing . A s
equential 
preemergence or postemergence application can be 
made, but DO NOT exceed the maximum cumulative rate 
allowed by soil type per year
 . S
ee the main Application 
Timing section of this label for further application 
instructions .
Early Preplant Surface Application 
(within 15 to 45 days of planting)
Use application rates in Table 9 when making preplant 
surface applications, using the highest application rate for 
a given soil texture
 . P
replant surface applications are not 
advised on coarse soils, in areas where average annual 
rainfall (or rainfall plus irrigation) typically exceeds 40 inch-
es, or for popcorn or sweet corn
 .
Preplant Surface or Preplant Incorporated 
Application (within 14 days of planting)
Apply Zidua SC at the use rates specified in Table 9 as a 
broadcast spray to the soil surface or incorporated before 
planting on all soil types
 . 
Preemergence Surface Application
Apply Zidua SC at use rates specified in Table 9 as a 
broadcast spray to the soil surface after planting and 
before crop emergence
 . 
Early Postemergence Application
Apply Zidua SC at use rates specified in Table 9 as a 
broadcast spray to corn at spiking up to the V8 stage 
 (v
isible eighth leaf collar) .
Sequential Application
If a sequential application program of Zidua SC is used 
(e
 .g . f
all application followed by spring application, or 
sequential applications in the spring), the maximum com-
bined rate of Zidua SC that may be applied in corn per year 
is 4
 .5 fl oz
s/A (0 .14
6 lb ai/A of pyroxasulfone) on coarse soils 
or 8 .25 fl o
zs/A (0 .26
6 lb ai/A of pyroxasulfone) on all 
 me
dium-to-fine soils .
Crop-specific Restrictions
• On coarse soil - DO NOT apply more than 4 .5 fl oz s/A 
of Zidua SC (0 .14
6 lb ai/A of pyroxasulfone) in a single 
application or as a maximum cumulative amount from 
sequential applications in corn per year
 .
• On m
edium soil:
- DO N
OT apply more than 5 .0 fl oz
s/A of Zidua SC 
(0 .15
9 lb ai/A of pyroxasulfone) in a single ap
plication .
- DO N
OT apply more than a ma
ximum cumulative 
amount of 8 .25 fl o
zs/A of Zidua SC (0 .26
6 lb ai/A 
 py
roxasulfone) from sequential applications in corn per 
year .
• On fi
ne soil:
- DO N
OT apply more than 6 .5 fl oz
s/A of Zidua SC 
(0 .21
3 lb ai/A of pyroxasulfone) in a single ap
plication .
- DO N
OT apply more than a maximum cumulative 
amount of 8 .25 fl o
zs/A of Zidua SC (0 .26
6 lb ai/A 
 py
roxasulfone) from sequential applications in corn per 
year .
• Ma
ximum number of applications per year: 2 (when 
applying rates less than single application maximum rate)
• Se
parate sequential applications by at least 14 days .
• D
O NOT harvest sweet corn ears for human consump-
tion less than 37 days after application of Zidua SC .
Crop-specific Precautions
• Seeding depth - Co rn seed must be planted a mini-
mum 1-inch deep .
Cotton
[In Cotton use section, Optional text in brackets]
Zidua SC can be applied to cotton prior to weed emer-
gence for residual 
 pr
eemergence control of listed weeds 
(Table 1), by the following timing and methods: postemer-
gence-directed (layby) spray, or postemergence spreading 
of impregnated dry bulk fertilizer, or postemergence by 
chemigation
 . Us
e Zidua SC as part of a weed control

17
program in cotton either in combination or sequen tia
lly 
with other herbicides for a broader spectrum of weed con-
trol and/or control of emerged weeds . B
efore applying to 
cotton, verify with your local seed company (supplier) the 
selectivity of Zidua
® SC herbicide on your variety to 
avoid potential injury .
No c
rop injury is expected when Zidua SC is applied 
 po
stemergence-directed (layby) or when applied poste -
mergence impregnated onto dry bulk fertilizer . H
owever, 
some visual cotton response is possible when Zidua SC 
is applied under stressful conditions including inadequate 
or excessive moisture, cool or hot temperatures, compact-
ed soils, injury from other pesticides, disease or other pest 
damage, mechanical injury, nutrient imbalances, or other 
conditions known to cause plant stress
 .
Application Rate
Apply Zidua SC in cotton at the residual rates in Table 10 .
Ta
ble 10. Residual Rates of Zidua SC in Cotton
Application 
Timing
Use Rate by Soil Texture1 
(fl ozs/A)
Coarse Medium Fine
Postemergence-
directed (Layby)
2 .5
 to 3 .5 
[1
.25 to 
2.5]
2 .5
 to 3 .5 
[1
.25 to 
2.5]
2 .5
 to 3 .5
P
ostemergence 
(via impregnat -
ed dry bulk 
fertilizer)
2
 .5
 to 3 .5 
[1
.25 to 
2.5]
2 .5
 to 3 .5 
[1
.25 to 
2.5]
2 .5
 to 3 .5
P
ostemergence 
(by chemigation)
2 .5
 to 3 .5 
[1
.25 to 
2.5]
2 .5
 to 3 .5 
[1
.25 to 
2.5]
2 .5
 to 3 .5
1 Refer to Table 3 for definition of soil-texture groups .
Application Timing
Zidua SC may only be applied in a single application .
Postemergence-directed (Layby) 
Application
Apply Zidua SC at use rates specified in Table 10 as a 
 br
oadcast-directed spray between cotton rows from 5-leaf 
stage [2-leaf stage] to beginning bloom stage . T
he use of 
hooded or shielded sprayers is ad
vised when applying 
Zidua SC as postemergence-directed (layby) spray . Av
oid 
contacting cotton leaves with Zidua SC spray solution or 
injury may occur
 .
Early Postemergence Application - 
Dry Bulk Fertilizer
Apply Zidua SC at use rates specified in Table 10 as a 
broadcast spread of impregnated dry bulk fertilizer to cotton 
from 5-leaf stage [2-leaf stage] to beginning bloom stage
 . 
Ap
ply a minimum of 250 pounds of dry bulk fertilizer per acre 
to ensure sufficient broadcast coverage for effective weed 
control
 . F
urther increasing the rate of fertilizer spread per 
acre can improve soil surface coverage and weed control . 
Act
ivate Zidua SC with minimum of 0 .75 i
nch of rainfall or 
irrigation soon after fertilizer spreading .
[A
pply Zidua SC to cotton via dry bulk fertilizer only in the 
following states: Alabama, Arizona, Arkansas, California, 
Florida, Georgia, Kansas, Louisiana, Missouri, New Mexico, 
North Carolina, Oklahoma, South Carolina, Tennessee, 
Texas, 
 Mis
sissippi, Virginia .]
Se
e the Ground Application (Dry Bulk Fertilizer) section 
on this label for further information about this application .
Early Postemergence Application - 
Chemigation
Apply Zidua SC at use rates specified in Table 10 by 
chemigation to cotton from 5-leaf stage [2-leaf stage] to 
beginning bloom stage . Z
idua SC application to emerged 
cotton may result in temporary leaf burn and stunting, but a 
reduction in cotton yield is not expected
 .
Se
e the Chemigation Application via Sprinkler and 
Drip Irrigation Systems section on this label for further 
information about this application and follow the application 
instructions for chemigation through sprinkler irrigation sys-
tems
 . D
rip irrigation systems are not applicable for this use in 
cotton . 
[Apply Zidua SC
 to cotton by chemigation only in the 
green shaded areas/counties of New Mexico, Oklahoma, 
and Texas as indicated on the map below
 .
]
Crop-specific Restrictions
• DO NOT apply Zidua SC a s a preplant or preemergence 
treatment, or as a postemergence over-the-top spray 
treatment in cotton
 .
• DO
 NOT apply Zidua SC to cotton from emergence 
(at-cracking) through cotyledon stage or injury will occur .
• D
O NOT apply more than 3 .5 fl oz
s/A of Zidua SC 
(0 .11
2 lb ai/A of pyroxasulfone) in a single application .
• Ma
ximum number of applications per year: 1

18
• DO NOT apply more than 3 .5 fl oz s/A of Zidua® SC 
herbicide (0 .11
2 lb ai/A of pyroxasulfone) per year .
• D
O NOT apply Zidua SC to wet leaves (from recent 
rainfall or irrigation, dew) where the treated dry bulk fertil-
izer is retained on cotton leaves .
• D
O NOT apply Zidua SC impregnated onto ammonium 
nitrate, potassium nitrate, sodium nitrate or powdered 
limestone dry bulk fertilizers
 .
• DO
 NOT apply the following with Zidua SC when mak -
ing early postemergence application by chemigation: 
adjuvants, liquid fertilizers, water quality and pH buffering 
agents, and other herbicides, insecticides, or fungicides
 .
• Th
ere is no required (preharvest) interval between a 
 po
stemergence application of Zidua SC and the harvest 
of cotton .
• Co
tton gin byproducts may be fed to livestock .
Crop-specific Precautions
• The use of Zidua SC may result in temporary growth 
s
uppression in cotton if extreme conditions of high rain -
fall and extended periods of water-saturated soil occur 
during cotton germination or early seedling development
 .
• Zid
ua SC applied early postemergence can cause cot-
ton injury . Und
er stressful conditions (including 
inadequate or excessive moisture, cool or hot tempera-
tures, compacted soils, injury from other pesticides, 
disease or other pest damage, mechanical injury, nutri-
ent imbalances, or other conditions known to cause 
plant stress), Zidua SC injury will be in intensified
 .
Fallow
Zidua SC may be used as a residual treatment to control 
listed weeds at any time of the year during the 
 fa
llow peri-
od following crop harvest and before the following crop is 
planted (see paragraph below pertaining to rotational crop 
planting intervals)
 . 
Application Rate and Timing
Apply Zidua SC as a broadcast spray at 1 .75 t o 6 .5 fl oz s/A . 
Se
quential applications may be made with a minimum of 
30 days between applications . B
est product performance is 
obtained when weeds are not emerged before ap
plication .
Sp
ecific rotational crop planting intervals must be 
observed between an application of Zidua SC and plant -
ing of the following crops (see Table 5 for rotational crop 
planting intervals) .
Crop-specific Restrictions
• DO NOT apply more than 6 .5 fl oz s/A of Zidua SC 
(0 .21
3 lb ai/A pyroxasulfone) in a single application .
• D
O NOT apply more than a maximum cumulative 
amount of 8 .25 fl o
zs/A of Zidua SC (0 .26
6 lb ai/A of 
 py
roxasulfone) from sequential applications per year .
• Maximum number of applications per year: 3 (when 
a
pplying rates less than single application maximum rate)
• Se
parate sequential applications by at least 30 days .
Leek
Zidua SC may be applied to leek (transplanted only) as a 
postemergence application for residual preemergence 
weed control
 . Us
e Zidua SC as part of a weed control 
program in leek either in combination or sequentially with 
other herbicides for a broader spectrum of weed control 
and/or control of emerged weeds
 .
Application Rate
Apply Zidua SC in leek at the residual rates provided in 
Table 11
 .
Ta
ble 11. Residual Rates of Zidua SC in Leek
Application 
Timing
Use Rate by Soil Texture 
(fl ozs/A)
Coarse Medium 
to Fine
Muck 
(greater than 
20% organic 
matter)
Postemergence DO NOT 
USE
2 .0 to 
2 .75 2 .75
Application Method and Timing
Zidua SC may only be applied in a single application .
Postemergence Application
Apply Zidua SC at the use rates specified in Table 11 as 
a broadcast spray to leek that have 2 to 6 true leaves .
Crop-specific Restrictions
• D O NOT apply more than 2 .75 fl o zs/A of Zidua SC 
(0 .09 l
b ai/A of pyroxasulfone) in a single application .
• Ma
ximum number of applications per year: 1
• D
O NOT apply more than 2 .75 fl o
zs/A of Zidua SC 
(0 .09 l
b ai/A of pyroxasulfone) per year .
• D
O NOT apply Zidua SC within 60 days of harvest of 
leek .
• D
O NOT apply Zidua SC to directed-seeded leek .
Crop-specific Precautions
• C rop response - The use of Zidua SC may result in 
temporary growth suppression, leaf burn, and/or other 
injury or stand reduction to leek under stressful condi-
tions including inadequate or excessive moisture, 
extended periods of water-saturated soil occur during 
early transplant growth and development, cool and hot 
temperatures, compacted soils, injury from other pesti -
cides, disease or other pest damage, mechanical injury, 
nutrient imbalances, or other conditions known to cause 
plant stress
 .

19
Mint* (Peppermint and Spearmint)
* Mint (peppermint and spearmint tops) includes peppermint and spearmint 
harvested for fresh mint leaves or for stems and leaves processed into 
mint oil
 . Peppermint and spearmint tops hereafter referred to as mint .
For use only in Idaho, Indiana, Michigan, Montana, 
Oregon, Utah, Washington, and Wisconsin.
Zidua
® SC herbicide may be applied to dormant estab-
lished mint for residual preemergence control of listed 
weeds (Table 1 ) . Us
e Zidua SC as part of a weed control 
program in mint either in combination or sequentially with 
other herbicides for a broader spectrum of weed control 
and/or control of emerged weeds
 .
Application Rate and Timing
Zidua SC may only be applied in a single application . 
A
pply Zidua SC at 3 .0 fl oz
s/A (on medium and fine tex-
ture soils only) as a broadcast spray to dormant 
established mint before target-weed germination
 . 
Crop-specific Restrictions 
• DO NOT apply more than 3 .0 fl oz s/A of Zidua SC 
(0 .09
8 lb  ai/A of pyroxasulfone) in a single application .
• Ma
ximum number of applications per year: 1
• DO N
OT apply more than 3 .0 fl oz
s/A of Zidua SC 
(0 .09
8 lb ai/A of pyroxasulfone) per year .
• DO N
OT apply Zidua SC to mint in the first year of 
growth and establishment . 
• DO N
OT apply Zidua SC to mint that has broken dor -
mancy . A
pplication to mint that is near dormancy break 
can result in crop injury . R
isk of crop injury increases the 
closer application is to mint dormancy break .
• DO N
OT apply Zidua SC to mint stands that have been 
weakened by age, disease, cold weather, excessive 
moisture, or other factors that reduce crop vigor
 . M
int 
growing under stress is more susceptible to herbicide 
damage
 .
• DO N
OT apply Zidua SC to mint grown on soils with 
less than 1% organic matter .
• DO N
OT apply Zidua SC to mint grown on coarse soils .
• 
 Th
ere is no required (preharvest) interval between a dor-
mant application of Zidua SC and the harvest of mint .
• DO N
OT use roots from Zidua SC -treated mint for 
human consumption . Ro
ots treated with Zidua SC can 
be used for root propagation .
Crop-specific Precautions 
• After Zidua SC application, temporary crop injury may 
b
e observed in the growing season as mint breaks dor-
mancy and begins to grow . 
• 
 Th
e use of Zidua SC may result in growth suppression 
of mint if extreme conditions of high rainfall, high winds, 
and/or extended periods of water-saturated soil occur 
right before or soon after mint breaks dormancy
 .
Onions, Dry Bulb
Zidua SC may be applied to dry bulb onions (direct seed-
ed and transplanted) as a postemergence application for 
residual preemergence weed control
 . Us
e Zidua SC as 
part of a weed control program in dry bulb onions either in 
combination or sequentially with other herbicides for a 
broader spectrum of weed control and/or control of 
emerged weeds
 .
Application Rate
Apply Zidua SC in dry bulb onions at the residual rates 
provided in Table 12 .
Ta
ble 12. Residual Rates of Zidua SC in 
Dry Bulb Onions
Application 
Timing
Use Rate by Soil Texture 
(fl ozs/A)
Coarse Medium 
to Fine
Muck 
(greater than 
20% organic 
matter)
Postemergence DO NOT 
USE
2 .0 to 
2 .75 2 .75
Application Method and Timing
Zidua SC may only be applied in a single application .
Postemergence Application
Apply Zidua SC at the use rates specified in Table 12 as 
a broadcast spray to dry bulb onions that have 2 to 6 true 
leaves
 .
St
ate-specific Use Instructions for use only in Idaho, 
Oregon, and Washington. 
Apply Zidua SC postemergence in dry bulb onion for 
residual weed control
 . A
pply Zidua SC at 2 .0 to 
2 .75 fl o
zs/A on coarse soils . A
void application to soils with 
less than 0 .5% o
rganic matter and/or pH greater than 
7 .5 be
cause unacceptable crop injury may occur .
Crop-specific Restrictions
• D O NOT apply more than 2 .75 fl o zs/A of Zidua SC 
(0 .09 l
b ai/A of pyroxasulfone) in a single application .
• Ma
ximum number of applications per year: 1
• D
O NOT apply more than 2 .75 fl o
zs/A of Zidua SC 
(0 .09 l
b ai/A of pyroxasulfone) per year .
• D
O NOT apply Zidua SC within 60 days of harvest of 
dry bulb onions .

20
Crop-specific Precautions
• C rop response - The use of Zidua® SC herbicide 
may result in temporary growth suppression, leaf burn, 
and/or other injury or stand reduction to dry bulb onions 
under stressful conditions including inadequate or exces -
sive moisture, extended periods of water-saturated soil 
during early transplant growth and development, cool 
and hot temperatures, compacted soils, injury from other 
pesticides, disease or other pest damage, mechanical 
injury, nutrient imbalances, or other conditions known to 
cause plant stress
 .
Peanut
Zidua SC may be applied early postemergence to peanut 
for residual preemergence control of listed weeds (Table 1 )
 . 
Use Z
idua SC as part of a weed control program in peanut 
either in combination or sequen tia
lly with other herbicides 
for a broader spectrum of weed control and/or control of 
emerged weeds
 . B
efore applying to peanut, verify with your 
local seed company (supplier) the selectivity of Zidua SC 
on your variety to avoid potential injury
 .
Application Rate
Apply Zidua SC in peanut at the residual rates provided in 
Table 13
 .
Ta
ble 13. Residual Rates of Zidua SC in Peanut
Application 
Timing
Use Rate by Soil Texture1 
(fl ozs/A)
Coarse Medium Fine
Early 
postemergence 2
 .5
 to 3 .5
2 .5
 to 3 .5
2 .5
 to 3 .5
1 Refer to Table 3 for definition of soil-texture groups .
Application Timing
Zidua SC may be applied in a single application or in 
sequential applications
 .
Early Postemergence Application
Apply Zidua SC at use rates specified in Table 13 as a 
broadcast spray to peanut from “at-cracking” stage to first 
true leaf stage through beginning of pod development 
stage
 . Z
idua SC applications to emerged peanut may 
result in temporary leaf burn and stunting, but a reduction 
in peanut yield is unexpected
 . T
ank mixes of Zidua SC 
with other crop protection products or adjuvants may sig-
nificantly enhance this effect . D
epending upon growing 
conditions, recovery from this injury begins immediately 
but may take several weeks for the injury to dissipate 
entirely
 .
Ad
juvants may be applied with Zidua SC when making 
early postemergence applications .
Sequential Applications
If a sequential application program of Zidua SC is used 
(e
 .g . c
onsecutive postemergence applications), the maxi-
mum combined rate of Zidua SC that may be applied per 
year is 8 .25 fl ozs/A (0 .26 6 lb ai/A of pyroxasulfone) on all 
soils .
St
ate-specific use in Texas in areas west of 
 I
nterstate 35. Apply Zidua SC early postemergence at 
2 .5 fl oz
s/A . Us
e of Zidua SC may result in growth sup-
pression if heavy rainfall or irrigation (> 2 inches) occur 
after application
 . If
 a sequential application program of 
Zidua SC is used (e .g . c
onsecutive postemergence appli-
cations), the maximum combined rate of Zidua SC that 
may be applied in peanut per year is 5
 .0 fl oz
s/A on all 
soils . S
eparate sequential applications by at least 21 days .
Crop-specific Restrictions
• DO NOT apply more than 3 .5 fl oz s/A of Zidua SC 
(0 .11
2 lb ai/A of pyroxasulfone) in a single application .
• D
O NOT apply more than a maximum cumulative amount 
of 8 .25 fl o
zs/A of Zidua SC (0 .26
6 lb ai/A of py
roxasulfone) 
from sequential applications in peanut per year .
• Ma
ximum number of applications per year: 3 (when 
applying rates less than single application maximum rate)
• Se
parate sequential applications by at least 14 days .
• Th
ere is no required (preharvest) interval between an 
early postemergence application of Zidua SC and the 
harvest of peanut
 . 
Crop-specific Precautions
• Zidua SC applied early pos temergence (at-cracking 
through first leaf stage) may result in temporary growth 
suppression in peanut if extreme conditions of high rainfall 
and extended periods of water-saturated soil occur during 
peanut germination or early seedling development
 .
Perennial Cool-season Grasses 
Grown for Seed Production
For use in Oregon and Washington, but only in areas 
west of the Cascade Mountains in both states.
[Alternate text: For use only in Oregon and 
Washington.]
Zidua SC may be applied to established (defined as plant-
ed in fall or spring which has gone through a first grass seed 
harvest or spring-planted grass that have developed at least 
8-tillers) stands of perennial cool-season grasses (including 
fine fescue, orchardgrass, perennial ryegrass, and tall fes-
cue) grown for seed production for residual preemergence 
control of listed weeds (Table 1 )
 . Us
e Zidua SC as part of a 
weed control program in perennial cool- se
ason grasses 
grown for seed production either in combination or sequen-
tially with other herbicides for a broader spectrum of weed 
control and/or control of emerged weeds
 . B
efore applying 
to perennial cool-season grass grown for seed production, 
verify with your local seed company (supplier), university 
extension specialist (e
 .g ., we
ed scientist, county agent, etc .),
 
or BASF representative the selectivity of Zidua SC on your 
variety to avoid potential injury
 .

21
Application Rate
Apply Zidua® SC herbicide in perennial cool-season 
grasses grown for seed production at the residual rates 
provided in Table 14.
Table 14. Residual Rates of Zidua SC in Perennial 
Cool-season Grasses Grown for Seed Production
Application 
Timing
Use Rate by Soil Texture1 
(fl ozs/A)
Coarse Medium Fine
Established 
Stands 3
 .0 3 .0 3 .0
1 Refer to Table 3 for definition of soil-texture groups .
Application Timing
Zidua SC may only be applied in a single application .
Fall Application in Carbon-Planting of 
Grass Seed
Apply Zidua SC at 1 .5 to 3 .0 fl oz s/A as a broadcast spray 
to soil surface immediately after grass seed has been 
planted using standard carbon-planting practices (i
 .e ., a
cti-
vated carbon applied at minimum 300 lbs/acre in minimum 
one inch band over grass seed row)
 . A
pply Zidua SC 
before target weed germination .
Application to Established Stands
Apply Zidua SC at the use rate specified in Table 14 as a 
broadcast spray to the soil surface in postharvest grass 
during regrowth at the beginning of significant fall rains or 
in winter by January 31, or as a fall application to 
spring-planted grass crops that have developed at least 
8-tillers
 . A
pply Zidua SC before ta
rget- we
ed germination .
Crop-specific Restrictions
• DO NOT apply more than 3 .0 fl oz s/A of Zidua SC 
(0 .09
8 lb  ai/A of pyroxasulfone) in a single application .
• Ma
ximum number of applications per year: 1
• DO N
OT apply more than 3 .0 fl oz
s/A of Zidua SC 
(0 .09
8 lb ai/A of pyroxasulfone) per year .
• DO N
OT apply Zidua SC in combination with other 
 py
roxasulfone-containing products in perennial 
 co
ol-season grasses grown for seed production .
• Pr
eharvest Interval (PHI) for seed of perennial grasses 
- 60 days 
• Pr
egrazing Interval (PGI) to livestock for 
Zidua SC -treated grass forage and hay - 60 days
Crop-specific Precautions
• Application made in periods of cold temperatures that 
t
emporarily limit normal crop growth or in extended cold 
temperature periods that initiate winter dormancy in 
grass crops may result in injury
 .
Potato
Zidua SC may be applied preemergence to potato for 
residual preemergence control of listed weeds ( Table 1 )
 . 
Use Z
idua SC as part of a weed control program in po
tato 
either in combination or sequentially with other herbicides 
for a broader spectrum of weed control and/or control of 
emerged weeds
 . B
efore applying to potato, verify with your 
local seed company (supplier) the selectivity of Zidua SC 
on your variety to avoid potential injury
 .
Application Rate
Apply Zidua SC in potato at the residual rates provided in 
Table 15
 .
Ta
ble 15. Residual Rates of Zidua SC in Potato
Application 
Timing
Use Rate by Soil Texture1 
(fl ozs/A)
Coarse Medium Fine
Preemergence 2 .5 2 .5 to 3 .25
2 .5 to 3 .25
1 Refer to Table 3 for definition of soil-texture groups .
Application Timing
Zidua SC may only be applied in a single application .
Preemergence Surface Application
Apply Zidua SC at use rates specified in Table 15 as a 
broadcast spray to the soil surface after planting or drag 
off, but before crop emergence
 . W
here “drag off” is prac-
ticed, DO NOT apply Zidua SC until the “drag off” 
process is complete and there is a minimum of 2 inches of 
soil covering the vegetative portion of the potato plants, or 
Zidua SC may be applied after hilling but prior to potato or 
weed emergence, or Zidua SC may be applied where 
potato hills are harrowed and re-hilled and sprayed, but 
application must be prior to potato and weed emergence
 . 
T
here must be 2 inches of soil covering the seed piece 
and/or sprout/ ve
getation . C
are must be exercised so that 
“drag off” implements do not injure the plants . E
fficacy will 
be reduced if later cultural practices expose untreated soil . 
A
pply Zidua SC only to a uniform seedbed which is firm 
and free of clods and cracks . T
he seedbed must be pre-
pared to ensure good seed piece row closure and soil 
coverage of the seed pieces
 .
St
ate-specific Use Instructions for Preemergence 
Surface Application in Idaho, Oregon, and 
Washington. 
Apply Zidua SC preemergence at 2
 .5 to 3 .25 fl o
zs/A on 
coarse soils [Alternate text: 2.5 to 4.0 fl ozs/A on coarse 
soils], and at 3 .25 t
o 4 .0 fl oz
s/A on medium soils and fine 
soils . A
void application to soils with less than 0 .5% o
rganic 
matter and/or pH greater than 7 .5 be
cause unacceptable 
crop injury may occur . F
ollow all other application instruc-
tions and restrictions for preemergence surface 
applications of Zidua SC in potato
 .

22
Crop-specific Restrictions
• On coarse soils - DO NOT a pply more than 2 .5 fl  ozs/A 
of Zidua® SC herbicide (0 .08 l b ai/A of pyroxasulfone) 
in a single application (excluding Idaho, Oregon, and 
Washington) .
 - In I
daho, Oregon, and Wash in
gton, DO NOT apply 
more than 3 .25 
[4.0] fl ozs/A (0 .10
6 [0.130] lb ai/A of 
pyroxasulfone) on coarse soils in a single application .
• On a
ll soils other than coarse - DO NOT apply more 
than 3 .25 fl o
zs/A of Zidua SC (0 .10
6 lb ai/A of 
 py
roxasulfone) in a single application (excluding Idaho, 
Oregon, and Washington) .
 - In I
daho, Oregon, and Washington, DO NOT apply 
more than 4 .0 fl oz
s/A (0 .13
0 lb ai/A of pyroxasulfone) 
on medium or fine soils in a single application .
• Ma
ximum number of applications per year: 1
• DO N
OT apply more than 4 .0 fl oz
s/A of Zidua SC 
(0 .13
0 lb ai/A of pyroxasulfone) per year .
• DO N
OT apply Zidua SC prior to planting potato seed 
pieces . 
• DO N
OT apply Zidua SC to emerging or emerged pota-
to as severe crop injury will occur .
• 
 Th
ere is no required (preharvest) interval between a pre-
emergence application of Zidua SC and the harvest of 
potato
 . 
Crop-specific Precautions
• The use of Zidua SC may result in temporary growth 
s
uppression in potato under stressful conditions, includ -
ing inadequate or excessive moisture or rainfall, cool and 
hot temperatures, compacted or crusted soils, improper 
planting depth, injury from other pesticides, disease or 
other pest damage, mechanical injury, nutrient imbalanc -
es, or other conditions known to cause plant stress
 .
Safflower
Zidua SC may be applied preemergence to safflower for 
residual preemergence weed control
 . Us
e Zidua SC as 
part of a weed control program in safflower either in com-
bination or sequentially with other herbicides for a broader 
spectrum of weed control and/or control of emerged 
weeds
 .
Be
fore applying to safflower, verify with your local seed 
company (supplier), university extension specialist (e .g ., 
w
eed scientist, county agent, etc .), o
r BASF representative 
the selectivity of Zidua SC on your hybrid/variety to avoid 
potential injury
 .
Application Rate
Apply Zidua SC in safflower at the residual rates provided 
in Table 16 .
Table 16. Residual Rates of Zidua SC in Safflower
Application 
Timing
Use Rate by Soil Texture1 
(fl ozs/A)
Coarse Medium Fine
Preemergence DO NOT 
USE
1 .75 t
o 
2 .5
1 .75 t
o 
2 .5
1 Refer to Table 3 for definition of soil-texture groups .
Application Timing
Zidua SC may only be applied in a single application .
Preemergence Surface Application
Apply Zidua SC at use rates specified in Table 16 as a 
broadcast spray to the soil surface after planting and 
before crop emergence
 .
Crop-specific Restrictions
• D O NOT apply more than 2 .5 fl oz s/A of Zidua SC 
(0 .08 l
b ai/A of pyroxasulfone) in a single application .
• Ma
ximum number of applications per year: 1
• D
O NOT apply more than 2 .5 fl oz
s/A of Zidua SC 
(0 .08 l
b ai/A of pyroxasulfone) per year .
• D
O NOT apply Zidua SC preplant or preplant incorpo-
rated to safflower .
• D
O NOT apply Zidua SC to safflower at cracking or 
cotyledon stage .
• 
 Th
ere is no required (preharvest) interval between a pre-
emergence application of Zidua SC and safflower 
harvest .
Crop-specific Precautions
• Safflower seed quality - P lant high quality seed .
• S
eedbed preparation - The seedbed MUST be pre-
pared to ensure good seed row closure and soil 
coverage of the seed
 .
• 
 Th
e use of Zidua SC may result in temporary growth 
suppression or leaf burn in safflower under stressful con-
ditions including inadequate or excessive soil moisture or 
rainfall, cool and hot temperatures, compacted or crust-
ed soils, improper planting depth, injury from other 
pesticides, disease or other pest damage, mechanical 
injury, nutrient imbalances, or other conditions known to 
cause plant stress
 .
• 
 I
f Zidua SC is tank mixed with another herbicide other 
than glyphosate or a graminicide, use a lower rate within 
the Zidua SC rate range for the application timing and 
soil texture (as specified in Table 16)
 .
Soybean
Zidua SC may be applied preplant surface, preplant 
incorporated, preemergence, early postemergence, or in 
the fall to soybean for residual preemergence control of 
listed weeds (Table 1)
 . Us
e Zidua SC as part of a weed 
control program in soybean either in combination or

23
sequen ti
ally with other herbicides for a broader spectrum 
of weed control and/or control of emerged weeds . B
efore 
applying to soybean, verify with your local seed company 
(supplier) the selectivity of Zidua ® SC herbicide on your 
variety to avoid potential injury .
Application Rate
Apply Zidua SC in soybean at the residual rates in 
Table 17
 .
Ta
ble 17. Residual Rates of Zidua SC in Soybean
Application 
Timing
Use Rate by Soil Texture1 
(fl ozs/A)
Coarse Medium Fine
Preplant 
Surface 2
 .5
 to 3 .5 3 .25 t
o 5 .0 4 .0 to 5 .75
P
replant 
Incorporated 2 .5
 to 3 .5 3 .25 t
o 5 .0 4 .0 to 5 .75
P
reemergence 2 .5
 to 3 .5 3 .25 t
o 5 .0 4 .0 to 5 .75
E
arly 
Postemergence 1 .75 t
o 3 .5 2 .5 to 5 .0 3 .25 t
o 5 .75
1 Refer to Table 3 for definition of soil-texture groups .
Application Timing
Zidua SC may be applied in a single application or in 
sequential applications
 .
Fall/Winter Application 
for controlling weeds germinating in the fall, 
or winter annual weeds
Zidua SC may be broadcast surface applied in the fall or 
winter to control winter annual weeds and other weeds 
germinating in the fall
 . Us
e on coarse, medium, or fine soils 
at rates listed for the preplant surface timing . S
equential 
preemergence and/or postemergence applications can be 
made, but DO NOT exceed the maximum cumulative rate 
allowed by soil type per year
 . S
ee the main Application 
Timings section of this label for further application 
instructions .
Early Preplant Surface Application 
(within 15 to 45 days of planting)
Use application rates in Table 17 when making preplant 
surface applications, using the highest application rate for a 
given soil texture
 . P
replant surface applications are not 
advised on coarse soils or in areas where average annual 
rainfall (or rainfall plus irrigation) typically exceeds 40 inches
 . 
Preplant Surface or Preplant Incorporated 
Application (within 14 days of planting)
Apply Zidua SC at the use rates specified in Table 17 as 
a broadcast spray to the soil surface or incorporated 
before planting on all soil types
 . 
Preemergence Surface Application
Apply Zidua SC at use rates specified in Table 17 as a 
broadcast spray to the soil surface after planting and 
before crop emergence
 . 
Early Postemergence Application
Apply Zidua SC at use rates specified in Table 17 as a 
postemergence broadcast spray to soybean from emer-
gence (cracking stage) to sixth-trifoliate leaf stage
 . 
Z
idua SC applications to emerged soybeans may result in 
temporary leaf burn and stunting, but a reduction in soy-
bean yield is unexpected
 . T
ank mixes of Zidua SC with 
other crop protection products or adjuvants may signifi-
cantly enhance this effect . D
epending upon growing 
conditions, recovery from this injury begins immediately 
but may take several weeks for the injury to dissipate 
entirely
 .
Sequential Application
If a sequential application program of Zidua SC is used 
(e
 .g . f
all application followed by spring application, or 
sequential applications in the spring), the maximum com -
bined rate of Zidua SC that may be applied per year is 
3
 .5 fl oz
s/A (0 .11
2 lb ai/A of pyroxasulfone) on coarse soils 
or 5 .75 fl o
zs/A (0 .18
6 lb ai/A of pyroxasulfone) on 
 me
dium-to-fine soils .
Crop-specific Restrictions
• On coarse soil - DO NOT apply more than 3 .5 fl oz s/A 
of Zidua SC (0 .11
2 lb ai/A of pyroxasulfone) in a single 
application or as a maximum cumulative amount from 
sequential applications in soybean per year
 .
• On m
edium soil:
- DO N
OT apply more than 5 .0 fl oz
s/A of Zidua SC 
(0 .15
9 lb ai/A of pyroxasulfone) in a single ap
plication .
- DO N
OT apply more than a maximum cumulative 
amount of 5 .75 fl o
zs/A of Zidua SC (0 .18
6 lb ai/A 
 py
roxasulfone) from sequential applications in soybean 
per year .
• On fi
ne soil - DO NOT apply more than 5 .75 fl o
zs/A of 
Zidua SC (0 .18
6 lb ai/A of pyroxasulfone) in a single 
application or as a maximum cumulative amount from 
sequential applications in soybean per year
 .
• Ma
ximum number of applications per year: 2 (when 
applying rates less than single application maximum rate)
• Se
parate sequential applications by at least 14 days .
• Th
ere is no required (preharvest) interval between a 
 pr
eplant, preemergence, or early postemergence 
 a
pplication of Zidua SC and the harvest of soybean 
grain . 
Crop-specific Precautions
 • Seeding depth - So ybean seed must be planted a 
minimum 1-inch deep .
• Th
e use of Zidua SC may result in temporary growth 
suppression in soybean if extreme conditions of high 
rainfall and extended periods of water-saturated soil 
occur during soybean germination or early seedling 
development
 .

24
Sunflower
Zidua® SC herbicide may be applied preplant surface, 
preemergence, or early postemergence to sunflower for 
residual preemergence control of listed weeds ( Table 1 ) . 
Use 
Zidua SC as part of a weed control program in sun-
flower either in combination or sequen ti
ally with other 
herbicides for a broader spectrum of weed control and/or 
control of emerged weeds
 . B
efore applying to sunflower, 
verify with your local seed company (supplier), university 
extension specialist (e
 .g . w
eed scientist, county agent, 
etc .), o
r BASF representative the selectivity of Zidua SC 
on your hybrid/ va
riety to avoid potential injury .
Application Rate
Apply Zidua SC in sunflower at the residual rates provided 
in Table 18
 .
Ta
ble 18. Residual Rates of Zidua SC in Sunflower
Application 
Timing
Use Rate by Soil Texture1 
(fl ozs/A)
Coarse Medium Fine
Preplant 
surface 1
 .75 t
o 2 .5 2 .5 to 5 .0 5 .0 t
o 6 .5
P
reemergence 1 .75 t
o 2 .5 2 .5 to 5 .0 5 .0 t
o 6 .5
E
arly 
postemergence 1 .75 t
o 2 .5 1 .75 t
o 3 .25
1 .75 t
o 3 .25
1 Refer to Table 3 for definition of soil-texture groups .
Application Timing
Zidua SC may be applied in a single application or in 
sequential applications
 .
Fall/Winter Application 
for controlling weeds germinating in the fall, 
or winter annual weeds.
Zidua SC may be broadcast surface applied in the fall or 
winter to control winter annual weeds and other weeds 
germinating in the fall
 . Us
e on coarse, medium, or fine soils 
at rates listed for the preplant surface timing . S
equential 
preemergence and/or postemergence applications can be 
made, but DO NOT exceed the maximum cumulative rate 
allowed by soil type per year
 . S
ee the main Application 
Timings section of this label for further application 
instructions .
Early Preplant Surface Application 
(within 15 to 45 days of planting) 
Use application rates in Table 18 when making preplant 
surface applications, using the highest application rate 
within the rate range for a given soil texture
 . P
replant sur-
face applications are not advised on coarse soils or in 
areas where average annual rainfall (or rainfall plus irriga-
tion) typically exceeds 40 inches
 .
Preplant Surface Application 
(within 14 days of planting)
Apply Zidua SC at the use rates specified in Table 18 as 
a broadcast spray to the soil surface before planting on all 
soil types
 .
Preemergence Surface Application
Apply Zidua SC at use rates specified in Table 18 as a 
broadcast spray to the soil surface after planting and 
before crop emergence
 .
Early Postemergence Application
Apply Zidua SC at use rates specified in Table 18 as a 
broadcast spray to sunflower from first true leaf (leaf at 
least 1
 .5 in
ches long, V1 stage) through eight leaf stage 
(V8) . Z
idua SC applications to emerged sunflower may 
result in temporary leaf burn and stunting, but a reduction 
in sunflower yield is unexpected
 .
Ad
juvants may be applied with Zidua SC when making 
early postemergence applications .
Sequential Applications
If a sequential application program of Zidua SC is used 
(e
 .g . f
all application followed by spring application, or 
sequential spring applications including preplant surface or 
preemergence application followed by postemergence 
application or consecutive postemergence applications), 
the maximum combined rate of Zidua SC that may be 
applied per year is 2
 .5 fl oz
s/A (0 .08 l
b ai/A of 
 py
roxasulfone) on coarse soils and 8 .25 fl o
zs/A 
(0 .26
6 lb ai/A of pyroxasulfone) on medium-to-fine soils .
Crop-specific Restrictions 
• On coarse soil - DO NOT apply more than 2 .5 fl oz s/A 
of Zidua SC (0 .08 l
b ai/A of pyroxasulfone) in a single 
applica ti
on or as a maximum cumulative amount from 
sequential applications in sunflower per year .
• On a
ll soils other than coarse:
- DO N
OT apply more than 6 .5 fl oz
s/A of Zidua SC 
(0 .21
3 lb ai/A of pyroxasulfone) in a single application .
- DO N
OT apply more than a maximum cumulative 
amount of 8 .25 fl o
zs/A of Zidua SC (0 .26
6 lb ai/A 
pyroxasulfone) from sequential applications in sunflow-
er per year .
• Ma
ximum number of applications per year: 3 (when 
applying rates less than single application maximum rate)
• Se
parate sequential applications by at least 14 days .
• D
O NOT apply Zidua SC preplant incorporated to 
sunflower .
• D
O NOT apply Zidua SC to sunflower at cracking or 
cotyledon stage .
• D
O NOT apply a tank mix of Zidua SC and Beyond ® 
 h
erbicide on Clearfield ® sunflower hybrids/varieties .
• Th
ere is no required (preharvest) interval between a pre-
plant and preemergence application of Zidua SC and 
sunflower harvest
 .

25
• DO NOT apply Zidua ® SC herbicide postemergence 
less than 60 days before harvest of sunflower seed .
Crop-specific Precautions
• Sunflower seed quality - P lant high quality seed .
• S
eedbed preparation - The seedbed MUST be pre-
pared to ensure good seed row closure and soil 
coverage of the seed .
• Th
e use of Zidua SC may result in temporary growth 
suppression or leaf burn in sunflower under stressful 
conditions including inadequate or excessive soil mois -
ture or rainfall, cool and hot temperatures, compacted or 
crusted soils, improper planting depth, injury from other 
pesticides, disease or other pest damage, mechanical 
injury, nutrient imbalances, or other conditions known to 
cause plant stress
 .
• I
f Zidua SC is tank mixed with another herbicide other 
than glyphosate or a graminicide, use a lower rate within 
the Zidua SC rate range for the application timing and 
soil texture (as specified in Table 18)
 .
Wheat
Zidua SC may be applied preplant surface, pre-
emergence, delayed preemergence, or early 
postemergence in fall-seeded or spring-seeded wheat for 
residual preemergence control or suppression of listed 
weeds (Table 2 ) and suppression of other listed weeds 
(Table 1 )
 . Us
e Zidua SC as part of a weed control pro-
gram in wheat either in combination or sequentially with 
other herbicides for a broader spectrum of weed control 
and/or control of emerged weeds
 .
Crop Response
Zidua SC applied preplant surface or preemergence can 
cause wheat injury
 . Und
er stressful conditions (including 
inadequate or excessive moisture, cool or hot tempera-
tures, compacted soils, injury from other pesticides, 
disease or other pest damage, mechanical injury, nutrient 
imbalances, low soil pH induced aluminum toxicity, or 
other conditions known to cause plant stress), Zidua SC 
injury will be intensified
 .
No c
rop injury is expected when Zidua SC is applied 
delayed pr
eemergence or early postemergence . Ho
wever, 
some visual wheat response is possible when Zidua SC is 
applied to wheat under stressful conditions including inad -
equate or excessive moisture, cool or hot temperatures, 
compacted soils, injury from other pesticides, disease or 
other pest damage, mechanical injury, nutrient imbalanc -
es, or other conditions known to cause plant stress
 .
Wh
eat response is most often visible as stunting and/or 
discoloration of leaf tissue (e .g . c
hlorosis), but in its most 
severe form can result in stand loss and yield reduction . 
T
he greatest potential for wheat response occurs when 
Zidua SC concentrates in the crop row . U
nacceptable 
wheat response may be caused by uneven application, 
soil clods or disturbances, an open/cracked seed furrow 
that allows herbicide to directly contact the seed, or a 
deep seed furrow that allows herbicide concentration after 
a rain/irrigation event during wheat germination
 . 
C
ertain wheat varieties can be more sensitive to 
Zidua SC . B
efore applying to wheat, verify sensitivity with 
your local seed company (supplier), university extension 
specialist (e
 .g . w
heat breeder, weed scientist, county 
agent, etc .),
 or BASF representative .
Application Rate
Apply Zidua SC in wheat at the residual rates in Table 19 .
Ta
ble 19. Residual Rates of Zidua SC in Wheat
Application 
Timing
Use Rate by Soil Texture1 
(fl ozs/A)
Coarse Medium Fine
Preplant surface 
or 
Preemergence
1 .0 t
o 2 .0 1 .75 t
o 2 .5 1 .75 t
o 3 .0
De
layed 
preemergence
1 .25 t
o 
1 .75 1 .75 t
o 2 .5 1 .75 t
o 
3 .25
Ea
rly 
postemergence 1 .75 t
o 4 .0 1 .75 t
o 4 .0 1 .75 t
o 4 .0
1 Refer to Table 3 for definition of soil-texture groups .
Application Timing
Zidua SC may be applied in a single application or in 
sequential applications relative to the growth stage of 
wheat
 .
Preplant Surface Application
Apply Zidua SC at the use rates specified in Table 19 as 
a broadcast spray to the soil surface no more than 14 days 
before planting on all soil types
 . S
oil disturbance after 
application from planters/drills may result in herbicide 
incorporation that can result in unacceptable crop injury, or 
displacement of Zidua SC that can result in inconsistent 
weed control
 . S
ee State-specific Use Instructions for 
applications in Idaho, Montana, Oregon, and Washington .
Preemergence Surface Application
Apply Zidua SC at the use rates specified in Table 19 
after planting but before wheat spiking as a broadcast 
spray to the soil surface with uniform seedbed that is firm 
and free of clods
 . E
nsure good seed row closure and soil 
coverage to avoid contact with Zidua SC . A
s the interval 
from planting to application increases, the potential for 
crop injury decreases
 . S
ee State-specific Use 
 Ins
tructions for applications in Idaho, Montana, Oregon, 
and Washington . 
Delayed Preemergence Surface Application
Apply Zidua SC at the use rates specified in Table 19 as 
a broadcast spray to the soil surface following wheat plant-
ing when 80% of germinated wheat seeds have a shoot at 
least 1/2-inch long until wheat 
 sp
iking .

26
Early Postemergence Application
Apply Zidua® SC herbicide at the use rates specified in 
Table 19 as a broadcast spray to wheat at spiking up to 
the 4th-tiller growth stage . 
Zidua SC will only suppress or 
control labeled weeds that germinate after the early post -
em
ergence application and rainfall/irrigation activation . 
Appl
y Zidua SC as early as possible after wheat emer-
gence to prevent weed emer
gence .
Sequential Application
Zidua SC may be applied as a sequential or split applica -
tion program where a preplant, preemergence, or delayed 
 pr
eemergence application is followed by an early 
 pos
temergence application or where multiple early 
 pos
temergence applications are made . D
O NOT apply 
more than a maximum cumulative amount of 4 .0 fl oz
s/A 
(0 .13
3 lb ai/A of pyroxasulfone) per year . 
S
tate-specific Use Instructions for Preplant and 
Preemergence Applications in Idaho, Montana, 
Oregon, and Washington. Apply Zidua SC preplant 
surface or preemergence in fall-seeded winter wheat for 
residual weed control
 . A
pply Zidua SC only to a uniform 
seedbed that is firm and free of clods, cracks, excess 
trash (previous crop residue), and weed growth
 . T
he seed-
bed MUST be prepared to ensure good seed row closure 
and soil coverage of the seed . O
pen furrows or poor fur-
row closure can result in crop injury . Us
e high quality seed . 
P
lant seed at least 1-inch deep, but not greater than 
1 .5-i
nches deep to avoid crop injury . A
void planting seed 
into loose, powdery soil because unacceptable crop injury 
may result if soil settles and final planting depth is less than 
1-inch
 . A
pply Zidua SC preplant surface or preemergence 
at 1 .75 t
o 3 .25 fl o
zs/A on medium soils and at 2 .0 to 
3 .25 fl o
zs/A on fine soils . A
void application to soils with 
less than 2% organic matter and/or pH greater than 7 .5 
be
cause unacceptable crop injury may occur . F
ollow all 
other application instructions and restrictions and limita -
tions for preplant and preemergence applications of 
Zidua SC in wheat
 .
St
ate-specific Use Restrictions: DO NOT apply on 
spring wheat . 
DO NOT apply on coarse soils .
Crop-specific Restrictions
• DO NOT apply more than 4 .0 fl oz s/A of Zidua SC 
(0 .13
3 lb ai/A of pyroxasulfone) in a single application or 
as a maximum cumulative amount of from sequential 
applications in wheat per year
 .
• Ma
ximum number of applications per year: 2 (when 
applying rates less than single application maximum rate)
• Separate sequential applications by at least 14 days .
• D
O NOT apply Zidua SC to durum wheat .
• D
O NOT seed wheat deeper than 1 .5 in
ches after a 
 pre
plant application or before a preemergence or 
delayed preemergence application .
• D
O NOT apply Zidua SC to flooded fields or saturated 
soils .
• D
O NOT apply preemergence if 1/4 inch or more rain is 
expected within 48 hours after application . 
• D
O NOT irrigate fields after a preemergence or delayed 
preemergence application until wheat spiking .
• D
O NOT apply preplant, preemergence, or delayed 
 pre
emergence to broadcast-seeded wheat .
• D
O NOT apply Zidua SC preplant incorporated in 
wheat .
• Wh
eat forage and hay can be fed or grazed 7 or more 
days after application . 
Crop-specific Precautions
• A pply Zidua SC only to a uniform seedbed that is firm 
and free of clods, cracks, excess trash (previous crop 
residue), and weed growth
 . T
he seedbed MUST be pre-
pared to ensure good seed row closure and soil 
coverage of the seed
 . O
pen furrows or poor furrow clo-
sure can result in crop injury . Us
e high quality seed . P
lant 
seed at least 3/
4-inch deep to avoid crop injury .
• Th
e use of Zidua SC in wheat may result in temporary 
or sustained growth suppression and chlorosis if high 
 ra
infall or irrigation leads to extended periods of water- 
sa
turated soil during early seedling development . T
o 
reduce crop response, avoid applying Zidua SC if a long 
period of rain is expected before wheat emergence
 .

27
Conditions of Sale and Warranty
The Directions For Use of this product reflect the 
 op
inion of experts based on field use and tests . T
he 
 di
rections are believed to be reliable and must be 
followed carefully . H
owever, it is impossible to eliminate 
all risks inherently associated with the use of this 
product . Cr
op injury, ineffectiveness or other unintended 
consequences may result because of such factors as 
weather conditions, presence of other materials, or use 
of the product in a manner inconsistent with its labeling, 
all of which are beyond the control of BASF 
CORPORATION (“BASF”) or the Seller
 . T
o the extent 
consistent with applicable law, all such risks shall be 
assumed by the Buyer
 .
BA
SF warrants that this product conforms to the 
chemical description on the label and is reasonably fit for 
the 
 pu
rposes referred to in the Directions For Use , 
subject to the inherent risks, referred to above .
TO T
HE EXTENT CONSISTENT WITH APPLICABLE 
LAW, BASF MAKES NO OTHER EXPRESS OR 
IMPLIED WARRANTY OF FITNESS OR 
 ME
RCHANTABILITY OR ANY OTHER EXPRESS OR 
IMPLIED WARRANTY.
TO THE EXTENT CONSISTENT WITH APPLICABLE 
LAW, BUYER’S EXCLUSIVE REMEDY AND BASF’S 
EXCLUSIVE LIABILITY, WHETHER IN CONTRACT, 
TORT, NEGLIGENCE, STRICT LIABILITY, OR 
 OT
HERWISE, SHALL BE LIMITED TO REPAYMENT 
OF THE PURCHASE PRICE OF THE PRODUCT.
TO THE EXTENT CONSISTENT WITH APPLICABLE 
LAW, BASF AND THE SELLER DISCLAIM ANY 
 LI
ABILITY FOR CONSEQUENTIAL, EXEMPLARY, 
SPECIAL OR INDIRECT DAMAGES RESULTING 
FROM THE USE OR HANDLING OF THIS 
PRODUCT.
BASF and the Seller offer this product, and the Buyer 
and User accept it, subject to the foregoing Conditions 
of Sale and Warranty which may be varied only by 
 ag
reement in writing signed by a duly authorized 
representative of BASF . 1108
Note to PM/reviewer: Making the product more restric -
ti
ve than Federally accepted, incorporating the optional 
statement “Not for Use in California” may be included on 
the container label for any use, weed, or crop as deter
-
mi
ned to be necessary to secure CA-DPR registration .
[O
ptional text in brackets]
© 2025 BASF Corporation
All rights reserved .
007
969-00374 .20
250114 .NV
A 2025-04-0489-0017
Supersedes: NVA 2024-04-0489-0130
BASF Corporation
26 Davis Drive
Research Triangle Park, NC 27709
Beyond, Clearfield , and Zidua are registered trademarks 
of BASF.
Vermeso is a trademark of BASF.
The symbol is a registered trademark of Kumiai 
Chemical Industry Co., Ltd.
Beyond
® herbicide (imazamox), EPA Reg . N o . 2 41-441