crop-chem-docs/corpus/epa_ppls/100-439.md

# AATREX 80W HERBICIDE

- EPA Reg No: **100-439**
- Registrant: SYNGENTA CROP PROTECTION, LLC
- Signal word: Caution
- Active ingredients: Atrazine (80%)
- Label accepted: 1994-03-23
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000100-00439-19940323.pdf

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PM - 1 L1 
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 
Thomas J. Parshley 
CIBA~GEIGY CORPORATION 
P. O. Box 18300 
Greensboro. NC 27419 
WASHINGTON. D.C. 20460 
OFFICE OF 
PAE\lENTIOH. PESTICIDES AND 
TOXIC SUBSTANCES 
Subject: Label Amendment Submission of 11/19/93 in Response to PR Notice 93-7 
EPA Reg. No. 100-439 
AATREX 80W 
Dear Registrant: 
The labeling cited above and submitted in connection with registration under the Federal 
Insecticide. Fungicide. and Rodenticide Act (FIFRA). as amended. is accepted subject [0 the 
comments reflected on the enclosed sheet. A copy of your proposed labeling stamped 
• ACCEPTED WITH COMMENTS· is enclosed. 
WHAT THIS ACCEPTANCE MEANS: 
Based on your certification. the Agency has accepted the labeling changes that are 
necessary to comply with the Worker Protection Standard (WPS) labeling requirements of 40 
CFR part 156. subpart K. described in PR Notices 93-7 and 93-11. Any other labeling changes 
submitted in connection with this amendment application but not directly related to compliance 
with the WPS have not been reviewed or accepted by the Agency. If you wish to make such 
changes. you must submit a separate amendment application proposing them. If your product 
is currently suspended. 'he acceptance of this labeling amendment does not affect the suspension 
In any way. 
WHAT YOU NEED TO DO NEXT: 
By the next label printirig make an the specified changes to your labeling. Send to EPA 
one (1) copy of the final printed labeling: 
• BEFORE selling or distributing any product bearing the final printed labeling 
AND 
• WITHIN one year from date of this acceptance . 
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Submit the final primed labeling via the U.S. Postal Service to: 
Document Processing Desk (FIN-LABEL) 
OffIce of Pesticide' Programs (7505C) 
U.S. Environmental Protection Agency 
401 M Street, SW 
Washington. D.C. 20460-0001 
Hand or courier deliveries of tlnal printed labeling may be made to: 
Attachment 
Document Processing Desk (FIN-LABEL) 
Office of Pesticide Programs 
Room 266A. Crystal Mall 2 
1921 Jeffer5(\n Davis Highway 
Arlington. V A 22202 
" 
Sinc?\. 
'Ji ·JO~"IyCh~f 
~gi ratiun Support Branch 
,\egist tion Division (7505W) 
"

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Highlighted Copy 
PIPS 
BOOKLET LABEL FOR 
5 AND 25 POUNDS 
AND SAMPLE LABEL 
RESTRICTED USE PESTICIDE 
(GROUND AND SURFACE WATER CONCERNS) 
FOR RETAIL SALE TO AND USE ONLY BY CERTIFIED 
APPLICATORS OR PERSONS UNDER THEIR DIRECT 
SUP~RVISION AND ONLY FOR THOSE USES 
COVERED BY THE CERTIFIED APPLICATOR'S CERTIFICATION. 
THIS PRODUCT IS A RESTRICTED-USE HERBICIDE 
DUE TO GROUND AND SURFACE WATER CONCERNS. USERS MUST 
READ AND FOLLOW ALL PRECAUTIONARY STATEMENTS 
AND INSTRUCTIONS FOR USE IN ORDER TO 
MINIMIZE POTENTIAL FOR ATRAZINE 
TO REACH GROUND AND SURFACE WATER. 
AAtrex® SOW 
ACCEP'IED 
wltb COMIIENI'S 
In £PA LeI .... Doled 
Herbicide 
For season-long weed control in corn, 
sorghum and certain other crops. 
Active Ingredients: 
. 23;· 
tinder do .. Fed .... 1 Inoeclldd ... 
Fandlclde. owl B ....... dde Ad 
.. .... .. de... ror tb. ....... Ide 
..,...."", _or FoPA Bet!!. No. 
IPb - ".U' 
Atrazine: 2-chloro-4-ethylamino-6-
isopropylamino-.s.-triazine ...............•............... 76% 
4% Related compounds ...................................... . 
Inert Ingredients: 
Total: 
AAtrex SOW is a wettable powder 
KEEP OUT OF REACH OF CHILDREN. 
CAUTION 
Sae additional precautionary statements 
and directions for use inside booklet. 
EPA Reg. No. 100-439 
EPA Est. 100-LA-l 
CGA 7L91 
Ciba-Geigy 
." 
20% 
100% 
3bJS

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DIRECTIONS FOR USE AND CONDITIONS OF SALE AND WARRANTY 
IMPORTANT: Read the entire Qirections for Use and the 
Conditions of Sale and Warranty before using this product. If 
terms are not acceptable, return the unopened product container 
at once. 
Conditions of Sale and Warranty 
The Directions for Use of this product reflect the opinion of 
experts based on field use and tests. The directions are 
believed to be reliable and should be followed carefully. How­
ever, it is impossible to eliminate all risks inherently associ­
ated with use of this product. Crop injury, ineffectiveness, or 
other unintended consequences may result because of such factors 
as weather conditions, presence of other materials, or the man­
ner of use or application all of which are beyond the control of 
Ciba-Geigy or the Seller. All such risks shall be assumed by 
the Buyer. 
Ciba-Geigy warrants that this product conforms to the chemical 
description on the label and is reasonably fit for the purposes 
referred to in the Directions for Use subject to the inherent 
r.isks referred to above. Ciba-Geigy makes no other express or 
implied warranty of Fitness or Merchantability or any other 
express or implied warranty. In no case shall Ciba-Geigy or the 
Seller be liable for consequential. special. or indirect damages 
resulting from the use or handling of this product. Ciba-Geigy 
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 agreement in writing signed by a 
duly authorized representative of Ciba-Geigy.

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Q1~CTIQ~~~R_U~S~E~' __________________________________________ __ 
It is a violation of Federal law to use this product in a manner 
inconsistent with its labeling. 
Do not apply this product in a way that will contact workers or 
other persons, either directly or through drift. Only protected 
handlers may be in the area during application. For any re­
quirements specif~c to your State or Tribe, consult the agency 
responsible for pesticide regulation. 
AGRICULTURAL USE REQUIREMEN~S 
Use this product only in accordance with its labeling and with 
the Worker Protection Standard, 40 CFR part 170. This Standard 
contains requirements for the protection of agricultur~l work­
ers on farms, forests, nurseries, and greenhouses, and handlers 
of agricultural pesticides. It contains requirements for 
training, decontamination, notification, and emergency assis­
tance. It also contains specific instructions and exceptiops 
pertaining to the statements on this label about personal pro­
tective equipmel1t (PPE) and restricted-entry interval. The re­
quirements in this box only apply to uses of this product that 
are covered by the Worker Protection Standard. 
Do not enter or allow worker entry into treated areas during 
the restricted L,try interval (REI) of 12 hours. Exception: 
If the product is soil-injected or sOil-incorporated, the 
Worker Protection Standard, under certain circumstances, allows 
workers to enter the treated area if there will be no contact 
with anything that has been treated. 
PPE required for early entry to treated areas that is permitted 
under the Worker Protection Standard and that involves contact 
with anything that has been treated, such as plants, soil, or 
water is: 
• Coveralls 
• Chemical-resistant gloves 
• Chemical-resistant footwear plus socks 
• Protective eyewear 
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L-____________ _

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NON-AGRICULTURAL USE REQUIREMENTS 
The requirements in this box aFply to uses of this product that 
are NOT within the scope of the Worker Protection Standard for 
agricultural pesticides (40 CFR Part 170). The WPS applies 
when this product is used to produce agricultural plants on 
farms, forests, nurseries, or greenhouses. 
Do not enter treated areas without protective clothing until 
sprays have dried. 
FAILURE TO FOI,LOW THE DIRECTIONS FOR USE AND PRECAUTIONS ON THIS 
LABEL MAY RESULT IN POOR WEED CONTROL, CROP INJURY, OR ILLEGAL 
RESIDUES. 
Do not apply this product through any type of irrigation system. 
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General Information 
This herbicide controls many annual broadleaf and grass weeds in 
corn, sorghum, sugarcane, and certain other crops specified on 
this label. This product may be applied before or after weeds 
emerge. 
Following many years of continuous use of this product and 
chemically related products, biotypes of some of the weeds 
listed on this label have been reported which cannot be effec­
tively controlled by this and related herbicides. Where this is 
known or suspected and weeds controlled by this product are 
expected to be present along with resistant biotypes, we recom­
mend the use of this product in combinations or in sequence with 
other registered herbicides which are not triazines. If only 
resistant biotypes are expected to be present, use a registered 
non-triazine herbicide. Consult with your state Agricultural 
Extension Service for specific recommendations. 
Since this product acts mainly through root absorption, its 
effectiveness depends on moisture to move it into the root zone. 
If weeds develop, a shallow cultivation or rotary hoeing will 
gene~ally result in better weed control. 
This product is noncorrosive to equipment and metal surfaces, 
nonflammable, and has low electrical conductivity. 
Avoid using near adjacent desirable plants or in greenhouses, or 
injury may occur. 
To avoid spray drift, do not apply under windy conditions. 
Avoid spray overlap, as crop injury may result. 
Where the use directions give a range of rates, use the lower 
rate on coarse-textured soil and soil low in organic matter; use 
the higher rate on fine-textured soil and soil high in organic 
matter. 
Note: Ciba-Geigy does not recommend applications in combination 
with other herbicides or oils, except as specifically described 
on the label or in literature published by Ciba-Geigy. 
APplication Procedures 
Ground application: Use conventional ground sprayers equipped 
with nozzles that provide accurate and uniform application. Be 
certain that nozzles are uniformly spaced and are the same size. 
Calibrate sprayer before use and recalibrate at the start of 
each season and when changing carriers. Unless otherwise speci­
fied, use a minimum of 10 gals. of spray mixture/A for all pre­
plant incorporated, preplant surface, preemergence, and post-
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emergence applications (with or without oil or surfactant) with 
ground equipment. 
Use a pump with capacity to (1) maintain 35-40 psi at nozzles, 
(2) provide sufficient agitation in tank to keep mixture in sus­
pension, and (3) to provide a minimum of 20% bypass at all 
times. Use centrifugal pumps which provide propeller shear 
action for dispersing and mixing this product. The pump should 
provide a minimum of 10 gals./minute/IOO gal. tank size circu­
lated through a correctly positioned sparger tube or jets. 
Use screens to protect the pump and to prevent nozzles from 
clogging. Screens placed on the suction side of the pump should 
be 16-mesh or coarser. Do not place a screen in the recircula­
tion line. Use 50-mesh or coarser screens between the pump and 
boom, and where required, at the nozzles. Check nozzle manufac­
turer's recommendations. 
For band applications, calculate amount to be applied per acre 
as follows: 
band width in inches 
row width in inches x broadcast rate 
per acre 
amount needed 
per acre of field 
Aerial application: Use aerial application only where broadcast 
applications are specified. Apply in a minimum of 1 gal of 
water for each 1 lb of this product applied per acre. For poS1_­
emergence treatments on corn and sorghum, apply recommended rate 
in a minimum of 2 gals. of water/A. Avoid applications under 
conditions where uniform coverage cannot be obtained or where 
excessive spray drift may occur. 
Avoid application to humans or animals. Flagmen and loaders 
should avoid inhalation of spray mist and prolonged contact with 
skin. 
Application in water or liquid fertilizer: Nitrogen solution or 
complete liquid fertilizer may replace all or part of the water 
as a carrier for preemergence, preplant incorporated, or pre­
plant surface ground application on corn and sorghum. Check the 
compatibility of this product with liquid fertilizer and/or 
nitrogen solution as shown below before use. Do not apply in 
nitrogen solution or complete liquid fertilizer after corn or 
sorghum emerges. 
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~ompatibility Test: Since liquid fertilizers can vary, even 
within the same analysis, always check compatibility with herbi­
cide(s) each time before use. Be especially careful when using 
complete suspension or fluid fertilizers as serious compatibil­
ity problems are more likely to occur. Commercial application 
equipment may improve compatibility in some instances. The fol­
lowing test assumes a spray volume of 25 gals. per acre. For 
other spray volumes, make appropriate changes in the ingredi­
ents. Check compatibility using this procedure: 
1) Add 1 pint of fertilizer to each of 2 one-quart jars 
wi th tight lids. 
2) To ~ of the jars add 1/4 tsp. or 1.2 milliliters of 
a compatibility agent approved for this use, such as 
Compex® or Unite® (1/4 tsp. is equivalent to 2 pts. 
per 100 gals. spray). Shake or stir gently to mix. 
3) To both jars add the appropriate amount of herbi­
cide(s). If more than one herbicide is used, add 
them separately with dry herbicides first, flowables 
next, and emulsifiable concentrates last. After each 
addition, shake or stir gently to thoroughly mix. 
The appropriate amount of herbicides for this test 
follows: 
Dry herbicides: For each pound to be applied per 
acre, add 1.5 level teaspoons to 
each jar. 
Liquid herbicides: For each pint to be applied per 
acre, add 0.5 teaspoon or 2.5 
milliliters to each jar. 
4) After adding all ingredients, put lids on and 
tighten, and invert each jar ten times to mix. Let 
the mixtures stand 15 minutes and then look for sepa­
ration, large flakes, precipitates, gels, heavy oily 
film on the jar, or other signs of incompatibility. 
Determine if the compatibility agent is needed in the 
spray mixture by comparing the two jars. If either 
mixture separates, but can be remixed readily, the 
mixture can be sprayed as long as good agitation is 
used. If the mixtures are incompatible, test the 
following methods of improving compatibility: 
(A) slurry the dry herbicides(s) in water before 
addition, or (B) add 1/2 of the compatibility agent 
to the fertilizer and the other 1/2 to the emulsifi­
able concentrate or flowable herbicide before addi­
tion to the mixture. If incompatibility is still ob­
served, do not use the mixture . 
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Application in water plus emulsifiable oil or oil concentrate: 
Adding emulsifiable oil (petroleum-derived, petroleum-derived 
oil concentrate, or single or mixed crop-derived oil concen­
trate) to postemergence water-based sprays in corn and sorghum 
may improve weed ~ontrol. However, under certain conditions the 
use of either type of oil may seriously injure the crop. To 
minimize this possibility, observe the following directions: 
Use one of the following properly emulsified: 
1. A suitable oil concentrate containing at least 1\ but 
not more than 20% suitable emulsifier or surfactant 
blend. 
2. Petroleum-derived oil containing at least 1% suitable 
emulsifier. 
Note: In the event of a compatibility problem when mixing oil 
with this product and water, a compatibility agent such as 
Compex or Unite should be used. Any of the above oils 
contaminated with water or other materials can cause com­
patibility problems and/or crop injury. 
Mixing procedures - all uses: (1) Be sure sprayer is clean and 
not contaminated with any other materials, or crop injury or 
sprayer clogging may result. (2) Fill tank 1/4 full with clean 
water, nitrogen solution, or complete liquid fertilizer. 
(3) Start agitation. (4) Be certain that the agitation system 
is working properly and creates a rippling or rolling action on 
the liquid surface. (5) Pour product directly from bag into 
tank. (6) Continue filling tank until 90% full. Increase ag­
itation if necessary to maintain surface action. (7) Add 
emulsifiable oil, oil concentrate, or tank mix herbicide(s) 
after this product is thoroughly suspended. (8) Finish filling 
tank. (9) Empty tank as completely as possible before refilling 
to prevent buildup of oil or emulsifiable concentrate residue. 
Maintain agitation to avoid separation of materials. (10) If an 
oil or emulsifiable c~ncentrate film starts to build up in tank, 
drain it and clean with strong detergent solution or solvent. 
(11) Clean sprayer thoroughly immediately after use by flushing 
system with water containing a detergent. 
Rotational CrQPs - All Uses: (1) Do not rotate to any crop 
except corn or sorghum until the following year, or injury may 
occur. (2) If applied after June lu, do not rotate with crops 
other than corn or sorghum the next year, or crop injury may 
occur. (3) In the High Plains and Intermountain areas of the 
West where rainfall is sparse and erratic or where irrigation is 
required, use only when corn or sorghum is to follow corn or 
sorghum or when a crop of untreated corn or sorghum is to pre­
cede other rotational crops. (4) In eastern parts of the 
Dakotas, KS, west~rn MN and NE, do not rotate to soybeans if the

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rate applied to corn or sorghum was more than 2.5 lbs./A or 
equivalent band application rate, or soybean injury may occur. 
(5) Injury may occur to soybeans planted the year following 
application on soils having a calcareous surface layer. (6) Do 
not plant sugar beets, tobacco, vegetables (including dry 
beans), spring-seeded small grains, or small-seeded legumes and 
grasses the year following application, or injury may occur. 
AAtrex BOW Applied Alone - Corn or Grain Sorghum* 
Preplant Surface-Applied. Preplant Incorporated. or Preemergence 
(or Postemergence at 
2.5 Ibs.LA with oil) 
Broadleaf and Grass Weeds Controlled 
barnyardgrass (watergrass)*** 
giant foxtail** 
green foxtail*** 
large (hairy) crabgrass** 
wild oats 
witchgrass (Panicum capillare)*** 
yellow foxtail*** 
cocklebur** 
groundcherry 
jimsonweed 
kochia 
lambs quarters 
annual morningglory 
mustards 
nightshade 
pigweed 
purslane 
ragweed 
sicklepod** 
velvetleaf (buttonweed)*** 
Postemergence with Emulsifiable Oil or Oil Concentrate in Water 
(at 1. 5 lbs .LA) 
Broadleaf Weeds Controlled 
annual morningglory 
cocklebur 
jimsonweed 
lambsquarters 
mustards 
pigweed 
rag" led 
smartweed 
wild buckwheat 
velvetleaf** 
*Where there are state/local requirements regarding atrazine 
use (including lower maximum rates and/or greater setbacks) 
which are different from the label, the more restric­
tive/protective requirements must be followed. Certain 
states may have established rate limitations within specific 
geographical areas. Consult your state lead pesticide con­
trol agency for additional information. It is a violation of 
this label to deviate from state use regulations. 
**Partial control only . 
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***Partial control only on medium- and fine-textured soils. 
Corn 
Preplant Surface-Applied (Broadleaf and grass contro11: Use on 
medium- and fine-textured soil with minimum-tillage or no­
tillage systems only in CO, lA, IL, IN, KS, KY, MM, MO, MT, NO, 
NE, SO, WI, and WY. Apply the recommended rate of AAtrex SOW 
shown in Table 1 up to 45 days prior to planting. On 
coarse-textured soils, do not apply more than two weeks prior. to 
planting. If an unsatisfactory length of weed control results 
from adverse environmental conditions following early treatment, 
a follow-up application of an appropriately labeled herbicide 
may be used. If the follow-up treatment includes atrazine, do 
not exceed the labeled rate for corn indicated in Table 1. 
If weeds are present at the time of treatment, apply in tank mix 
combination with a contact herbicide (for example, Gramoxone® 
Extra or Roundup®). Observe directions for use, precautions, 
and restrictions on th~ label of the contact herbicide. 
Note: To the extent possible, do not move treated soil out of 
the row or move untreated soil to the surface during planting, 
or weed control will be diminished. 
Prep1ant Incorporated (Broad1eaf and grass control I : Broadcast 
in spring after plowing at rate in Table 1. Apply to the soil 
and incorporate before, during, or after final seedbed prepara­
tion. Avoid deep incorporation. For best results, apply within 
two weeks prior to planting. 
Preemergence or At-Planting (br~~dJeaf and grass control I : 
Apply during or shortly after planting before weed emergence, at 
rate in Table 1. 
Postemergence (Broad1eaf and grass contro11: Apply before weeds 
exceed 1.5 inches in height and before corn exceeds 12 inches in 
height at rate in Table 1.

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Table 1: ~adleaf and Grass Weed Control on Corn* 
rOR ALL SOIL APPLICATIONS PRIOR TO CROP IMERGEtfCl 
• On Highly Erodible Soil. 'I. defiptd by SeS) 
If conservation tillage is practiced, leaving at least 
30% of the soil covered witn plant residues at plant­
ing, apply a maximum of 2.5 lbs./A as a broadcast 
spray. 
If the soil coverage with plant residue is less than 
30% at planting, a maximum of 2.0 lbs./A may be 
applied. 
• On Soils Not Highly Erodible 
Apply 2.5 lbs./A as a broadcast spray. 
FOB POSTEHERGKNGE APPLICATION 
If no atrazine was applied prior to corn emergence, apply a 
maximum of 2.5 lbs./A broadcast. If a postemergence treat­
ment is required following an earlier herbicide applica­
tion, the total atrazine applied may ~ot exceed 2.5 lbs. 
active ingredient (3.1 lbs. of this product) per acre per 
calendar year. 
*Broadleaf control (eastern co. western KS. western NE. NM. 
OK Panhandle. west TX. and eastern WX): On sand, loamy sand, 
sandy loam, mild to strongly alkaline soil, and all recently 
leveled soil, apply no more than 1.5 lbs./A, either preplant 
surface, preplant incorporated, or preemergence. On other 
soils in these areas, apply rate in Table 1 for broadleaf and 
grass control. 
Where there are state/local requirements regarding atrazine use 
(including lower maximum rates and/or greater setbacks) which 
are different from the label, the more restrictive/protective 
requirements must be followed. Certain states may have estab­
lished rate limitations within specific geographical areas. 
Consult your state lead pesticide control agency for additional 
information. It is a violation of this label to deviate from 
state use regulations. 
/3 ~35 
Postemergence with emulsifiable oil or oil concentrate .in water: 
Add the following volume of one of the type oils indicated for 
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aerial or ground application unless the oil label specifies oth­
erwise: 
Ground 
TWe Oil Application 
Oil concentrate 1 qt. /A 
(Crop or Petroleum-derived) 
Petroleum-derived oil 1 gal./A 
Aerial 
Application 
1/2-1 qt./A 
2 qts./A 
Note: Crop-derived or petroleum-derived oil concentrates 
should contain at least 1% but not more than 20% 
suitable emulsifier or surfactant blend. 
Petroleum-derived oils should contain at least 1% 
suitable emulsifier. 
Broadleaf and grass control: For postemergence control of those 
weeds listed under Preplant Inco~orated and Preemergence, 
broadcast 2.5 lbs./A plus emulsifiable oil or oil concentrate 
after weed emergence, but before w~eds reach 1.5 inches in 
height. 
Broadleaf control: For postemergence control of those weeds 
listed under Post emergence with emulsifiable oil or oil concen­
trate in water, broadcast 1.5 Ibs./A plus emulsifiable oil or 
oil concentrate before pigweed and lambsquarters reach 6 inches 
in height and before all other weeds reach 4 inches in height. 
A cUltivation may be necessary if all weeds are not controlled 
or if weeds regrow. 
Precautions: For applications with emulsifiable oil or oil 
concentrate in water: (1) Inbred lines or any breeding stock 
may be severely injured by applications with emulsifiable oil or 
oil concentrate. (2) Adding other insecticides. herbicides. 
liquid fertilizers. or other materials is not recommended. 
because they may cause compatibility problems or crop injury. 
(3) Store and handle emulsifiable oil and oil concentrate care­
fully. Oil contaminated with even a small amount of water may 
not emulsify properly when added to the tank. To avoid crop 
injury. (4) DO not apply when crop is under stress from pro­
longed cold. wet weather. poor fertility. or other factors. or 
when crop is wet and succulent from recent rainfall. (5) DO not 
exceed 2.5 lbs. active ingredient (or 3.1 Ibs. Of this product) 
per acre per calendar year. (6) Postemergence applications to 
corn must be made before corn exceeds 12 inches in height.

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Tank Mixtures for Corn 
This product may be tank mixed with these herbicides for control 
of certain broadleaf and grass weeds in corn: 
Dual. (metolachlor) 
Dual + Gramoxone Extra 
Dual + Roundup (glyphosate) 
Dual + Princepe 
Dual + Princep + Gramoxone Extra 
Dual + Princep + Roundup 
sexton. or Ramrod. (propachlor) 
Lasso® or Lasso EC (alachlor) 
Lasso or Lasso EC + Roundup 
Lasso or Lasso EC + Gramoxone Extra 
Gramoxone Extra 
Princep 
Princep + Gramoxone Extra 
Princep + Roundup 
Roundup 
Sutan+® 
Use tank mix directions appearing on the labels of the above 
herbicides when tank mixing with this product. Observe all pre­
cautions and limitations on labeling of products used in a par­
ticular tank mix. 
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Princep SOW. Princep 4L. or Princep Caliber 90e 
In addition to the weeds listed under AAtrex SOW Applied 
Alone - Corn or Grain Sorghum - Preplant Surface-Applied. 
Preplant Incorporated. or Preemergence, this combination 
also controls crabgrass, fall panicum, and carpetweed. 
Broadcast tank mix before planting, at planting, or after 
planting, but before crop and weeds emerge, at rates in 
Table 2. Use the 1:1 ratio for control of most weeds. Use 
the 1:2 ratio for expected heavy infestations of crabgrass 
and fall panicum. Cultivate shallowly if weeds develop. 
Preplant Surface-Applied: Use on medium- and fine-textured 
soils with minimum-tillage or no-tillage systems only in 
CO, lA, IL, IN, KS, KY, MN, MO, MT, NO, NE, SO, WI, and WY. 
Apply the recommended rate of AAtrex SOW and Princep shown 
in Table 2 up to 45 days prior to planting. Refer to the 
AAtrex SOW alone section for information if weeds should 
develop following the early treatment. On coarse-textured 
soils, do not apply more than two weeks prior to planting. 
Refer to the AAtrex SOW Alone- Preplant Surface-Applied 
section of the corn label for additional details. 
If weeds are present at time of treatment, apply in a tank 
mix combination with a contact herbicide (for example, Gra­
moxone or Roundup). Observe directions for use, precau­
tions, and restrictions on the label of the contact herbi­
cide. 
Note: To the extent possible, do not move treated soil out 
of the row or move untreated soil to the surface during 
planting, or weed control will be diminished. 
Preplant Incorporated: Apply to the soil and incorporate 
in the spring before, during, or after final seedbed prepa­
ration. Avoid deep incorporation. For best results, apply 
within two weeks prior to planting. 
Preemergence: Apply during or shortly after planting, but 
before crop and weeds emerge. 
Refer to Corn sections of this label and to Princep SOW, 
Princep Caliber 90, or Princep 4L labels for further direc­
tions, limitations and precautions . 
. --
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Table 2: Tank Mixtures with Princep on Corn 
Broadcast Rate/A 
1:1 Ratio'" 1;2 Ratio** 
This Princep This Princep 
Soil Texture Product BOWl Product SOWl 
Sand, loamy sand, 1.25 lbs 1.25 lbs. 0.S3 lb. 1.67 lbs. 
sandy loam 
Loam, silt loam, 
silt, clay loam, 
sandy clay loam, 
silty clay loam, 1.5 lbs. 1.5 lbs. 1 lb. 2 lbs. 
sandy clay, or 
silty clay with 
low organic matter 
Loam, silt loam, 
silt, clay loam, 
sandy clay loam, 
silty clay loam, 
sandy clay, or 
silty clay with loS lbs. loS lbs. 1.2 lbs. 2.4 lbs. 
medium to high 
organic matter, 
and clay 
(including dark 
prairie soils of 
the Co~·n Belt) 
*For control of most weeds. 
**For control of expected heavy infestations of crabgrass 
and fall panicum. 
lWhen using Princep Caliber 90 or Princep 4L, use equivalent 
rates. One lb. of Princep SOW equals 0.9 lb. of Princep Cali­
ber 90 or 1.6 pts. of Princep 4L. 
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Princep BOW. PrinceR 4L. or Princep Caliber 90 plus Roundup: 
Use as tank mixture for preemergence and postemergence control 
of certain broadleaf and grass we~ds where corn will be planted 
directly into a cover crop, established sod, or in previous crop 
residues. Refer to Roundup label for all directions, weeds con­
trolled, precautions, and limitations. 
Princep BOW. Princep 4L. or Princep Caliber 90 plus Gramoxone 
~txa: Use as tank mixture with Princep and Gramoxone Extra to 
kill existing vegetation and for residual weed control where 
corn will be planted directly into a cover crop, established 
sod, or in previous crop residues. Add this product and Princep 
to water in spray tank, agitating until thoroughly mixed. Then 
add Gramoxone Extra and a nonionic surfactant, such as X-77®. 
Continue agitation during application. Broadcast 1.25-2.5 lbs. 
of this product plus 1.25-2.5 lbs. Princep SOW [or 2-4 pts. 
Princep 4L, or 1.1-2.2 lbs. Princep Caliber 90] plus a suitable 
amount of Gramoxo~e Extra in 20-60 gals. of water per sprayed 
acre. Refer to the Gramoxone Extra label for the appropriate 
rates to utilize in this tank mixture. Apply before, during, or 
after planting, but before corn emerges. Add 0.5 pt. of a non­
ionic surfactant, such as X-77, per 100 gals. of spray mixture. 
Use the higher z:'ate of Gramoxone Extra specified on the label if 
existing vegetation is 4-6 inches tall. This mixture will not 
control weeds taller than 6 inches. 
Refer to further limitations and precautions on labels for this 
product, Princep, and Gramoxone. 
Precautions: For all applications to corn: III To avoid crop 
injury and illegal residues. do not apply more than 3.1 lbs./A 
of this product per year. 121 For best control of yelyetleaf 
and cocklebur. the application rate cannot be less than 2 lbs./A 
active ingredient. either alone or in tank mix combinations. 
131 Following harvest. plow Imoldboard or disk-plowl and thor­
oughly till soil in fall or spring to minimize possible injury 
to spring-seeded rotational crops. regardles& of rate used. 
Note for all applications to corn: Do not graze or feed forage 
from treated areas for 21 days following application, or illegal 
residues may result. 
Sorghum and Sorghum-sudan Hybrids IGrain and Forage Typesl 
Preplant Surface-Applied IBroadleaf and grass controll: Use on 
medium- and fine-textured soil with minimum-tillage or no­
tillage systems only in CO, lA, IL, IN, KS, KY, MN, MO, MT, NO, 
NE, SO, WI, and WY. Apply the recommended rate of AAtrex SOW 
shown in Table 3 for the soil texture as a split treatment up to 
45 days prior to planting. If an unsatisfactory length of weed 
control results from adverse environmental conditions following 
early treatment, a follow-up application of an appropriately

-17-
labeled herbicide may be used. If the follow-up treatment 
includes atrazine, do not exceed the labeled rate for corn 
indicated in Table 1. Under dry conditions, irrigation after 
application is recommended to move AAtrex SOw into the soil. 
If weeds are present at time of treatment, apply in a tank mix 
combination with a contact herbicide (for example, Gramoxone 
Extra or Roundup). Observe directions for use, precautions, and 
restrictions on the label of the contact herbicide. 
~: To the extent possible, do not move treated soil out of 
the row or move untreated soil to the surface during planting, 
or weed control will be diminished. 
Preplant Inco~orated /Broadleaf and grass control): Broadcast 
in spring after plowing at rate shown in Table 3. Apply before, 
during, or after final seedbed preparation. If soil is tilled 
or worked after application, avoid deep incorporation. For best 
results, apply within two weeks prior to planting. 
Preemergence /Broadleaf and grass control): Apply during or 
shortly after planting, but prior to weed or crop emergence at 
rate shown in Table 3. 
Postemergence /Broadleaf and grass controll: Apply at rate 
shown in Table 3 before weeds exceed 1.5 inches in height and 
before sorghum exceeds 12 inches in height.

-18-
Table 3: Broadleaf and Grass weed Control in Sorghum~'~ 
FOB I1J: SOIL apPLICATIONS PRIOR TO CRop EMERGENCE 
• On lighly Irodibla Soil. la, defined by ses) 
If conservation tillage is practiced, leaving at least 
30% of the soil covered with plant residues at plant­
ing, apply a maximum of 2.2 lbs./A as a broadcast 
spray. 
If the soil coverage with plant residue is less than 
30% at planting, a maximum of 1.8 Ibs./A may be 
applied. 
• On Soil. Not Highly Erodible 
Apply 2.2 lbs./A as a broadcast spray. 
FOR POSTEMERGENCE APPLICATION 
If no atrazine was applied prior to corn emergence, apply a 
maximum of 2.2 lbs./A broadcast. If a postemergence treat­
ment is required following an earlier herbicide 
application, the total atrazine applied may not exceed 
2.5 lbs. active ingredient (2.8 lbs. of this product) per 
acre per calendar year. 
100 not apply preplant surface or preplant incorporated 
in AL, 'R, FL, GA, LA, MS, NC, NM, OK, SC, TN, or TX. 
Do not apply preemergencc in NM, OK, or TX, except in 
northeast OK and the TX Gulf Coast and Blacklands areas. 
2Where there are state/local requirements regarding 
atrazine use (including lower maximum rates and/or 
greater setbacks) which are different from the label, 
the more re~trictive/protective requirements must be 
followed. Certain states may have established rate 
limitations within specific geographical areas. Consult 
your state lead pesticide control agency for additional 
information. It is a violation of this label to deviate 
from stete use regulations. 
In case of planting failure, sorghum or corn may be replanted. 
Do not make a second broadcast application, or injury may occur. 
If originally applied in a band and sorghum or corn is replanted 
in untreated row middles, this product may be applied in a band 
to the second planting provided the maximum application rate of

-19-
2.5 lbs. ai/A atrazine per calendar year is not exceeded. 
Preemergence broad leaf weed control in furrow irrigated bedded 
sorghum (AZ and CA gnly): For preemergence control of many 
broadleaf weeds, broadcast 1-1.5 lbs./A after bed preparation, 
during or after planting, but before sorghum and weeds emerge 
and before the first furrow irrigation. Follow with several 
regular irrigations, making sure to thoroughly wet all soil. 
Precautions for pregmergence application to furrow irrigated 
bedded sorghum in AZ and CA: To avoid possible sorghum injury, 
do not use on sand or loamy sand soil or on sorghum planted in 
furrows. Applications to sorghum growing on alkali soils or 
where cuts. fills. or erosion have exposed calcareous or alkali 
subsoils may cause crop injury. In case Of crop failure. dO not 
replant sorghum for S months following application. Corn may be 
planted immediately. 
Postemergence broadleaf weed control with emulsifiable oil or 
oil concentrate in water: Broadcast 1.5 Ibs./A for control of 
many broadleaf weeds. Apply before pigweed and lambsquarters 
reach 6 inches in height and before all other weeds reach 4 
inches in height. In CO, western KS, NM, OK, TX, and desert 
regions of AZ and CA, apply when sorghum is 6-12 inches in 
height. In all other areas, apply after sorghum reaches the 
3-leaf stage but before it exceeds 12 inches in height. Add 
1 gal. of emulsifiable oil/A for ground application and 0.5 
gal./A for aerial application, or add 1 qt./A of oil concentrate 
for ground application. A cultivation may be necessary if all 
weeds are not controlled or if weeds regrow. 
For the list of weeds controlled, see AAtrex SOW Applied Alone -
Corn or Grain Sorghum - Postemergence with Emulsifiable Oil or 
Oil Concentrate in Water. 
Precautions for applications with emulsifiable oil or oil con­
centrate in water: See "Precautions for applications with emul­
sifiable oil or oil concentrate in water" in Corn section. 
Postemergence broadleaf weed control with surfactant (CO. west­
ern KS. HM. OK. TX. and desert regions of AZ and CA only) : 
Broadcast 1.5 Ibs./A plus 0.75-1.5 pts. of surfactant after sor­
ghum reaches 6 inches in height, but before weeds exceed 1.5 
inches in height. Apply only on sandy loam and finer textured 
soil. 
Precautions: For all applications to sorghum: (1) Heayy rain 
immediately following application tends to cause excessive con­
centrations Of herbicide in seed furrow, resulting in possible 
crop injury. Do not apply to furrow-planted sorghum until fur­
rows are leveled (plowed in). Level deep planter marks or see~ 
furrows before application. (2) Application to sorghum growing 
under stress caused by minor element deficiency or to sorghum

-20-
growing on highly calcareous soil may result in crop injury. 
(3) Following harvest. plow (moldboard or disk-plow) and thor 
Qughly till soil in fall or spring to minimize possible injury 
to spring seeded rotational crops. regardless of rate used. 
(4) Injury may occur if both this herbicide. preplant surface. 
preplant incorporated. or preemergence. and an at planting sys­
temic insecticide applied in-furrow are used. (5) Do not apply 
more than 2.5 lbs. active ingredient (3.1 lbs. of this product) 
per acre per calendar year. (6) For all soil applications prior 
to crop emergence (except for preemergence use on bedded sorghum 
in AZ and CA). do not apply to coarse-textured soils. i.e .. 
soils haying less than 1% organic matter. or injury may occur. 
(7) For postemergence applications. do not apply to sand or 
loamy sand. or injury may occur. 
~: Do not graze or feed forage from treated areas for 21 
days following application, or illegal residues may result. 
Tank Mixtures for Grain Sorghum 
Dual 8E: Use as tank mixture with Dual 8E for control of those 
weeds listed on the Dual 8E label, as well as on this label. 
Use this tank mixture only on sorghum seed treated with Concep®. 
Refer to the Dual 8E label for all directions, precautions, and 
limitations. 
Winter Weed Control in Texas 
For postemergence control of winter weeds only, such as henbit, 
seedling dock, and annual thistle on fall bedded land in the 
Gulf Coast and Blacklands of TX. Apply 1-1.25 lbs./A postemer­
gence to the weeds in November or December to land that will be 
planted to corn, grain sorghum, or forage sorghum the following 
spring. For best results, add a suitable surfactant, such as 
X-77, at the rate of 0.5% of the spray volume, an emulsifiable 
oil at the rate of 1.0% of the spray volume, or an oil concen­
trate at the rate of 1 qt. per acre. 
Normal weed control programs may be used in the following corn, 
grain sorghum or forage sorghum crop. 
~: Do not plant any crops except corn, grain sorghum, or 
forage sorghum the spring following this treatment, or illegal 
residues may result. 
AAtrex 80W Alone - Chemical Fallow 
Wheat-Sorghum-Fallow: To control annual broadleaf and grass 
weeds following wheat harvest and in the following sorghum crop 
when grown under minimum tillage, broadcast 3.75 lbs./A to wheat

'. 
~ 
-21-
stubble immediately following wheat harvest. If weeds are pre­
sent at application, remove them with a sweep plow or other 
suitable implement after application, or use an approved contact 
herbicide before or after the application of AAtrex SOW. Plant 
sorghum into wheat stubble the following spring with minimum 
soil disturbance. Use a surface planter or a planter leaving a 
shallow furrow. If weeds are present at planting, remove them 
with a sweep plow or other suitable implement before planting. 
For the list of weeds controlled, see AAtrex SOW Applied Alone -
Corn or Grain Sorghum - Preplant Surface-Applied. Preplant 
Incorporated. or Preernergence. 
Precautions: (1) Use only on silt loam or finer textured soil 
or crQP injury may result. (2) Wheat-sorghum-fallow cropping 
sequence must be followed. (3) PQ not apply following sorghum 
harvest. 
In the event that grasses are present the following spring, use 
a grass herbicide registered for use on sorghum. 
Note: To avoid illegal residues, do not graze or feed forage 
from treated area to livestock. To avoid illegal residues and 
crop injury, do not plant any crop other than those on this 
label within IS months following treatment. 
Wheat-Corn-Fallow (CO. KS. NO. NE. SO. and WY): This product 
controls cheatgrass (downy brome, chess), kochia, mustards, 
pigweed, Russian thistle, wild lettuce, wild sunflower, and 
volunteer wheat during period after wheat harvest. Weed control 
may extend into following corn crop grown under minimum tillage. 
On soils in NO and SO with a pH greater than 7.5, do not exceed 
1.5 Ibs. A.I./A of AAtrex. For soils with a pH less than 7.5 in 
NO and SO, apply 1-2 Ibs. A.I./A. Use the higher rate on finer­
textured soils and where heavy weed infestations are expected. 
Use the lower rate on coarse-textured soils and where light weed 
infestations are expected. In the event grasses are present in 
the following spring, use a grass herbicide registered for use 
on corn. 
Follow directions for use, notes, and precautions in the Wbeat­
Sorghum-Fallow section above, substituting corn for references 
to sorghum. 
Wheat FallQw-Wheat (CO. KS. NO. NE. SP. and WI): For pre­
emergence control of cheatgrass (downy brome, chess), common 
lambsquarters, field pennycress, kochia, mustard, Russian this­
tle, wild lettuce, and suppression of volunteer wheat during 
fallow period of a wheat-fallow-wheat rotation, broadcast 0.6-
1.25 lbs./A on all soils except those listed under Precautions. 
For control of pigweed and wild sunflower, use the higher rate. 
Apply to stubble ground. Treat only once during sam~ fallow

-22-
period. 
Tank Mixtures for Chemical Fallow 
Wheat-Sorghum-Fallow or Wheat-Corn-Fallow (KS. NE) 
Gramoxone Extra: If weeds are present at application, a tank 
mix with Gramoxone Extra may be used. Broadcast 3.75 Ibs. of 
AAtrex BOW plus a suitable amount of Gramoxone Extra in 20-60 
gals. of water/A by ground equipment. Add 0.5-1 pt. of a non­
ionic surfactant, such as X-77, per 100 gals. of spray mixture. 
Add AAtrex to spray tank first and thoroughly mix with water. 
Then add Gramoxone Extra, followed by surfactant. Use the 
higher rate of Gramoxone Extra specified on the label if weeds 
are 4-6 inches tall. This mixture will not control weeds taller 
than 6 inches. Apply to stubble ground. Treat only once during 
same fallow period. Refer to Gramoxone Extra label for further 
directions, precautions, and limitations. 
Wheat-~allow Wheat (CO. KS. NO. NE. SO. and WY) 
Gramoxone Extra: If weeds are present at application, a tank 
mix with Gramoxone Extra may be used. Broadcast 0.6-1.25 lbs. 
of AAtrex BOW plus a suitable amount of Gramoxone Extra in 20-60 
gals. of water/A by ground equipment. Add 0.5-1 pt. of a non­
ionic surfactant, such as X-77, per 100 gals. of spray mixture. 
Add AAtrex to spray tank first and thoroughly mix with water. 
Then add Gramoxone Extra, followed by surfactant. Use the 
higher rate of Gramoxone Extra specified on the label if weeds 
are 4-6 inches tall. This mixture will not control weeds taller 
than 6 inches. Apply to stubble ground. Treat only once during 
same fa"llow period. Refer to Gramoxone Extra label for further 
directions, precautions, and limitations. 
If weeds are present at application and this product is used 
alone, use either an approved contact herbicide before or after 
treatment, or tillage after treatment. 
Use tillage to control weeds which escape during fallow period. 
Till before planting. For this product applied alone or in tank 
mixture with Gramoxone Extra, plant at least 2 inches deep and 
12 months or more after application. 
Precautions: To avoid crop injury. (1) 00 not use on sand soil. 
(2) DO not treat eroded hillsides. caliche and rocky out­
croppings. or exposed calcareous subsoil. (3) DO not treat 
soils of the R?sebud and Canyon Series in western NE and adjoin­
ing counties in CO and WY. (4) Do not treat soils with calcare­
ous surface layers or SOils with a pH greater than 7.5. 
(5) Avoid spray overlap. 
Note: Do not graze treated areas within 6 months after applica-

.' 
-23-
tion, or illegal residues may result. 
Aerial apolication: In order to assure that spray will be con­
trollable within the target area when used according to label 
directions, make applications at a maximum height of 10 ft., 
using low drift nozzles at a maximum pressure of 40 psi, and 
restrict application to periods when wind speed does not exceed 
10 mph. To assure that spray will not adversely affect adjacent 
sensitive nontarget plants, apply AAtrex SOW alone by aircraft 
at a minimum upwind distance of 400 ft. from sensitive plants. 
Roadsides 
To control certain annual weeds in established perennial grasses 
along roadsides in CO, KS, MT, NO, NE, SO, and WY, including 
cheatgrass (downy brome, chess), common (annual) broomweed, lit­
tle barley, medusahead, sagewort, and tumble mustard, broadcast 
1.25 lbs./A in a minimum of 10 gals. of water by ground equip­
ment in the fall before ground freezes, or after thawing in the 
spring, but before the established grasses g~een-up and before 
weeds emerge. Examples of desirable established grasses include 
big bluestem, bluegrama, bromegrass, buffalograss, crested 
wheatgrass, Indiangrass, little bluestem, side-oats grama, 
switchgrass, and Western wheatgrass. Apply only once a year. 
Temporary discoloration or othez form of injury to the desirable 
perennial grasses may occur following application. 
Notes: To avoid illegal residues, (1) Do not cut or feed road­
side grass hay. (2) Do not allow livestock to graze treated 
areas. 
Sugarcane 
For control of many broadleaf and grass weeds, including ama­
ranths, crabgrass, fireweed, Flora's paintbrush, foxtails, jun­
glerice and wiregrass, broadcast 2.5-5 lbs. of AAtrex SOW at 
time of planting or ratooning, but before sugarcane emerges. 
Broadcast aerially in a minimum of 5 gals. of spray per acre, or 
broadcast or band by ground equipment in a minimum of 20 gals. 
per acre, unless indicated otherwise. One additional applica­
tion may be made over the sugarcane as it emerges, and two addi­
tional applications may be made interline after emergence as 
directed sprays. Repeat treatments, where needed, may be ap­
plied broadcast, band, or interline as suggested with the final 
application being prior to close-in. Do not exceed the rate of 
herbicide suggested for anyone crop of sugarcane. 
Note: Where high rates of AAtrex are used, apply in a minimum 
of 1 gal. of water for each 1 lb. of product applied per acre. 
Aerial application: In order to assure that spray will be con-

-24-
trollable within the target area when used according to label 
directions, make applications at a maximum height of 10 ft., 
using low drift nozzles at a maximum pressure of 40 psi, and 
restrict application to periods when wind speed does not exceed 
10 mph. To assure that spray will not adversely affect adjacent 
sensitive nontarget plants, apply AAtrex BOW alone by aircraft 
at a minimum upwind distance of 400 ft. from sensitive plants. 
Florida 
For control of emerged pellitory weed: Apply 0.5-0.75 Ibs./A in 
at least 40 gals. of water as a directed spray by ground equip­
ment prior to close-in. Add 4 qts. of surfactant for each 
100 gals. of spray. Thoroughly cover weed foliage. 
For control of alexandergrass, large crabgrass, pellitory 
(artillery) weed, and spiny amaranth, use one of the following 
methods at planting or ratooning: 
1. Apply 5 Ibs./A preemergenc~. Follow with one or two appli­
cations, as needed, postemergence to sugarcane and weeds, 
at 2.5 Ibs./A. Treat before weeds exceed 1.5 inches in 
height. 
2. Apply 1-3 times, as needed, at 2.5 Ibs./A postemergence to 
sugarcane and weeds. Treat before weeds exceed 1.5 inches 
in height. 
Louisiana 
For control of annual weeds during the summer fallow period, 
apply 2.5 Ibs./A to weed-free beds immediately after bed forma­
tion. Follow normal weed control program after pla~ting. 
Precautions: To avoid crop injury. (1) Do not apply more than 
12.5 Ibs./A to anyone crop of sugarcane. (2) If making 
2.5 Ibs./A application during the Summer fallow period. do not 
exceed 10 Ibs./A during the remainder of the growing season. or 
illegal residues may result. 
Texas 
Use AAtrex BOW for control of barnyardgrass, pigweed, purslane 
and sunflower, in plant or ratoon sugarcane. 
Apply 5 Ibs./A of AAtrex BOW preemergence. Follow with one or 
two applications, as needed, at 3.75 Ibs./A postemergence to 
sugarcane and weeds. 
For best results when weeds are emerged, add a nonionic sur­
factant at a concentration of 2 qts./100 gals. to the spray and 
apply before weeds exceed 1.5 inches in height. 
---------------------------------------------------------------------------------

-25-
Precautions: (II Injury to sugarcane may occur when under mois 
~ stress. when soil is of low adsorptive capacity. or when 
land is first cropped to sugarcane. (21 Do not apply after 
close-in. (31 Do not apply more than 12.5 lbs./A to anyone 
crop of sugarcane. or crop tnjury may result.

." 
-26-
~rfgrasses for Sod (Florida only) 
St. Augustinegrass. Centipedegrass. and Zoysiagrass 
Broadcast 2.5-5 lbs./A according to soil texture to control 
those weeds listed under AAtrex BOW Applied Alone - Corn or 
Grain Sorghum - Preplant Surface-Agplied. Preplant Incorporated. 
or Preemergence. 
Old beds: Within 2 days 
after lifting sod. 
Muck or peat 5 lbs. 
New beds: 3-4 days 
after sprigging or plug-
ging. 
Old beds: Within 2 days 
after lifting sod. 
Sandy soil 2.5 Ibs. 
New beds: 7-10 da.ys c.fter 
sprigging or plugging. 
If weeds regrow, apply an additional 2.5 Ibs./A on muck or peat, 
or 1.25 Ibs./A on sandy soil. 
Precautions: To avoid crop injury. (1) Do not apply within 30 
days prior to cutting or lifting. (2) Do not apply in cOrnbina­
tiop with surfactants or other spray additives. (3) Use only on 
turfgrass reasonably free of infestations of insects. nematodes. 
and diseases. (4) On newly sprigged turfgrass. temporary slow 
ing of growth may follow application.

-27-
Turfgrass for Fairways, Lawns, Sod 
~oduction* and Similar Areas 
*1n states other than FL. For use on turfgrass for sod in FL, 
see Turfgrasses for Sod /Florida onlv) section above. 
Bermuda~rass. Centipedegrass. St. Augustjnegrass. and 
Zoysjagrass 
Apply AAtrex SOW after October 1 before emergence of winter 
annual weeds for control of annual bluegrass, burclover, carpet 
burweed, chickweed, corn speedwell, henbit, hop clover, and 
spurweed. AAtrex SOW will control annual bluegrass even if it 
is emerged at time of treatment. For control of summer annual 
weeds listed in the preemergence portion of the AAtrex SOW 
Applied Alone - Corn or Grain Sorghum section of this label, 
also apply AAtrex SOW in late winter before the weeds emerge. 
Apply in a minimum of 15 gals. of water per acre or 1 gal. per 
1,000 sq. ft. 
Where annual bluegrass is the major weed, use 1.25 Ibs. of AA­
trex SOW/A (0.5 oz; per 1,000 sq. ft). Use 2.5 Ibs./A (1 oz. 
per 1,000 sq. ft.) for control of the other weeds named above. 
Do not exceed 1.25 Ibs./A per treatment on newly sprigged turf­
grass or on hybrid bermudagrass such as Tiflawn, Tifway, and 
Ormond. 
For continued summer annual weed control, apply another 
1.25 lbs./A at least 30 days after the previous application, but 
not after April 15. However, do not make more than two applica­
tions of this product per year. 
Precautions; On newly sprigged turfgrass and hybrid bermuda­
grass. temporary slowing of growth and yellowing may occur fol~ 
lowing application. To avoid turf injury. (1) Use only on turf­
grass reasonably free of infestations of insects. nematodes. and 
diseases. (2) Do not use on golf greens. (3) Do not use north 
of NC /except may be used in VA Coastal Plains) or west of the 
high rainfall areas of eastern OK and eastern TX. (4) DO not 
use on muck or alkaline sojls. (5) DO not apply oyer the root­
jng area of trees or ornamentals not listed on thjs label. (6) 
Do not oyerseed with desjrable turfgrass within 4 months before 
or 6 months after treatment. (7) DO not apply thjs product to 
newly seeded bermudagrass until it has overwjntered and has a 
well-deyeloped rhjzome system. DO not exceed 2.2 lbs. productiA 
within 12 months of seeding bermudagrass.

-2S-
Note: Do not graze or feed turf clippings to animals, or ille­
gal residues may result. 
Macadamia Nuts 
For preemergence control of many broadleaf and grass weeds, 
including crabgrass, foxtail, wiregrass, Flora's paintbrush, 
spanishneedles, and fireweed, broadcast 2.5-5 lbs./A before har­
vest and before weeds emerge. Repeat as necessary. Do not 
spray when nuts are on ground during harvest period. Do not 
apply by air. 
Guava 
Use only on established plantings which are at least IS months 
old. Apply as a directed spray at 2.5-5 lbs./A of AAtrex SO\": in 
20-50 gals. of spray mix preemergence or early postemergence to 
weeds. When applying postemergence, the use of a surfactant and 
greater spray volume (SO-100 gals. of spray mix per acre) may 
enhance weed control. This product controls many annual broad­
leaf and grass weeds, including fireweed, purslane, scarlet pim­
pernel, spanishneedles, and sowthistle. 
Notes: To avoid illegal residues, (1) Do not allow spray to 
contact foliage or fruit. (2) Do not apply more frequently than 
at 4 month intervals. (3) Do not apply more than 10 lbs. of 
AAtrex SOW per year. 
Conifers 
For control of annual broadleaf and grass weeds prior to trans­
planting, after transplanting or in established conifers 
[including Douglas fir, grand fir, noble fir, white fir, 
Austrian pine, bishop pine, Jeffrey pine, knobcone pine, lob­
lolly pine, lodgepole pine (shore pine), monterey pine, ponder­
osa pine, Scotch pine, slash pine, blue spruce, and Sitka 
spruce]: Broadcast 2.5-5 lbs. in a minimum of 5 gals. of water 
per acre by air or 10 gals. by ground before weeds are 1.5 
inches tall. Apply to established trees between fall and early 
spring while trees are dormant. For new transplants, apply dur­
ing or soon after transplanting. For applications prior to 
transplanting, allow sufficient precipitation to activate AAtrex 
before transplanting. In areas where spring and summer rainfall 
is inadequate to activate AAtrex SOW, apply during fall prior to 
spring transplanting.

-29-
For the list of weeds controlled, see AAtrex BOW Applied Alone -
Corn or Grain Sorghum - Preplant Surface-Applied. Preplant 
Incorporated. or Preemergence. 
Quackgrass control: Broadcast SIbs. in a minimum of 5 gals. of 
water per acre by air or 10 gals. by ground between fall and 
early spring while trees are dormant and before quackgrass is 
more than 1.5 inches tall. 
Precautions: (1) In areas west of the Rocky Mountaip~ (except 
the Great Basin). grazing may begin 7 months after a fall appli­
cation or 3 months after a winter or spring application. (2) TQ 
prevent illegal residues. do not graze treated areas of the 
Great Basin. or areas east of the Rocky Mountains. 13) Tempo­
rary injury to trees m3Y occur following use of AAtrex 80W on 
~arse-textured soil. (4) To avoid crop injury. do not apply to 
seedbeds. (5) Also aoply only once per year. 
Aerial applicatiQU: In order to assure that spray will be con­
trollable within the target area when used according to label 
directions, make applications at a maximum height of 10 ft. 
above vegetation, using low drift nozzles at a maximum pressure 
of 40 psi, and restrict application to periods when wind speed 
does not exceed 10 mph. To assure that spray will not adversely 
affect adjacent sensitive nontarget plants, apply AAtrex 80W by 
aircraft at a minimum up~ind distance of 400 ft. from sensitive 
plants. 
Storage and Disposal 
Pesticide Storage and Disposal 
Store in a dry place. Do not contaminate water, 
by storage, disposal, or clea~ing of equipment. 
ing from the use of this product may be disposed 
at an approved waste disposal facility. 
Container Disposal 
food, or feed 
wastes result­
of on-site or 
Completely empty bag into application equipment. Dispose of 
empty bag in a sanitary landfill or by incineration, or by open 
burning, if allowed by state and local authorities. If burned, 
keep out of smoke. 
For minor spills, leaks, etc., follow all precautions indicated 
on this label and clean up immediately. Take special care to 
avoid contamination of equipment and facilities during cleanup 
procedures and disposal of wastes. In the event of a major 
spill, fire or other emergency, call 1-800-888-8372 day or 
night.

-30-
Precautionary Statements 
Hazards to Humans and Domestic Animals 
CAUTION 
Harmful if swallowed, inhaled, or absorbed through skin. 
Do not breathe dust or spray mist. Avoid contact with 
eyes, skin or clothing. 
Statement of Practical Treatment 
~f swallowed: Call a physician or Poison Control Center 
immediately. Drink 1 or 2 glasses of water and induce vom­
iting by touching back of throat with finger, or, if avail­
able, by administering syrup of ipecac. Do not induce vom­
iting or give anything by mouth to an unconscious person. 
If inhaleq: Remove victim to fresh air. If not breathing, 
give artificial respiration, preferably mouth-to-mouth. 
Get medical attention. 
If on skin: Wash with plenty of soap and water. Get medi­
cal attention. 
If in eyes: Flush eyes with plenty of water. Call a 
physician if irritation persists. 
Note to Physician: There is no specific antidote for 
atrazine. If this product is ingested, induce emesis or 
lavage stomach. The use of an aqueous slurry of activated 
charcoal may be considered. 
Personal Protactive Equipment: 
Applicators and other handlers must wear: 
• Long-sleeved shirt and long pants 
• Chemical-resistant gloves 
• Chemical-resistant footwear plus socks 
• Protective eyewear 
Follow manufacturer's instructions for cleaning/maintaining 
PPE. If no such instructions for washables, use detergent 
and hot water. Keep and wash PPE separately from other 
laundry.

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Engineering Control Statements: 
When handlers use closed systems, enclosed cabs, or air­
craft in a manner that meets the requirements listed in the 
Worker Protection Standard (WPS) for agricultural pesti­
cides [40 CFR l70.240(d) (4-6)], the handler PPE require­
ments may be reduced or modified as specified in the WPS. 
gsar Safety RapqmmandatioD'j 
Users should: 
• Wash hands before eating, drinking, chewing gum, using 
tobacco or using the toilet. 
• Remove clothing immediately if pesticide gets inside. 
Then wash thoroughly and put on clean clothing. 
Environmental Hazards 
Atrazine can travel (seep or leach) through soil and can 
enter ground water which may be used as drinking water. 
Atrazine has been found in ground water. Users are advised 
not to apply atrazine to sand and loamy sand soils where 
the water table (ground water) is close to the surface and 
where these soils are very permeable, i.e., well-drained. 
Your local agricultural agencies can provide further infor­
mation on the type of soil in your area and the location of 
ground water. 
This product may not be mixed/loaded or used within 50 feet 
of all wells, including abandoned wells, drainage wells, 
and sink holes. Operations that involve mixing, loading, 
rinsing, or washing of this product into or from pesticide 
handling or application equipment or containers within 
50 feet of any well are prohibited unless conducted on an 
impervious pad constructed to withstand the weight of the 
heaviest load that may be positioned on or moved across the 
pad. Such a pad shall be designed and maintained to 
contain any product spills or equipment leaks, container or 
equipment rinse or wash-water, and rain-water that may fall 
on the pad. Surface water shall not be allowed to either 
flow over or from the pad, which means the pad must be 
self-contained. The pad shall be sloped to facilitate 
material ~emoval. An unroofed pad shall be of sufficient 
capacity to contain at a minimum 110% of the capacity of 
the largest pesticide container or application equipment on 
the pad. A pad that is covered by a roof of sufficient

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size to completely exclude precipitation from contact with 
the pad shall have a minimum containment capacity of 100% 
of the capacity of the largest pesticide container or 
application equipment on the pad. Containment capacities 
as described above shall be maintained at all times. The 
above-specified minimum containment capacities do not apply 
to vehicles when delivering pesticide shipments to the 
mixing/loading site. 
States may have in effect additional requirements regarding 
well-head setbacks and operational area containment. 
This product may not be mixed or loaded within 50 feet of 
intermittent streams and rivers, natural or impounded lakes 
and reservoirs. This product may not be applied aerially 
or by ground within 66 feet of the points where field sur­
face water runoff enters perennial or intermittent streams 
and rivers or within 200 feet around natural or impounded 
lakes and reservoirs. If this product if applied to highly 
erodible land, the 66-foot buffer or setback from runoff 
entry points must be planted to crop, seeded with grass or 
other suitable crop. 
This pesticide is toxic to aquatic invertebrat~s. For 
terrestrial uses, do not apply directly to water, or to 
areas where surface water is present, or to intertidal 
areas below the mean high water mark. Do not apply when 
weather conditions favor drift from treated areas. Runoff 
and drift from treated areas may be hazardous to aquatic 
organisms in neighboring areas. Do not contaminate water 
when disposing of equipment wash waters. 
AAtrex® Nine-O®, Caliber 90®, Concep®, Dual® and Princep® 
trademarks of Ciba-Geigy Corporation 
Bexton® trademark of DowElanco Company 
Compex® trademark of KALO Agricultural Chemicals, Inc. 
Gramoxone® and Sutan+® trademarks of ICI Americas 
Lasso®, Ramrod® and Roundup® trademarks of Monsanto Company 
Unite® trademark of Hopkins Agricultural Chemical Company 
X-77® trademark of Chevron Chemical Company 
C1993 Ciba-Geigy Corporation

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Ciba Plant Protection 
Ciba-Geigy Corporation 
Greensboro, North Carolina 27419 
CGA 7L91 
December 7, 1983 
Revised February 2, 1984 
Revised June 12, 1984 
Revised March 13, 1985 
Revised September 3, 1985 
Revised August 5, 1986 
Revised June 12, 1987 
Revised July 20, 1988 
Revised October 25, 1989 
(delete rangeland, proso 
millet and Igran tank mixes) 
Revised January 25, 1990 
(delete pineapples, add Atraz. 
Exp. red. - measures) 
Revised May 23, 1992 
(SW mitigation, measures -
delete IWC) 
Revised June 18, 1993 
(exception to 50 ft. 
setback) 
Revised November 15, 1993 
(WPS) 
[GANNONC.LABELA]ATX80WF7 - 11/15/93