crop-chem-docs/corpus/epa_ppls/352-490.md

# ATRAZINE 4L HERBICIDE

- EPA Reg No: **352-490**
- Registrant: CORTEVA AGRISCIENCE, LLC
- Signal word: Caution
- Active ingredients: Atrazine (43%)
- Label accepted: 1990-07-23
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000352-00490-19900723.pdf

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DU PONT A TRAZINE 4L 
HERBICIDE 
RESTRICTED USE PESTICIDE (GROUND WATER CONCERNS) FOR RETAIL SALE 
TO AND USE ONLY BY CERTIFIED APPLICATORS OR PERSONS UNDER THEIR DIRECT 
SUPERVISION, AND ONLY FOR 1lfOSE USES COVERED BY nm CERIIFIED 
APPLICATOR'S CER11FICATION. SEE PRECAUTIONARY STATEMENTS FOR REASONS 
THIS PRODUCT IS Q..ASSIFIED RESTRlcreD USE. 
THIS PRODUCT IS A RESTRlCI'ED USE HERBICIDE DUE TO GROUND WAlER 
CONCERNS. USERS MUST READ AND FOLLOW AlL PRECAUTIONARY STATEMENTS 
AND INSTRUCTIONS FOR USE IN ORDER TO MINIMIZE POTENTIAL FOR A1RAZ1NE 
TO REACH GROUND WAreR. 
PACKAGE SIZES 
2 - 2 1{l. GALLON JUGS 
BULK 
Contains 4 Ibs. Active Ingredient per Gallon. 
ACTIVE INGREDIENTS 
A truine (2-chloro-4-ethy I am i no-6-i sO\lropy I am ino-s-triazine) 
Related compounds 
BY WEIGHT 
40.8% 
2.2% 
570% 
100.0% 
INERT INGREDIENTS ................................... , ......................... , 
1UrAL 
EPA Reg. No. 352-490 EPA EST. NO. 352-IL-1 ACCEPTED 
KEEP OUT OF REACH OF CHILDREN ...Ill t 3 ;920 
CAUTION 
STATEMENT OF PRACTICAL TREATMENT 
IF ';;W ALLOWED. drink one or two glasses of water immediately and induce 
vomiting by sticking finger down back of throal. 
IN CASE OF CONTACT, immediately flush eyes or skin with plenty of water. 
Get Medical attention if irritation persists. 
PRECAUTIONARY STATEMENTS 
HAZARD TO HUMANS AND DOMESTIC ANIMALS 
C A UT ION - May be fatal if swallowed. Harmful if absorbed through iJle: sLin. 
Avoid breathing vapors or spray mist. Avoid contact with eyes, skin or t1othiJlr. 
Wash thoroughly after handling. Remove and wash contaminated clolnlDC before ICUSC. 
For medica. emuaendu Involving this product, 
call toll free 1-800-441-3637. 
PAGE 1

DU PONT ATRAZINE 4L 
HERBICIDE 
Do not apply this product in such a manner as to direclly or through drift expuse 
workers or other persons. The area being treated must be vacated by C'lprotected 
persons. Users are required to wear long sleeve shirts and long pants or equivalent, 
chemical resistant gloves, and boots (waterproofed). In addition, persons involved in 
mixing/loading operations are required to use chemical resistant rubber or neoprene 
gloves and a face shield or goggles. 
ENVIRONMENTAL HAZARDS 
P,) Ie, /-2 
Atrazine can travel (seep or leach) through soil and can enter groundwater which may 
be used as drinking water. Atrazine has been found in groundwater. Ground water 
contamination may be reduced by diking and flooring of permanent liquid bulk storage 
si:es with an impermeable material. Users are advised nol to apply Atrazine to sand and 
loamy sand soils where the water table (groundwater) is close to the surface and where 
the soils are very permeable. Your local agriculture agencies can provide further 
informalion on the Iype of soil in your area and the 10catiGil of groundwater. 
Atrazine is toxic to aquatic invertebrates. Do not apply direclly to water or wetlands. Do 
not apply when weather conditions favor drift from treated areas. Runoff and drift from 
treated areas may be hazardous to aquatic organislTls in neighboring areas. Do not 
contaminate water when disposing of equipment wash waters. In case of significant spill, 
call CHEMTREC (800) 424-9300. 
DIRECTIONS FOR USE It is a violation of Federal law to use this product in a manner 
inconsistent with its labeling. 
REENTRY STATEMENTS Do not enter treated areas" ithout protective clothing until 
sprays have dried. Because certain states may reo Jire more restrictive reentry 
intervals for various crops treated in this product, .;onsult your State Departrr Jnt of 
Agriculture for further information. 
Written or oral warnings must be given te workers who are expected to be in a treated 
area or in an area about to be treated with this product. (Indicate specific oral warnings 
which inform workers of areas or fields Ihat may not be entered without specific 
protective clothing, period of time field must be vacated and appropriate actions to take 
in case of Accidental exposure.) When oral warning!; are given warnings shall be given 
in a language customarily understood by workers. Oral warnings must be given if 
there is reason to believe that written warnings c:;nnot be understood by workers. 
Written warnings must include the following information: ·CAUTION Area treated with 
Atrazinc Herbicide on (date of application). Do not enter, without appropriate protective 
clothing unli: ~Pfays have dried. (Insert here actions to take in case of accidental 
exposure. See STATEMENT OF PRACTICAL TREATMENT for details.)" 
PAGE 2

GZNKJtAL DII'OIQIA'l'ION 
Atrazine 4L Herbicide controls many annual broadleaf and grass weeds in corn 
and sorghum including barnyardgrass, witchgrass, (Panicum capillare), yello~ 
foxtail, green foxtail, wild oats, large (hairy) crabgrass, giant foxtail, 
velvetleaf, morningglory, lambsquarters, pigweed, ragweed, nightshade, 
purslane, and mustard. Atrazine 4L may be applied before or after weeds 
emerge. 
Apply at the rates given under each crop before or after weeds emerge. Use 
lower rates on light soils and low organic matter soils. Use higher rates on 
heavy soils and high organic matter soils. 
Atrazine 4L acts mainly th.~ough root absorption so rainfall or irrigation is 
needed to m~ve it into the root zone. Should weeds develop, a shallow 
cultivation or rotary hoeing will generally result in better weed control. 
Do not apply this product through any type of irrigation system. 
Postemergence application to corn and sorghum must be made before corn and 
sorghum reaches 12 inches in height. 
The maximum application rate for corn and sorghum is 3 Ibs. a.i. per acre 
per calander year. Applications for quackgrass suppression in corn and 
sorghum are restricted to a spring appli~ation only. No fall applications 
are permitted. 
Application rates to non crop land for industrial weed control cannot exceed 
a maximum of 10 Ibs. active ingredient per acre per calendar year. 
Avoid using Atrazine 4L near adjacent desirable trees, shrubs, or plants or 
injury may occur. 
Atrazine 4L is non-flammable. 
APPLICATION PROCEDURES 
This product may not be mixed/loaded, or used within 50 feet of all wells 
included aDandoned wells, drainage well~, and sink holes. 
General: Atrazine 4L, a liquid formulation, should be mixed with water or 
liquid fertilizer and applied as a spray. Pour into the tank during or after 
filling. Hydraulic (jet) or mechanical agitation is recommended during 
mixing and application to keep the material in susp£nsion. All return lines 
to the tank must discharge below liquid level and agitation should not be so 
violent as to cause air bubbles to form in the liquid. Wash sprayer 
thoroughly after use. 
Ground Application: Apply Atrazine 4L i~ 5-40 gallons of water pe~ a~rc to 
assure even coverage unless otherwise specified. Fer uniform distributi~n, 
use 80 degree flat fan-type nozzles. Screens in nozzles, as well as ~ho~e ir 
suction and in-line strainers, should be no finer than 50-mesh. Use a 
minimum of 10 gal. of water per acre for all postemergence applical':'v;lJ 
combined with oil or surfactant. 
PAGE 3 DO PON'l' A'l'RAZIJa: 4L

Use a suitable pump with capacity to deliver (1) the necessary volume to the 
no%zles at 35-40 p.s.i. and (2) an additional volume to maintain the mixture 
in suspension in the spray tank. 
For band applications, calculate amount to be applied per acre as follows: 
Band Width in inches 
x 
Row Width in inches 
Broadcast 
rate per acre 
PAGE 4 
Amount needed 
- per aCre of field 
DO .0lI'l A'l'RAZ DIIC 4L

Aerial Application: Use only where broadcast applications are specified. 
Apply a minimum of 1 gallon of water for each 2 pints of Atrazine 4L to be 
applied per acre. For postemergence treatments, apply recommended rate in a 
minimum of 2 gal. water per acre. DO not apply where unifortt. coverage cannot 
be obtained or where excessive spray drift may occur. Avoid application 
directly to animals or humans. Flagmen or loaders should avoid inhalation of 
spray mist or contact with skin and should wash thoroughly before eating and 
at the end of each day's operation. 
Application in Liquid rertil.iw:er: Nitrogen solutions or cOmr" 'O'-.e liquid 
fertilizers may replace all or part of the water as a ca.'_-,-e.:- for 
preemergence and preplant applications. Mix as described under Application 
Procedures. Do not apply after corn or sorghum emerges as there is danger of 
liquid fertilizers causing crop injury. 
Check to ensure the compatibility of Atrazine 4L with liquid fertilizer 
prior to mixing in the spray tank. A convenient method for testing the 
compatibility of Atrazine 4L with liquid fertilizer follows: 
A. Add one pint of liquid fertilizer or other carrier to be used to two 
quart jars. Mark one quart jar ·with" and the other jar "without." 
B. To the jar marked "with" add 1/4 teaspoon of a suitable compatibility 
agent, Shake gently for 5 to 10 seconds to mix. (1/4 teaspoon/pint ~ 
2 pints/lOO gallons.) 
C. To each jar mix the number of teaspoons of herbicide shown on the 
following chart times the number of qts .• .>er acre of Atrazine 4L to be 
applied corresponding to the gallons per acre of liquid fertilizer to 
be used. (For example, if 4 qts. per acre of Atrazine 4L are to be 
applied in 20 gallons of liquid fertilizer per acre, then 4 X 1-1/4 
teaspoons, or 5 teaspoons should be mixed with one pint of liquid 
fertilizer.) If more than one herbicide is used, add them separately; 
wettable powders first, flowables second and emulsifiable concentrates 
last. Shake gently for 5 to 10 seconds after each addition. 
D. Let stand one-half hour and make obsetvations. If any separation, 
agglomeration or orecipitation has occu.red, again shake the jar 10 to 
15 seconds. 
1. If mixtures appear to be compatible in both jars, the herbicide(s) 
can probably be used without a compatibility a~ent. 
2. If the mixture in the jar marked ·with" is compatible, but the one 
in the jar marked "without" is incompatible, a compatibility agent 
should be used. 
3. If both mixtures are incompatible, the liquid ferlil.izer and the 
herbicide(s) should not be used in the same spray tank. If a test 
such as outlined indicates that components of a proposed mix are 
compatible, materials to be combined in the spray tank should 
still be added in the sequence according to directions prescribed 
on the label of the herbicides or pesticides involved. 
PAGE 5 
fl, ~~_.n ,

JAR TI:ST FOR ATAAZIHI: 4L OJIIPATIBILI'l'Y WITS Llaom nRTILUI:R 
Gallons Liquid 
Fertilizer per acre 10 15 2() 25 30 40 
Teaspoons of 
Atrazine 4L/Pint of 2-1/2 1-1/2 1-1/4 1 3/4 1/2 
Fert.ilizer 
Application in Water plus z.ul.i~iable Oil or Oil Concentrate 
The addition of oil to Atrazine 4L in water sprays may speed the activity of 
Atrazine 4L and provide quicker kill of weeds. However, under certain 
conditions, the use of oil may serious~y damage Corn or sorgh~. To minimize 
the possibility of damage, follow the directions, procedures _nd precautiors 
given below. 
Use a crop oil containing at least 1\ suitable emulsifier or a crop oil 
concentrate containing not more than 20\ emulsifier or surfactant blend 
designated for use with Atrazine. Emulsifiable oil or oil concentrate 
contaminated with water or other materials can cause compatibility problems 
and/or crop injury. 
Mixing Procedures--all uses: 
(1) Thoroughly clean sprayer prior to use. Do not use sprayer contaminated 
with 2,4-0 or other materials as crop damage or sprayer clogging may 
result. 
(2) Fill spray tank with water, allowing for the addition of the 
Atra:zine 4L. 
(3) With the agitation system in operation, add the Jtrazine 4L. 
(4) Add the emulsifiable oil or oil concentrate last. 
(5) Empty the tank as completely as possible before refilling to prevent a 
buildup of oil in the tank. Keep the agitation syste~ in operation to 
avoid a separation of the oil from the water in the spray mixture still 
remaining in the tank. 
(6) If an oil film starts to build up in the tank, drain the tank and clean 
out with a strong detergent solution or solvent. 
(7) Clean the sprayer thoroughly immediat~::'y after use by flushing tr.e 
system with water containing a detergent. 
(8) All return lines to the tank must discharge below liquid level. 
PAGE 6 DO POlft ATRASDII: 4L

Precautiona for ApplicatioDa witb s.ulaifiabl. Oil 
or Oil Concentrat. in Wat.r: 
(1) Do not use oil in Atrazine 4L sprays when corn Or sorghum is under 
stress from prolonged cold, wet weather, poor fertility, or other 
factors Or when corn or sorghum is wet and succulent from recent 
rainfall as crop injury may occur. 
(2) Do not use oils in sprays when treating inbred lines Or any breeding 
stock as injury may occur. 
(3) Adding other insecticides, herbicides, liquid fertilizers, or other 
materials is not recommended because they may cause compatibility 
problems or crop injury. 
(4) Store and handle emulsifiable oil or oil concentrate carefully. Oil 
contaminated with even a small amount of water may not emulsify properly 
when added to the tank. 
(5) Do not make more than one application per season except as recommended 
for control of yellow nutsedge and Canada thistle on this label. 
CORN 
Atrazine 4L may be applied either before planting, at planting or after 
planting at the rate indicated below. 
Preplant 
Broadcast in the spring after plowing at the rate indicated in Table 1. 
Apply before, during or after final seedbed preparation. If soil is tilled 
or worked after application, avoid deep incorporation of Atrazine 4L. Best 
results have been obtained when Atrazine 4L is applied within two weeks 
prior to planting. 
Pr ....... rg.nc. 
Apply during Or shortly after planting prior to weed emergence at the ra~e 
indicated in Table 1. 
POllt_rgencft 
Apply before weeds exceed 1.5 inches in height at the rate indicated in 
Table 1 but before corn reaches 12 inches ir. h2ight. 
PAGE 7 DV POtI'l' ATRAZDIK I,L

!'ABLE 1 
1IItOADLKU' AND GRASS R&D COIft'ROL IN CORN* 
Soil 'l'exture 
I 
I 
Broadca.t Rat. ..10 Acn o~ A'l'RAZID CL 
I 
COar •• : Sands, loamy sands, 
and sandy loams 
~ma: Silt and clay loams that 
are low i~ organic matter 
Fine: Silt and clay loams 
with medium to high 
organic matter and clays 
•• at., ..acb, aDd high org_ic cl.ay. 
(apply postemergence only) 
4 pints 
4.75 pints 
6 pints 
6 pints 
* Broadleaf weed control (eastern CO, western KS, western HE, NH, OK 
Panhandle, west TX, and eastern WY). On sand, loamy sand, sandy loam, mild 
to strongly alkaline soil and all recently leveled soil apply 2.4 pt. per 
acre, either preplant or preemergence. Controls many broadleaf weeds 
including pigweed, lambsquarters, nightshade, purslane, and kochia. On other 
soil types in these areas, apply rate in Table 1 for broadleaf and grass 
control . 
• ostemergenc. with Emul.i~iabl. Oil or Oil Concentrat. in .ater 
Broadl..a~ and Gra.. Control. 
Ground Application 
Broadcast 4 pts. of Atrazine 4L and 1 gal. of emulsifiable oil or 1 qt. 
of oil concentrate in 20-40 gals. of water per acre after emergence but 
before weeds reach 1.5 inches in height and before corn reaches 12 inches 
in height. 
Aerial. Application 
Broadcast 4 pts. of Atrazine 4L and 0.5 gal. of emulsifiable oil in no 
less than 5 gals. of water per acre after weed emergence but before weeds 
reach 1.5 inches in height and before Corn reaches 12 inches in height. 
PAGE 8

Broad1 •• t CODtro~ 
Broadcast 2.4 pt. per acre for contro~ of broadleaf weeds, such as annual 
morningglory, cocklebur, lambsquarters, mustards, pigweed, ragweed, 
smartweed, and wild buckwheat. Add emulsifiable oil at the rate of 1 gal. 
per acre for ground application and O.S gal. per acre for aerial 
applications. Apply before pigweed and lambsquarters reach 6 inches in 
height, before all other weeds reach 4 inches in height and before corn 
reaches 12 inches in height. A cultivation may be necessary if all weeds are 
not con~rolled or if weeds regrow. 
Prob~ .. we.da Suppr ••• ioD 
Atrazine 4L will suppress yellow nutsedge (Cyperus esculentus) and Canada 
thistle (Cirsium arvense) when applied according to directions. For best 
results, apply each year until yellow nutsedge or Canada thistle is 
eliminated or reaches a level of infestation where neither weed is a 
problem. If yellow nutsedge Or Canada thistle regrow following last 
application, cultivate once. When Atrazine 4L is applied postemergence to 
the weeds, add 1 gal. of emulsifiable crop oil or 1 qt. of oil concentrate 
per acre. 
Six alternative methods of use for control of yellow nutsedge and Canada 
thistle are listed below in order of preference. If other weed species, such 
as annual grasses, are also expected, use alternative 2, 3, S, or 6. 
1. Broadcast 3 pt. plus 1 gal. of emulsifiable oil or 1 qt. of oil 
concentrate per acre after crop and yellow nutsedge or Canada thistle 
emerge, but before yellow nutsedge reaches a height of 3 inches or 
Canada thistle reaches a height of 6 inches. Repeat application before 
corn reaches 12 inches in height. 
2. Broadcast 3 pt. per aCre preplant incorporated. Follow with an 
application of 3 pt. plus 1 gal. of emulsifiable oil or 1 qt. of oil 
concentrate per acre, after corn and weeds emerge, but before yellow 
nutsedge reaches a height of 3 inches (yellow nutsedge control only) 
and before corn reaches 12 inches in height. 
3. Broadcast 3 pt. per acre during or shortly after planting, but prior to 
crop Or weed emergence. Follow with an application of 3 pt. plus 1 gal. 
of emulsifiable oil or 1 qt. of oil concentrate per acre, after corn 
and weeds emerge, but before yellow nutsedge reaches a height of 3 
inches or Canada thistle reaches a height of 6 inches and before corn 
reaches 12 inches in height. 
4. Broadcast 6 pt. plus 1 gal. of emulsifiable oil or 1 qt. of oil 
concentrate per acre after crop emerges, but before corn exceeds 12 
inches. Apply after yellow nutsedge and Canada thistle emerge, but 
before yellow nutsedge is 3 inches tall or ~anada thistle is 6 inches 
tall. 
S. Broadca3t 6 pt. per acre preplant incorporated (yellow nutsedge control 
only> . 
6. Broadcast 6 pt. per acre during or shortly after planting, but prior to 
crop Or weed emergence (yellow nutsedge control only). 
MOTE: Do not use emulsifiable oil or oil concentrate for post-emergence 
applications when corn is wet or under stress. See wPrecautions for 
Applications with Emulsifiable Oil or Oil Concentrate in Water W for 
additional directions. 
PAGE 9 DO PONT ATRAZINE tL 
.. )' (,. 7·2 'J \. ,. , ,

Quackgraa. Suppze •• ion on LaDd GoiDg Into CorD .~ion 
Split application: Broadcast 3 pt. per acre in the early spring. Plow 1-3 
weeks later. Broadcast a second application at 3 pt. per acre before, during 
or after plan~ing but before weeds are 1.S inches high and before corn 
exceeds 12 inches in height. This spltt application will suppress quackgrass 
and control many annual broadleaf and grass weeds. 
Single application: Broadcast 6 pt. per acre in the early spring. Plow 1-3 
weeks later. 
PAGE 10

'fAHJt MIXTURl:S ON COM 
"DUAL" 811: 
Use as tank mixture for control of certain broadleaf and grass weeds in 
corn. Refer to ftDual ft BE label for all directions, weeds controlled, 
precautions and limitations. 
"LASSO" 01: "LASSO" KC (alachlor) 
Use as tank mixture for control of many annual broadleaf and grass weeds in 
corn (field, hybrid seed, silage, sweet, popcorn) including barnyardgrass, 
carpet weed, crabqrass, fall panicum, Florida pus ley, foxtails (giant, green, 
yellow), goosegrass, jimsonweed, kochia, lambsquarters, mustard, nightshade, 
pigweed, purslane, ragweed, siqnalgrass (Brachiaria), smart weed, and 
witchgrass. This tank mix will reduce competition from the hard to control 
annual weeds--annual morningglory, cocklebur, and velvetleaf (buttonweed). 
For preemergence or early postemergence broadcast application, use the rates 
in Table 2. Apply tauk mixture any time frOl .. :iJmlediately after planting 
until weeds reach 2-leaf state and corn in no more than 5 inches tall. On 
sweet corn, apply before crop and weeds emerge. Application after the 2-leaf 
stage will not give satjsfactory control. with postemergence application, 
occasional COrn leaf burn should not affect growth or yield. If applied with 
liquid fertilizers, spray befoz"e crop emerges. 
For preplant incorporated applications, use 0.4 pt. more of Atrazine 4L plus 
0.5 qt. of ftLasso" per acre than indicated in Table 2. Use no more than 3.2 
pts. of Atrazine 4L plus 2.5 qt. of ftLasso ft per acre. Broadcast within 7 
days before planting and incorporate 2 inches deep. 
Apply tank mixture in a minimum of 20 gal. of water per acre. Liquid 
fertilizer may replace all or part of the water. Add Atrazine 4L to spray 
tank, thoroughly mix with water, then add "Lasso". Follow mixing procedures 
in the section ftApplication Procedures" of this label. 
PAGE 11

DU PONT ATRAZINE 4L 
HERBICIDE 
TABLE 2 
TANK MIXTURES WITH "LASSO" ON CORN 
Sol/ Texture Broadcast Rate Per Acre 
Percent Organic Matter In Soli 
Pints of ATRAZINE 4L + Quarts of "LASSO" 
Coarse: Sand, loamy sand, sandy loam 
Less than 3% 
3% or more 
Medh,m: Loam, sill loam, silt 
Less than 3% 
3% or more 
Fir.e: Silty clay Loam, sandy clay 
loam, silty clay, sandy 
clay, clay loam, clay 
Less than 3% 
3% or more 
2 + 1.5 
2 + 1.5 
2-2.4 + 1.75 
2.4-2.B + 2 
2.4-3.2 + 2.25 
2.4-3.2 + 2.5 
Refer to "Lasso' label for information concerning applications and other directions. 
limitation~. and cautions. 
PRINCEP" BOW or ·PRINCEp· 4L (Simazine) Use as a tank mixture for control of many 
annual weeds including carpetweed, crabgrass. fall panicum, foxtail, lambsqu::.rters, 
morningglory, pigweed, ragweed, and velvetleaf. Apply before planting. at planting, or 
after planting, but before crop and weeds emerge, at rates in Table 3. Use 1:1 ratio for 
control of above weeds. Use 1 :2 ratio for expected heavy infestations of crabgrass and 
fall panicum. Apply in a minimum of 20 gal. water per acre. Cultivate shallowly if weeds 
develop. 
Preplant Apply in spring during or aiter final seedbed preparation. If soil is tilled or 
worked after application, avoid deep incorporation. For best results, apply within two 
weeks before planting. 
Preemergence 
Apply during or shortly after planting, but before crop and weeds emerge. 
Refer to Corn sections of this label and to "Princep" BOW or ·Princep· 4L 
label for further directions. limitations, and cautions. 
Page 12

~ABLI: 3 
~»l1t NIXTtJN:S .I~B -PIUIICZP - 0If COItJf 
Soil ~esture 
I Percent 
I 
Broadcaat Rat. Per Acre 
Organic "-tter lA Soil 
I 
I I 
Pinta of ATRAZ~ tL + Pounda of -PaINCEP- 80W or 
"lAta of -"a.IHCU- tL 
I I 
eoarae: Sand, loamy sand, sandy 
1:1 Ratio. 
loam 
IIiIc11U111: Loam, 
loam, 
silty 
silty 
1:2 Ratio •• 
silt loam, silt, clay 
sandy clay loam, 
clay loam, sandy clay 
clay with low orqanic 
1:1 Ratio. 
1:2 Ratio •• 
!'lne: Loam, silt loam, clay loam, 
sandy clay loam, silty clay 
2 
1.32 
or 
matter 
2.4 
1.6 
loam, sandy clay, or silty clay 
with medium to hiqh orqanic matter 
and clay (includinq dark prairie 
soils of the Corn Belt) 
1:1 Ratio. 3 
1:2 Ratio •• 1. 92 
*For control of above weeds. 
I 
I 
+ 
+ 
+ 
+ 
1.25 or 2 
1. 67 or 2.67 
1. 5 or 2.4 
2 or 3.2 
+ 1.B or 3 
+ 2.4 or 3.84 
**For control of expected heavy infestations of crabqrass and fall panicum. 
PROPACHLOR 65Wl' (.zcapt lA California) 
Use a tank mixt'lre for control of many annual broadleaf and qrass weeds in 
corn (field, hybrid seed, silaq~ and sweet Corn only), includinq annual 
morningqlory, annual ryeqrass, ba.:.o~·!'rdqrass (waterqrass), buttonweed 
(velvetleaf), carpetweed, cocklebur, crabqrass, fall panicum, Florida 
pusley, qiant foxtail, qreen foxtail, yellow foxtail, qooseqrass, qroundsel, 
jimsonweed, lambsquarters, mustard, niqhtshade, piqweed J purslane, raqweed, 
smartweed and sunflower. 
Broadcast 2.1-3.2 pt. of Atrazine 4L plus 3.8-6 lb. of propa~hlor 65WP per 
acre on soil surface any time from plantinq until broadleaf and qrass weeds 
reach th~ 2-1~af staqe but before corn reaches 12 inches in heiqht. Use 
lower rates on coarse-textured soil low in or~anic matter. Use hiqher rates 
on fine-textured soil hiqh in orqanic matter. 
Use a minig.am of 2.8 pt. per acre of Atrazine 4L in tank mixture for better 
control of annual morninqqlory, buttonweed (velvetleaf), cocklebur, and 
sunflower. 
PAGE 13 DO POH'l' ATIIAZINE tL 
p; \~ .n

Apply in a minimum of 20 gal. per acre. Non-pressure fluid fertilizer may 
replace all or part of the water uaed as a carrier for application~ before 
crop and weeds emerge. Add Atrazine 4L to spray tank and thoroughly mix with 
water. Then, cut the propachlor 65WP bag and fill with water to fill line. 
Grasp neck of bag firmly, shake vigorously, and add contents to spray tank. 
Refer to propachlor 65WP label for further directions, limitations, and 
cautions. 
PARAQUAT 
For control of ezisting vegetation and residual control where corn will be 
planted directly into cover crop, established sod, or in previous crop 
residues, broadcast 4-D pt. of Atrazine 4L and 1-2 pts.fA (2 lbs.fgal.) or 
1.3-2.7 pts.fA (1.5 Ibs.fgal.) paraquat in 20-60 gal. of water per acre. Add 
Atrazine 4L to water in spray tank, agitate until thoroughly mixed with 
water, and then add paraquat and surfactant. 
"PRINCEP" 80W plull Paraquat 
Use as a tank mixture with "Princep" 80W and paraquat for kill of existing 
vegetation and residual weed control where corn will be planeed directly 
into a cover crop, es~ablished sod, or in previous crop residues. Add 
Atrazin'!! 4L and "Prilacep" !lOW to water in spray tank, agitating until 
thoroughly mixed. Then add paraquat and a nonionic surfactant such as 
"Ortho" X-77. Continue agitation during application. Apply 2-4 pt. of 
Atrazine 4L plus 1.25-2.5 l~. uf "Princep" 80W plus 1-2 pts.fA (2 lbs.fgal.) 
Or 1.3-2.7 pts.fA (1.5 lbs.fgal.) paraquat in 20-60 gal. of water per 
sprayed acre within 3 weeks before, during, or after plan~ing, but before 
corn crop emerges. Add 8 fl. oz. of a nonionic surfactant, such as "Ortho" 
X-77, per 100 gal. diluted spray. Use lower rates of Atraz~ne 4L and of 
"Princep" SOW on coarse soil, and higher rates on fine-textured soil. Use 
the 2 pts.fA (2 lbs.fgal.) or 2.7 pts.fA(1.5 lbs.)gal.) rate of paraquat 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" BOW, and paraquat. 
PAGE 14

1'IIKCAU'S'IOtIS FOR ALL Ul'LlCA'fIOIIS 'fO CONI 
(1) Do not apply more than 6 pts. Atrazine 4L to corn in anyone year. 
(2) Land treated with Atrazine 4L should not be planted to an~ crop except 
corn or sorghum until the following year or injury may occ~r. 
(3) Injury may occur in any crop other t~an corn Or sorghum planted the year 
following treatment. 
(4) Following harvest of a treated crop, plow (moldboard or disk-plow) and 
thoroughly till the soil in the fall or spring to minimize possible 
injury to rotational spring-seeded crops, regardless of the rate used. 
(5) To avoid the possibility of injury to following fall or spring seeded 
crops, the use of "BLADEX" Herbicide in place of Atrazine 4L is 
recommend£d. Follow directions on the "BLADEX" label. 
(6) The use of Atrazine 4L on land that is to be rot~ted the following year 
to soybeans tha~ will be treated with metribuzin ("SENCOR" or "LEXONE") 
may increase the chance of injury. 
(7) If Atrazine 4L is applied after June 10, do not rotate with crops other 
tha~ corn Or sorghum the next year or injury may occur. 
(8) In the High Plains and Intermountain areas of the West where rainfall is 
sparse and p.rratic or where irrigation is required, use Atrazine 4L to 
control weeds in corn or sorghum only where corn or sorghum is to follow 
corn or a crop of untreated corn or sorghum is to precede other 
rotational cro~~. 
(9) DO not gra~e treated area or feed rreated forage to livestock for 21 
days following application. 
SORGHUH AND SORGHUM-SUDAN IIYBP.IDS (Grdn and Farag_ 'fypes) 
Apply before planting, at planting, v~ after planting. See Corn s~ction for 
weeds controlled. 
Preplant (Broadle.! .ad Gra.. Control) 
Broadcast in spring after plowing at rate in Table 4. 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 before planting. 
l'reemergence (BroadIeaf and Gra~. Control) 
Apply during Or shortly after planting before weed or crop emergence, at 
rate in Table 4. 
In c~se of planting failure, sorghum INiy ~ replanted. Do not make a second 
broadCast application, as injury lnay occur. tf originally applied in a band 
and sorghum is replanted in untreated row middles, Atrazine 4L may be 
a~plied in a band to the second planting. 
PAGE 15 DO PON'l' A'fRAIDII: 4L 
'\:: 1.'2.. 
\' l

Pr .... rq.nc. Bro.dl4a~ Contro~ in FUrrow Irrigated &edded SoEghua 
(AZ and CA on~YI : 
For preemergence control of many broadleaf weeds, includit:g groundcherry, 
larnbsquarters, morningglory, mustard, pigweed. and purslane. broadcast 
1.6-2.4 pt. per acre. Apply after bed preparation, during or after planting. 
but before sorghum and weeds emerge and before the first furrow irriga~ion. 
Follow with several regul~r irrigations to thoroughly wet all soil. Use 
lower rate on coarse-textured soil and soil low in organic matter; use 
higher rate on fine-textured soil and soil high in organic matter. 
Pr.cautions for Pre ... rqence App~ication to FUrrow Irrigated pedded 
SorghUD Grown in AS and CA 
To avoid possible sorghum injury, do not use on sand or loamy sand soil or 
on sorghum planted in the furrow. Applications to sorghum growing on alkali 
soils or where cuts, fills. or erosions have exposed calcareous or alkali 
subsoils may cause crop injury. Do not replant sorghum for 8 months 
following application. Corn may be planted immediately. 
TABLE 4 
PREPLAN'l' AND PREEMERGENCI: BROADL&U' AND GRASS wu:o CON'l'ROL IN SORGHUM· 
Soil Tenure 
I Percent 
I 
Broadcaat Rate Per Acre 
Organic Hatter in Soi~ 
I 
Coarse: Sand, loamy sand. sandy 
loam, sandy clay loam 
Any Level 
Medium and Fine: Silt loam, 
clay lo~.n, clay 
Less thar. 1 % 
1-1. 5' 
More than 1.5% 
Pints of A'1'RAZINE 4L 
Do not use (except for preemergent 
use on bedded sorghum in AZ and CA 
as indicated below' 
DO not use (except for preemergent 
use on bedded sorghum in AZ and CA 
as indicated below' 
3.2-4 
4-4.75 
* Do not apply preplant in AL, AR, FL. GA, LA, MS. NC, HM. SC, TN, or TX. 
Do not apply preemergence in HM, OK, or TX, except in northeast OK and the 
TX Gulf Coast. 
PAGE 16

'lAllL& 5 
POS~ UOADLEU' AND GRASS RJ:D CQII'lIlOL DI 1OWiR .... 
Soi 1 'l'estun 
I 
Broadcaat. ttat.e per acre 
Mini=a So.:ghua Bei~ht at. 'lreat.ult. 
I I piAt. of A'lItAZDm CL 
I I I 
Sand or loa.y .and Do no':. use Do not use 
Sandy 10Hl See direction~ for postemergence broadleaf weed 
control below 
Silt 10.. to aandy clay loa. 
Completely emerged 
Olton and Pul1Dan Clay aoil 
At least 6 inc.hes 
Silty clay loam and finer testured aoil 
Completely emerged 
postemergenc. (Broadleaf and Gra.. Control) 
4-4.75 
6 
Apply at rate in Table 5 before weeds exceed 1.5 inches in height and before 
sorghum reaches 12 inr.hes in height. 
Posteme~.nce Broadl.af Control with ~laifiabl. Oil 
or Oil Concentrate in Water 
Broadcas~ 2.4 pt. per acre for control of many broadleaf weeds. including 
annual morningglory. cocklebur. lambsquarters. mustard. pigweed. ragweed, 
smartweed. and wild buckwheat. Apply before pigweed and lambsquarters reach 
6 inches in height and before all other weeds reach 4 inches in height. In 
CO. Western KS, HM, 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 sorghum reaches 12 inches in height Add 
emulsifiable oil at 1 gal. per acre for ground application and 0.5 gal. per 
acre far aerial applications. A cultivation may be necessary if all weeds 
are not controlled or if weeds regrow. 
Precautiona for Applications with Smulaifiable Oil 
or Oil Concentrate iA Water 
See "Precautions for Applications with Emulsifiable oil or Oil Concentrate 
in Water" in Application Procedures section uf this label. 
Poateme~. Broadle~ Control with Surfactant. 
(CO, Western KS, HM, OK, TX and Desert Regions of AZ and CA only) Broadcast 
2.4 pt. plus 0.75-1.5 pt. of surfactant per acre when sorghum is at least 5 
inches but less than 12 inches in height, and before weeds reach 1.S inches 
in height. Apply only on sandy loam and finer textured soil. 
PAGE 17

Precautioaa ~or A1~ App~icatioaa to SOE9bua 
(1) Heavy rain immediately following application tends to cause excessive 
concentrations of herbicide in seed furrow, resulting in possible crop 
injury. Do not apply to furrow-planted sorghum until furrows are leveled 
(plowed-in). Level deep planter marks or seed furrows before 
application. 
(2) Application to sorghum growing under stress caused by minor element 
deficiency or to sorghum growing on highly calcareous soil may result in 
crnp injury. 
(3) Inj~ry may occur in any crop other than Corn or sorghum planted the year 
followi~g treat~nt. 
(4) Following harvest, plow (moldboard or disk-plow) and thoroughly till 
soil in fall or spring to minimize possible injury to rotational 
spring-seeded cropS, regardless of rate used. 
(5) Injury may occur if both this herbicide, preplant or preemergence, and 
an at-planting systemic insecticide are used. 
NOTE: Do not graze or feed forage from treated areas for 21 days following 
application 
Add1tiona~ Precautions 
See "Precautions for All Applications to Corn" in Corn section of tl.is 
label. 
Wh.at-Sorghum-Fa~~ow 
This treatment controls annual broadleaf and grass weeds following wheat 
harvest and in the following sorghum crop when grown under minimum tillage. 
Apply 6 pt. to wheat stubble immediately following wheat harvest but before 
September 1. If weeds are present, remove them with a sweep plow or other 
suitable implement after application. Plant sorghum into wheat stubble the 
following spring with minimum disturbance of the soil. Use a surface planter 
Or a planter leaving a shallow furrow. If weeds are present at plantj~g, 
remove them with a sweep plow or other suitable implement before planting. 
Precautions 
(1) Use only on a silt loam or finer textured soil. 
(2) Wheat-sorghum-fallow cropping sequence must be followea. 
(3) Do not apply following sorghum harvest. 
NOTE: Do not graze or feed forage from tr~ated area to ~ivestock. Do not 
plant any crop other than those on this label within 18 months following 
treatr:>ent. 
PAGE 18 DO PON'l' ATRAZINB 4L

, 
\ 
Wheat-Com-Fallow (U, D) 
Atrazine 4L controls cheatgrass (downy brame, 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. 
Apply with ground equipment only. 
Follow directions for use, notes, and precautions in the 
"Wheat-Sorghum-Fallow" section above, substituting corn for references to 
sorghum. 
1Ihaat-Fall.ow-1Ib.at (CO, U, 1ft, D, lID, SO, aDd 1ft) 
For preemergence control of cheatgrass (downy brome, chess), common 
lambsquarters, field pennycress, kochia, mustard, Russian thistle, wild 
lettuce, and ~uppression of volunteer wheat during fallow period of a 
wheat-fallaw-wheat rotation, apply 1-2 pts. in 10-40 gal. of water per acre 
for ground application. or in a minimum of 5 gal. of water per acre for 
aerial application, 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 same fallow period. 
If weeds are present at application, a tank mix with paraquat may be used. 
Broadcast 1-2 pts. of Atrazine 4L plus 1-2 pts./A. (2 lbs./gal.) or 1.3 -
2.1 pts./A. (1.5 lbs./gal) paraquat. Add 8 fl.oz. of a nonionic surfactant, 
SUc;) as "Ortho" x-II, per 100 gal. of sp;:ay mixture. Add Atrazine 4L to 
spray tank first and thoroughly mix with w~ter. Tqen add paraquat, followed 
by surfactant. Use the 2 pts./A (2 lbs./gal.) or 2.1 pts./A (1.5 Ibs./gal.) 
rate of paraquat 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 fall~w period. Refer to paraquat label for further directions. 
precautions. and limitations. 
If weeds are present at application and Atrazine 4L is used alone, use 
either an approved contact herbicide before or after treatment, or tillage 
after treatment. 
Use tillage to control _eos which escape during fallow period. Till before 
planting. For Atrazine 4L applied alone or in tank mixture with paraquat, 
plant at least 2 inches deep and 12 months or more after application. 
PAcautions 
(1) Do not use on sand soil. 
(2) Do not tre~t eroded hillsides. caliche and rocky outcroppings, or. 
exposed calcareous subsoil. 
(3) 00 not treat soils of the Rosebud and Canyon Series in Western HE and 
adjoining count3.es in CO and NY. 
(4) 00 not treat soils wi~~ calcareous surface layers. 
(5) Avoid spray overlap. 
ROT&: 00 not graze treated areas within 6 months after application. 
(yo \(. "'L \" (. l~( t

( 
For control of annual broadleaf and grass wAeds prior to transplanting, 
after transplanting or in established conifers including Douglas fir, Grand 
fir. Noble fir. White fir., Austrian pine, Bishop pine, Jeffrey pine, 
Knobcone pine. Loblolly pine, Lodgepole pine, Monterey pine, Ponderosa pine. 
Scotch pine. Slash pine, Blue spruce and Sitka spruce. Annual broadleaf and 
grass weed control: Broadcast" to 6 pints in a minimum of 5 gallons of 
water per acre by air or 10 gallons by ground to assure thorough coverage. 
Apply before weed seedlings are .ore than 1.5 inches high. Apply to 
established trees between fall and early spring while trees are do~nt. 
For new transplants, apply during or svon after transplanting. For 
applications prior to transplanting, allow suffiCient precipitation to 
activate Atrazine 4L before transplanting. In areas where spring and SWlfl\er 
~ainfall is inadequate to activate Atrazine, apply during fall prior to 
spring transplanting. 
guackgra •• Suppr ••• ion: Broadcast 6 pints in a minimum of 5 gallons of 
water per acre by air or 10 gallons by ground between fall and early spring 
while trees are dormant and before Ouackgrass is m~re than 1.5 inches tall. 
00 not use in areas where spring and summer rainfall is inadequate to 
activate Atrazine. 
Precautions: 
(1) Do not graze treated areaS. 
(2) Do not apply to seedbeds. 
(3) Do not make more than one application per year. 
PAGE 20

Aerial Application: 
In order to assure that spray will be controllable within the target area 
when used according to label directions, make applications at a maximum 
height of 10 ft. above vegetation, using low drift no%%les at a maximum 
pressure of 40 psi, and restrict application to periods when wind speed does 
nol exceed 10 mph. To assure that spray will not adversely affect adjacent 
sensitive non-target plants, apply Atrazine 4L by aircraft at a minimum 
upwind distance of 400 ft. from sensitive plants. 
Apply Atrazine 4L at rates recommended below before or Soon after weeds 
begin growth. Postemergence applications should be made when weeds are young 
and actively growing. Use the higher rates on heavy clay and muck soils. 
Atrazine 4L can be used to provide long term weed control on industrial 
sites, highway medians and shoulders, railroad rights-of-way, lumberyards, 
petroleum tank farms, and in non-crop areas on farms, such as around 
buildings, equipment and fuel storage areas, along fences and lanes. 
Use sufficient water to assure thorough coverage. Use at least 1 gal. of 
water for each quart of Atrazine 4L, more if practical. To control many 
annual broadleaf and grass weeds (such as barnyardgrass, plantain, 
quackgrass, purpletop, redtop and smooth brome): Broadcast 10 qts. per acre. 
For small areas, 7.2 fluid ozs. per 1,000 sq. ft. is equivalent to 10 qts. 
per aCre. 
PAGE 21 DO POII'1' ATRAZ INII: 4L

RBLADEX" is a registered trademark of E.I. DuPont de Nemours and Co. 
"LASSOR is a registered trademark of Monsanto Company. 
"PRINCEP" is a registered trademark of Ciba-Geigy. 
"ORThO" X-77 is D registered trademark of Chevron Chemical Co. , Inc. 
"SENCOR" is a registered trademark of Mobay Chemical Company. 
"LEXONE" is a registered trademark of £.1. ~uPont de Nemours and Co. 
STORAGE AND DISPOSAL 
STORAG&: Do not contaminate vater, food, or feed by storage or disposal. Do 
not use or store around the home environment. Avoid contact with water. In 
case of spill or leak. soak up with sand, earth or synthetic absorbent (do 
not use alkaline absorbents) and dispose of wastes in compliance with local. 
state and Federal regulations. 
PESTICIDE DISPOSAL: Wastes resulting from the use of this product may be 
disposed of on site Qr at an approved waste disposal facility. 
CONTArNER DISPOSAL: Triple rinse (or equivalent). Then offer for recycling 
or reconditioning, or puncture and dispose of in a sanitary landfill, or by 
incineration, or, if allowed by state and local authorities, by burning. If 
burned, stay out of smoke. 
NOTICE OF WARRANTY 
Ou Pont warrants that this product conforms to the chemical description on 
the label thereof and is reasonably fit for the purposes stated on such 
label only when used in accordance with the directions under normal use 
conditions. It is impossible to elimi.:ate all risks inherently associated 
with the 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 manner of use or 
application, all of which are beyond the control of Ou Pont. In no case 
shall Du Pont be liable for consequential, special or indirect damages 
resulting from the use Or handling of this product. All such risks shall be 
assumed by the buyer. DO p(lII'l MADS 110 1IARP.AN'1'IES or IIEIl.CIlANTABILXTY Oil 
FITNESS FOR A PAJlTXctT.LaR PtJRPOU HOR AllY 0ftIEll DPUSS OR IMPLIED Wl\RB.AN'1'Y 
&XCEPT AS STATED ABOVE. 
D-062790 
RT CON'l'I:H'l'S 2.5 GJlI.I,ONS 
J:.I. DtI PONT DJ: RDIOOJIS • CO., [INC.); AGRlCOL'l'tJRAL PJtODOCTS DKPAJlna:H'l'; 
WIUUNGTON, D&TMDIIJ: 1'198 
PAGE 22 DO p(lII'l ATRAZIME oiL 
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