crop-chem-docs/corpus/epa_ppls/1381-159.md

# WILFARM ATRAZINE 90DF

- EPA Reg No: **1381-159**
- Registrant: WINFIELD SOLUTIONS, LLC
- Signal word: Caution
- Active ingredients: Atrazine (85.5%)
- Label accepted: 2000-07-31
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/068119-00005-20000731.pdf

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" 
RESTRICTED USE PESTICIDE 
(GROUND AND SURFACE WATER CONCERNS) 
FOR RETAIL SALE TO AND USE ONLY BY CERTIFIED APPUCATORS OR PERSQNS UNDER THEIR 
DIRECT SUPERVISION, AND ONLY FOR THOSE USES COVERED BY THE CERTIFIED 
APPUCATOR'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. 
'ia TRAZINE 90DF 
For season-long weed control in com, sorghum, and certain other crops 
ACfIVE INGREDIENTS: 
Atrazine: 2-chlor0-4-ethylamino-6-isopropylamino-s-triazine ...................................... _ .......... 85.5% 
) Rei!lted Compounds ................................................................................................................ ~ .............. 4.5% 
INERT INGREDIENTS: ..................................................................................................................... 10.0% 
TOTAL ........................................ 100.0% 
EPA Reg. No. 68119-5 EPA Est. No. 70989-MO-1 
If swallowed 
If on skin or 
clothing 
If in eyes 
KEEP OUT OF REACH OF CHILDREN 
CAUTION 
FIRST AID 
• Call a poison control center or doctor immediately for treabnent advice. 
• Have person sip a glass of water if able to swallow. 
• Do not induce vomiting unless told to do so by the poison control center 
or doctor. 
• Do not give anything by mouth to an unconscious person. 
• Move person to fresh air. 
• If person is not breathing, call 911 or an ambulance, then give .@l'tificial !:t C i e 
respiration, preferably to mouth-to-mouth, if possible. iii' I f 
• Call a poison control center or doctor for further treabnent advice. t f 
• Take off contaminated clothing. • '" i r 
• Rinse skin immediately with plenty of water for 15-20 minutes. !ill 
• Call a poison control center or doctor for treabnent advice. f 1 
• Hold eye open and rinse slowly and gently with water for 15-20 minut~; I; I 
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In = • Re~ove contact lenses, if present, after the first 5 minutes,~ fon~~e ~ • 
nnsmg eye. . ....... ____ .....:= 
• Call a poison control center or doctor for treabnent advice: • ; •• : •• • 
t:::: 
, ~ »~ 
Have the product container or label with you when calling a poison control cente~ PJ".doctot, N .: 
going for treabnent. NOTE TO PHYSICIAN: There is no specific antidote for ah,ffiru{e. If this· 
product is ingested, induce emesis or lavage stomach. The use of an aqueous slurry of •••• 
activated charcoal may be considered. : : : : 
See additional precautionary statements and directions for use below. . •. ,

PRECAUTIONARY STATEMENTS 
CAUTION 
HAZARDS TO HUMANS AND DOMESTIC ANIMAI..s 
Harmful if swallowed, inhaled, or absorbed through skin. Do not breathe dust or spray mist. 
Avoid contact with eyes, skin or clothing. 
PERSONAL PROTECTIVE EQUIPMENT (PPE) 
j' 
Applicators and other handlers~other than mixers and loaders) must wear: 
• Long-sleeved shirt and long pants 
• Waterproof gloves 
• Chemical-resistant footwear plus socks 
Mixers and loaders must wear: 
• Long-sleeved shirt and long pants 
• Waterproof 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. 
ENGINEERING CONTROL STATEMENTS 
2 
When handlers use closed systems, enclosed cabs, or aircraft in a manner that meets the 
requirements listed in the Worker Protection Standard (WPS) for agricultural pesticides [40 CFR 
170.240 (d) (4-6)], the handler PPE requirements may be reduced or modified as specified in the 
) WPS. 
USER SAFElY RECOMMENDATIONS 
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. ' , ol' 
-~.~--' 
ENVIRONMENTAL HAZARDS "J , , , , ., , . 
».1 , , 
" , 
.. . 
• J ') ) 1 J, J 
Atrazine can travel (seep or leach) through soil and can enter groundwater wlUch may bt jlsed 
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 wate;)'i~'~lose to.thft 
surface and where these soils are very permeable, i.e., well-drained. Your local agric{"huf31 
agencies can provide further information on the type of soil in your area and the locat:io~:of 
ground water. 
-

3 
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 application equip~nt 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 spill or ~uipment leaks, 
container or equipment rinse or washwater 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 that the pad must 
be self-contained. The pad shall<be sloped to facilitate material removal. An unroofed pad shall 
be of sufficient capacity to conta'k 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 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 fo vehicles when 
delivering pesticide shipments to the mixing/loading sites. 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 or 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 surface water runoff enters perennial or 
intermittent streams and rivers or within 200 ft. around natural or impounded lakes and 
reservoirs. 1£ this product is 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. 
Tile-Terraced Fields Containing Standpipes: To ensure protection of surface water from 
runoff through standpipes and tile outlets in terraced fields, one of the following options may 
') be used: 
1. Do not apply this product within 66 feet of standpipes in tile-outletted terraced fields. 
2. Apply this product to the entire tile-outletted terraced field and immediately incorporate it 
to a depth of 2-3 inches in the entire tile-outletted terraced field. 
3. Apply this product to the entire tile-outletted terraced field under a no-till practice only 
when high crop residue management practices are used. High crop residue managrrr,ent 
practice is described as a crop management practice where little or no crop resid\l.~ 'if' , 
removed from the field during or after crop harvest. . , ' 
, , , . .. . 
This pesticide is toxic to aquatic invertebrates. Do not apply directly to wa~{;l',lp areas'-,vhere 
surface water is present, or to intertidal areas below the mean high water ~a,~~. Do n9,hl·;;>ply 
when weather conditions favor drift from treated areas. Runoff and drift h:x'm treated areas 
may be hazardous to aquatic organisms in neighboring areas. Do not contaminate w,al'el'when 
disposing of equipment washwaters.

4 
DIRECTIONS FOR USE 
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 
requirements specific to your State or Tribe, consult the agency responsible fW pesticide 
regulation. 
AGRICULTURAL USE REQUIREMENTS 
,~ 
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 agricultural workers 
on farms, forests, nurseries and greenhouses, and handlers of agricultural pesticides. It contains 
requirements for training, decontamination, notification and emergency as~stance. It also 
') contains specific instructions and exceptions pertaining to the statements on this label about 
personal protective equipment (PPE) and restricted entry intervals. The requirements 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 entry 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: 
• CoveraIls 
). Waterproof gloves 
• Chemical-resistant footwear plus socks. 
NON-AGRICULTURAL USE REQUIREMENTS 
The requirements in this box apply 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.

5 
STORAGE AND DISPOSAL 
Pesticide Storage and Disposal .. 
Store in a dry place. Do not contaminate water, food, or feed by storage, disposal, or cleaning of 
equipment. Wastes resulting from the use of this product may be disposed of on-site or at an 
approved waste disposal facility. " 
Container Disposal 
Completely empty bag into appljcation equipment. Dispose of empty bag in a sanitary landfill, 
or by incineration, or by open bJrning, 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 f'l.cilities during 
') cleanup procedures and disposal of wastes. ' 
GENERAL INFORMATION 
This herbicide controls many annual broadleaf and grass weeds in com, 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 
effectively 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 
recommend 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 
generally 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.

6 
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. 
Do not apply this product in combination with other herbicides or oils, exc."t as specifically 
described on the label. 
APPLICATION PROCEDURES 
Ground Application: Use conventional ground sprayers equipped with nozzles that provide 
accurate and uniform applicatiop. Be certain that nozzles are uniformly spaced and are the 
same size. Calibrate sprayer beibre use and recalibrate at the start of each season and when 
changing carriers. Unless otherwise specified, use a minimum of 10 gals. of spray mixture/ A 
for all preplant incorporated, preplant surface, preemergence, and postemergence 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 suspension. 
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/100 gal. tank size circulated 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 
recirculation line. Use 50-mesh 0" coarser screens between the pump and boom, and where 
required, at the nozzles. Check nozzle manufacturer'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 
pre 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 lIb. of Atrazine 90DF applied per acre. For 
postemergence treatments on com and sorghum, apply recommended rate in a minimum of 2 
gals. of water per acre. 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.

7 
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 preplant 
surface ground application on com and sorghum. Check the compatibility.f 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 com or sorghum emerges or crop injury may occur. 
, 
Compatibility Test: Since liquid fertilizers can vary, even within the same ~alysis, always 
check compatibility with herbicide(s) each time before use. Be especially careful when using 
complete suspension or fluid feI;tilizers as serious compatibility problems are more likely to 
occur. Commercial application ~quipment may improve compatibility in some instances. The 
following test assumes a spray volume of 25 gal./ A. For other spray volumes, make 
appropriate changes in the ingredients. Check compatibility using this procedure: 
1. Add 1 pt. of fertilizer to each of two l-qt. jars with tight lids. 
2. To one of the jars, add 1/4 tsp. or 1.2 milliliters of a compatibility agent~proved for this 
) use, such as Compex® or Unite® (1/4 tsp. in 1 pt. is equivalent to 2 pts. per 100 gals. of 
spray). Shake or stir gently to mix. 
3. To both jars add the appropriate amount of herbicide(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 
herbicide for this test follows: 
Dry herbicides - For each pound to be applied per acre, add 1.5 level tsp. to each jar. 
Liquid herbicides - For each pint to be applied per acre add 0.5 tsp. (2.5 mi.) to each jar. 
4. After adding all ingredients, put lids on and tighten, and invert each jar 10 times to mix. Let 
the mixtures stand 15 minutes and then look for separation, large flakes, precipitates, gels, 
heavy oil 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 herbicide(s) in water before addition, or (B) add 1/2 of the compatibility agent 
to the fertilizer and the other 1/2 to the emulsifiable concentrate or flowable herbicide before 
addition to the mixture. If incompatibility is still observed, do not use the mixture. 
Applications in Water plus Emulsifiable Oil or Oil Concentrate: Adding emulsifiable oil 
(petroleum-derived, petroleum-derived oil concentrate, or single or mixed crop derived oil 
concentrate) to postemergence water-based sprays in com and sorghum may improve weed 
control. 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 compatibility probleI!'ls andlor 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 resultd~ 
2. Fill tank 114 full with clean~ater, 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 agitation if necessary to mamtain 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 concentrate film starts to build up in tank, drain it and clean with 
strong detergent solution or solvent. 
8 
11. Oean sprayer thoroughly immediately after use by flushing system with water containing a 
detergent. 
ROTATIONAL CROP - ALL USES 
) 1. Do not rotate to any crop except com or sorghum until the following year, or injury may 
occur. 
2. If applied after June 10, do not rotate with crops other than com or sorgnum 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 com or sorghum is to follow com or sorghum 
or when a crop of untreated com or sorghum is to precede other rotational crops. 
4. In eastern parts of the Dakotas, KS, western MN, and NE, do not rotate to soybeans if the 
rate applied to com or sorghum was more than 2.2 lbs.j 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.

) 
9 
ATRAZlNE 90DF APPliED ALONE-CORN OR GRAIN SORGHUM" 
Preplant Surface-Applied, Preplant Incorporated, or Preemergence (or Po~emergence at 2.2 
lbs/A with Oil) 
Broadleaf and Grass Weeds Controlled , 
barnyardgrass (watergrass)*** cocklebur" nightshade 
giant foxtail" groundcherry pigweed 
green foxtail*** ~imsonweed purslane 
large (hall y\ crabgrass" kochia ragweed 
wild oats larnbsquarters sicklepod** 
witchgrass (Panicum annual morningglory velvetleaf (buttonweed)*** 
capilare)*** 
yellow foxtail*** mustards 1" 
Postemergence with Emulsifiable Oil or Oil Concentrate in Water 
(at l.3lbs/A) 
BroadleafWeeds Controlled 
annual morningglory mustards wild buckwheat 
cocklebur pigweed velvetleaf** 
jimsonweed ragweed 
larnbsquarters smartweed 
*Where there are state/local requrrements regardmg atrazme use (mcludmg 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 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 state use regulations. 
"Partial control only. 
"'Partial control only on medium- and fine-textured soils. ~ 
CORN 
Preplant Surface-Applied (Broadleaf and Grass Control): Use on medium- and fine-textured 
soil with minimum-tillage or no-tillage systems only in CO, IA, IL, IN, KS, KY, MN, MO, MT, 
NO, NE, SO, WI, and WY. Apply the recommended rate of Atrazine 900F shown in Table 1 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 pf 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. On coarse-textured soils, do not apply 
more than 2 weeks prior to planting.

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 the label of the contact herbicide. 
.. 
10 
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 (Broadleaf and Grass Control): Broadcast in spring after plowing at rate 
in Table 1. Apply to the soil and incorporate before, during, or after final seedbed preparation. 
Avoid deep incorporation. For Irst results, apply within two weeks prior to planting. 
Preemergence or At-Planting (Broadleaf and Grass Control): Apply during or shortly after 
planting before weed emergence, at rate in Table 1. 
Postemergence (Broadleaf and Grass Control): Apply before weeds excee~ 1.5 inches in height , 
and before corn exceeds 12 inches in height at rates recommended in Table 1. 
TABLE 1 - BROAD LEAF AND GRASS CONTROL IN CORN* 
For All Soil Applications Prior To Crop Emergence: 
• On Highly Erodible Soils (as defined by SCS) 
If conservation tillage is practiced, leaving at least 30% of the soil covered with plant 
residues at planting, apply a maximum of 2.2Ibs.f A as a broadcast spray. 
If the soil coverage with plant residue is less than 30% at planting, a maximum of I.8Ibs.f A 
may be applied. 
• On Soils That Are Not Highly Erodible 
Apply 2.2Ibs.f A as a broadcast spray. 
") For Postemergence Application: 
. If no atrazine was applied prior to corn emergence, apply a maximum of 2.2Ibs.f A broadcast. 
If a postemergence treatment is required following an earlier herbicide application, the total 
atrazine applied may not exceed 2.5 Ibs. active ingredient (2.8Ibs. of this product) per acre per 
calendar year. 
*Broadleaf control (eastern CO, western KS, western NE, NM, OK Panhandle, west TX, and 
eastern WY): On sand, loamy sand, mild to strongly alkaline soil, and all recently leveled soil, 
apply no more than I.3lbs.f 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 set-backs) which are different from the label, the more 
restrictive/ 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 state use regulations.

11 
Postemergence with Emulsifiable Oil or Oil Concentrate in Water: Add the following volume 
of one of the type oils indicated for aerial or ground application unless the oil label specifies 
otherwise: to 
Type Oil Ground Application Aerial Application 
Oil concentrate (crop or petroleum-derived) 1 qt./ A , 1/2-1 qt./ A 
Petroleum-derived oil 1 gal./ A 2qts./ A 
Note: Crop-derived or petrole~-derived oil concentrates should contain at least 1 %, but no 
more than 20% suitable emulsifier or surfactant blend. Petroleum-derived oil should contain at 
least 1 % suitable emulsifier. 
Broadleaf and Grass Control: For postemergence control of those weeds listed under Preplant 
Incorporated and Preemergence, broadcast 2.2Ibs.j A plus emulsifiable oil ~r oil concentrate 
after weed emergence, but before weeds reach 1.5 inches in height and before com exceeds 12 
inches in height. 
Broadleaf Control: For postemergence control of those weeds listed under Postemergence with 
Emulsifiable Oil or Oil Concentrate in Water, broadcast l.3lbs./ 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. 
Use 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 carefully. Oil contaminated with even a 
small amount of water may not emulsify properly when added to the tank. 
~ 
4. To avoid crop injury, do not apply when crop is under stress from prolonged cold, wet 
weather, poor fertility, or other factors, or when crop is wet and sucC)Jlent from recent 
rainfall. 
5. Do not exceed 2.5lbs. active ingredient (or 2.8Ibs. of this product) per acre per calendar 
year. 
6. Postemergence application to com must be made before com exceeds 12 inches in height. 
TANK MIXTURES FOR CORN 
This product may be tank mixed with these herbicides for control of certain broadleaf and grass 
weeds in com: 
u/J4

) 
12 
Dual® (metolachlor) Lasso or Lasso EC + Roundup 
Dual + Gramoxone Extra Lasso or Lasso EC + Gramoxone Extra 
Dual + Roundup (glyphosate) Gramoxone Extra .. 
Dual + Princep® Princep 
Dual + Princep + Gramoxone Extra Princep + Gramoxone Extra 
Dual + Princep + Roundup Princep + Roundup .l 
Bexton® or Ramrod® (propachlor) Roundup 
Lasso® or Lasso EC (alachlor) Sutan+® 
, 
/1 
Use tank mix directions appearing on the labels of the above herbicides when tank mixing with 
this product. Observe all precautions and limitations on labeling of products used in a 
particular tank mix, 
Note: When the labels of the above herbicides refer to Atrazine SOW, use equivalent rates of 
Atrazine 9ODF. One pound of SOW equals O.9Ibs. of 90DF. 
Princep SOW, Princep 4L, or Princep Caliber 90®: In addition to the weeds listed under 
Atrazine 90DF Applied Alone--Com 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, ND, NE, SD, WI, and WY. 
Apply the recommended rate of Atrazine 90DF and Princep shown in Table 2 up to 45 days 
prior to planting. Refer to the Atrazine 90DF alone section for information if weeds should 
develop following early treatment. On coarse-textured soils, do not apply more than 2 weeks 
prior to planting. Refer to the Atrazine 90DF Applied AIone- Preplant Surface-Applied section 
of the com label for additional details. 
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. 
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.

) 
13 
Preplant Incorporated: Apply to the soil and incorporate in the spring before, during, or after 
final seedbed preparation. 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 Com sections of this label and to Princep BOW, Princep Caliber 90, o~Princep 4L labels 
for further directions, limitations, and precautions. 
Table1- Tank Mixtures with Princep on Corn 
Broadcast Rate Per Acre 
Soil Texture 1:1 Ratio* 1:2 Ratio** 
Atrazine 90DF Princep BOWl Atrazine 90DF Princep SOWl 
Sand, loamy sand, sandy loam 1.11bs. 1.251bs. 0.73Jbs. 1.67Ibs. 
Loam, silt loam, clay loam, 
sandy clay loam, silty clay l.3lbs. l.5lbs. O.BBlbs. 21bs. 
loam, sandy clay, or silty clay 
with low organic matter 
Loam, silt loam, clay loam, 
sandy clay loam, silty clay 
loam, sandy clay, or silty clay 1.6Ibs. I.Blbs. 1.071bs. 2.4Ibs. 
with medium to high organic 
matter, and clay (including 
dark prairie soils of the Com 
Belt) 
*For control of most weeds. 
**For control of expected heavy infestations of crabgrass and fall panicum. 
) IWhen using Princep Caliber 90 or Princep 4L, use equivalent rates. One lb. of Princep BOW 
equals 0.9Ibs. of Princep Caliber 90 or 1.6 pts. of Princep 4L. 
Princep SOW, Princep 4L, or Princep Caliber 90 plus Roundup: Use as tank mixture for 
preemergence and postemergence control of certain broadleaf and grass weeds where com will 
be planted directly into a cover crop, established sod, or in previous crop residues. Refer to 
Roundup label for all directions, weeds controlled, precautions, and limitations. 
Princep SOW, Princep 4L, or Princep Caliber 90 plus Gramoxone Extra: Use as tank mixture 
with Princep and Gramoxone Extra to kill existing vegetation and for residual weed control 
where com 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 1.1-2.21bs. of this product plus 1.25-2.5lbs. of Princep 
BOW (or 2-4 pts. of Princep 4L, or 1.1-2.2Ibs. of Princep Caliber 90) plus a suitable amount of 
Gramoxone Extra in 20-60 gals. of water per sprayed acre. Refer to the Gramoxone Extra label

) 
14 
for the appropriate rates to utilize in this tank mixture. Apply before, during, or after planting, 
but before com emerges. Add 0.5 pt. of a nonionic surfactant, such as X-77, per 100 gals. of 
spray mixture. Use the higher rate of Gramoxone Extra specified on the label if existing 
vegetation is 4-6 inches tall. This mixture will not control weeds taller than~ inches. 
Refer to further limitations and precautions on labels for this product, Princep, and Gramoxone 
Extra. " 
Use Precautions: For all applications to com: 
1. To avoid crop injury and ille~al residues, do not apply more than 2.8Ibs.j A of this product 
per year. ' 
2. For best control of velvetleaf and cocklebur, the application rate cannot be less than 2lbs.j A 
active ingredient, either alone or in tank mix combinations. 
3. Following harvest, plow (moldboard or disk-plow) and thoroughly till soil in fall or spring 
to minimize possible injury to spring-seeded rotational crops, regardles~of rate used. , 
Note: for all applications to com, do not graze or feed forage from treated areas for 21 days 
following application, or illegal residues may result. 
SORGHUM AND SORGHUM-SUDAN HYBRIDS 
(GRAIN AND FORAGE TYPES) 
Preplant Surface-Applied (Broadleaf and Grass Control): Use on medium and fine-textured 
soils with minimum tillage or no tillage systems only in CO, IA, IL, IN, KS, KY, MN, MO, MT, 
NO, NE, SO, WI and WY. Apply the recommended rate of Atrazine 900F shown in Table 3 up 
to 45 days prior to planting. If an ur.satisfactory 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 com indicated in Table 1. Under dry conditions, irrigation after 
application is recommended to move Atrazine 900F 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. 
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 (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 or At-Planting (Broadleaf and Grass Control): Apply during or shortly after 
planting, but prior to weed or crop emergence at rate shown in Table 3. 
• 
15 
Postemergence (Broadleaf and Grass Control): Apply at rate shown in Table 3 before weeds 
exceed 1.5 inches height and before sorghum exceeds 12 inches in height. 
l TABLE 3 - BROADLEAF AND GRASS WEED CONTROL IN SORGHUM 1,2 
For All Soil Applications Prior To Crop Emergence: 
• On Highly Erodible Soils (i§ defined by SCS) 
If conservation tillage is practiced, leaving at least 30% of the soil covered with plant 
residues at planting, apply a maximum of 2.2Ibs.j A as a broadcast spray. 
If the soil coverage with plant residue is less than 30% at planting, a maximum of 1.8 
lbs./ A may be applied. 
) • On Soils Not Highly Erodible 
Apply 2.2Ibs.j A as a broadcast spray. 
For Postemergence Application: 
If no atrazine was applied prior to sorghum emergence, apply a maximum of 2.2Ibs.j A 
broadcast. If a postemergence treatment 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, AR, FL, GA, LA, MS, NC, NM, 
OK, SC, TN, or TX. Do not apply preemergence 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 set-backs) which are different from the label, the more 
) restrictive/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 state use regulations. 
In case of planting failure, sorghum or com may be replanted. Do not make a second broadcast 
application or injury may occur. If originally applied in a band and sorghum or com is 
replanted in untreated row middles, this product may be applied in a band to the second 
planting provided the maximum application rate of 2.5 lbs. aij A atrazine per calendar year is 
not exceeded. 
Preemergence Broadleaf Weed Control in Furrow Irrigated Bedded Sorghum (AZ and CA 
only): For preemergence control of many broadleaf weeds, broadcast 0.9-1.3Ibs.j 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.

16 
Use Precautions for Preemergence Application to Furrow Irrigated Bedded Sorghum (AZ and 
CA only): To avoid possible sorghum injury, do not use on sand or loamy sand soil or on 
sorghum planted in furrows. Application to sorghum growing on alkali soits 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 8 months following application. Com may be planted 
immediately. ji' 
Postemergence Broadleaf Weed Control with Emulsifiable Oil or Oil Concentrate in Water: 
Broadcast 1.31bs.j A for control~f many broadleaf weeds. Apply before pigweed and 
lambsquarters reach 6 inches in"fleight 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, but before it reaches the boot stage. In all other areas, apply after sorghum 
reaches 3-leaf stage but before it exceeds 12 inches in height. Add 1 gallon of emulsifiable oill A 
for ground applications and 0.5 gal.j A for aerial applications, or add 1 qt. elf oil concentrate for 
) ground application. A cultivation may be necessary if all weeds are not co~trolled or if 
regrowth of weeds occur. 
For the list of the weeds controlled, see Atrazine 90DF Applied Alone-Com or Grain 
Sorghum-Postemergence With Emulsifiable Oil Or Oil Concentrate In Water. 
Use Precautions for Applications with Emulsifiable Oil or Oil Concentrate in Water: See 
"Use Precautions for Applications With Emulsifiable Oil Or Oil Concentrate In Water" in Com 
Section. 
Postemergence BroadleafWeed Control with Surfactant (CO, western KS, NM, OK, TX, and 
desert regions of AZ and CA only): Broadcast l.3lbs.j A plus 0.75 to 1.5 pts. of surfactant after 
sorghum reaches 6 inches in height, but before weeds reach 1.5 inches in height. Apply only on 
) sandy loam and finer textured soils. 
Use Precautions: For all applications to sorghum: 
1. Heavy rains 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 soils may result in crop injury. 
3. Following harvest plow (moldboard or disk-plow) and thoroughly till the soil in the 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 systemic insecticide applied in-furrow are used. 
5. Do not apply more than 2.5 Ibs. active ingredient (2.8Ibs. 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., sand,Joamy sand, sandy

loam, or to medium- and fine-textured soils having less than 1 % organic matter, or injury 
may occur. 
17 
7. For postemergence applications, do not apply to sand or loamy sand, or injury may occur . 
• 
Note: 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 a tank mixture.,fith Dual8E 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 Dual8E label for all directions, precautions and limitations. 
WINTER WEED CONTROL IN TEXAS 
-) For postemergence control of winter weeds only, such as henbit, seedling dbck, and annual 
) 
thistle on fall bedded land in the Gulf Coast and Blacklands of Texas, apply 0.9-1.1Ibs./ A 
postemergence 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, or an emulsifiable oil at the rate 
of 1.0% of the spray volume, or an oil concentrate at the rate of 1 qt./ A. 
Normal weed control programs may be used in the following corn, grain sorghum, or forage 
sorghum crop. 
Note: Do not plant any crops except corn, grain sorghum or forage sorghum the spring 
following this treatment, or illegal residues may result. 
ATRAZINE 9ODF-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 3.3Ibs./ A 
to wheat stubble immediately following wheat harvest. If weeds are present at application, 
remove them with a sweep plow or other suitable implement after application, or use an 
approved contact herbicide before or after application of Atrazine 9ODF. 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 Atrazine 90DF Applied Alone - Corn or Grain Sorghum­
Preplant Surface-Applied, Preplant Incorporated, or Preemergence. 
Use Precautions: 
1. Use only on silt loam or finer textured soil, or crop injury may result.

18 
2. Wheat-sorghum-fallow cropping sequence must be followed. 
3. Do not apply following sorghum harvest. 
Note: To avoid illegal residues, do not graze or feed forage from treated arfa to livestock. To 
avoid illegal residues and crop injury, do not plant any crop other than those on this label 
within 18 months following treatment. 
,;;' 
Wheat-Corn-Fallow: (CO, KS, ND, NE, SO, and WY): This product controls cheatgrass 
(downy brome, chess), kochia, mustards, pigweed, Russian thistle, wild lettuce, wild sunflower, 
and volunteer wheat during thej>eriod after wheat harvest. Weed control may extend into the 
following com crop grown under minimum tillage. 
On soils in NO and SO with a pH greater than 7.5, do not exceed 1.5 lb. a.i.j A Atrazine 900F. 
For soils with a pH less than 7.5 in NO and SO, apply 1-2 lb. a.i./ A. Use the higher rate on finer 
textured soils and where heavy weed infestations are expected; use the low~ 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 com. 
) 
Follow directions for use, notes and precautions in the Wheat-Sorghum-Fallow section above, 
substituting com where references to sorghum. 
Wheat-Fallow-Wheat (CO,KS, ND, NE, SO and WY): For preemergence control of cheatgrass 
(downy brome, chess), common lambsquarters, field pennycress, kochia, mustard, Russian 
thistle, wild lettuce, and suppression of volunteer wheat during fallow period of a wheat­
fallow-wheat rotation, broadcast 0.5-1.1 lbs.j A on all soils except those listed under Use 
Precautions. For control of pigweed and wild sunflower, use only the higher rate. Apply to 
stubble ground. Treat only once during the same fallow 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 3.3 lbs. of Atrazine 900F plus a suitable amount of Gramoxone Extra in 20-
60 gals. of water per acre by ground equipment. Refer to the Gramoxone Extra label for the 
appropriate rates to utilize in this tank mixture. Add 0.5-1 pint of nonionic surfactant, such as 
X-77, per 100 gals. of spray mixture. Add Atrazine 900F to the spray tank first and thoroughly 
mix with water. Then add Gramoxone Extra, followed by surfactant. Use the higher rate of 
Gramoxone Extra specified on 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 the same fallow 
period. Refer to Gramoxone Extra label for further directions, precautions and limitations. 
Wheat-Fallow-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 0.5-1.1 100. of Atrazine 900F plus a suitable amount of Gramoxone Extra in

19 
20-60 gals. of water / A by ground equipment. Add 0.5 to 1 pint of a nonionic surfactant, such as 
X-77, per 100 gals. of spray mixture. Add Atrazine 90DF to the spray tank first and thoroughly 
mix with water. Then add Gramoxone Extra, followed by surfactant. Use the higher rate of 
Gramoxone Extra specified on label if weeds are 4-6 inches tall. This rnixtuft! will not control 
weeds taller than 6 inches. Apply to stubble ground. Treat only once during the same fallow 
period. Refer to Gramoxone Extra label for further directions, use precautions and limitations. 
," 
U 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. 
ci~ 
Use tillage to control weeds whi1h 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. 
Use Precautions: To avoid crop injury: 
) 1. Do not use on sandy soil. 
2. Do not treat eroded hillsides, caliche and rocky outcroppings, or exposed calcareous subsoil. 
3. Do not treat soils of the Rosebud and Canyon Series in western NE and adjoining counties in 
co and WY. 
4. Do not treat soils with calcareous surface layers. 
5. Avoid spray overlap. 
Note: Do not graze treated areas within 6 months after application, or illegal residues may 
result. 
Aerial Application: In order to assure that spray will be controllabl~ 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 Atrazine 90DF 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, 
ND, NE, SD, and WY, including cheatgrass (downy brome, chess), common (annual) 
broomweed, little barley, medusahead, sagewort, and tumble mustard, broadcast 1.1lbs./ A in a 
minimum of 10 gals. of water by ground equipment in the fall before ground freezes, or after 
thawing in the spring, but before the established grasses greenup 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 per year. Temporary discoloration or other form of 
injury to the desirable perennial grasses may occur following application.

Note: To avoid illegal residues, 
1. Do not cut or feed roadside grass hay. 
2. Do not allow livestock to graze treated areas. 
CONSERVATION RESERVE PROGRAM (CRP) 
(NE, OK, OR AND TX) 
20 
., 
For control or suppression of the following weeds: annual ragweeds, bamytrdgrass, black 
nightshade, cheat, cocklebur, downy brome, fall panicum, field pennycress, giant foxtail, yellow 
foxtail, Japanese brome, Kentu4y bluegrass, kochia, lambsquarters, little barley, marestail, 
pigweed, prickly lettuce, smootl1 brome, and sunflower, refer to directions, notes, and 
precautions below. 
Pure stands of newly seeded big bluestem, switchgrass and eastern gamagrass. 
Use only on loam, silt loam, silty clay loam, clay loam, and silty clay soils wfth at least 1 % 
organic matter. 
Establishment: Broadcast 2.21bs./ A of Atrazine 90DF preplant incorporated or preemergence 
at time of seeding and prior to emergence of weeds. Prepare a good firm seedbed. Plant 1/2 
inch deep with a grassland drill (preferred method) or a conventional drill. If a conventional 
drill is used on prepared seedbeds, remove all tension from the disk openers .. For best results, 
cultipack or roll after planting. 
Renovation of existing stands of big bluestem and switchgrass planted on CRP acres. 
Broadcast 1.1-2.21bs./ A to existing stands of big bluestem and switchgrass prior to the 
emergence of weeds. Use the low rate on soils containing from 1-2% organic matter. Use the 
high rate on soils with 2% or more organic matter. 
Renovation of existing stands of the following perennial range grasses planted on CRP acres. 
) Bluegrama, indiangrass, little bluestem, sand lovegrass, sideoats, grama and western 
wheatgrass. Broadcast 0.6-1.1100./ A in the spring prior to weed emergence, or in the fall before 
the ground freezes and prior to weed emergence after these species have been established for at 
least one growing season, for control or partial control of the weeds listed above. Use the low 
rates for weeds controlled or suppressed easily. Use the higher rate on other weeds claimed in 
an earlier section of this label. 
Aerial Application: Make applications at a maximum height of 10 ft. above vegetation. Use 
low drift nozzles at a maximum pressure of 40 psi. Restrict application to periods when wind 
speed does not exceed 10 mph to control drift. To assure that drift will not adversel y affect 
adjacent sensitive nontarget plants, apply Atrazine 90DF by aircraft at a minimum upwind 
distance of 400 ft. from sensitive plants. Use 3-5 gals./ A total water volume; use the higher 
water volume when a dense, heavy ground cover is present.

Note: 
1. Do not cut or feed grass hay to livestock. 
2. Do not graze treated areas. ;0 
3. Do not use seeds for bird food. 
4. Do not dump or spill product or dispose of containers within the reach of livestock. 
5. Follow all applicable restrictions for the Conservation Reserve Program. l 
Use Precautions: To avoid crop injury, make only one application per year. Slight 
discoloration of desirable gr~ may occur following treatment. Injury may be enhanced 
when used on neutral or alkaline soils. 
SEVERE DROUGHT CONDmONS 
21 
Do not graze, forage or cut forage for hay. Under severe drought conditio~ the Conservation 
Reserve Program allows grazing and making of hay from CRP acres, as so specified by the local 
ASCS (Agricultural Stabilization & Conservation Service) office. This label does not allow for 
grazing or making of hay from CRP acres that have been treated with atrazine under any 
circumstances. 
SUGARCANE 
For control of many broadleaf weeds and grass weeds, including amaranths, crabgrass, 
fireweed, Flora's paintbrush, foxtails, junglerice and wiregrass, broadcast 2.2-4.4 lbs./ A of 
Atrazine 90DF at time of planting or ratooning, but before sugarcane emerges. For aerial 
application, broadcast in a minimum of 5 gals. of spray per acre, or broadcast or band by 
ground equipment in a minimum of 20 gals./ A, unless indicated otherwise. One additional 
application may be made over the sugarcane as it emerges, and two additional applications may 
) 
be made interline, after emergence, as directed sprays. Repeat treatments, where needed, may 
be applied broadcast, band, or interline as suggested with the final application being made prior 
to close-in. Do not exceed the rate of herbicide suggested for anyone crop of sugarcane. 
~ 
Note: Where high rates of Atrazine 90DF are used, apply in a minimum of 1 gal. of water for 
each 1 lb. of Atrazine 90DF applied per acre. 
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. using 
low drift nozzles at a maximum pressure of 40 psi, and restrict application to periods when 
wind speeds do not exceed 10 mph. To assure that spray will not adversely affect adjacent 
sensitive nontarget plants, apply Atrazine 90DF alone by aircraft at a minimum upwind 
distance of 400 ft. from sensitive plants.

22 
Florida 
For control of emerged pellitory weed: Apply 0.4-0.6100./ A in at least 40 gallons of water as a 
directed spray, by ground equipment, prior to close-in. Add 4 quarts of sulfactant for each 100 
gals. of spray. Thoroughly cover weed foliage. 
For control of alexandergrass, large crabgrass, pellitory (artillery) weed, and"l5piny amaranth, 
use one of the following methods at planting or ratooning: 
1. Apply 4.41bs./ A preemerg~ce. Follow with 1 or 2 applications as needed, postemergence 
to sugarcane and weeds at 2.2100./ A. Treat before weeds exceed 1.5 inches in height. 
2. Apply 1-3 times, as needed, at 2.21bs./ 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 2.21b~./ A to weed-free 
beds immediately after bed formation. Follow normal weed control program after planting. 
Use Precautions: To avoid crop injury: 
1. Do not apply more than 111bs./ A to anyone crop of sugarcane. 
2. If making 2.2100./ A applications during the summer fallow period, do not exceed 8.81bs./A 
during the remainder of the growing season, or illegal residues may result. 
Texas 
Use Atrazine 90DF for control of barnyard grass, pigweed, purslane, and sunflower, in plant or 
ratoon sugarcane. 
Apply 4.41bs./ A of Atrazine 90DF preemergence. Follow with 1 or 2 applications as needed at 
) 3.31bs./ A postemergence to sugarcane and weeds. 
For best results, when weeds are emerged, add a nonionic surfactant at a concentration of 2 
qts./100 gals. to the spray and apply before weeds exceed 1.5 inches in height. 
Use Precautions: 
1. Injury to sugarcane may occur when under moisture stress, when soil is of low absorptive 
capacity, or when land is first cropped to sugarcane. 
2. Do not apply after close-in. 
3. Do not apply more than 11 Ibs./ A to anyone crop of sugarcane, or crop injury may result.

) 
TURFGRASS FOR SOD 
(Florida Only) 
St. Augustinegrass, Centipedegrass, and Zoysiagrass 
23 
Broadcast 2.2-4.4 lbs./ A according to soil texture to control those weeds listed under Atrazine 
90DF Applied Alone-Corn or Grain Sorghum-Preplant Surface-Applied, l1'eplant 
I' 
Incorporated, or Preemergence. 
Muck or Peat 4.4lbs, Old Beds: Within 2 days after lifting sod. .-:1 
New Beds: Within 3-4 days after sprigging or pJu 
Sandy Soil 2.2Ibs. Old Beds: Within 2 days after lifting sod. 
New Beds: Within 7-10 days after sprigginK or J>lugging. 
If weeds regrow, apply an additionaI2.2Ibs.f A on muck or peat, or 1.llbs..fA on sandy soil. 
Use Precautions: To avoid crop injury: 
1. Do not apply within 30 days prior to cutting or lifting. 
2. Do not apply in combination 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 slowing of growth may follow applications. 
TURFGRASS FOR FAIRWAYS, LAWNS, SOD PRODUCfION* 
AND SIMILAR AREAS 
*In states other than FL. For use on turfgrass for sod in FL, see "Turfgrasses for Sod (Florida 
only)" section. 
Bermudagrass, Centipedegrass, St. Augustinegrass and Zoysiagrass 
) Apply Atrazine 90DF 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. Atrazine 90DF will control annual bluegrass even if it is emerged at the time of 
treatment. For control of summer annual weeds listed in the preemergence section of the 
Atrazine 90DF Applied Alone- Corn or Grain Sorghum section of this label, also apply 
Atrazine 90DF 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.llbs. of Atrazine 90DF (0.4 fl. oz. per 1,000 sq. 
ft.). Use 2.2lbs.f A (0.8 fl.oz. per 1,000 sq. ft.) for control of the other weeds named above. Do 
not exceed 1.1Ibs./ A per treatment on newly sprigged turfgrass or on hybrid bermudagrass 
such as Tiflawn, Tifway, and Ormond.

) 
24 
For continued summer annual weed control, apply another 1.llbs./ A at least 30 days after 
previous application, but not after April 15. However, do not make more tFl'an two applications 
of this product per year. 
Use Precautions: On newly sprigged turfgrass and hybrid bermudagrass, te;nporary slowing 
of growth and yellowing may occur following application. To avoid turf injury, 
1. Use only on turfgrass 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 IX. 
4. Do not use on muck or alkaline soils. 
5. Do not apply over the rooting area of trees or ornamentals not listed on this labeL 
6. Do not overseed with desirable turfgrass within 4 months before or 6 ~ths after 
treatment. 
7. Do not apply this product to newly seeded bermudagrass until it has overwintered and has 
a well-developed rhizome system. Do not exceed 221bs. product per acre within 12 months 
of seeding bermudagrass. 
Note: Do not graze or feed turf clippings to animals, or illegal residues may result. 
MACADAMIA NUTS 
For preemergence control of many broadleaf and grass weeds, including crabgrass, foxtail, 
wiregrass, Flora's paintbrush, spanishneedles and firewood, broadcast 2.2-4.4Ibs./ A before 
harvest and before weeds emerge. Repeat as necessary. Do not spray when nuts are on the 
ground or during the harvest period. Do not apply by air. 
GUAVA 
Use only on established plantings which are at least 18 months old. Apply as a directed spray, 
at 2.2-4.4 lbs./ A of Atrazine 90DF 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 (80-100 gals. of spray mix per acre) may enhance weed controL This product 
controls many annual broadleaf and grass weeds, including fireweed, purslane, scarlet 
pimpernel, spanishneedles and sowthistles. 
Note: 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 8.8Ibs. of Atrazine 90DF per year.

25 
CONIFERS 
For control of annual broadleaf and grass weeds prior to transplanting, aftef'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 (shore pine), monterey pine, 
ponderosa pine, Scotch pine, slash pine, blue spruce and Sitka spruce): Broacjcast 2.2-4.4 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 during or soW after transplanting. For applications prior to transplanting, 
allow sufficient precipitation to activate Atrazine 90DF before transplanting. In areas where 
spring and summer rainfall is inadequate to activate Atrazine 9ODF, apply during fall prior to 
spring transplanting. 
For the list of weeds controlled, see the Atrazine 90DF Applied Alone-Cow or Grain 
) Sorghum-Preplant Surface-Applied, Preplant Incorporated, or Preemergehce. 
) 
Quackgrass Control: Broadcast 4.4 lbs. 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 in height. 
Use Precautions: 
1. In areas west of the Rocky Mountains (except the Great Basin) grazing may begin 7 months 
after a fall application, or 3 months after a winter or spring application. 
2. To prevent illegal residues, do not graze treated areas of the Great Basin or areas east of the 
Rocky Mountains. 
3. Temporary injury to trees may occur following use of Atrazine 90DF on coarse textured soil. 
4. To avoid crop injury, do not apply to seedbeds. 
5. Also apply only once per year. 
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 nozzles at a maximum pressure of 40 psi, and restrict application to 
periods when wind speeds do not exceed 10 mph. To assure that spray will not adversely affect 
adjacent sensitive nontarget plants, apply Atrazine 90DF by aircraft at a minimum upwind 
distance of 400 ft. from sensitive plants. 
CONDnnONSOFSALEANDWARRANTY 
Conditions of Sale: This product is sold subject to, and buyer and user are deemed to have 
accepted the terms contained in, the Conditions of Sale and Warranty, Directions for Use, and 
Precautionary Statements, which may be varied only by agreement in writing by a duly 
authorized representative of WILF ARM L.L.c.

26 
Inherent Risks: 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. 
However, it is impossible to eliminate all risks inherently associated with the use of this 
product. Crop injury, ineffectiveness or other unintended consequences m~ result because of 
such factors as weather conditions, presence of other materials, or use of the product in a 
manner inconsistent with its labeling, all of which are beyond the control of WILF ARM L.L.C 
or the seller. All such risks shall be assumed by the buyer. ,,' 
Warranty Limitations: WILFARM L.L.C 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 ris~referred to above. WILF ARM L.L.C makes no other expressed 
or implied warranty of fitness or merchantability or any other expressed or implied warranty. 
Limitation of Liability: In no case shall WILFARM L.L.C or the seller be liable for 
consequential, special or indirect damages resulting from the use or handling of this product. 
No claim of any kind shall be greater in amount than the purchase price of the product in 
respect of which such damages are claimed. ~ 
Caliber 90®, Concep®, Dual®, and Princep® trademarks of Novartis 
Bexton® trademark of Dow AgroSciences 
Uniblen® trademark of WILFARM L.L.C 
Gramoxone® and Sutan+® trademarks of Zeneca Ag Products 
Lasso®, Ramrod® and Roundup® trademarks of Monsanto Company 
R-ll® trademark of Wilbur-Ellis Company 
Manufactured for: 
WILFARM L.L.c. 
5401 North Oak Trafficway 
Gladstone, MO 64118-4627 
Net Contents 
__ Lbs. 
L-Kgs.)