# BACKDRAFT SL HERBICIDE

- EPA Reg No: **5481-608**
- Registrant: AMVAC CHEMICAL CORPORATION
- Signal word: Caution
- Active ingredients: Glyphosate, isopropylamine salt (13.6%); Imazaquin (1.7%)
- Label accepted: 2003-08-21
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000241-00415-20030821.pdf

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.:t11-4/5 
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UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 
WASHINGTON. D.C. 20460 
AUG 2 1 tm?; 
Ms. Karen Blundell 
BASF Corporation 
26 Davis Dr. 
Research Triangle Park, NC 27709 
Dear Ms. Blundell: 
Subject: Backdraft SL Herbicide 
EP A Registration Number 241-415 
Application Dated July 31, 2003 
OFACE OF 
PREVENTION. PESncIDES AND 
TOXIC SUBSTANCES 
The labeling referred to above, submitted in connection with registration under the Federal 
Insecticide, Fungicide, and Rodenticide Act as amended is acceptable, provided you make the 
following changes before you release the product for shipment. 
I. Change order of Precautionary Statements to match order of First Aid statements, and so that the 
most severe routes of exposure are listed first. 
2. Add the subheading "Pesticide Storage" to STORAGE AND DISPOSAL, with corresponding text 
following. This should be placed directly after the phrase "Do not contaminate water, food, or feed by 
storage and disposal." 
3. Under the section "WEEDS CONTROLLED, GRASSES" change 5 back to 2.5 qt.lA in table 
(page 5). 
4. Under "Aerial Applications," a specific minimum buffer zone must be stated. 
5. Approved Spray Drift Management text must be included under "Aerial Applications." Enclosed is 
approved text that should be added to your label. 
Submit three (3) copies offinal printed labeling incorporating the above changes before you 
release the product for shipment. Amended labeling will supercede all previously accepted ones. A 
stamped copy oflabeling is enclosed for your records.

SL HERBICIDE 
FOR USE ON ROUNDUP@ READY SOYBEANS 
ACTIVE INGREDIENTS: 
Imazaquin: (2-[4,5-dihydro-4-methyl-4-(1-methyl-ethyl)-
5-oxo-1H-imidazOI-2-yIJ-3-quinolinecarboxylic acid.......................... 1.7% 
Glyphosate: N-phosphonomethyl)glycine, in the form of its isopropylamine salt . . . . 13.6% 
INERT INGREDIENTS: ................................................. 84.7% 
TOTAL ............................................................. 100.0% 
BACKDRAFT SL contains t .35 pounds of active ingredient per gallon 
(0.15 pounds acid equivalent of imazaquin and 1.20 pounds of glyphosate as the isopropylamine salt). 
Imazaquin U.S. Patent No.4, 798,619 
EPA Reg. No. 241-415 Est.No. 
KEEP OUT OF REACH OF CHILDREN 
CAUTION1/PRECAUCIONI 
Si usted no entiende la etiqueta, busque a alguien para que se la explique a usted en detalle. 
(If you do not understand the label, find someone to explain it to you in detail.) 
In case of an emergency endangering life or property involving 
this product, call day or night 800-832-HELP. 
See Inside for Additional First Aid, Precautionary Statements, Directions for Use and 
..... ~ Conditions of Sale and Warranty . 
.. I1l¥. ~ IloIocI 
AOO 2 1 are 
UIdIr die F ......... ,011..,. 
, dlilido, IIId RadonIicide Act 
.. ..... for die peIIicicIe 
....... IIIIdor SPA R.ta. No. 
d--Lf (- 4t-f 
BASF Corporation 
26 Davis Drive 
Research Triangle Park, NC 27709 BASF

FIRST AID 
• Hold eye open and rinse slowly and gently with water for 15-20 minutes. 
If in eyes • Remove contact lenses. jf present, after the first 5 minutes, then continue rinsing eye. 
• Call a poison control center or doctor for treatment advice. 
--
• Take off contaminated clothing. If on skin or 
clothing • Rinse skin immediately with plenty of water for 15-20 minutes. 
• Call a poison control center or doctor for treatment advice. 
HOT LINE 
Have the product container or label with you when calhng a poison control center or doctor or going for treatment. 
You may also contact BASF Corporation for emergency medical treatment Information: 1-800-832-HELP (4357). 
PRECAUTIONARY STATEMENTS 
HAZARDS TO HUMANS AND DOMESTIC ANIMALS 
CAUTION 
Harmful if absorbed through skin. Causes moderate eye Irritation 
Avoid contact with eyes. skin or clothing, 
Personal Protective Equipment (PPE): 
Some materials that are chemical·resistant to thiS product are 
listed below, If you want more options, follow the instructions 
for category A on an EPA chemical·resistant category selection 
chart. 
Applicators and other handlers must wear: 
• long-sleeved shirt and long pants 
• chemical resistant gloves. such as butyl rubber 2:: 14 mils, or 
natural rubber;;:: 14 mils, or neoprene rubber 2:: 14 mils. or 
nitrite rubber;;:: 14 mils 
• shoes plus socks 
Discard clothing and other absorbent matenals that have oeen 
drenched or heavily contaminated with this product's concentrate 
DO NOT reuse them. Follow manufacturer's instructions lor 
cleaning and maintaining PPE. If no such Instructions lor 
washables. use detergent and hot water. Keep and wash PPE 
separately from other laundry, 
User Safety Recommendations: 
User should: 
• Wash hands belore eating. drinlmQ. che'wing gum, uSing 
tobacco or using the toilet. 
• Remove clothing immediately if pesticide gets inside. Then wash 
thoroughly and put on clean clothing. 
ENVIRONMENTAL HAZARDS 
Do not apply directly to water, or to areas where surlace \l'laler 
is present, or to intertidal areas below the mean high water rnarf.. 
Do not contaminate water when cleaning equipment or ciSPOSln9 
01 equipment washwaters. 
This product demonstrates the properties and Characterl5tIC5 
associated with chemicals detected in ground water The use 
of this chemical In areas where soils are perlTleabl'O::, pa'll(ularl\ 
where the water table IS shallow, may result In ground Nater 
contamination 
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 producl In a 
way that will contact workers or other persons. either dlr8ctty 
or through drdl. Only protected handlers may be In the area 
during applicatIOn. For any requirements specific Ic) your State 
or Tribe, consult the agency responSible lor pestiCide rct,Julatlon 
DO NOT apply thiS product through any type of 1f'1~~otl{)11 
system. 
2 
ThiS labeling must be In the possession 01 the user at the time 
of herbiCide application 
AGRICULTURAL USE REQUIREMENTS 
Use thiS product only in accordance with its labeling and With the 
WQfker ProtectlQf"l Standard. 40 CFR part 170. This Standard 
contains requirements fO( the protection of agricunural workers on 
farms. forests. nurseries, and greenhouses. and handlers of 
agricunural pesticides, It contains requirements for training. 
decontamination, notification. and emergency assistance. It also 
contains specifK:: instrudions and exceptions pertaining to the 
statements on this label about personal protective equipment 
(PPE) and restricted-entry interval. 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 
PPE required lor early entry to treated areas that IS permitted under 
the Worker Protection Standard and that Involves contact Willi 
anything that has been treated, such as plant. SOil, or water, IS 
• coveralls 
• chemical reSIstant gloves. such as butyl ruboer L 14 
mils, or natural rubber c '4 mils, or neoprene rubber 
;;:: , 4 mils, or nitrile rubber 2:: 14 mils. 
• shoes plus socks 
STORAGE AND DISPOSAL 
Do not contaminate water, food. or feed by storage or disposal 
Do not store below oaF. If the product freezes. store at room 
temperature to thaw. Shake well before using. Keep containers 
closed to avoid spills and contamination . 
PESTICIDE DISPOSAL: Wastes resulting from the use of thiS 
product may be disposed of on site or at an approved disposal 
lacility 
CONT AINER DISPOSAL: Trrple nnse (or eqUivalent). Then oller 
for recycling Or reconditioning, or puncture and dispose ul III 
a sanitary landllll, by inCineratIOn, or, If allowed by State and 
local authOrities by burning, If burned stay out 01 smoke 
GENERAL INFORMATION 
BACKDRAFT(O) SL herbicide is a fleXible broad-spectrurn 
herbicide which may be applied as a burn-down herbiCide In 
no-IIII soybeans, to stale seedbeds, or postemer~ence In 
soybeans. Apply postemergence only to ROUNDUP READY 
soybeans. BACKDRAFT SL can also be applied (10 Use Regions 
2 and 3 as defined In the USE AREA section of thiS label) In 
the late fall for control 01 weeds in conventional, minimum, or 
no-till soybeans. Fall treated areas must be rlanted to ROUNDUP 
READY soybeans In the lollowlng spring, and, Ii rOQulred. 
ROUNDUP ULTRA applIed In seasorl In a planned soquentlal 
prograrn 
WI,erl BACKDRAFT SL IS applied preplant, It will burn down 
eXisting vegetation New susceptible weeds emerge, growth

stops, and then the weeds either die or are not competitive 
with the crop, 
When BACKDRAFT'" Sl herbicide IS applied postemergence. 
absorption occurs through both the foliage and roots. Susceptible 
weeds stop growing, die and are not competitive with the crop 
The mode of weed killing activity involves uptake of BACK DRAFT 
SL by weed roots andlor foliage and rapid translocation to 
growing points. Adequate soil moisture IS Important for extended 
residual BACKDRAFT SL activity. The amount 01 ramfall or 
irrigation reqUIred following application depends on existing 
soil moisture, soil texture and organic matter content, Sufficient 
water to moisten the soil to a depth of 2 Inches IS normally 
adequate for soil activation. When adequate moisture IS received 
after dry conditions, BACKDRAFT SL will provide residual 
control of susceptible germinating weeds, The dual actiVity 01 
BACK DRAFT SL on established weeds will provide control of 
a broad spectrum of broadleaf and grasses 
FALL APPLICATIONS 
(Use Regions 2 and 3) 
Apply BACKDRAFT SL after Fall Harvest and prior to ground 
freeze-up In the winter. Fall applications of BACKDRAFT SL 
will control existing weeds and provide residual control 01 Winter 
annual weeds and early spring germinating weeds in soybeans 
ROUNDUp· READY soybeans must be planted in the spring 
following the fall application of BACKDRAFT Sl. If heavy grass 
or waterhemp pressure is expected, add PROWL~" 3_3 EC 
herbicide to the spray mixture. See the PROWL 3,3 EC label 
for appropriate rates and timings, If weeds emerge In season, 
ROUNDUP UL TRA may be applied post emergence lor weed 
control. 
BURNDOWN WEED CONTROL 
(No-till soybeans and stale seedbed) 
Apply BACKDRAFT SL for burndowrl of weeds HI no·llll 
soybeans, It may be applied prior to plant mg. or preemergenu' 
of any soybean variety {including ROUNDUP READY soybeans) 
Add 2,4-0 to the spray tank for enhanced conlrol of weeds 
such as marestail and hemp dogbane. PROWL" 3 3 EC may 
be added lor enhanced control of grasses and small seeded 
broadleaves. When mixing BACKDRAFT SL With 2.4-0 or 
PROWL 3.3 EC. always use in accordance with the more 
restrictive label limitations and precautions. No label dosage 
rates should be exceeded. This product cannot be mixed with 
any product containing a label prohibition against such mixing. 
ROUNDUP READY SOYBEANS 
(glyphoaate resiatant) 
BACKDRAFT SL may also be applied for postemergence 
weed control in ROUNDUP READY soybeans. Apply BACKDRAFT 
SL for general weed burndown and reSidual contro.! 01 broadleal 
and grassy weeds 
For season-long control 01 grasses. apply PROWL 33 EC 
herbicide prior to planting soybeans PROWL 3 3 EC will als(' 
enhance control of water hemp. A post emergence appllcalloll 
of 8ACKDRAFT SL will control any escape weeds and prOVide 
season-long control 01 mos! broadleal and grass weeds 
Note: DO NOT apply BACKDRAFT SL poslemergence 10 
non-glyphosate-resistant soybeans. 
Some broadleaf weeds such as giant ragweed germinating 
deep in the sailor With subsequent flushes may !equlre a 
cultivation or a follow-up postemergence herbiCide application 
tor season long control 
Apply when weeds are actively growing 00 NOT apply 
BACK DRAFT SL postemergence when soybeans and weeds 
have been subjected to stress conditions such as temperature 
and mOisture extremes 
OccasIonally, Internode shortening 01 soybean plants may 1)8 
observed With BACKDRAFT SL applications These eft8ch 
occur Infrequently and are usually temporary 
ATTENTION 
AVOID CONTACT OF BACKDRAFT SL WITH FOLIAGE OF 
DESIRABLE PLANTS, BECAUSE SEVERE INJURY OR PLANT 
DEATH MAY RESULT. 
AVOID DRIFT. EXTREME CARE MUST BE USED WHEN APPLYING 
THIS PRODUCT TO PREVENT INJURY TO DESIRABLE PLANTS 
AND CROPS 
Do not allow the herbiCide solutIOn to drilt onto deSirable 
vegetation. Very small amounts of drift may cause Injury or 
death to deSirable crops or plants. The likelihood of Injury 
occurrmg Irom the use 01 thiS product increases when Winds 
are gusty. during inversion conditions or other weather conditions 
that lavor drift. Avoid applications using high spray, pressure 
and high speed. These contribute 10 conditions that favor small 
spray droplets and drift. 
USE AREA 
BACKDRAFT~' SL herbicide can be applied only In tile 
states or parts of states shaded In the !ollowlng map 
Use Region 1 Includes eastern Oklahoma (east 011-35). 
Arkansas. the Mlssour! boolheet, Tennessee. North Carolina. 
South Carolina, Georgia. Flonda. Alabama, MissiSSIPPI. LOUisiana. 
and eastern Texas (east of 1·35 north of San AntoniO. east of 
1-37 south of San Antonio). 
Use Region 2 includes eastern Kansas (east of U.S. 81; the 
counties of Cloud, Ellsworth. Harvey. Jewell, Lincoln. Mitchell. 
McPherson, Ottawa, Republic, Saline, Sedgewick, and Sumner). 
southeastern Nebraska (east of U.S. 81, south of U.S, 34). 
Missouri, Illinois (south of S.R. '16 west of Peoria: south of 
U.S. 24 east of Peoria), Indiana, Ohio, Michigan. Kentucky, 
Virginia, West Virginia. Pennsylvania. Maryland, Delaware. and 
New Jersey. Iowa in the counties of Mills, Fremont, Montgomery. 
Page. Adams, Taylor, Union. Ringgold. Clarke, Decatur. Lucas, 
Wayne, Monroe, Appanoose, Wapello, Davis. Jefferson, Van 
Buren. Henry. lee. and Des MOines 
Use Region 3 Includes Nebraska (east of U.S, 81, north of 
LJ S 34 and also that area east of U_S_ 283, south of U,S. 30, 
and west of U,S 81), South Oakota (east of U,S 8ll, IllinOIS 
(north of S R 116 west 01 Peoria: north of U_S 24 east of 
Peoria). WisconSin, Iowa (counties other than those listed In 
Us(~ Region 2), and Minnesota (south of S.R, 210) 
Note See IhE~ ROTATIONAL CROP RESTRICTIONS sectlrm 
for recommendations pertaining to each Use ReglOrl 
DIRECTIONS FOR CONVENTIONAL, 
MINIMUM, AND NO·TILL APPLICATIONS 
APPLICATION RATE 
Apply SAC K DRAFT SL al a broadcast rate 01 2,5 quarts per 
acre for either a fall application, spflng preplanl burndown or 
posternergence application AI this broadcast rate. one gallon 
of BACK DRAFT SL will treClt 1.6 acres 01 soybeans 
NOTE: In Use RegIon 3 as defined by the Use Area sectl(lfl o( ttiiS 
label. apply SACKDRAFT SL pnor to July 1.

APPLICATION INSTRUCTIONS 
All applications of BACKDRAFfT M SL herbicide require 
the addition of a surfactant and ammonium sulfate. 
Use a nanionic or organa-silicone surfactant. The nanlonic 
surfactant should contain at least 80% active ingredient and 
be applied at a rate 01 1 quart per 100 gallons of spray solullon 
The organo-silicone surfactant should be applied at a rale of 
at least 1 quart per 100 gallons 01 spray solution. Reier to the 
specific surfactant label lor more specific use instructIOns 
FALL APPLICATIONS 
BACKDRAFT Sl may be applied in conventionaL minimum, or 
no-till soybeans as a fat! application In Use RegIOns 2 and 3. 
Apply BACKDRAFT SL after Fall Harvest, and prior to ground 
freeze-up in the winter. 
PREPLANT/PREEMERGENCE APPLICATIONS 
BACK DRAFT SL may be applied Ir) conventional. minimum. 
or no-lill as a preplan! burndown applICation up 10 45 days (30 
days In Use Region 1) before planting. Preemergence applications 
may also be applied during or after planting but belore the crop 
emerges. 
Adequate moisture is required lor residual control from 
BACKDRAFT SL. 
POSTEMERGENCE APPLICATIONS 
Apply BACKDRAFT SL postemergence only to ROUNDUP ~ 
READY soybeans. BACK DRAFT SL applied postemergence 
not only controls the emerged weed species listed previously. 
but can also provide residual control of susceptible weeds that 
may emerge after application. The optimum timing of application 
is before most weeds exceed 6-8 inches In growth. Larger 
weeds become more difficult to control. Controlling weeds 
before they exceed 8 inches In size reduces the potential faT 
reduced crop growth due to weed competition 
HERBICIDE COMBINATIONS 
A preplant or preemergence burndown treatment of BACKDRAFT 
SL is active against most grass species. For residual grass control 
BACKDRAFT SL should be tank mixed with PROWL e 3.3 EC 
hert>tctde. FRONTIERe herbicide. or other labeled grass herbicides. 
BACKDRAFT SL may also be applied as a sequential 
postemergence treatment following application of a grass 
herbicide. PROWL- 3.3 EC will also provide residual control of 
waterhemp species. 
For no-till uses, BACKDRAFT SL may be tank mixed With 2.4-
o to kill existing vegetation. The addition 01 2.4-0 will assist 
in the control of perennial weeds Bnd other difficult weeds 
including horseweed (marestail) and hemp dogbane. Use a 
minimum of 10 gallons of water per acre. Use higher gallonage 
for lields with dense vegetation or heavy crop residues. Use 
ground equipment only. Plant soybeans at least one Inch deep 
and adjust planters to ensure adequate seed coverage 
When used In combination With another herbiCide. BACKDRAFT 
SL should be used only in aCCOrdance with recommendations 
on this label. Always follow the more restnctlve label limitations 
and precautions. BACKDRAFT Sl cannot be mixed With any 
product containing a label prohibition agamst such mixing 
BACKDRAFT SL Plus 
PROWL" 3.3 EC Tank Mixture 
If a heavy infestation of waterhemp species or grasses are 
anticipated a tank mix of BACKDRAFT SL plus PROWL 3.3 
EC is recommended lor reSidual control. Refer to the PROWL 
3.3 EC label for specific use rates. application methods and 
application timings based on SOil texture and soil orgarllc mailer 
content 
Alternatively. PROWL 33 EC may be applied pleplont and 
BACKDRAFT SL applied pustemergence lor season-long 
control 01 water hemp and other weed species Other registered 
grass herbicides may be used In place of PROWL 3.3 EC 
4 
For preplant applications plant soybeans Within 45 days after 
application (30 days In Use Region 1). For preemergence 
applications. apply up to a maximum of 2 days after planting 
DO NOT apply PROWL 3 3 EC if soybeans have emerged. 
Tank Mixtures with 2,4-D 
2.4-0 may be used with BACKDRAFT<!> SL herbicide prior 
to planling for contra! of some annual and perennial broadleal 
weeds. Use the follOWing rales of 2.4-0 In tank mixtures with 
BACKDRAFT SL 
2,4·0 
Formulation 
Ester 
2,4·0 
Rate (Ib a.I./A) 
0.5 
Minimum Days Before 
Planting Soybeans 
7 
Amine 0.5 15 
Ester or Amine 1 .0 30 
ReIer to 2,4·0 label lor weeds controlled Observe all cautions 
and limitations on the 2.4-0 label 
MIXING INSTRUCTIONS 
APPLICATIONS OF BACKDRAFT SL REQUIRE THE 
ADDITION OF A SURFACTANT Am! FERTILIZER. 
I_ SURFACTANTS: Use only non-ionic surfactants approved for 
application to groWIng crops that contain at least 80% active 
ingredient. Apply the surfactant at the rate of 1 quart per 100 gallons 
of spray mixture (0.25% vlv 01 the spray ITllxture). 
AND 
II. FERTILIZER: Include a fertilizer In the spray solution. Add spray 
grade ammonium sullate at the rate 018.5·17 Ibs. per 100 gallons 
01 spray solution. Use the higher rate when weeds are under 
moisture or temperature stress 
When mixing BACK DRAFT SL. while agitating. add components 
In the following order 
1) Fill spray tank 1/2 full With clear. Nater 
2) Add fertilizer. 
3) Add BACK DRAFT SL and thoroughly mix 
4) Add surfactant to the spray tank 
5) While agitating. fil! the remainder of the tank with water. An 
antiloaming agent may be added to the tank if needed. Maintain 
agitation while spraying to ensure a uniform spray mixture. 
When lank mixing BACKDRAFT SLwith 2.4-0, and/or 
PROWL 3.3 EC, add products to the tank In the following order: 
1) Fertilizer. 
2) BACKDRAFT SL, 
3) PROWL 3.3 EC, 
4) 2,4·0, and 
5) surfactant 
DRIFT CONTROL ADDITIVES: 
Drill control additives may be Included to either ground or aerial 
applications When a drilt control agent IS used, read and 
carefully observe the precautionary statements and all other 
information appearing on the additive label 
To aVOid 1r1jury to senSitive crops, spray equipment used for 
BACKDRAFT SL applications must tw-dralned and thoroughly 
c!eaned With water before being used to apply other products 
SPRAYING INSTRUCTIONS 
NOTE: DO NOT make applications when spray may be carried 
by Wind to senSitive crops AVOid overlaps when spraying 
GROUND APPLICATIONS: 
Unlformty apply With properly calibrated ground eqUipmenl H) 
, 0 or more gallons of water per acre Use sprayers eqUipped 
With nozzles that prOVide accurate and uniform application To 
minimize drift. use a maximum spray pressure of 40 pSI.

, 
'. 
To ensure thorough coverage, use a minimum of 20 gallons 01 
water per acre when applying BACKDRAFT"'SL herbicide as 
a postemergence treatment. Use higher gallonage for fields 
with dense vegetation or heavy crop residues. 
DO NOT apply with ground equipment when wind velocity IS 
greater than 10 mph. 
AERIAL APPLICATIONS: 
Uniformly apply with properly calibrated aerial equipment In 5 
or more gallons of water per acre. When applied 
POSTEMEAGENCE, the addition of a non-iontc surfactant AND 
fertilizer solution are required for optimum weed control. Apply 
a non-ionic surfactant at the rate of 0.25% v/v of spray solution 
AND ammonium sulfate at Ihe rale of 2.5 Ib/acre. (See MIXING 
INSTRUCTIONS) 
To avoid injury 10 senSitive crops from drift. aerial applicators 
must adhere to the following SPECIAL AERIAL USE DIRECTIONS 
AND PRECAUTIONS 
• Nozzle height above ground must be a maximum of 10 feet 
• Nozzles must be pOlflted toward the rear 01 the alfcral1 The 
downward angle 01 the nozzle should nol be grealer than 
20 degrees. 
• To minimize wing-tip vortex roll, nozzles or spray boom 
must not be located any closer to end of wing or rotor than 
three-fourths the distance from the center of the aircraft. 
• Use a maximum spray pressure of 40 psi 
• A buffer zone must be established between the area 10 be 
sprayed and sensitive crops. 
• DO NOT spray when wind velOCity is gr€!ater than 5 mph 
Applicator is responsible lor any loss or damage which results 
from spraying BACK DRAFT SL in a manner other than 
recommended in this label. In addition, applicator must follow 
all applicable state and local regulations and ordinances In 
regard to spraying 
WEEDS CONTROLLED 
When applied as directed, BACKDRAFT SL will control tile 
following weeds at the application rates Indicated below 
BROADLEAF WEEDS 
WEEDS CONTROLLED 
Anoda,spurred 
Burcucumber 
Chickweed 
Cocklebur, Common 
CopperIeaI, Hophornbeam 
CopperIeaf, Virginia 
Ecfipta 
Reabane. 
annual 
hairy 
rough 
Grounsel, common 
Henbit 
Horseweed/marestall 
Jimsonweed 
Lambsquarters, Common 
Morningglory 
Entlreleaf 
Ivyleaf 
Palmleat 
Pined 
Smallflower 
Tall 
Maximum Weed Size (inches) 
2.5 qUA 
2 
6 
12 
18 
2 
2 
6 
16 
12 
4 
B 
4 
10 
3 
8 
6 
6 
6 
6 
6 
6 
5 
Mustard species 
Nightshade, Eastern Black 
Nightshade, hairy 
Pigweed 
Palmer 
Redroot 
Smooth 
Spiny 
waterhemp, sp. 
Puncturevine 
Purple, deadnettle 
Pusley, Florida 
Ragweed, 
Common 
Giant 
Sesbania, Hemp 
Sicklepod 
Sida, Prickly (tea weed) 
Smartweed, 
ladyslhumb 
Pennsylvania 
Spurge, 
spotted 
Prostrate 
Sunflower, Common 
Velvet\eaf 
GRASSES 
WEEDS CONTROLLED 
Baney, volunteer 
Barnyardgrass 
Bluegrass, annual 
Corn, Volunteer 
Crabgrass 
Foxtail 
Giant 
Green 
Yellow 
Goosegrass 
Grain sorghum 
Johnsongrass, seedling 
Junglerice 
Itchgrass 
Oats, volunteer 
Panlcum. 
browntop 
fall 
Texas 
Red nce 
Rye 
Shattercane 
SignaJgrass, Broadleal 
Spranglelop 
Stinkgrass 
Wheat, volunteer 
Wild oats 
Witchgrass 
Wooty cupgrass 
16 
10 
10 
6 
6 
6 
6 
6 
5 
6 
6 
6 
4 
2 
2 
2 
6 
6 
10 
10 
18 
5 
MaXimum Weed Size (Inches) 
5 
18 
5 
14 
20 
18 
12 
12 
12 
5 
12 
18 
5 
12 
6 
8 
6 
8 
4 
16 
18 
5 
12 
16 
12 
16 
16 
12 
"/I

( 
ROTATIONAL CROP RESTRICTIONS 
The followin~rotatjonal crops may be planted alter applying 
BACKDRAFT SL herbicide at recommended rales In soybeans 
USE CROP REGION' 
Soybeans No restrictions 
Wheat 4 months 
Spring following 
Rice BACKDRAFT Sl 
applicaticln 
Barley 11 months 
Foeid Com 9.5 months! 
Edible Baaos 11 months 
Grain Sorghum 11 months 
Oats 11 rTlCfIths 
Peanuts 11 months 
Tobacco " months
f
• 
Sugar Beets & 40 months Red Table Beets 
Other Crops 18 months 
USE 
REGION 2 
(excep! MIChigan I 
No restrictions 
4 months 
Spring 'ollowing 
BACKDRARSL 
application 
11 months 
95 months 2 
" months 
11 months 
11 months 
11 months 
11 months' 
40 months 
18 months 
USE 
REGION 3 
No restrictions 
18 months' 
18 months 
, 1 months 
11 months 
18 months 
t 1 months 
i1 monUlS 
40 months 
See FOOTNOTE 7 
'For USE REGION 1 as defined in the USE AREA section of this label, held 
com may be planted in the spring of the year loUowing BACKDRAFT SL 
application unless extreme drought conditions develop !less than 15 
inches of rainlall Of irrigation is received withIn 6 months follOWIng the 
date of fast application). A minimum of 10 inches 01 ranfall is needed for 
a postemergence application of BACKORAFT SL 
2 For USE REGION 2 (except Michigan~ as defined In the USE AREA 
section of this label, field com may be planted in the spnng of the year 
following BACKORAFT SL appfication unless exlreme drought 
conditions develop Oess than 15 inches of rainfall or irrigation IS received 
from two weeks prior to the date of last applicatIon through November 
15 of the same year). A minimum of 10 inches 01 rainfall IS needed for a 
postemergence application of BACKORAFT SL 
If the mifllmum rainfall requirement IS not met. only field corn hybrids 
which possess tolerance or resistance to BACKORAFT Sl and other 
imtdazolinone herbicides may be planted the spnng 01 the year following 
an application Including BACKDRAFT SL (SEE NOTE) 
.1Growers in the Michigan counties of Berrien. Cass. St. Joseph, Branch, 
Hbdale, lenawee. Monroe, Van Buren, Kalamazoo, Calhoun, Jackson, 
Washtenaw, and Wayne may use the rotational crop restrictions for Use 
Regkln 2. 
Growers in other Michigan counties may NOT plant oats or barley In the 
fall ot spring at the year following a BACKORAFT SL applicahotL In thiS 
geography, only field com hybrids which possess tolefance or reSistance 
to BACKDRAFT SL and other imidazolinone hert:Mcides may be planted 
the spring of the year following an application including BACKORAFT SL 
(SEE NOTE). 
• For USE REGION 3 as defined in the USE AREA section of thiS label, field 
com, wheat, barley, Of oats may be pfanted as a rotational crop in the fall 
or in the spring of the year fonowing BACKORAFT SL apPication ONLY 
if at least 10 inches of rainfa" or irrigation has been received from the 
date of application through October of the same year 
For soil applications of BACKORAFT Sl in USE REGION 3, as defined 
in the USE AREA section of this label, field com may be ptanted as a 
rotational crop 18 months follOwing the application of BACKDRAFT Sl 
unless extreme drought conditions develop (less than IS Inches of rmntal! 
or irrigation is received from two weeks pnor to the date of BACKORAFT 
SL application through November 15 01 the same year) If the minimum 
rainfall requirement is nol met, field corn may no! be planted 1118 spllng of 
the year fallOWing the 18 month crop rotation penod 
'iln Nebraska, east of U.S. 283. SOUlll 01 U.S. 3D, and weS1 of U S 81, 
wheal may be ptanted 4 months after a BACKORAFT Sl application In 
this geography. only field corn hybrids which possess tolerance Of 
resistance to BACKDAAFT SL and other imidazallnone herbiCld£:s may 
be planted the spring of the year tallowing an applJcahon Including 
BACKDRAFT SL (SEE NOTEI 
~In Use Regions 1 & 2 tobacco may be planted 9 1;'( months foHowlng 
applICation 01 BACKOAAFT Sl herbiCide only +1 BACKORAFT Sl 
herbicide was applied at labeled rates 
'For USE REGION 3 as defined In the USE AREA section Ilf Ihl~ 1;JI)tl 
canala. strawbernes, cabbage, tomatoes, potC:l1oes. Cdrr01~. cell"'" cole 
crops, garlic, Onions, spinach, asparagus, cauliflower. and broccoli may 
be planted 26 months alter BACKORAFTe SL herbicide ap~llcal<()n 
Other crops may be planted 18 months after BACKORAFT SL 
application 
6 
NOTE: Contact your chemical dealer, seed supplier, or 8ASF 
to obtain information regarding the availabitity of 
imidazolinone tolerant field corn hybrids which are 
adapted to your area. 
FOR FALL APPLICATIONS of BACKDRAFT SL (Use Regions 
2 and 3), adjust the rotatlona! crop intervals by basing the 
Interval on the date 01 soybean planting rather than the dal~ 
01 herbicide application 
Use of BACKDRAFT SL in accordance with label directions 
IS expected to result In normal growth of rotatIonal crops In 
most situations; however, vanous environmental and agronomiC 
factors make it ImpOSSible to eliminate all risks associated with 
the use of thiS product and, therefore, crop Injury, IS always 
pOSSible. 
Except where otherWise stated on a Supplemental Label or In 
thiS label, DO NOT apply products containing chlornnuron eltlyl 
(e g. Classlc'~, Canopy', elC ). Imazaqulr1 (e.g BACKDRAFT SL. 
SCEPTER~' 70 DG, SQUADRON~), Imazethapyr (e 9 PURSUIT' 
PURSUIT-': DG. PURSUIT':: PLUS ECl. flumetsularn, (e g 
Broadstrike~i), or cloransulam (e.g Firstrate~) the same year 
as BACKDRAFT SL because Injury to follow crops may occur 
In the event of a crop loss due to weather conditions. soybeans 
can be replanted. DO NOT work the 5011 deeper than 2 Inches 
PRECAUTIONS 
DO NOT use on crops other than soybeans. Apply preplant or 
preemergence to any soybeans, Apply only postemergence to 
ROUNDUP READY soybeans Crops other than ROUNDUP 
READY soybeans, such as conventional soybeans, cotton, corn 
and vegetables, may be Injured by spray drill or other Indirect 
contact with BACKDRAFT SL 
To aVOid injury to senSitive crops trom spray drift. lallow all use 
directions and precautions In the SPRAYING INSTRUCTIONS 
section. 
Do not use BACKDRAFT SL other than in accordance With the 
Instructions set forth on thiS label. 
To avoid Injury to sensitive crops. spray equipment used lor 
BACKDRAFT SL applications must be drained and thoroughly 
cleaned with water before being used to apply other products 
to these crops . 
There must be an interval of at least 90 days between the tast 
BACKDRAFT SL application and soybean harvest 
DO NOT apply to soybeans once flowering has Initiated 
Make only one application of BACK DRAFT SL per soybean 
growing season 
DO NOT graze or feed treated soybean forage, hay or straw tG 
livestock 
Us!:) of BACKDRAFT SL 118rblclde In accordance witt) label 
directions IS expected to resull In normal growth 01 rotational 
crops In most sl\uatlOns, however, variOus environmental and 
agronomic lactors make 11 ImpOSSible to eliminate all risks 
associated With the use of thiS product and, there10re, crop 
Inlury, IS always pOSSible See ROTATIONAL CROP RESTRICTIONS 
section 
Re~)lantIf19 If replantll1Y IS nec(:!ssary III a field previously tre8teu 
With BACKDRAFT SL. tt1U 11(;10 may be:; replanted to ~oyl.lear1S 
Rework the soil no deeper thall the trealGej lone DO I'-JOT apply 
a second treatment of BACKDRAFT SL

Agricultural Products 
8 
CONDITIONS OF SALE AND WARRANTY 
The Directions For Use of this product reflect the opinion 
of experts based oh field use and tests. The directions are 
beheved to be reliable and should be followed carefully. 
However, it is Impossible to eliminate all risks inherently 
associated with use of this product. Crop injury, ineffectiveness 
or other unintended consequences may result because of 
such faclors as weather conditions, presence of other 
materials, or use 01 the produclln a manner inconsistent 
with its labeling, all of which are beyond the control of BASF 
CORPORATION ("BASF") or the Seller. All such risks shall 
be assumed by the Buyer. 
BASF warrants that this product conforms 10 the chemical 
description on the label and IS reasonably IiI for !he purposes 
referred to In the DIrectIons For Use, subject to the Inherent 
risks, referred to above. BASF MAKES NO OTHER 
EXPRESS OR IMPLIED WARRANTY OF FITNESS OR 
MERCHANTABILITY OR ANY OTHER EXPRESS OR 
IMPLIED WARRANTY. IN NO CASE SHALL BASF OR 
THE SELLER BE LIABLE FOR CONSEQUENTIAL, 
SPECIAL OR INDIRECT DAMAGES RESULTING FROM 
THE USE OR HANDLING OF THIS PRODUCT. BASF 
and the Seller offer thiS produc!. and the Buyer and User 
accept it, subject to the foregoing Conditions of Sale 
and Warranty which may be varied only by agreement In 
writmg signed by a duly authorized representative of BASF. 
Uses With Other Products (Tank-mixes) 
If this product is used In combination with any other product 
except as specifically recommended in writing by BASF, 
then BASF shalf have no liability for any toss, damage or 
injury arising out of its use in any such combination not so 
specifically recommended. It used In combination recommended 
by BASF the liability of BASF shall in no manner extend to 
any damage, loss or Injury not directly caused by the inclUSion 
of the BASF product in such combination use, and in any 
event shall be limited to return of the amount of the purchase 
price of the BASF produci 
Frontlet', Prowl, PUrsUit Scepter and Squadron are registered trademarks 
of 8ASF Corporation. 
Roundup is a registered Trademark of Monsanto Agricultural Products 
Company. 
Classfc and Canopy are registered tradem8rks of £.1. du Pont de Nemours 
and Company 
Broadstrike is 8 registered trademark of DowElanco Company 
Firs/rate is a registered trademark o( Dow AgrosClerJces LLG. 
© 2003 BASF Corporation 
All rights reserved 
241415·03137.20030702 
NVA 2003·04·107 -0138 
Supersedes NVA 2001-04·107 ·0228 
BASF