crop-chem-docs/corpus/epa_ppls/100-655.md

IGRAN DF HERBICIDE

• EPA Reg No: 100-655
• Registrant: SYNGENTA CROP PROTECTION, LLC
• Signal word: Caution
• Active ingredients: Terbutryn (80%)
• Label accepted: 1985-06-10
• Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000100-00655-19850610.pdf

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Igran e OF Herbicide For weed control in winter wheat, winter barley, grain sorghum, and noncrop land areas Net Weight Active Ingredients: Terbutryn: 2-tert-ltylamino-4- ethylamino-6-methylthio-- ACCEPTED JUN 1 01995 UndOI tbtJ red.lal lna~ak! .. Fungiai.de, and Rodcatic1d. Act. a.a am .. de<l., lor th. pettldd.

triazine ............................................. . 
Related compounds •.•.•.•..•...•••••••.•...••••••.••••.•. 
Inert Ingredients: 
Total: 
EPA Reg. No. 100-
EPA Est. 100-AL-1 
Igran DF is a dry flowable formulation 
Keep Out of Reach of Children. 
CAUTION 
See additional precautionary statements on left panel. 
See directions for use on panel at right. 
CIBA-GEIGY 
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76% 
4% 
20% 
100% 
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DIRECTIONS FOR USE AND CONDITIONS OF SALE AND WARRANTY 
IMPORTANT: Read the entire DIRECTIONS FOR USE and the 
Conditions of Sale and Warranty before using this product. 
conditions of Sale and Warranty 
The Directions for Use of this product reflect the opinion of 
experts based on field use and tests. Th~ directions are 
believed 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, ineffective­
ness, or other unintended consequences may result because of 
such factors as weather conditions, presence of other materials, 
or the manner of use or application all of which are beyor,d the 
control of CIBA-GEIGY or the Seller. All !'uch risks shall be 
assumed by the Buyer. 
CIBA-GEIGY warrants that this product conforms to the chemical 
description on the label and is reasonably fit for the purposes 
referred to in the Directions for Use subject to the inherent 
risks referred to above. CIBA-GEIGY makes no other express or 
implied warrantr of Fitness or Merchantability or any other 
express or implled warranty. In no case shall CIBA-GEIGY or 
the Seller be liable for consequential, special, or indirect 
damages resulting from the use or handling of this product. 
:IBA-GEIGY and the Seller offer this product, and the Buyer and 
user accept it, subject to the foregoing Conditions of Sale and 
Warranty, which may be varied only by agreement in writing 
signed by a duly authorized representative of CIBA-GEIGY. 
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General Information 
Igran DF is a selective herbicide for control of many annual 
broadleaf weeds and grasses. The weeds controlled are as fol­
lows: 
Wheat and Barley 
bedstraw 
blue lips 
bur buttercup 
catchweed 
chickweed (common and 
umbellate) 
China lettuce 
coastal fiddleneck 
(tarweed) 
corn gromwell 
corn spurry 
cow cockle 
falseflax (Camelina) 
field pennycress 
henbit 
Jacob's ladder 
mayweed (dogfennel) 
miners lettuce 
Pacific meadow f~xtail 
pineappleweed 
prickly lettuce 
prostrate knotweed 
redstem filaree 
shepherdspt:.rse 
speedwdll (snow weed) 
sprirg beauty 
Jim Hill mustard* 
blue mustard· 
Sorghum 
annual ground cherry 
carpetweed 
crabgrass 
foxtail 
j unglerice 
kochia 
lambsquarters 
morningglory 
pigweed 
puncturevine 
ragweed 
Russian thistle 
smartweed 
velvetleaf 
barnyard grass 
(watergrass) 
Noncrop Areas 
barnyardgrass 
blue mustard 
carpetweed 
chickweed 
China lettuce 
cocklebur 
dogfennel 
fiddleneck 
field pennycress 
green foxtail* 
gromwell 
henbit 
kochia 
nightshade 
pepperweed 
pigweed 
purslane 
tarweed 
teaweed 
tumble mustard 
tumblewetd 
white sweet clover 
wild buckwheat * 
wild mustard 
, , , , , , , , , , 
.+-------------------.----~~----------~",-----, , , ( , ( 
*Some mustards (Jim Hill and blue mustard) can be effect;'l(e'l.Y ,',', 
controlled if treated while they are very small. lIowev~r~' late,:,,' 
germinating mustard seedlings may not be controlled. In' fal­
lowed noncrop areas, Igran gives partial control of gre~ri ' , , " ., . , 
foxtail and wild buckwheat. " , 
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Following many years of continuous use of this product and chem­
ically related products, biotypes of some of the weeds listed on 
this label hav·· been reported which cannot be effectively con­
trolled by this and related herbi~ides. 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 registered 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. 
When applied before weeds emerge, Igran DF enters weeds through 
their roots after gp.rmination. Preemergence effectiveness de­
penes, therefore, on rainfall or irrigation to move Igran OF into 
the soil. Very dry soil conditions may necessitate a shallow 
cUltivation. When applied to emerged weeds, Igran OF provides 
foliar kn?ckdown of existing weeds and residual control of later 
germinating weeds. 
In each case where a range of rates is given, the lower rate 
should be used on relatively coarse-textured soils or soils low 
in organic matte~; the higher rate shoulr be used on relatively 
fine-textured soils or soils high in organic matter. 
For Igran alone preemergence on winter wheat or sorghum, 
nonpressurized liquid fertilizer may replace all or part of the 
water as carrier for ground application. 
TO avoid ~9ray drift, do not apply under windy co~ditions. Avoid 
spray ove,lap bec~use crop injury may result. 
FAILURE TO FOLLOW THE DIRECTIONS FOR USE AND PRECAUTIONS ON THIS 
LABEL MAY RESULT IN CROP INJURY, POOR PERFORMANCE, AND/OR ILLEGAL 
RESIDUES. 
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Application Procedures 
Ground application: Use conventional ground sprayers equipped 
with nozzles that provide accurate and uniform application. Be 
certain that nozzles are uniformly spaced and are the same size. 
Calibrate sprayer before use and recalibrate at the start of each 
season and when changing carriers. Unless vtherwise srecified, 
use a minimum of 20 gal 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 (Ii maintain 35-40 psi at nozzles, 
and (2) provide sufficient agitation in tank to keep mixture in 
suspension. Use centrifugal pumps which provide propeller shear 
action for dispersing and mixing this product. The pump should 
provide a minimum of 20 gai/minute/IOO 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 coarsec. Do not place a screen in the recircula­
tion llne. Use 50-mesh or coarser screens between the pump and 
boom, and where required, at the nozzles. Check nozzle manu­
facturer's recommendations. 
For band applications, calculate amount to be applied per acre as 
follows: 
band width in inches 
row width in inches x broadcast rate 
per acre '" amount needed 
per acre of field 
Aerial application: Use aerial application only where broadcast 
applications are specified. Apply in a minimum of 5 gal of 
water. Avoid applications under conditions where uniform,.colo'er­
age cannot be obtained or where excessive spray drift may::'tf~t"ur. 
In order to assure that spray will be controllable within .t~e :,.,,:,,:, 
target area when used according to label directions, make " '51'P1i- :, ",'" 
cations at a maximum height of lQ ft., using low drift nozzles at ',,' 
a maximum pressure of 40 psi, dlld restrict application to;:-pet,iods ",' 
when wind speed doe.'! not exceed 10 mph. To assure that st>.r~Y" ' 
will not adversely affect adjacent sensitive nontarget pIQnt~, 
apply Igran OF alone, or in combination with Milogard., by ~ir- ",." 
craft at a minimum upwind distance of 300 ft. from sensiti~e, 
plants, or apply Igriln OF + AAtrex. and Igran OF + AAtrex·"'·'.' 
paraquat at a minimu'l upwind distance of 500 ft. from sens1t!~e 
plants. For additiolal precautions, see Precautionary st£l6e.ments 
sect ion at the end 0' the label.

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Avoid application to humans or animals. Flagmen and loaders 
should avoid inhalation of spray mist and prolonged contact with 
skin, and should wash thoroughly before eating and at the end of 
each day's operation. 
A fertilizer: Nitrogen solution or 
rep ace aTl or part of the water 
as a carrier for preemergence, preplant incorporated, or preplant 
surface ground apvlication on corn and sorghum. Check the 
compatibility of this product with liquid fertilizer and/or 
nitrogen solution as shown below before use. 
Compatibility Test: Since liquid fertilizers can vary, even 
within the same analysis, always check compatibility with herbi­
cide(s) each time before use. Be especially careful when using 
complete suspension or fluid fertilizers as serious compatibility 
problems are more likely to occur. Commercial application equip­
ment may improve compatibility in some instances. The following 
test assumes a spray volume of 25 gals. per acre. For other 
spray volumes, make appropriate changes in .he ingredients. 
Check compatibility using this procedure: 
1) Add 1 pint of fertilizer to each of 2 one-quart j,rs with 
tight lids. 
2) To one of the jars add 1/4 tsp. or 1.2 milliliters of a 
compatibility agent apl -oved for this use, such as Compex. or 
Unite. (1/4 tsp. is equ~valent to 2 pts. per 100 gals. 
spray). Shake or stir gently to mix. 
3) To both jars add the appropriate amount of herbicide(s). If 
morc than one herbicide is used, add them separately with dry 
herbicides first, flowables ne~t, and emulsifiable concen­
trates last. After each additior., shake or stir gently to 
thoroughly mix. The appropriate amount of herbicides for 
this test follows: 
Dry herbicides: 
Liquid herbicides: 
For each pound to be applied pef afre, 
add 1.5 level teaspoons to each:~a~. 
For each pint to be 
0.5 teaspoon or 2.5 
jar. 
• ••••• .... ... . 
applied per'~e~e, add • •••••• milliliters tit each •••• 
•• • •• • • •• 
• ••• • •• •• • 
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4) After adding all ingredients, put lids on and tighten, and 
invert each jar ten times to mix. Let the mixtures stand 15 
minutes and then look for separation, large flakes, precipi­
tates, gels, heavy oily film on the jar, or other signs of 
incompatibility. Determine if the compatibility agent is 
needed in the spray mixture by comparing the two jars. If 
either mixture separates, but can be remixed readily, the 
mixture can be sprayed as long as good agitation is used. If 
the mixtures are incompatible, test the foll~wing 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. 
Application in water plus emulsifiable oi or oil concentrate: 
Addlng emulsifiable oil (petroleum derived, petroleum-derived oil 
concentrate, or single or mixed crop-derived oil concentrate) to 
postemergence water-based sprays in fallow may improve weed con­
t rol. 
Use one of the following properly emulsified: 
1. A suitable oil concentrate containing at least 1% but not 
more than 20% suitable emuls'fier or surfactant blend. 
2. Petroleum-derived oil containlP~ at least 1% suitable emulsi­
fier. 
cr, Note: In the event of a compatibility problem when mixing oil 
with Igran DF 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 problems. 
Mixing procedures - all uses: (1l Be sure sprayer is cle~n wnd 
not contaminated with any other materials, or crop injury:~" 
sprayer clogging may result. (2) FiU tank 1/4 full with ~&an : •• :-: 
water, nitrogen solution, or complete liquid fertilizer. •••••• : •••• : 
(3) Start agitation. (4) Be certain that the agitation syst-em is •••• 
working properly and creates a rippling or rolling action:o.n·t:he ••••• 
liquid surface. (5) Pour product directly from bag i'1to (arm. ..: •• ' 
(6) Continue filling tank until 90% full. Increase agita.l&n:if • 
necessary to maintain surface action. (7) Add eml . .lSifiable°.oll, •• : •• : 
oil concentrate, or tank mix herbicide(sl after this produ~t_is •• 
thoroughly suspended. (8) Finish filling tilnk. (9) Empt1.t·aflk •• : •• : •••• •••• • 
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as completely as possible befure 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. (11) Clean sprayer 
thoroughly immediately after use by flushing system with water 
containing a detergent. 
DIRECTIONS FOR USE 
It is a violation of federal law to use this product in a manner 
inconsistent with its labeling. 
Winter Wheat 
Preemergence (Washington, West of the Cascades Only) 
Apply to winter wheat after planting and before emergence. 
Igran OF Alone: Apply at ra~~s listed in Table 1. 
Table 1 
Lbs. of Igran DF/A* 
Soil Texture 
Sand, 
loamy sand 
Sandy loam, 
silts, 
clay loam 
Wheat 
DO NOT 
1 • 5 - 2 • 7 5 I bs. 
!3arley 
DO NOT USE 
1.5-2.~~ ,frs. 
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*Preemergence applications of Igran DF mdY be mixed with ~~t~er 
water or nonpressurized fertilizer solutions as a carri"r; Un" 
wheat. Nonpressurized liquid fertilizer solutions shollld,nnt 
used as a carrier for Igran OF on barley or injlll '/ may oc'n,'y; 
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Precautions: 1) TO avoid illegal residues or crop injury, fields 
on which Igran OF has been applied should not be plQntpd to any 
era other than wheat or barle for 9 months followin( J"Llica-
tlon. W eat growlng on t In y covere or expose <Llb.~(»r--
areas (clay knobs), are more susceptible to yellowing from appli­
cations of Igran OF. This yellowing is usually temporary. 
Note: To avoid illegal residues, do not feed green forage or 
graze treated areas to livestock for six months following 
application. 
Grain Sorghum 
Igran OF may be aprlied alone or in tank mix combination with 
either AAtre; or Milogard prior to planting with shallow in­
corporation, at planting time, or immediately following planting, 
but before weeds and sorghum emerqe. Igran OF may also be 
applied in tank mix combination with AAtrex anJ paraquat where 
grain sorghum will be planted directly lnto cover crop, estab­
lished sad, or in previous crop residues. Apply during or after 
planting, but before sorghum emerges. Do not apply to emerqed 
sorghum. When applying preplant with shallow incorporation, 
apply within 7 weeks of plantinq and incorporate into the tcp 1-2 
inches of soil using a rolling cultivator, rotary hoe, spike­
tooth harrow, or similar implement. For sorghum planted on beds, 
apply and incorporate after bed formation. 
Precautions: 1) In case of be 
replanted Into SOl prev10usly treate WIt Igran OF or Igran 
combinations. 2) Do not apply a second broadcast application, or 
Til ur rna occur. 3) If I ran OF or Igran combInatIons nre 
app l.ed In a band, an sorg urn IS rep anted 1n the untreated row 
middles, Igran OF or Igran combinations rna be a lied in a band 
to the second plantIng. I 1rr1gation 1S necessary, ILrl~te 
during the first 36 hours after planting or wait until th~·' 
sorghum is at least two inches tall, or injury may occur. ..... ..... 
...... • •• . . 
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Igran OF Alone: 
or 3. 
Apply Igran OF at the rate indicated in Table 2 
Table 2 
Annual Broadleaf and Grass Weed Control 
-, 
Soil Broadcast Rate 
Region Texture Per Acre 
All sorghum I sand, DO NCir USE 
growing loamy sand 
regions of 
the U . S . ; 
except states sandy loam 2.5 Ibs. 
shown helow to loam 
silt loam 3 1 bs. 
to clilY 
-------- -
Eastern sand DO NOT USE 
Colorado, -.- - - . -.---'-'~---
South Dakota, 
Illinois, loamy sand 2-2.5 Ibs. 
Iowa, 
Kansas, 
Min'1esota, sandy loam 2. <, 1 bs. 
M' ssouri, an, to loam 
t.ebraska r-- --
silt loam 1 1 bs. 
to clay • • • ••••• -----.I 
•••• • · ... .. • • • • .. 
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-11-
Table 3 
Annual Broadleaf Weed Control Only 
Region 
KtlnSas, 
OkLchoma, 
N(~w Mexico, 
T'ex1s, and t 
dpscr reglo 
of Arizotla a 
c: ~c 1 i for 1 i a 
Le 
ns 
nd 
---
Soil 
Texture 
sand 
loamy sdnd 
all other 
sc i 1 
textures 
D:' + AA t rex: 
Broadcast Rate 
Per Acre 
-, 
1 1 b. 
1 • 5 Ibs. 
I 
2 Ibs. 
A tank mixture of I'JL:.'L Df __ iL)'Jar~_ or Igran 
I JLl'l DF , ,Lc"'lar d or 19r an 
regions indlcct.ed below, for 
when I'adrl Df is llsed ClL-np 
inaiC<:lt('d in Table 4. Do l,t 
locnn/ SCllld suils 
flF + AI\trex can be uu-d ill the 
more consistent weed contro~ than 
Apply the tank mixture at the rate 
lse either combination on sand or 
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Tabl", 4 
------
Annual Broadleaf and Grass Weed Control 
Region 
I [linois, 
Iowa, 
Eastern Kansas, 
Minnesota, 
M issouri, and 
EasU>rn and 
C 
N 
entral 
ebraska, 
Scuth Dakota 
C 
K 
W 
N 
o 
T 
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8ntral 
anS2 S, 
esj..:~rn 
ebrGlska, 
klahoma, 
exas 
" 
and 
Soil 
Texture 
33 ndy 
loam 
loam and 
finer 
sandy 
loam 
loam and 
fin8r 
Broadcast Rate Per 
Igran Milogard 
DF r-' " . 90* 
2 1 bs. 0 ... 5 lb. 
2-2.5 1 bs. DO NOT USE 
2 1 bs. 0.45 1 b. 
2-2.5 Ibs. 0.9 1 b. 
',' ! 
Acre 
AAtrex 
Nine-O ID * 
DO NOT USE 
0.9 lb. 
DO NOT USE 
DO NOT USE 
(. E 'astern sandy 2 Ibs. 0.45 lb. OG NOT USE 
C 
W 
olorado, and 
<'stern Kansas 
loam and 
finer 
"- ~--------
*When using Milogard 4L, Milosard BOW, AAtrex 4L, AAtrex 4LC or 
AAtrex BOW, use equivalent rates. 0 .. 9 lb. of Nine-O or Max~. 90 
equals 1 lb. of BOW. 0.9 lb. of Nine-O or Maxx 90 equalg:"y:"6' 
pts. of 4L or 4LC. ." •••• 
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-13-
Igran OF + 'AAtrex + paraquat: Apply the tank m~xture at the 
rates indicated in Table 5. Refer to paraquat label concerning 
directions, limitations, and cautions for use of that product. 
Apply in 20-40 gals. diluted spray per acre. Add a ncnionic 
surfactant such as X-77 e at 1 to 2 pts. per 100 gals. diluted 
spray. Use only water or nitrogen solutions as a carrier. Add 
Igran to spray tank first, mixing thoroughly in carrier. Next, 
add AAtrex, paraquat and X-77. Maintain agitation of carrier at 
all times. 
Table 5 
Broadleaf and Gr~ss Control 
Broadcast Rate Per Acre 
Soil Texture 
COARSE: 
Sand, loamy sand 
MEDIUM: 
Loam, silt loam, 
silt 
FINE: 
Silty clay loam, 
sandy clay loam, 
Igran OF 
DO NOT USE 
2 1 bs. 
AAtrex 
,.j i ne-O* 
DO NOT USE 
0.9 lb. 
sandy clay, .•. Ibs. 
paraquat 
DO NOT USl 
1-2 pts. 
1-2 pts. 
• • ..... "''' 
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clay lo<.m, 2 5 lbs 11 8 
silty clay, 
_c_l_a_y ______________________ -------------- ,------------~~-------.~.~.~~:~.--- :::~:: 
*When using AAtrex 4L, AAtrex 4LC or AAtle~ 80W, 
rates. 0.9 lb. of Nine-O equals 1.6 pts. of CL 
lb. of Nine"O equals 1 lb. of SOW. 
• 
use equi,JAJ.4Ilt 
or 4LC. 'Q:<t .. , 
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-14-
Winter Weed .Control in Texas: For postemergence control of 
winter weeds onl
1, such as henbit (purple top), seedling dock, 
and annual thlst e on fall bedded land in the Texas Gulf Coast 
and 81acklands of Texas, apply 0.75 to 1 lb. of Igran OF per 
acre, postemergence to the weeds in the fall or winter to land 
that will be planted to sorghum the following spring. For best 
results, add a suitable surfactant, such as X-77, at the rate of 
0.5% of the spray volume, an emulsifiable oil at the rate of 1.0% 
of the spray volume, or an oil concentrate at the rate of 1 qt. 
per acre. 
Nor~al programs of weed control may be used in the following 
SO! Ihum crop, 
Note: To avoid illegal residues or crop injury, do not plant any 
crop except grain sorghum the spring following this treatment. 
Precautions: 19ran OF alone and Igran OF combinations - 1) To 
avoid crop injury, apply only on sorghum planted after the mini­
mum soil tern erature has reached 60°F or more for at least three 
consecutIve ays. Do not walt more than two days after plant-
~~) apply. 00 noe apply over emerged sorghum, or crop injury 
may occur. 3) Rainfall or overhead irri ation at the time of 
iorghum emergence an untl t e sorg urn IS Inc .es ta may 
cause injury to sorghum. 4) 00 not apply to millets, sudan-
sor hum h brids, or sor hum breedin stocks, or in'ur rna occur. 
App lcations may resu t In crop InJury w en rna e to sorg urn 
growing on alkali soils, ci'\liche outcroppings, or where cuts, 
fills, or erosion have ex osed calcareous subsoil. 6) To avoid 
concentratIon 0 er lCI e In t.e see urrow, 0 not make a 
broadcast applIcation to sorghum planted in furrows dpo,er than 
two inches. Width of the band should not exceed the width of the 
bottom of the furrow. 7) 00 not apply a second applIcation to 
the same crop, or injury may occur. 
~otp (1gran OF alone and Igran OF combillations): To avoid • 
illegal l:esidues, do not graze or feed forage from treatetl'l:t'reas. 
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-15-
Suggestions for Crop Rotation: 
Following Igran DF Alone: 
1) Sorghum atubble should be plowed (disk or moldboard) prior to 
planting the next crop. 
2) Rot at ional crops may be plant ed as follc.ws: 
4 months: winter wheat 
7 months or longer: all other crops -, 
following normal agricultural practices and planting dates. 
Following Igran OF + AAtrex and Igran OF + AAtrex + paraquat: 
1) Land treated with Igran OF + AAtrex should not be planted to 
any crop' xcept corn or sorghum until the following year, or 
injury may occur. 2) If applied after June 10, do not rotate 
with crl ps ~Ither than corn or sorghum the next year, or injury 
may occur. 3) Injury may occur to soybeans planted in north 
c~ntral ac,d northwest Iowa, sottth central and southwest 
Minnesota, sOllth2ast South Oakc,ta, and northeast Nebraska the 
year follo~ing an application on soils having a calcareous sur­
face layer. 4) 00 not plant sugar beets, ~obacco, vegetables 
(including dry beans), spring-seeded legumes, and g~asses the 
following year, or injury may occur. 
Following Igran DF + Milogard: 
Sorghum, cot ton, or corn may be planted 12 months after applica­
tion. All other crops may be planted 18 months after applica-
t ion. 
When applying Igran combinations, see the General Information 
section, caution statements, and precautions listed on the 
AAtrex and Milogard labels for further information. 
Chemical Fallow 
• • I AA ~r·e··x·· Wheat-Sorghum-Falow: AAtrex 4L (4LC), AAtrex SOW, or ~ 
Nine-O may be used to control annual weeds after wheat ha~v~t 
and in the following sorghum crop when grown under minimumut~l­
lage. Refer to the AAtrex label for directions, precautionD~ 
and limitations. :"u It" 
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-16-
Tank Mixtures for Wheat-Sorghum-Fallow 
If weeds are present at time of application (in late July or 
August following wheat harvest), Igran OF may be tar~ mixed with 
AAtrex to control existing annual weeds. Broadcast 2-2.5 Ibs. of 
Igran DF plus 6 pts. of AAtr~x 4L (4LC) (or 3.75 Ibs. of AAtrex 
sow, or 3.3 Ibs. of A~trex Nine-O) per acre. Add 1-2 pts. of a 
non:.onic surfactant (such as X-77) per 100 gals.-of spray mix­
ture Add Igran DF to the spray tank fIrst and thoroughly mix 
with the water. Then add the AAtrex, followed by the surfactant. 
Use the 2.5 lb. rate of Igran OF if weeds are 4-6 inches tall. 
This mixture will not control weeds taller than 6 inches. Plant 
sorghum into the wheat stubble the following spring with minimum 
dlsturbance of the SOlI. ~se ~ surface planter or a planter 
leaving a shallow furrow. If ~eeds are present at the time of 
sorghum planting, remove them with a sweep plow or other suitable 
implement before planting. Ref2r to the AAtrex label for further 
directions, precautions, and limltations. 
Note: To avoid illegal residues, do not graze or feed forage 
f~om treated areas. 
\~heat-Corn-Fallow (KS and NE:): AAtrex qL (4LC), AAtrex BOw, 'r 
AAtrex Nine-O may be used to control annual weeds after wtle It 
harverot and in the following corn crop when grown under minln,urn 
tillage. Refer to the AAtrex label for directions, precautions, 
and limitations . 
Tank Mixtures for Wheat-Corn-Fallow (KS and NE) 
If weeds are present at time of application (in late July or 
August following wheat harvest), Igran DF may be tank mixed with 
AAtrex and applied to control existing annual we~ds. Fcllow 
direct ions for use in t'le ftWheat-Sorghum-Fallow~ sect ion a~A'6t., 
fjubstitutillg corn for references to sor-ghum. • •••• • • ... , Wheat-Fallaw-Wheat (CO, KS,_ MT, NE, ID, so, and Wll: AAtrex .'1L 
(4LC), AAtrex BOW, or AAtrex Nine-O may be used for preeme~geQce 
control of annual weeds Juring the fallow period of a wheae J •• • 
fallow-wheat rotation. If AAtrex is applied alone in late •••• 
summer after wheat harvest, Igran OF may be applied the fotiowlng 
spring at 2-2.5 Ins.fA to control escaping weeds. Add 1-2 p~. 
of a nonionic surfactant (such as X-77) per 100 gals. of sg~t. 
mixture. Use the 2.5 lb. rate if ~ee~ti are 4-6 inches tall~' 
Igran OF will not control weeds tal leI:' tnan 6 inche..:, Treat:"w1th •••• Ig~an OF only once durinq the same fallow period, 
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-17-
and plant wheat no sooner than 4 months after application of the 
Igran OF alone and no sooner than 12 months after the AAtrex 
aepllcation. Refer to the AAtrex label for dlrections, precau­
tlons, and limitations. 
Tank Mixtures for Wheat-Fallow Wheat (CO, KS, MT, NE, ND, SD, 
and WY 
If weeds are present at time of application (normally in late 
July or August following wheat harvest), Igran OF may be tank 
mixed with AAtrex to control existing annual weeds. Broadcast 2-
2.5 Ibs. of Igran OF plus 1-2 pts. of AAtrex 4L (4LC) (or 0.6-
1.25 lbs. of AAtrex 80W, or 0.5-1.1 Ibs. of AAtrex Nine-O) per 
acre. Add 1-2 pts. of nonionic surfactant (such as X-77) per 
lOa gals. of spray mixture. Add Igran OF to the spray tank first 
and thoroughly mix with the water. Then add the AAtrex, followed 
by the surfactant. Use the 2.5 lb. rate of Igran OF if weeds are 
4-6 inches tall. This mixture will not control weeds ta!ler than 
6 inches. Treat with this tank mixture only once during the same 
fallow period. Use tillage to control weeds which escape c.uring 
the fallow period. Plant ~heat no sooner than 12 months after 
application. Refer to the AAtrex -1bel for Turther directlons, 
prec~utions, and limitations. 
Note: To avoid illeoal residues, do not feed forage or graze 
treated areas to liv~stocK for six months following application. 
Wheat-Fallow-Wheat, Sorghum-Fallow-Wheat (Great Plains, including 
OK, N. TX) 
Apply Igran UF preemergence or postemergence at 2-2.5 Ibs./A in 
the spring at the sta~t of tIle fallow period (as soon as possible 
following harvest in a winter wheat-f~llow-wheat rotation~t.,:Use 
the higher rate ... hen weeds are 4-6 inches tall. Igran DF 'will ,"'" 
not control weeds taller than 6 inches. Posi:emergence wee~"', ' : 
control is improved by addi.ng a nonionic surfactant, such as: 'X-77":": 
at 1-2 pts. per lOa gals. of spray mixture, an emulsifiabl~ qil " 
at 2-4 qts./A or ar> oil concentrate at 1-2 pts./A. Treat :o'~l.i ":" 
once during the fallow period, and do not plant wheat 6oonec"than" '" 
4 months after application (2 munths in Kan!ldG, Oklahoma, 'a.nd: .,:". 
northern Texas). Shallow cultivation or paraquat at 1-2 pt.s'./A + ',,' 
X-77 surfactant at 1-2 pts, per laO gals. of spray solutio,n'IIf"Y '''". 
be used to control weeds which escape or reinfest during t.H'" ' ,,',,' 
fallow season. ,," 
Not,,: To avoid illeqal res.idues, do not [ped qreen forage or: 
graze ,,-reated areas f(;r 6 mUfltt18 f,-}ll'J""'trl~ dppllcat ).,'1

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-lS-
Tank Mixes for Wheat-Fallow-Wheat (Great Plains, including OK, 
N. TX) 
For control of established weeds, tank mix Igran OF with on! of 
the following herbicides, or cCubble plow to control large 
, ,\ 
establ ished weeds. The folIc _ ng tank mixes wi 11 not con trol 
weeds taller than 6 inches. Use the higher rate of each product 
when weeds are 4-6 inches tall. Treat only once during the fal­
low period and do not plant wheat sooner than 4 month5 after 
application (2 months in Kansas, Oklahoma, and northern Texas). 
Shallow cultivation may be used to control weeds which escape 
during the fallow season. A nonionic surfactant, such as X-77 at 
1-2 pts. per 100 gals. of spray mixture, should be added to each 
tank mix. 
Note: To avoid illegal residues, do not feed green forage or 
graze treated areas for 6 months following applicatio~. 
paralua~: Apply 1-2 pts./A of paraquat in 
Ibs. A of 19ran DF if weeds are present at 
the pa~aquat label for further directions, 
rotation restrictions. 
tank mix with 2-2.5 
application. Refer to 
precautions, and wheat 
2,4-0: To avoid compatibility problems, do not tank mix Igran OF 
with 2,4-0 ester formulations. Tank mix Igran OF with 2,4-D 
amine formulations registered for use in wheat-fallow-wheat 
rotations. Apply 0.5 lb. active ingredient per acre of 7.,4-0 
amine in tank mix with 2-2.5 los./A of Igran OF. Refer to the 
2,4-0 amine labels for further directions, precautions, and wheat 
rotation restrictions. 
8ladex~ SOW: Apply 2 lbs./A ot Bladex SOW in tank mix with 
2-2.5 Ibs./A of Igran OF. Refer to the Bladex label for further 
directions, precautions, and wheat rotation restrictions. 
Sencor !50WP, 4, DF] (CO, KS, MT, NE, WYonly): Apply 0.5-0.67 
lbs./A of Sencor DF, 0.75-1 pt./A of Sencor 4, or 0.75-1 Ib./A 
of Sencor 50WP in tank mix with 2-2.5 Ibs./A of Igran DF. ,no not 
plant wheat sooner than 4 m()nths after application. Ref~r' to the 
Sencor labels for further directions, precautions, and wh3C~ 
rotation restrictions~ • 
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-19-
Noncrop Land 
Igran DF provides weed control on railroad righ:s-of-way and on 
other noncrop land sites. 
Apply Igran DF to emerged actively growing weeds not more than 
6 inches in height at 2.5-3 Ibs./A. Apply in at least 20 gals. 
of water per a~re. A !;urfactant such as X-77, DuPont WK, or 
Tronic may be added to the spray mixture at the rate of 2 qts.1 
100 gals. of spray '0.5% of spray volume). Cover weeds thor­
oughly with spray for good control. For extended weed control, 
19ran DF may be applied in tank mix combination with Atratol~ 
formulations 90 and BOW, and Princepe formulations (4L, 80W, and 
Caliber~ 90). Refer to the Atratol and Princep labels for use 
instructions for these [)roducts. 
Precautions: Do not use this product for nonselective weed 
control on land to be cropped, near adjacent desirable trees, 
shrubs, or rlants, or in greenhollses, or injury may occur. 
Note: Agitate Igran and Igran tank mixtures during the tank 
filling and spraying process. Empty the spray tank during the 
spraying operation. 
Storage and Disposal 
Store in a cool, dry place. Do not contaminate water, food, Or 
feed by storage, disposal. 
Pest icide: Pesticide wastes are toxic. Improper disposal of 
excess pesticide, spray mixture. or rinsate is a vi0lation of 
Federal Law. If these wastes cannot be disposed ot by use 
according' 0 13bel instructions, contact your State Pesticide or 
Environmen al Control Agency, or the Hazardous Waste Representa-
tive at tie nearest EPA Regional Office for guidance. "'" 
Container: Completely empty bag into application equipment: 
Then dispose of empty bag in a sanitary landfill or by inci~~ra­
tion, or if allowed by state and local authorities, by burt1ing. 
If burned. stay out of smoke. 
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-20-
Precautionary Statements 
Hazards to Humans and Domestic Animals 
CAUTION 
Harmful if swallowed, inhaled or absorbed through the skin. 
Causes eye irritation. Avoid c0ntact with skin, eyes, or 
clothing. Avoid breathing dus~. Wash thoroughly with soap 
and water after handling. Remove and wash contaminated 
clothing before reuse. 
Statement of Practical Treatment 
If Swallowed: Call a physician or Poison Control Center. 
Drink one or two glasses of water and induce vomiting by 
touching back of throat with finger. Do not induce vomiting 
or give anything by mouth to an unconscious person. 
If in Eyes: Immediately flush eyes with pleflty of water. 
Get medical attention if irritation develops or persists. 
If on Skin: Wash with plenty of soap and water. Get 
medical attention if irritation develops or persists. 
NOTE TO PHYSICIAN;, Ther.' is no specif ie ant idote for Igran 
DF. If this product is ingested, induce emesis or lavage 
stomach. The use of an aqueous slurry of activated charcoal 
may be considered. 
L-________________ , ________________________________________ __ 
Atratol~ trademark of elBA-GEIGY 
AAtrex~ trademark uf CIBA-GEIGY for atrazine 
Caliber~ traoemark of CIBA-GEIGY 
Igran~ trad~mark of C BA-GEIGY for terbutryn 
U.S. Patent No. 3,634,062 
Lexone e trademark of E. I. DuPont de Nemours & Co., Inc. f6r 
metribtl7.in 
Maxx e trademark of elBA-GEIGY 
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-21-
MilogarQ8 trademark of CIBA-GEIGY for propazine 
Nine-0 8 trademark of CIBA-GEIGY 
Princep8 trademark of elBA-GEIGY for simazine 
Sencor 8 trademark of the Parent Company of Farbenfabriken Bayer 
GmbH, Leverkusen, for metr~Duzin 
X-77 8 trademark of KALO Agricultural Chemicals,' Inc. 
01984 CIBA-GEIGY Corporation 
Agricultural Diyision 
CIBA-GEIGY Corporation 
Greensboro, North Carolina 27419 
CGA 26L3 October 23, 1984 
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