crop-chem-docs/corpus/epa_ppls/241-343.md

# TRI-4 HF HERBICIDE

- EPA Reg No: **241-343**
- Registrant: BASF AGRICULTURAL SOLUTIONS US LLC
- Signal word: Warning
- Active ingredients: Trifluralin (42.8%)
- Label accepted: 2004-03-23
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000241-00343-20040323.pdf

---
Rodney C. Akers, Ph.D 
BASF Corporation 
P.O. Box 400 
Princeton, NJ 08543-0400 
Dear Dr. Akers: 
MAR 23 2004 
SUBJECT: Label Amendment - Adding Rapeseed Use Back on Label 
Tri-4 HP Herbicide 
EPA Registration No. 241-343 
Your Application Dated July 9, 2002 
The label referred to above, submitted in connection with 
registration under the Federal Insecticide, Fungicide, and 
Rodenticide Act, as amended, is acceptable. The amended label 
supersedes all previously accepted labels. A stamped copy of the 
label is enclosed for your records. Please submit one copy of 
the final printed label before you release the product for 
shipment. 
Enclosure 
Sincerely yours, 
t S( 
Joanne I. Miller 
Product Manager (23) 
Herbicide Branch 
Registration Division (7505C) 
CONCURRENCES 
')17 
:::: 1 ~I~;;;:;~"'I""""""""""""""'I"'''''''''''' .. ·· .... ···· .. ·1 .............. · .... · ........ ·1 .. · .. ·· ............ ··· .. · .... 1 ...... · .. · ...... · .... · .... ·1 .. · ........ · .............. ·1· .. · ...... ·· .......... .. ..................... , .. "" ..... " .... ", ... "., .. ,.".,',., """.", .. ,.",.,."""", .... ,,",., ...................................................... , .. , ... ,., .. ,', .. ,', .. ,.,'" ... , .......... , ..... ' ..... ,." ........ ".,. 
DATE Mar 23 , 2004 ' 
EPA Form 1320-1 (12-70) OFFICIAL FILE COPY

BASF 
EMULSIFIABLE CONCENTRATE 
• 
herbicide 
A CEPTED 
MAR 23 2004 
SELECTIVE HERBICIOE FOR THE PRE-EMERGENCE CONTROL 
OF ANNUAL GRASSES ANO BROAOLEAF WEEDS 
ACTIVE INGREDIENT: 
TRIFLURALlN: a, a, a-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine .................. . 42.8% 
INERT INGREDIENTS·: ... 
TOTAL ................ . 
'Contains Petroleum Distillate 
Contains 4 pounds of active ingredient per gallon. 
EPA Reg. No. 241-343 
KEEP OUT OF REACH OF CHILDREN 
WARNING!/AVISOI 
57.2% 
................. 100.0% 
EPA Est. No. ???-??-??? 
Si usted no entiende la etiqueta, busque a alguien para que se la explique a usted en detalle. (If you do 
not understand this label, find someone to explain it to you in detaiL) 
See Inside for Additional Precautionary Statements 
See Directions for Use In,side 
in case of an emergency endangering life or property 
involving this product, call day or night 800-832-HELP. 
Net Contents: 110 Gallons 
BASF Corporation 
26 Davis Drive, Research Triangle Park, NC 27709

Precautionary Statements 
Generatlnformation 
Weeds and Grasses Controlled 
INDEX 
Soil Preparation ................... . 
Soil Texture 
Application Directions 
Ground Application 
Aerial Application 
Chemigation 
Incorporation 
Application with liquid Fertilizers .. 
Application with Dry Bulk Fertilizers 
Directions for Use 
Alfalfa 
Beans 
(Dry, Castor, Guar, Mungbeans, lima, Snap) 
Carrots . . . . . . . . . . . ............... . 
Celery , , , . , , , , , , , , . , , , . , , . , , , , , . , . , , , 
Cole Crops .. .. .. , .......... 
(Broccoli, Brussels Sprout, Cabbage, Cauliflower) 
Cotton ........ 
Cucurbits , ' . , , , , . , , , , , . , , , , , , , , , , , , , , , . , 
(Cantaloupes, Cucumbers, Watermelons) 
Field Corn, ' , , , , , , , , , 
Greens, . , ' , , , , , , . , . , , , , , , , , , 
(Turnip greens, Kale, Mustard greens) 
Grain Sorghum , 
Hops .. " .. , .. , .... , .... , ....... , .. 
Okra .. 
Peanuts. , 
Peas 
(English, Dry, Southern Peas) 
Peppers , , ' . . , . , , , , , , , , , , , , , . , . , . , , , , , , . 
Potatoes .. .. .. .. .... , .. 
Rapeseed (Canola) . . , , , , , , , . , 
Safflower ' , , , ' , ' 
Soybean, .. , 
Sugar beets ...... , ...... , .. 
Sugarcane ' , , . , , . , , , 
3 
3 
5 
5 
5 
5 
5 
6 
6 
6 
7 
7 
.. .. , .. 7 
8 
8 
8 
9 
9 
9 
9 
9 
.. ,10 
.... 10 
.. ,10 
, .. ,10 
, ' ,10 
...... 11 
...... 11 
.... , ........ 11 
""""""" ,13 
.... 13 
Sunflower .. ' .. . .. . .. .. , , .. ,13 
,13 
.. 13 
.. ,14 
Tomatoes, , . , , , , , , , , , . , , , ' , , , , , , , , , , , , , , , , , , , , ' , , 
Trees and Vineyards , , .. , , , , , , , , , , , , , , , , , , , , 
Wheat """"""""""""'", .. """",,' 
, (Winter, Spring, Durum) 
SpeCial Precautions , 
Disclaimer "" 
2 
.. ,14 
, , , ' ,14 
3/17

PRECAUTIONARY STATEMENTS 
HAZARDS TO HUMANS AND DOMESTIC ANIMALS 
WARNING 
Causes substantial but temporary eye injury. Harmful if swallowed or absorbed through 
the skin. Do not get in eyes or on clothing. Avoid contact with skin. Prolonged or fre­
quently repeated skin contact may cause allergic reaction in some individuals. 
FIRST AID 
IF IN EYES: Hold eye open and rinse slowly and gently with water for 15-20 minutes. 
Remove contact lenses, if present, after the first 5 minutes, then continue rinsing. Call 
a poison control center or doctor for treatment advice. 
IF ON SKIN OR CLOTHING: Take off contaminated clothing. Rinse skin immediately 
with plenty of water for 15-20 minutes. Call a poison control center or doctor feftreat­
ment advice. 
IF SWAllOWED: Gall a poison control center or doctor immediately for treatment 
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. 
IF INHALED: Move person to fresh air. If person is not breathing, call 911 or an ambu" 
lance, then give artificial respiration, preferably by mouth-to· mouth, if possible. Call 
a poison control center or doctor for further treatment advice. 
Have the product container or label with you when calling a poison control center or 
doctor, or going tor treabnent. 
NOTE TO PHYSICIAN: Because of increased risk of chemical pneumonia or pulmonary 
edema caused by aspiration of the hydrocarbon solvent. vomiting should be Induced 
only under professional supervision. 
Personal Protective Equipment (PPE): 
Some materials that are chemical-resistant to this product are made of any barrier 
laminate, butyl rubber, nitrile rubber or viton. If you want more options, lollow the 
instructions for category F on an EPA chemical resistance category selection chart. 
Mixers, loaders, applicator and all other handlers must wear: 
• long·sleeved shirt and long pants, 
• socks and shoes, 
goggles or face shield, and 
chemical resistant gloves 
Discard clothing and other absorbent materials that have been drenched or heavily 
contaminated with this product's concentrate. DO NOT reuse them. Follow manufac­
turer's instructioos for cleaning and maintaining PPE. If no such instructions for wash· 
ables, use detergent and hot water. Keep and wash PPE separately from other laundry. 
When handlers use closed systems, enclosed cabs, or aircraft in a manner that meets 
the requirements listed in the WOO;er Protection Standard (WPS) for agricultural pes· 
ticides [40 CFR 170.240 (d) (4-6)), ttle handler PPE requirements may be reduced or 
modified as specified in the 'NPS. 
User Safety 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 alld 
put on clean clothing. 
Remove PPE immediately after handling this product. Wash the outside of gloves 
before removing. As soon as possible, wash thoroughly and change into clean 
clothing, 
EtJVIRONr,1ENTAL HAZARDS 
This pesticide is extremely toxic to freshwater marine, and estuarine fish and aquat­
ic invertebrates including shrimp and oyster. DO NOT apply in a manner which will 
directly expose canals, Jakes, streams, ponds, marshes or estuaries to aerial drift. Do 
not contaminate water when disposing of equipment washwaters. 
DO NOT apply directly to water, or to areas where surface water is present or to inter­
tidal areas below the mean high water mark. 
PHYSICAL AND CHEMICAL HAZARDS 
DO NOT use or store near heat or open flame. 
This product is a mild reducing agent. 
DIRECTIONS FOR USE 
It is a violation of Federal law to use this proooct in a manner inconsistent with its 
labeling. DO NOT apply this product in a way that will contact workers or other per­
sons, either directly or through drift. Only protected handlers may be in the area dur­
ing application. For any requirements specific to your State or Tribe, consult the agency 
responsible lor pesticide regulation. 
3 
DO NOT apply this producllhrough any type of irrigation system unless the label instruc­
tions on chemigation are followed. 
AGRICULTURAL USE REQUIREMENTS 
Use this product only In accordance with jts labeling and with the Worker Protection 
Standard, 40 CFR part 170. This Standard contains requirements lor the protec­
tion of agricultural workers on farms, forests, nurseries, and greenhouses, and 
handlers of agricultural pesticides. It contains requirements for training, decon­
tamination, notification, and emergency assistance. It also contains specific 
instructions and exceptions pertaining to the statements on this label about per­
sona
 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 Pro1ectioo 
Standard. 
DO NOT enter or allow WOfker 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 thai has 
been treated. 
PPE required for early entry to treated areas that is permitled under the Worker 
Protection Standard and that involves contact with anything that has been treated, 
such as plants, sOit, or water, Is: 
• coveralls • chemical-resistant gloves • socks plus shoes 
STORAGE AND DISPOSAL 
DO NOT contaminate water, food or feed by storage or disposal. 
STORAGE, Avoid freezing. Store above 40°F. If frozen, poor weed control may result 
DO NOT store near heat Of open flame. 
PESTICIDE DISPOSAL. Wastes resulting from the use of this product maybe disposed 
of on site or at an approved waste disposal facility. 
CONTAINER DISPOSAL FOR 2,5 GALLON, DO NOT reuse empty containers. Triple 
rinse (or equivalent). Then offer for recycling or reconditioning, or puncture and dis­
pose of in a sanitary landfill, or Incineration, or if allowed by state and local authori­
ties, by burning. If burned, stay out of smoke. 
CONTAINER DISPOSAL FOR BULK. Return empty container to point of purchase. 
GENERAL INFORMATlOIJ 
TRI-4 HF Is a herbiCide which when incorporated Into the soil provides Iong·lasting 
control of annual grasses and broad leaf weeds; it controls weeds by killing their seeds 
as they germinate, It does not control established weeds. incorporation of TRI·4 HF 
assures effective control regardless of weather conditions and permits shallow culti­
vation, rotary hoeing and hand hoeing without reducing its weed control activity. 
Following the use of this product and chemically related products with the same mode 
of action, naturally occurring biotypes· of some of the weeds listed on this label can­
not be effectively controlled by this and related products. This product should betank­
mixed or applied sequentially with an appropriate registered herbicide having a different 
mode of action to ensure control of resistant biotypes. 
"A weed biotype is a naturally occurring individual within a given species that has a 
slightly different, but distinct genetic makeup from other individUals. 
See your BASF representative for additional information, 
WEEDS AND GRASSES COtJTRIJLLED 
·11 :"l,l'4 Ii "' iiIi:".' "",' ~~ ~j~~'" '~:" '" \ """,7 
Annual bluegrass 
Barnyardgrass (Watergrass) 
Brachiaria (Signalgrass) 
Bromegrass (Cheatgrass, Downy brome) 
Cheal (Chess) 
Crabgrass (Large crabgrass, Smooth crabgrass) 
Fall panicum 
Foxtails (Bottlegrass, Bristlegrass, Giant foxtail, 
Green foxtail, Pigeon grass, Robust foxtail, 
Yellow foxtai~ 
Goosegrass (Silver crabgrass, Silvergrass, 
Wlregrass, Yardgrass) 
Guineagrass 
Johnsongrass (Seedling and Rhizome) 
Junglerice 
R.oulgrass (llchgrassl 
Sandbur (Burgrass) 
Sprangletop 
Stinkgrass (Lovegrass) 
Poaannua 
£Chinochloa sp. 
Brach/a!fa sp. 
Bromus tectorum 
Bromus secallnus 
Digitaria sp. 
Panicum dichotom. 
Setaria sp. 
8eusine indica 
Panicum maximum 
SO<!Ihum haJepense 
Echinochloa col. 
""ffboellia 1iX1l1/. 
Cenchrus incertus 
Leptoch/oa fililor. 
Eragrostis ci/ian.

Convolvulus arvensis 
TRI-4 HF, in mixture with other products, will control the following additional weeds: 
TRI-4 HF/SENCOR' OR LEXONE' TANK-MIX 
I 
, I 
Control of cocklebur, morningglory and giant ragweed may be erratic ranging from 
poor to excellent depending upon soil temperature, time of weed germination, depth 
of weed seed in the soil and amount and timing of 5011 moisture. Control may be 
improved with timely cuttivation. 
TRI-4 HF/SCEPTERe PREPLANT TANK-MIX OR OVERLAY 
(see Soybean section for instructions) 
__ .iiii._",:a_lii:IiI!ii!l~li!~. 
Cocklebur (Common)"* Xanthlum strumarlum 
Jimsonweed Datura stramonium 
Momingg~ry 
(Pitted) 
(SmalW~wer) 
Mustard N/iJd) 
Nightshade (Eastern Black)· 
Pigweeds 
(Palmer)"' 
(Smooth)" 
(Tall waterhemp)"* 
Poinset1ia (lNild)·· 
Ragweed 
(Common) 
(GianQ' 
Smartweed (Ladyslhumb) 
Smartweed (Pennsylvania) 
Sunflower (Common) 
Vetvetlear 
Venice Mallow 
·Controlled by preplant incorporated treatments only. 
Ipomoea lacunosa 
Jacquemontia famnifolia 
Brsssic8 kaber 
Solanum nigrum 
Amaranthus palmeri 
Amarsnthus hybridus 
Amaranthus tuberculafos 
Eup/wrbia hetrophylfa 
Ambrosia artemisiilolia 
Ambrosia trifida 
Polygonum persicaria 
Pofygonum pensy/vanicum 
Helianthus annuus 
Abut/Ion theophrasti 
Hibiscus monum 
4 
"May also be controlled by preplant ilx:orporation wnh TRI-4 HF followed by postemer­
gence treatment of SCEPTER. 
® Registered Trademaf1(: of BASF 
TRI-4 HF/EPTAM'TANK-MIX 
1lllll1IIIII1IIii(sllleeill
D
lll
ryl1! Bean section for Instructions) 
!_§.iIliiiiIMMilllll!l1_I_~iill._14 
Henbit Lam/urn ampJexicale 
Nightshade, black Solanum nigrum 
Nightshade, hairy Solanum SBrracooides 
Nutsedge (Nutgrass, Purple nutsedge, 
Yellow nutsedge) Cyperos sp. 
Wild oat Avena lafua 
TRI-4 HF/CAPAROL' TANK-MIX 
(see Cotton section for Instructions) 
1 __ .IIIIII'lIIIn_l'Illll1l11. 
$martweed Po/ygOnum pensylvanicum 
Prickly slda (Teaweed) Sida spinosa 
Annual morningglory Ipomoea sp. 
Ragweed, common Ambrosia artemisiifo/ia 
Groundcherry, annual Physalissp. 
Mustard, wild mustard Brassica kaber 
Malva Malva sp. 
Wild oat Avena latua 
The tank mix also controls shallow germinating seedlings of cocklebur and coffeeweed, 
TRI-4 HF/COTORAN' TANK-MIX OR OVERLAY 
(see Cotton section for i 
AbuUlan 
Coc~ebur 
Goathead 
:BniiiiBI ~ 
Datu",. 
I I , annual 
, SDinosa 
Ragweed 
Ryegrass ·umso. 
Sesbania Sesbania 8X1Jitata 
SicKlepod 
TI 
Velvetleaf Abutlion lt1eop/Jrastl 
TRI-4 HF PREPLANT FOLLOWED BY KARMEX' OVERLAY 
_.:,~=~sieictiioln .folr Ilnslitr~ucitio~n,S)~~~II!I. 
Dogfennel Eupatonlum capilllfO/lum 
Groundcherry, annual 
Morningglory, annual 
Pennycress 
Ragweed 
Shepherdspurse 
Velvetgrass 
Wild lettuce 
Wild mustard 
Physalis SO. 
Jpomoeasp. 
Thiaspisp. 
Ambrosia arlemisiifolia 
C8pseJJa bursa pastoris 
Hulcus !anafus 
Lacfuca sp. 
8rassica kaber 
TRI-4 HFNERNAM' TANK-MIX 
, . ~~~~~ ,~eanut sections :or instructions) .' , III ... 11' J,iII/iI ___ HII 
Morninggiofy, annual Ipomoea sp. 
Cotfeeweed Sesbania exaltata 
Purple nutsedge Cyperus rotundus 
Yellow nutsedge Cyperus escu/enfus 
Velvetleaf Abufifon theophrasti

SOil PREPARATION 
A good soil preparation is essential for best results: destroy existing weeds before her­
bicide application. Chop and thoroughly mix crop residues into the soil to a depth of 
at least 4 to 6 inches by deep plowing or discing before application. Use machinery 
that breaks up large clods. 
SOil TEXTURE 
Before application. determine soil texture In order to apply the correct rate. Rates giv­
en in this booklet refer to the following soil texture groups: 
COarse soils: sand. loamy sand, sandy loam 
Medium soils: loam, silty clay loam, silt loam, silt, sandy clay loam 
~- ---.-~,.-~-~-~ Silty clay loam and sandy clay loam soils are transitional soils and may be classified 
as either medium or fine rextured soils. If silty clay loam or sandy clay loam soils afe 
predominantly sand or silt, they are usually classnied as medium textured soils. If Ihey 
are preckJminantly clay, they are usually classified as flne textured soils, 
APPLICATION DIRECTIONS 
TRI-4 HF is an emulsifiable concentrate which must be mixed with water and applied 
as a spray before or In the same operation as soli incorporation, 
When TRI-4 HF Is used In combination with another herbicide, refer to the respective 
label for rates, methods of application, proper timing, weeds controlled, restrictions 
and precautions. Always use in accordance with the more restrictive label restrictions 
and precautions, No label dosage rates should be exceeded. TRI-4 HF cannot be mixed 
with any product containing a label prohibition such mixtures. 
GROUND APPLICATION 
Apply in 1 0 to 40 gatloos of water/acre (broadcast basis) using any properly callbrat­
ed low-pressure sprayer that will uniformly apply the spray. Pour the recommended 
amount of product into the spray tank during the filling operation and mix thoroughly 
before spraying, As the amount of water decreases, the importance of accurate cal­
ibration and uniform appllcatioolncreases, Check the sprayer daily. 
Do not apply the herbicide to soils wt11cl1 are wet or in poor condition or to soils which 
are subject to prolonged periods of flooding, 
AERIAL APPLICATION 
For best results apply to a dry soil surface at a spray volume of from 5 to 10 gallons/ 
acre. Adjust pump pressure, nozzle arrangements, flying speed and height to provide 
uniform application. Use mar1'iers or flagmen to assure proper application spray widths. 
Do not apply when the wind is blowing at a velocity of 5 mph 0( greater. 
Avoiding spray drift at the application site is the responsibility of the applicator. The 
interaction of many equlpment-and-weatller-related factors determine the potential 
for spray drift. The applicator and the grower are responsible for considering all these 
factors when making decisions. 
The following drift management requirements must be followed to avoid off-targetdrift 
movement from aerial appllcations to agricultural field crops, These requirements do 
not apply to forestry applications, public health uses or to applications using dry 
formulations. 
1. The distance of the outer most nozzles on the boom must not exceed 3/4 the length 
of the wingspan or rolDr. 
2, Nozzles must always point backward parallel w~h the air stream and never be point-
ed downwards more than 45 degrees. 
Where states have more stringent regulations, they should be observed. 
The applicator should be familiar with and take into account the information covered 
in the Aerial Drift Reduction Advisory Information. 
Information on Droplet Size 
The most effective way to reduce drift potential is to apply large droplets, The best 
drift management strategy is to apply the largest droplets that provide sufficient cov­
erage and control. Applying larger droplets reduces drift potential, but will not prevent 
drift if applications are made Improperly, or under unfavorable environmental condi­
tions (see Wind, Temperature and Humidity, and Temperature Inversions). 
ContrOlling Droplet Size 
• Volume· Use high flow rate noules to apply the highest practical spray volume. 
Nozzles with higher rated flows produce larger droplets. 
Pressure - Do not exceed the nollie manufacturer's recommended pressures. For 
many nozzle types lower pressure produces larger droplets. When higher flow rates 
are needed. use higher flow rate nozzles instead of increasing pressure. 
5 
• Number of nozzles - Use the minimum number of nozzles that provide uniform 
coverage. 
• Nozzle Orientation· Orienting noules so that the spray is released parallel to the 
airstream produces larger droplets than other orientations and is the recommended 
practice, Significant deflection from horizontal wilt reduce droplet size and increase 
drift potential. 
• Nozzle Type -Use a nozzle type that is designed for the intended application. With 
most nozzle types, narrower spray angles produce larger droplets, Consider using 
low-drift nozzles. Solid stream nozzles oriented straight back produce the largest 
droplets and the lowest drift. 
Boom length 
For some use patterns, reducing the effective boom length to less than 3/4 of the 
wingspan or rotor length may further reduce drift without reducing swath width. 
Application Height 
Applications should not be made at a height greater than 10 feet above the top of the 
largest plants unless a greater height is required for aircraft safety. Making applica­
tions at the lowest height that is safe reduces exposure of droplets to evaporation and 
wind. 
Swath Adjustment 
When applications are made with a crosswind, the swath will be displaced downwind. 
Therefore, on the up and downwind edges of the field, the applicator must compen­
sate fO( this displacement by adjusting the path of the aircraft upwind. Swath adjust­
ment distance should increase, with Increasing drift potential (higher wind, smaller 
drops, etc.). 
WInd 
Drift potential is lowest between wind speeds of 2· 10 mph. However, many factors, 
including droplet size and equipment type determine drift potential at any given speed. 
Application should be avoided below 2 mph due to variable wind direction and high 
inversion potential. NOTE: local terrain can influence wind patterns. Every applicator 
should be familiar with local wind patterns and how they affect spray drift. 
Temperature and Humidity 
When making applications in low relative humidity, set up equipment to produce larg­
er droplets to compensate for evaporation. Droplet evaporation is most severe when 
conditions are both hot and dry. 
Temperature Inversions 
Appllcations should not occur during a temperature Inversion because drift potential 
is high. Tempernture inversions restrict vertical air mixing, which causes small sus­
pended droplets to remain in a concentrated cloud, This cloud can move in unpre­
dictable directions due to the light variable winds common during inversions. 
Temperature inversions are characterized by increasing temperatures with aMude and 
are common on nights with limited cloud cover and light to no wind. They begin to 
form as the sun sets and often continue into the morning. Their presence can be indi­
cated by ground fog; however, if fog Is not present, inversions can also be identified 
by the movement of smclul from a ground source or an aircraft smoke generator. Smoke 
that layers and moves laterally in a concentrated cloud (under low wind conditions) 
indicates an Inversion, while smoke that moves upward and rapidly dissipates indi­
cates good vertical air mixing. 
Sensitive Areas 
The pesticide should only be applied when the potential for drift to adjacent sensitiw 
areas (e,g. residential areas, bodies of water, known habitat for threatened or endan­
gered species, non-target crops) Is minimal (e.g. when wind is blowing away from the 
sensitive areas). 
APPLICATION THROUGH OVEHHI fill SPfllNKlER 
IRRIGATION SYSTE~~S (CIIEMIGATION) 
TRI-4 HF can be applied through moving, properly equipped sprinkler Irrigation sys­
terns for weed control in several crops. Soil incorporation is not required with TRI-4 HF 
when applied through sprinkler irrigation when 0.5-1 Inch of irrigation is applied 
depending on the crop_ Read and follow all label instructions before application. 
Apply this product only through continuously moving center pivot, lateral move, or end 
row sprinkler irrigation systems, DO NOT APPlY THIS PRODUCT THROUGH Mrf OTH­
ER TYPE OF IRRIGATION SYSTEM, 
Crop injury, lack of effectiveness, or illegal pesticide residues in the crop can result 
from non-uniform distribution of treated water. 
If you have questions about calibration, you should contact State Extension Service 
Specialists, equipment manufacturers or other experts. 
The irrigation system must be correctly calibrated (with water only) to ensure that the 
recommended rate of TRI-4 HF is app!\ed. 
DO NOT CONNECT AN IRRIGATION SYSTEM (including greenhouse systems) USED 
FOR PESTICIDE APPLICATION TO A PUBLIC WATER SYSTEM UNLESS THE PESTICIDE 
LABEL PRESCRIBED SAFETY DEVlCES FOR PUBLIC WATER SYSTEMS ARE IN PLACE. 
t1t7

A person knowledgeable of the chemigation system and responsible for its operation, 
or under the supervision of the responsible person, shall shut the system down and 
make necessary adjustments should the need arise. 
The system should have properly working nozzles providing the recommended output 
and pattern, The chemigation system should also be free of leaks. 
Overhead Sprinkler Irrigation System Requirements 
1. The system must cootain a functiOnal check valve, vacuum relief valve, and low 
pressure drain appropriately located on the irrigation pipeline to prevent water 
source contamination from back flow. 
2, The pesticide injection pipeline must contain a functional, automatiC, quick-closing 
check valve to prevent the flow of fluid back toward the injection pump. 
3. The pesticide injection pipeline must also contain a functional. normally closed, 
solenoid-operated valve located on the intake side of the injection pump and con­
nected to the system interlock to prevent fluid from being withdrawn from the sup­
ply tank when the irrigation system is either automatically or manually shut OOwn. 
4. The system must contain function Interlocking controls to automatically shut off 
the pesticide injection pump when the water pump motor stops. 
5, The irrigation line or water pump must include a functional pressure switch which 
will stop the water pump motor when the water pressure decreases to the point 
that pesticide distribution Is adversely affected. 
6. Systems must use a metering pump, such as a positive displacement injection pump 
(e.g., diaphragm pump) effectively designed and constructed of materials that are 
compatible with pesticides and capable of being fitted with a system interlock. 
7. Do nol apply when wind speed favors drift beyond the area intended for treatment. 
The following routine checks will help to ensure that the sprinkler Irrigation 
system is working properly: 
1. Use a calibrated injection metering pump as specified by the manufacturer. 
2. Metering pump, the supply tank, and any associated equipment must be clean and 
dry before adding undiluted TRI-4 HF to the system for injection. 
3. Check the metering pump periodically to confirm that TRI·4 HF is being injected 
continuously and at the proper calibration throughout the irrigation period. 
4. Continuous agitation must be maintained in the supply tank during the entire over-
head 5p(inkler irrigation period. 
Use of this product could stain irrigation equipment and eqUipment assoclatw 
ed with the use or TRl
w
4 HF. 
CHEMIGATION MIXING DIRECTIONS 
Undiluted T8I-4 HF: Chemlgation equipment must be completely cleaned and dry 
before TRI·4 HF is added to the system for injection. Continuous agitation must be 
engaged throughout the injection of undiluted TRI-4 HF into the injection tank. 
Diluted TRl
w
4 HF: Diluted TRI-4 HF can be used for the calibration of irrigation equip­
ment. The volume of TRI-4 HF added to the injection tank Is equal to what is required. 
Agitation must be started prior to the addition of TRI-4 HF to the water. Next fill the 
supply tank with the remainder of water that Is needed fOf equipment calibration. 
Continuous agitation must be engaged throughout the injection of TRI-4 HF into the 
injection tank, 
DO NOT APPLY TRI-4 HF THROUGH AllY IRRIGATION SYSTEM IF THESE DIREC­
TIONS ARE NOT FOllOWED CAREFULLY. 
INCORPORATION 
Before planting. 
For best results the herbicide must be incorporated within 24 hours after application. 
A second incorporation is required al any time prior 10 planting using the equipment 
in a different direction from the first. Incorporation should place the product into the 
top 2 or 3 inches of the final seedbed. 
Variable weed control may result from delayed incorporation if the herbicide is applied 
to a wet. warm soil suriace or if the wind velocity is 10 mph or higher. 
After planting. 
When incorporating after planting (check crops approved for incorporation after plant­
ing), use P.T.O.·driven equipment or Rolling Cultivators and adjust to till the soil over 
the seed or throw treated soil toward the crop. Avoid disturbing the seed or mechan­
ically damaging the crop. 
In bedded culture. 
For effective weed control in bedded culture the product should be incorporated into 
the top 2 to 3 inches of the final seedbed. 
Knock off beds to planting height before application and incorporation on bedded 
ground. Avoid removal of treated soil from the seedbed before or during the planting 
operation. This will expose untreated soil and allow weeds to germinate in the drill 
row. 
6 
Equipment. 
For incorporation use machinery which pulverizes large clods and mix the herbicide 
thoroughly with the soil. Thorough Incorporation may be achieved with the following: 
disc, set to cut 410 6 inches deep and operated in two different directions at 4 to 6 
mph; field cultivator, set to cut 3 to 4 inches deep and operated at 5 mph or more: 
rolling cultivator, set to cut 2 to 4 inches deep and operated two times at 6 to 8 mph 
(adequate for use on coarse or medium textured soils only); bed conditioner, set to 
cut 2 to 4 inches deep and operated one time at 4 to 6 mph (adequate for use on 
coarse and medium teldured soils only); mulch treader and other similar disc-type 
implements, set to cut 3 to 4 inches deep and operated at 5 to 8 mph in two differ­
ent directions; P.T.O.-drlven equipment (tillers, cultivators. hoes), set to cut 2 to 3 
inches deep with rotors spaced to provide a clean sweep of the soil and operated one 
time (they should not be operated at a speed greater than 4 mph). 
APPLICATION WITH LIQUID FERTILIZERS 
TRI-4 HF may be mixed with most liquid fertilizers. The mixture has provided weed 
and grass control equal to the same rates of TRI-4 HF applied in water. 
All individual state regulations relating to fluid liquid fertilizer mixing, registration, label­
ing and application are the responsibility of the individual andlor company selling the 
fertilizer and chemical mixture. 
TRI·4 HF alone or In tank-mixture may not combine properly with some fluid fertiliz­
er material. Therefore, it is necessary to determine whether a compatibility agent is 
needed and which agent works property, testing small quantities before full-scale 
mixing. 
1. Put 1 pI. of fertilizer mixture in a quart jar. 
2. Add 1 to 4 teaspoonfuls of the formulation which must be mixed to the liquid fer­
tilizer (depending on the recommended rate/acre). 
3. Close jar and agitate until the materials are dispersed evenly in the fertilizer. If the 
materials do not disperse well, slurry the chemicals in water before adding to the 
fertilizer. 
4. Add 3 to 4 teaspoonfuls of TRI-4 HF to the jar and shake well. 
5. Watch the mixture for about 1 0 minutes. If the mixture does not separate, or if agi­
tation is only required to resuspend, the combination may be used. If the mixture 
separates. gets very thick or syrupy, do not combine for field application. A com­
patibility agent Is needed. 
6. Mixing ability may be improved by adding a compatibility agent. Follow the proce­
dure outlined above and add 0.1 teaspoonful of the compatibility agent in step 2. 
Complete the other steps to detennine if the compatibility agent solves the problem. 
The use of compatibility agents is especially important when tank mixing emulsifiable 
concentrates with dry flowables, wettable powders, aqueous suspensions, flowables, 
liquids or solutions in liquid fertilizers. 
If a compatibility agent is needed, add it to the fluid fertilizer before adding the 
TRI-4 HF alone or In mixture. 
Anyone of the compatlbllity agents listed below is helpful in causing liquk1 concen­
trates to form non-oUing mixtures with liquid fertilizers. These compatibility agents 
can be used at rates as low as 1 112 to 2 pints per ton of liquid fertilizer and should 
be mixed well wilh the fertilizer before adding the liquid concentrate. Read the label 
on the compatibility agent and follow the directions. 
1. Sponto 1680 (Witco Chemicals Co., Chicago, IL) 
2. Compar (Farm Chemicals, Inc., Aberdeen, NC) 
3. Unite (Hopkins Ag Chemical, Madison, w~ 
4. T-Mulz 734-2* (Thompson-Hayward Chemical Co.) 
5. Rigo Compatibility Agent (Rlgo Company, Buckner, KY) 
6. Amoco Spray Male' (Amoco Oil Co., Ch~ago, IL) 
7. Kam-link (Universal Coop, MinneafK)lis, MN) 
'DO NOT use in California 
All of the above are phosphate, ester-type surfactants designed to be used with liq­
uid fertilizers. They usually 00 not work as compatibility agents In tank mfxlures in 
plain water. 
Follow normal application procedures to apply and incQfPOrate, 
APPLICATION WITH DRY BULK FEHTILIZERS 
Dry bulk fertilizers may be impregnated or coated with TRI-4 HF. Application of dry 
bulk fertilizers impregnated with TRI-4 HF has provided weed and grass control equal 
to the same rates of TRI-4 HF applied in water. 
All TRI-4 HF label recommendations regarding rates/acre, approved crops, incorpo­
ration, special Instructions, cautioos and special precautions must be followed. All indi­
vidual state regulations relating to dry bulk fertilizer blending, registration, labeling 
and application are the responsibility of the individual and/or company selling the ler· 
tlllzer and chemical mi){\ure. 
7/17

Limitations. 
Apply a minimum of 200 pounds/acre of dry fertilizer impregnated with TRI-4 HF at 
the recommended rates. Any commonly used dry fertilizer can be used for TRI-4 HF 
impregnation except coated ammonium nitrate and straight limestone. These mate­
rials will not absorb the herbicide. Blends containing mixtures of these materials can 
be impregnated. 
Impregnation. 
Use any closed drum, bett, ribbon or other commonly used dry bulk fertilizer blender. 
Provide uniform spray coverage of TRI-4 HF on to the fertilizer. 
Rates. 
Check the crop section to determine the rate of TRI-4 HF/acre. See the rate table which 
follows to determine amount of TRI·4 HF to be impregnated on a ton of dry bulk fer­
tilizer based on the amount of fertilizer which will be applied/acre. 
Application. 
Spread the fertilizer/chemical mixture normally with a properly calibrated applicator. 
Be certain the material is applied uniformly to the soil suriace. 
Incorporation. 
Follow normal incorporation procedures. 
Rate Chart for Impregnating Fertilizer with TRU HF 
Fertilizer TRI~4 HF added to a ton or fertilizer 
Rate per Acre 1 pt. 1112 pt •. 2 pt •. 3 pts. 4pts. 
200 pounds 5 71/2 10 15 20 
qts./ton qts./ton qts.lton qt • .llon qts.lton 
250 pounds 4 6 8 12 16 
qts.!ton qts.lton qts.llon qts.lton qts.lton 
300 pounds 31/3 5 62/3 10 131/3 
qts./ton qts.!ton qts.!ton qts.l1on qls.lton 
350 pounds 2314 41/4 5314 81/2 111/2 
qts./ton qts./ton qts.lton qts.lton qts.lton 
400 pounds 2 1/2 3314 5 7 1/2 10 
qts./ton qts.~on qIs.lton qts./ton qts./ton 
450 pounds 2 1/4 31/3 41/2 62/3 9 
qts.~on qts.llon qts.~on qts.iton qts.llon 
For rates other than those listed above. use the following formula to calculate the 
amount of TRI~4 HF to be impregnated on a ton of dry bulk fertilizer: 
Pints of 1000 Quarts TRI-4 HFI 
TRI-4 HF/acre X lbs. fertilizer/acre = Ton of fertilizer 
APPLICATION DIRECTIONS 
Where applicable, rates are given for Eastern United States and Western United States. 
The dividing line between Eastern and Western States is the point where the average 
rainlalVyear is a minimum of 20 to 25 inches. 
Rates are given for broadcast applicatkln; forband application use proportional amount 
of product. 
ALFALFA (Established) 
Postemergence Incorporated 
Use restricted to Western U.S. only. 
Apply to established alfalfa stands at a broaclcast rate/acre of 1 1/2 pis. on coarse 
soil and 2 pts. on medium and fine soils. Use incorporation equipment that will ensure 
thorough soil mixing With a minimum of damage to the established alfalfa. 
Chemlgatlon Applications to Established Alfalfa 
Annual grass control can be achieved through sprinkler irrigation or broadcast sur­
face applications. 
Broaclcast applications may be made to the soil suriace in established alfalfa. However, 
the TRI·4 HF must be activated by moisture through rainfall, or Irrigation. At least 0.5 
inches of moisture is required by rainfall Of overhead sprinkler irrigation to activate 
TRI-4 HF for weed control. When furrow irrigation is used, field inspection should be 
done to ensure that the beds are thoroughly wet between the furrows. In situations 
where rainfall has no1 occurred lor3 days mechanical incorporation can be done, how­
ever, in such a way that ensures thorough soil mixing while eliminating or minimizing 
potential damage to established alfalfa. 
Applications during dormancy, semi-dormancy or immediately after cutting can be 
made during the growing season. Applications of TRI-4 HF will not control established 
weeds, therefore timing of application should occur prior to weed seed germination. 
To control cheat and Bromegrass, apply TRI-4 HF immediately after cutting between 
August 1 and October 1, before weeds emerge. If applied in the fall TRI-4 HFwili con­
trollabeled weeds that germinate after application. 
7 
Weeds controlled when TRI·4 HF is applied through overhead sprinkler irrigation. 
barnyardgrass downy brome crabgrass foxtail sandbur 
cheat canarygrass cupgrass junglerice wild barley 
APPLICATION RATE/ACRE FOR TRI-4 HF 
IS UP TO 4.0 PINTS ON ALL SOILS. 
DO NOT harvest or graze alfalfa within 21 days of application. Apply up to 4 pints per 
acre per season. Plant crops only that are labeled for preplant applications as rota­
tional crop injury could occur the following season. 
Tank-mixes: TRI-4 HF may be tank mixed with any pnxluct registered for use on alfal­
fa or applied as part of a sequential awlication. Refertothe tank-mix product for rates, 
weeds controlled, precautions, and restrictions. 
BEANS 
DRY BEANs--cASTOR BEANS 
Apply and Incorporate before planting at the following: 
Broadcast rate/acre 
Soil Texture Eastern U.S. Western U.S. 
Coarse 1 pt. 1 pt. 
Medium 1 1/2 pts. 11/4 ·11/2 pts. 
Fine 2 pis. 11/2 pts. 
2 to 5% organic matter 11/2·2pts. 1 112·2 pis. 
5.1 to 10% organic matter 2 pis. 2 pis. 
Fall application. 
For dry beans grown in Idaho, Oregon, Washington only, apply any time between 
October 15 and December 31 at a broadcast rate/acre of 1 pt. on coarse soil, 1 1/4 
~ 1 1/2 pts. on medium soil, 1 1/2 pts. on fine soil. 
TRI-4 HFIEPTAM TANK-MIX 
FOR DRY BEANS 
Apply from two days before planting (up to planting in the Eastern U.S.) at the following: 
Broadcast rate/acre 
TRI-4 HF 
Soli Texture Eastern U.S. W_mU.S. EPTAM7E 
Coarse 1 pt. 1 pI. 2112·31I2pls. 
Medium 1 112 pis. 11/4 ·1112 pis. 21/2·3112 pis. 
Fine 2 pis. 11/2 pis. 2112·3112 pIs. 
2 to 5% organic matter 11/2·2pts. 11/2·2pts. 21/2·3112 pts. 
5.11010% 
organic matter 2 pis. 2 pt •. 21/2·3112 pis. 
Precautions: This combination should not be used on soybeans, black-eyed peas 
(beans), lima beans and other flatpodded beans except Romano. 00 
not use the foliage from a crop treated with this tank-mix for feed or 
for grazing. 
Observe all directions, precautions and limitations on both products' labeling. 
GUAR BEANs-MUNGBEANS 
Apply and incorporate before planting at a broadcast rate/acre of 1 pt. on coarse soil, 
1 1/2 pts. on medium and fine soils. 
LIMA BEAN5-SNAP BEANS 
Apply and incorporate before planting at a broaocast rate/acre of 1 pt. on coarse and 
medium soils and 11/2 pts. on nne soils. 
CARROTS 
Apply and incorporate before planting at the following: 
Broadcast rate/acre 
Soli Texture Eastern U.S. Western U.S. 
Coarse 1 pt. 1 pI. 
Medium 11/2pls. 11/4· 11/2 pis. 
Fine 2 pis. 1112 pts. 
2 to 5% organic matter 11/2·2pls. 11/2·2pts. 
5.1 to 10% organic matter 2 pis. 2 pis.

CELERY 
Both direct-seeded and transplant. 
Apply and incorporate before planting or transplanting at the following: 
Broadcast ratelacre 
Soil Texture Wes1emU.S. 
Coarse 1 pt. 
Medium 1 1/4 - 1 1/2 pis. 
Fine 11/2 pis. 
2 to 5% organic matter 11/2 - 2 pis. 
5.1 to 10% organic matter 2 pis. 
COLE CROPS - BROCCOLI, BRUSSELS SPROUT, 
CABBAGE, CAULIFLOWER 
For transplants, apply and incorporate before transplanting at the following: 
Broadcast rate/acre 
Soil Texture Eastern U.S. Western U.S. 
Coarse 1 pt. 1 pt. 
Medium I 1/2 pis. 1 1/4 - 11/2 piS. 
Fine 2 pis. 11/2 pIs. 
2 to 5% organic matter 11/2pts. 11/2-2pls. 
5.1 to 10% organic matter 2 pis. 2 pIS. 
For direct·seeded, apply and incorporate before planting at the following: 
Broadcast rate/acre 
SoU Texture Eastern U.S. Western U.S. 
Coarse 1 pI. 1 pI. 
Medium 1 pI. 1 pI. 
Fine 1 112 pis. 1 pI. 
2 to 5% organic matter 1 1/2 pts. 
5.1 to 10% organic matter 11/2 pIs. 
Direct-seeded cole crops have exhibited marginal tolerance to recommended rates. 
Stunting Of reduced stands may occur. 
COTTON 
Pre-plant application. Apply and Incorporate before planting at the following: 
Broadcast rate/acre 
Soli Texture Eastern U.S. Western U.S. 
Coarse 1 pt. 1 pt. 
Medium 1 112 pis. 1 1/4 - 11/2 pts. 
Fine 2 pis. 11/2 pts. 
2 to 5% organic matter 1 112 piS. 11/2 - 2 pis. 
5.1 to 10% organic mat1er Do Not Use 2 pIS. 
Post·emergence application. 
Apply anytime up to layby but not less than 90 days before harvest. Direct layby appli· 
cations to the soil between the rows and beneath emerged cotton plants. lise the same 
rates as for pre·plant application. , 
Fall application. 
Any time from October 15 to December 31. 
• In Alabama, Arkansas, Northern Florida, Georgia, Louisiana, Mississippi, SE 
Missouri bootheel, New Mexico, North Carolina, Oklahoma, South Carolina, 
Tennessee, Texas: apply and incorporate at a broadcast rate/acre of 2 pts. on coarse 
and medium soils. 
• In Arizona, California, Nevada, apply and incorporate at a broadcast rate/acre of 
1 1/2 pts. on coarse soil, 2 pts. on medium soil. 
8 
• In states other than those listed above, apply and incorporate at a broadcast 
rate/acre of 1 pt. on coarse soil, 1 1/2 pts. on medium soil, 2 pts. on fine soil, 
1 1/2 pts. on soils with 2 to 5% organic matter, 1.6 to 2 pts. on soils with 5.1 to 
10% organic mat1er. 
Special applications. 
• For the control 01 Fall Panicum in the states of Alabama, Florida, Georgia, North 
and South Carolina, and Virginia, apply and incorporate at a broadcast rate/acre 
of 2 pts. on both coarse and medium soils. 
• For the control of Pigweed and seedling Johnsongrass in Alabama, Arkansas, 
Florida, Georgia, Louisiana, Mississippi, SE Missouri, North and South Carolina, 
fennesseeand Southern Virginia, appty TRI·4 HF, preplant, at a broadcast rate/acre 
of 1 to 11/2 pts. on coarse soil, 11/2 to 2 pts. on medium soil, 2 pts. on fine soil. 
• For a more complete control of all listed grasses and weeds in counties along the 
Texas Gulf Coast (limited to Brazoria, Calhoun, Chambers, Fort Bend, Galveston, 
Harris, Jackson, Jefferson, Liberty, Matagorda, Orange, Victoria, Waller, and 
Wharton), apply up to 2 weeks before planting at a broadcast rate/acre of 1 1/2 
pts. on coarse soil, 2 pts. on medium soil. 
Precautions: Cot1on should be planted after early season adverse weather condi· 
tions have passed especially when using higher rate programs. 
Chemlgation Application to CoHon. 
TRI·4 HF must be applied through property calibrated and maintained CHEMIMTION 
systems to ensure proper application rates for optimum weed control in cotton. Follow 
the TRI-4 HF directions carefully and adhere to all label precautions and restrictions. 
Apply TRI-4 HF through sprinkler irrigation In 0.5 to 1 Inch of water. Plant immedi­
ately after Ihe last field operation. TRI-4 HF does not oontrol established weeds. 
Mechanical incorporation is not needed when TRI-4 HF is applied through a chemi­
gation system. Shallow cultivation operations can be done, however, untreated soil 
must not be exposed as this will result in reduced weed control. 
BROADCAST APPUCATION RATES/ACRE TRI-4 HF 
Soil Texture Sprtng Application' Eastern U.S.2 
Coarse 1 pI. 2 pts. 
Medium 1 1/4 - 1 112 pts. 2 pis. 
Fine 11/2-2pls. Do Not Use 
1 Coarse to medium soils with 2·5% O.M. apply 1 112 pints/acre 
Fine soils with 2-5% O.M. apply 2 pints/acre 
Western U.S.l 
1 1/2 pts. 
2 pts. 
Do Not Use 
The lowest rate in any rate range should be used if cumulative rainfall plus irrigatlon 
totals are less than 20 Inches. 
'Fall application rates for Alabama, Arkansas, northern Florida, Georgia, Louisiana, 
Mississippi, sootheastem Missouri (Boolheeij, North Carolina, New Mexico, Oklahoma, 
South Carolina, Tennessee, and Texas 
lFall application rates for western states induding Arizona and Nevada. 
In states not Ilsted above, apply in the fall at broadcast rates for regions with greater 
than 20 inches of average annual rainfall. 
TAI-4 HF/CAPAAOL TANK-MIX 
For cotton grown in California, Arizona, New Mexico and Texas, apply to the flat soil 
surface before disclng at the following: 
Broadcast rate/acre 
SOli Texture TRI-4 HF CAPAROLaow 
Coarse 1 pI. 21bs: 
Medium 11/4-11/2pls. 21/21ls. 
Fine 2 pis. 21/21ls. 
'00 not use on sand and loamy sand solis. 
For band appllcations, the user should use proportionally less. 
Carefully follow the procedures on the Caparol label for making a slurry and adding it 
to a partially filled tank of water. After the Gaparol is well mixed add the TRI·4 HF and 
agitate continuously. 
Precautions: Do not use this tank-mix in the cut areas of newly leveled fields, in areas 
of excess salt and where lloOOing over the beds is likely to happen. 
Crop rotation: 
Cabbage, okra, onion, and peas may be planted in the fall after a spring applica­
tion of the mixture. 
Winter barley, winter rye and winter wheat can be planted in the fall also if they 
are plowed down and not used for food or feed. 
Observe all directions, precautions and limitations on both products' labeling.

TRI-4 HF/COTORAN TANK-MIX 
Except in Arizona and California. 
Apply and incorporate at the following: 
Broadcast rate/acre 
Soil Texture TRI-4 HF COTORAN BOW 
Coarse 1 pI. 1 114 Ibs. 
Medium 1 112 pis. 21bs. 
Fine 2 pis. 21121bs. 
Use 15-40 gallons of clean water/acre. 
carefully follow the procedures 011 the Coloran label for making a slurry and adding it 
to a partially filled tank of water. After the Cotoran is well mixed add the TRI-4 HF and 
agitate continuously. 
Precautions: Do not plant crops other than cotton on the treated land within 6 months 
after application of this tank·mix. Do not feed foliage from treated cot­
ton plant or gin trash to livestock. Do not mix with liquid fertilizers. 
In West Texas do not use on sandy, loamy sand or fine sandy loam soils. Do not 
use on cotton planted in furrows. 
In Arkansas, louisiana, Mississippi, use 1 lb. otCotman in tank-mix with TRI-4 HF 
on sanely loam soils low in organic matter, 
• In New Mexico, do not plant treated land with crops other than cot1on until one year 
after the last application. Do not use on sandy loam soils with less than 1 percent 
organic matter. 
Observe all directions, precautions and limitations on both products' labeling. 
COTORAN Overlay: Apply TRI-4 HF as recommended and then Coloran as a pre· 
emergence surtace treatment at 11/4 to 2 1/2 Ibs.lacre. On light soil and sandy soils 
low in organic matter, use the lower rate. Refer to Cotoran label for cautions, pre­
cautions and instructions. 
TRI-4 HF PREPLANT FOLLOWED BY KARMEX OVERLAY 
For cotton grown east of the Mississippi River, Arkansas, SE Missouri, Louisiana, 
Eastern Texas, apply and Incorporate TRI-4 HFbefore planting at usual rates then make 
a pre-emergence application of Karmex BOW at 0.6 10 1.5 Ibs. per broadcast acre. 
Precautions: Do not use Karmex on sandy or low organic soils. Do not allow graz-
ing on cotton treated with Karmex. 
Refer to Karmex BOW label for additional Instructions, cautions, and precautions. 
CUCURBITS - CANTALOUPES, 
CUCUMBERS, WATERMELONS 
Use restricted to Western U.S. including Texas. 
Apply in post-plant emerged at the following: 
Broadcast rate/acre 
Soil Texture Texas only 
Coarse 1 pI. 
Medium 1 1/4 + 1 1/2 pts. 
Fine t 1/2 pts. 
2 to 5% organic matter 1112-2pts. 
5.1 to 10% organic matter 2 pts. 
WestemU.S. 
1 pI. 
11/4 - 11/2 pIs. 
1 1/2 pts. 
1112-2pts. 
2 pts. 
Apply as directed spray to the soil between the rows and beneath the plants which 
are in the 310 4 true-leaf stage. eare should be taken that incorporation machinery 
does not damage tile plants. 
FIELD CORN 
Postemergence Incorporated Application 
TRI-4 HF may be surface applied following a cultivation or use of a herbicide that has 
controlled weeds. TRI-4 HF WILL NOT CONTROL WEEDS THAT HAVE EMERGED. 
TRI-4 HF can be applied after the corn has reached a size of 2 true leaves or greater. 
TRI-4 HF should be applied over ttle corn, or post-directed using drop nozzles if the 
foliage is so dense that the spray solution cannot contact the soil. 
Mechanical incorporation of TRI-4 HF must be completed within 24 hours of applica­
tion to prevent volatilization of product which causes reduced weed control. The prod­
uct must also be incorporated in the weed seed germination zone for optimum 
effectiveness. Mechanical incorporation can be completed with a single pass sweep­
type or rolling cuHivalor. The sweep-type cuHivator must have 3-5 sweeps between 
the rows for maximum mixing of soil. 00 NOT expose untreated soil. Avoid crop injury 
from improper cultivator settings. 
9 
Broadcast Rate Per Acre of TRI~4 HFI 
Soil Texture TRI-4 HF 
COarse 314-1 pi: 
Medium 1 -1112pts 
Fine 1112 - 2 pis. 
'In Alabama, Florida, Georgia, North Carolina. South Carolina, and Virginia in coarse soils 
apply 1 -11/2 pints/acre for fall panicum and Texas panicum control. 
1 Com must be planted at least 1.5 inches deep to sate~ utilize this treatment. 
In regions receiving less than 20 Inches of rainfall and irrigation, always app~ at the 
lower end of the rate range for any given soil texture. 
DO NOT APPlY TO SWEET CORN OR CORN GROWN FOR SEEO. 
TRl-4 HF MUST NOT BE SOIL APPliED AS A PRE-PLANT OR PREEMERGENCE 
TREATMENT IN AElD CORN, OR CROP INJURY Will OCCUR. 
Planting corn into a furrow requires TRI·4 HF to be applied after a cultivation has moved 
soil Into the row. 
Referto the TRI-4 HF label for specific use directions regarding soil preparation, weeds 
controlled, soil texture, and special precautions. 
This label must be in the possession of the user at the time of herbicide application. 
Review and follow the appropriate sections of this label prior to application and 
rotational crop planting. 
Chemigation Application to Field Com 
Application timing 
When field com Is at 2 true leaves or taller, TRl-4 HF can be applied with 0.5 to 1.0 
acre inch of overhead sprinkler irrigation. TRI-4 HF will not control emerged weeds. 
Broadcast Application Rate/Acre 
Soli Texture TRI-4 HF 
Coarse 1112 - 2 p1s. 
Medium 1112 - 2 pts. 
Fine 00 NOT apply 
1. TRI-4 HF should not be applied to sweet corn or corn grown for seed. 
2. DO NOT apply where corn is planted in a furrow. Apply only after a cunivation to 
move soil into a row to prevent crop injury. 
3. DO NOT apply TRI-4 HF as a preplant or preemergence treatment because crop 
Injury will occur. 
GREENS - TURNIP GREENS (for processing), 
KALE, MUSTARD GREENS 
Apply and incorporate before planting at a broadcast rate/acre of 1 pt. on coarse and 
medium soils. 11/2 p1s. on fine soil. 
CHEMIGATION APPLICATION TO GRAIN SORGHUM 
Apply TRI-4 HF ttlrough chemigation equipment when grain sorghum has reached a 
height of B inches or taller. Cultivate sorghum to destroy existing weeds and add 1 
inch of soil around the base of sorghum plants. 
Apply TRI-4 HF in 0.5 to 1 acre inch of sprinkler irrigation and immediately after cul­
tivatIon when the grain sorghum is at least 8 Inches tall. TRI-4 HF has no postemer· 
gent activity on emerged weeds. 
BIlOADCAST RATES/ACRE 
Soli Texture TRI-4 HF 
COarse 314-1 pl 
MedIum 1-11I2pts. 
Fine DO NOT apply 
Applications to grain sorghum with TRI-4 HF should not be made preplant Of" pre­
emergence because of potential crop injury. Misapplication will resun In crop Injury. 
HOPS 
Use restricted to Western U.S. only. 
Apply and incorporate while the crop is dormant at a broadcast rate/acre of 1 pI. on 
coarse soil. 11/4 -11/2 piS. on medium soil. 11/2 pts. on fine soil and soils with 2 
to 10% organic matter.

_._----- -------------------------------------------------------------
OKRA 
Apply and incorporate before planting at the following: 
Broadcast rateJacre 
Soil Texture Texas only Western U.S. 
Coarse 1 pI. 1 pI. 
Medium 1 1/2 pis. 11/4 -11/2 pIs. 
Fine 2 pis. 1 1/2 pts. 
2 to 5% organic matter 11/2-2pts. 11/2·2pls. 
5.1 to 10% organic matter 2 pis. 2 pis. 
PEANUTS 
Spanish peanuts grOYIn In Texas and Oklahoma only. 
Apply and incorporate before planting, at planting or immediately after planting at a 
broadcast rate/acre of 1 pt. on coarse soil. Gare should be taken not to disturb the 
seed when incorporating after planting, 
TRI-4 HFNERNAM TANK-MIX 
Apply up to 10 days prior to planting, incorpocate immediately atter application at a 
broadcast rate/acre of 1 pt. of TRJ-4 HF and 2 1/3 pts. of Vernam 7E. 
Observe all directions, precautions and limitations on both products' labeling. 
PEAS 
ENGLISH PEA5-0RY PEAS. 
Apply and incorporate before planting at a broadcast rate/acre of 1 pt. on coarse and 
medium soils and 1 1/2 pts. on fine soil. 
Fall application. 
• For dry and English peas grown In Idaho, Oregon and Washington only, apply and 
incorporate any time between October 15 and December 31 at a broadcast rate/acre 
of 1 pt. on coarse soil, 11/4 - 11/2 pts on medium soil and 11/2 pts. on fine soil. 
Do not apply In the fall to soils which are wet or are subject to prolonged periods 
of flooding. 
TRI-4 HF/AVADEX BW TANK-MIX 
For peas grown in Idaho, Oregon and Washington only, apply and incorporate up to 3 
weeks before planting at the following: 
Broadcast rate/acre 
Soil Texture TRI-4 HF AVADEXBW 
Coarse 3/4 pI. 1 1/4 qt.s. 
Medium 3/4 pI. 11/4 qt.s 
Fine 1 pI. 11/4 qt.s. 
Precautions: Do not apply to lentils. Do not use foliage from peas treated for feed 
or forage. Do not graze livestock on treated crops. 
Observe all directions, precautions and limitations on both products' labeling. 
SOUTHERN PEAS 
Apply and incorporate before planting at the following: 
Broadcast rate/acre 
Soil Texture Eastern U.S. Western U.S. 
Coarse 1 pI. 1 pI. 
Medium t 1/2 pts. 1 1/4 - 1 1/2 pIs. 
Fine 2 pts. 1 1/2 pIs. 
2 to 5% organic matter 11/2-2pls. 11/2 - 2 pis. 
5.1 to 10% organic matter 2 pis. 2 pis. 
10 
PEPPERS 
Apply and incorporate before transplanting at the following: 
Broadcast rate/acre 
Soli Texture Eastern U.S. Western U.S. 
Coarse 1 pI. 1 pI. 
Medium 1112 pis. 1 114 - 1 1/2 pis. 
Fine 2 pis. 11/2 pts. 
2 to 5% organic matter 11/2pts. 11/2-2pts. 
5.1 to 10% organic matter 2 pis. 2 pis. 
Do not apply after transplanting, 
POTATOES 
Not recommended for use In the state of Maine. 
Apply after planting, before emergence or immediately following dragoff or after the 
potato plants have fully emerged at the following: 
Broadcast rate/acre 
Soil Texture Eastern U.S. Western U.S. 
Coarse 1 pt. 1 pI. 
Medium 11/2 pis. 1 1/4 - 1 1/2 pts. 
Fine 2 pis. 1 1/2 pts. 
2 to 5% organic matter 1 1/2 pts. 11/2 - 2 pts. 
5.1 to 10% organic matter 2 pis. 2 pis. 
Care should be taken so that incorporation machinery does not damage potato seed 
pieces or elongating sprouts. Set incorporation equipment so that bed and furrow will 
be uniformly covered by the product. 
If the layer of TRI-4 HF treated soil Is not uniform, potato emergence may be retard­
ed and stem brittleness can occur. When applying and IncorjXl(ating after potato plants 
have fully emerged, do not completely cover the foliage with treated soil. 
Split application in Idaho, Oregon, Washington. 
On all soils apply and incorporate 3/4 pt. before planting and 3/4 pI. after planting 
when potato plants have fully emerged. 
Precautions: Do not apply to roil containing 2% or more organic matter. 
TRI-4 HF/EPTAM TANK-MIX 
For potatoes grown In Kansas, Minnesota, Nebraska, North Dakota, Oklahoma, 
South Dakota, Texas, apply after planting, but prior to crop emergence. In areas 
where potatoes are normally dragged off the mixture should be applie<l and incor­
porated up to or immediately following drag off. 
Broadcast rate/acre 
TRI4 HF 
Soil Texture Eastern U.S. Western U. s. EPTAM 7E 
Coarse 1 pI. 1 pt. 1 3/4 - 7 pis: 
Medium 1 -11I2pls. 1 - 1 1/2 pts. 1 3/4 - 7 pis: 
Fine 1·2p1s. 1 - 1 112 pIs. 1 3/4 - 7 pis: 
2 to 5% organic matter 11/2 pts. 1112 pis. 1 3/4 . 7 pis: 
5.11010% 
organic matter 2 pis. 2 pIs. 1 3/4 - 7 pts: 
'Use higher rates for nutse<lge control. 
Precautions: Do not graze or feed forage to livestock from fields treated with this 
mixture. 
• For potatoes grown in WaShington, Idaho, Oregoo, apply and incorporate before 
planting at a broadcast rate of 3/4 pts. of TRI-4 HF/acre and 3 112 pts. of 
EPTAM 7EJacre on all soils. 
Precautions: Do not use this tank-mixture both before and after planting in the same 
season. Do not use foliage from treated crops for feed or forage. 
Observe all directions, precautions and limitations on both products' labeling. 
11/17

RAPESEED (CANOLA) 
TRI-4 HF may be surface applied and incorporated in the falt in the stales of Minnesota, 
North Dakota, and South Dakota from September 1 to December 31. In aU other slales 
fall application can occur between October 15 and December 31. Application and incor­
poration of TRI-4 HF can be made in the fall or spring provided the soil is in condition 
for uniform incorporation. 
Broadcast Rate Per Acre of TRI-4 HF 
Soil Texture TRI-4 HF 
Coarse I pI. 
Medium 11/2 p~. 
Fine 2 pis. 
Precaution: DO NOT applyTRI-4 HF to rapeseed (canola) grown in the state of Alaska. 
Good soil preparation Is essential for best results: destroy existing weeds before 
application and incorporate TRI-4 HF within 24 hours after application. Refer to the 
TRI-4 HF label fOf incorporation instructions. 
00 NOT FALL APPlY TRI-4 HF TO SOILS THAT ARE SUBJECT TO PROLONGED 
WET PERIODS OR flOODING. 00 NOT EXPOSE UNTREATED SOIL IF BEDDING 
OPERAnONS ARE IMPlEMENTED. 
SAFFLOWER 
Apply and incOfPorate in the spring before planting or in the fall between October 15 
and December 31 at the following: 
Broadcast rate/acre 
Soil Texture Eastern U.S. Western U.S. 
Coa'se 1 pI. 1 pt. 
Medium 1 1/2 pis. 1 1/4 - 1 1/2 pts. 
Fine 2 pis. 1 1/2 pts. 
2 to 5% organic matter 1 1/2 pis. 11/2 pis. 
5.1 to 10% organic matter 2 -21/2 pis. 2 -21/2pls. 
Fall application. 
For safflower grown In AriZona, California, Idaho, Montana, Nevada, Oregon, Utah, 
Washington, 1Ny0ming: apply and Incorporate anytime between October 15 and 
December 31 at a broadcast rate/acre of 1 1/2 pts. on coarse soil, 2 pts. on medium 
sOil,2 1/2 pts. on fine soil. 
Precautions: Do not apply in the faU to soils which are wei or are subject to pro­
longed periodS of flooding. 
SOYBEAN 
Apply and incorporate before planting at the following: 
Broadcast rate/acre 
SOil Texture Eastern U.S. WestemU.S. 
Coarse I pI. 1 pI. 
Medium 11/2 pis 11/4 -11/2 pis. 
Fine 2 pis. I 1/2 pis. 
2 to 5% organic matter 1 1/2 pts. 11/2-2pts. 
5.1 to 10% organic matter 2 -21/2pts: 2 pts. 
'except charcoal solis in Arkansas, Louisiana, Mississippi (see below). 
Charcoal soils in Arkansas, louisiana, Mississippi. 
Newly cleared land often contains high organic matter (4 to 1 0%) and charcoal which 
results from burning debris. This fends to bind TRI-4 HF reducing its weed control 
activity. Higher product rates are therefore necessary, but increased rates can cause 
crop injury if charcoal or organic matter is not present. Apply and incorporate at a 
broadcast rate/acre 012 - 2 1/2 pis. on coarse soil, 2 1/2 pts. on medium soil, 3 pts. 
on fine soil. 
Fall application. 
Apply anytime between October 15 and Decernber 31 . 
• In Alabama, Arkansas, Northern Florida, Georgia, louisiana, MissiSSippi, SE 
MissourI boo1heel, North Carolina, Oklahoma, South Carolina, Tennessee, Texas: 
apply and incorporate at a broadcast rate/acre of 2 pts. on coarse and medium 
soils and 2 1/2 pts. on fine soil. 
In Eastern United States other than those listed above: apply and incorporate at a 
broadcast rate/acre of 1 pt. on coarse soil, 1 1/2 pts. on medium soil and 2 pIs. 
on fine soil, 11/2 pts. on coarse soil with 2 to 5% organiC maUer, 2 to 2 1/2 pts. 
on soils with 5.1 to 10% organic maUer. 
11 
Precautions: Do not apply to soils which are wet or subject to prolooged periods of 
flooding or where rice was grown the previous year. 
SpecIal applications. 
• For the control of Fall Panicum In Alabama, Florida, Georgia, North and South 
Carolina, Virginia: apply ata broadcast rate/acre of 2 pts. on both coarse and medi­
um soils. 
• For more complete control of Pigweed and seedling Johnsongrass in Alabama, 
Arkansas, Florida, Georgia, louisiana, Mississippi, SE Missouri, North and 
South Carolina, Tennessee, S. Virginia: apply at a broadcast rate/acre of 1-1 1/2 
pts. on coarse soli, 1 1/2 - 2 pIs. on mediurn soil, 2 pis. on fine soil (3 pts. in the 
State of louisiana). 
For more complete weed control in the Texas Gulf Coast Qimited to the follOWing 
counties: Brazoria, Calhoun, Chambers, Fort Bend, Galveston, Harris, Jackson, 
Jefferson, Uberty, Matagorda, Orange, Victoria, Waller, and Wharton): apply up to 
2 weeks before planting at a broadcast rate/acre of 11/2 pIs. on coarse soil, 2 
pts. on medium soil, 3 pts. on fine soil. 
For suppression or partial control of Red Rice in Arkansas, louiSiana, Mississippi, 
Texas: apply as directed at double the normal rate the first year and at the normal 
rate the second year. Apply and incorporate anytime in the spring before planting 
at the following: 
Broadcast rate/acre 
SOU Texture 1st Year 2nd Year 
Coa~e 2 pts. 1 pI. 
Medium 3 pis. 11/2 pIS. 
Fine 4 pis. 2 pis. 
2 to 5% organic matter 3 pis. 11/2p~. 
5.1 to 10% organic matter 4 pIS. 2 -21/2pis. 
If a combination of high organic matter and charcoal are present apply in the second 
year the rates labeled for charcoal soils In louisiana, Arkansas and Mississippi 
(1 1/2 • 2 1/2 pts. on coarse soil, 2 1/2 pts. on medium soil, 3 pts. on fine soin. 
Crop rotation: Plant only those crops for which TRI-4 HF has been registered as a 
preplant treatment. 
Precautions: Do not plant rice the second year. 
Forthe control of Rhizome Johnsongrass In Eastern United States and Texas. Apply 
in a row for two consecutive years according to the program that best frts your cul­
tural practices: 
• as spring afl)Hcatlon, anytime in spring before planting, 
• as fall applicatlon. between October 15 and December 31, 
• as split application, directed under both spring and fall applications. 
Broadcast rate/acre 
Soil Texture Spring or Fall Split SprIng and Fall 
Coarse 2 pts. 1 pi. 
Mediurn 3 pts. 11/2 pis. 
Fine 4 pis. 2 pis. 
2 to 5% organic matter 3 pts. 1 1/2 pis. 
5.1 to 10% organic matter 4 pis. 2 pis. 
Proper preparabon of the soil before application and deep Incorporation are very Impor­
tant for best results. Some Johnsongrass plants may escape. Timely cultivations dur­
ing the cr~ season are necessary. 
• For the control of Wild Cane (shattercane). Wild cane can germinate from greater 
soil depth than most other weed seeds. Several "flushes" or germinating times are 
common in one season. Commercially acceptable cootrol of Wild Cane can be 
obtained with the increased rates of TRI-4 HF. 
Land preparation: Work your land to destroy existing grasses and weeds. Thoroughly 
mix crop residues into the soil to a depth of 4 to 6 inches. 
Application. Apply before planting at a broadcast rate/acre of 1 pI. on coarse soil, 
2 pts. on medium soii, 2 1/2 pts. on fine soil. 
Incorporation. Deep incorporation is essential to good wild cane control. Incor~rate 
thoroughly with a disc only set to cut 4 to 6 inches deep and operate in 2 different 
directions at 4 to 6 mph. 
Cultivation. Cultlvations during the crop season will also contribute to control. 
Precautions: Plant soybeans after early season adverse weather conditions have 
passed. Do not plant soybeans deeper than 2 inches. Crop injury in the 
form of delayed growt11 may occur under adverse COOl, wet weather 
conditions early In the season when TRI-4 HF is used according to U1ese 
recommendations.

TRI-4 HF/SENCOR OR LEXONE TANK-MIX 
For the control of grasses and weeds controlled by TRJ-4 HF alone plus additional 
weeds listed for the mixture, apply from two weeks before planting up to planting 
at the following: 
Broadcast rate/acre 
SENCOR 50WP/4 
or 
SOil Texture 1Il1-4 HF LEXONE 50WP/4L 
Coarse 1 pt. 1121b.lpt 
Medium 11/2 pts. 3I4lb.lpt 
Fine 2 pis. llb.lpt 
Do not use on coarse soils with less than 1 % organic matter. 
OR 
SENCOR (dry flowablel 
or 
Soil Texture 1IlI-4 HF LEXONE (dry flow,blol 
Coarse 1 pt. 1/3 lb. 
Medium 1 1/2 pis. 112 lb. 
Fine 2 pis. 213 lb. 
Do not use on coarse soils with less than 1 % organic matter. 
Precautions: Do not plam any crop other than soybeans within 4 months after treat­
ment. Over application, uneven application or "Improper soil !ncorpora­
tion can result in erratic weed control or crop injury. Seedling disease, 
cold weather, deep planting, excessive moisture, soU pH over 7.5, high 
salt concentration or drought may weaken crop seedlings and increase 
possibility of damage from the application of this tank-mix. 
For the control of Rhizome Johnsongrass. 
Apply up to two weeks before planting for two consecutive years at the following: 
Broadcast rate/acre 
SENCOR 50WP/4 
or 
Soli Texture 1Il1-4 HF LEXONE 50WP/4L 
Coarse 2 pis. 1/21bJpl 
Medium 3 pis. 3/41b.lpl 
Fine 4 pIS. 11b.lpl 
Do not use on coarse soils with less than 1 % organic matter. 
OR 
SENCOR (dry flowable) 
or 
SOil Texture 1Il1-4 HF LEXONE (dry flowable) 
COarse 2 pIS. 1/3 lb. 
Medium 3 pIS. 112 lb. 
Fine 4 pis. 213 lb. 
00 not use on coarse soils with less than 1 % organic matter. 
Precautions: Do not use the foliage from soybeans for feed or forage. 
Observe all directions, precautions. limitations and mixing procedures on both prod­
ucts' labeling. 
TRI-4 HF PREPLANT + SENCOR OR LEXONE OVERLAY 
Apply TRI-4 HF as a preplant IncorPorated herbicide. As a separate operation make a 
single application of Sencor or Lexooe as either band or broadcast spray during plant­
ing or as a separate operation after planting but before soybeans emerge. 
(Rates are given according to the use of Sencor or lexone respectively.) 
Broadcast rate/acre 
Soil Texture 1Il1-4 HF 
Coarse 1 pI 
Medium 1112 pis. 
Fine 2 pis. 
SENCOR 50WP/4 
or 
LEXONE 50WP/4L 
Post-plant/Preemergence 
3/4 - 1 or 3/4 Ibs.lpts. 
314· 1 1/2 or 314 -1IbsJpts. 
1 - 1 3/4 or 1 Ibs.lpts. 
12 
Do not apply Sen cor to coarse so\ls (sandy loam and loamy sand) containing less than 
2% organic matter. Do not apply lexone to sand or soils with less than 1/2% organ· 
ic matter. 
OR 
SEN COR (dry flowable) 
or 
LEXONE (dry flowable) 
Soil Texture TRt-4 HF Post-Plant lPreemergence 
Coarse 1 pI 1/2 - 213 or 1/21b.lpl 
Medium 1112 pls. 1/2 - 1 or 1/2 - 213lb.lpls. 
Fine 2 pts. 213 - 1 1/6 or 213 IbJpt. 
Do not apply Sencor to coarse soils (sandy loam and loamy sand) containing less than 
2% organic matter. 
Do not apply Lexone to sand or soils less than 1/2% organic matter. 
Precautions: Do not use Lexone or Sencor on Tracy, Semmes. Altona, Vansoy or 
Coker 102 soybeans because these varieties are sensi1ive to tIlese 
products. Do not use treated vines for feed or forage. Seed must be 
planted at \east 11/2 inches below the soil surface but not more tIlan 
2 inches before a Sencor or lexone application. 
Do not apply Sencor or Lexone more than once per season. 
Do not replant areas treated with Sencor or Lexone to any crops oth­
er than soybean within 4 months after treatment. 
Observe all directions, precautions and limitations on all products' labeling. 
TRI-4 HF/SCEPTER TANK-MIX OR OVERLAY 
Tank-mix: Apply as a preplant incorporated treatment. Incorporate into the soil with­
in 24 hours after application and plant soybeans within 45 days after treatment. Use 
equipment that provides un norm 2 inch incorporation. 
Broadcast rate/acre 
Soil Texture TRI-4 HF SCEPTER" SCEPTER 700G 
Coorse 1 pI. 213 pI. 2.8 oz. 
Medium 1 1/2 pis. 213 pt 2.8 oz. 
Fine 2 pts. 213 pt 2.8 oz. 
Preplant Overlay: Apply and incorporate TRI-4 HF as recommended and then follow 
a preplant surface treatment with SCEPTER or SCEPTER 70 DG at 213 ptJaCfe or 2.8 
wacre respectively up to 45 days prior to planting of soybeans. 
Postemergence Overlay: Apply TRI-4 HF as a preplant incorporated herbicide fol­
lowed by postemergence overlay treatment with SCEPTER or SCEPTER 70 06 at 
213 pUacre or 2.8 oz/acre respectively. For best results, overlay should be applied 
when the weeds are actively growing but no more than 2 inches in height. 
Follow recommended soil preparation and application procedure for TRI-4 HF, 
SCEPTER or SCEPTER 70 DG. Irrigation or rainfall suffICient to moisten soli to a depth 
of 2 inches is necessary to activate SCEPTER and SCEPTER 70 DG. 
Precautions: SCEPTER and SCEPTER 70 DG plantback restrictions require-Do not 
plant rice or small grains within 4 months of application. Do not plant 
com, edible beans, grain sorghum, peanuts or tobacco within 11 
months of application. Do not plant crops other than those listed above 
within 18 months of application. Consult SCEPTER or SCl:PTER 70 DG 
label for more specific pjantback restrictions. Observe all precautions 
and limitations on the SCEPTER or SCEPTER 70 DG label. 
TRI-4 HFNERNAM TANK-MIX 
Apply up to 10 days prior to planting at the following: 
Broadcast rate/acre 
Soil Texture TRI-4 HF VERNAM 7E 
Coarse 1 pt. 1 314·21/3 pls. 
Medium 1 1/2 pts. 21/3 - 3 pts" 
Fine 2 pis. 3 -31/2 pis. 
·Use higher rates for nuts edge, wild cane and ~eJvetleaf cootrol. 
Observe all directions, precautions and limitations on both products' labeling. 
FALL APPLICATIONS OF TRI-4 HF FOLLOWED 
BY EARLY POST APPLICATIONS OF PURSUIT" 
OR PURSUIT" DG HERBICIDES FOR SOYBEANS 
In the states of South Dakota and Minnesota, apply and incorporate TRI·4 HF anytime 
between September 1 and December 31.ln all other states, applications of TRI-4 HF 
can be made between October 15 and December 31. Follow applications ofTRI-4 HF 
in the fall with postemergence applications of PURSUIT or PURSUIT DG the following

spring. Consult the PURSUIT or PURSUIT DG label for appllcatJon instructions 
and precautions. 
Broadcast Rate Per Acre of TRI-4 HF 
TRI-4HF 
Soil Texture Northern U.5.· Southern U.S." 
Coarse 1 pI. 2 pts. 
Medium 11/2 pis. 2 pts. 
Fine 2 pis. 21/2 pts. 
'Coarse and medium soils with 2-5% Ofganlc matter· 1 112 pints. 
'Fine soils with 2-5 % organic matter - 2 pints. 
'Soils with 5-10% organic matter 2 - 2 1/2 pints. 
"Fall application rates foc States Including Alabama, Arkansas. northern Florida, Georgia, 
Louisiana. Mississippi. SE Missouri (BOOll-lEEL). North Carolina, Oklahoma, South 
Carolina, Tennessee, and Texas. 
Good soil preparation is essential for best results. TRI-4 HF must be incorporated with­
in 24 hours after application. DO NOT apply TRI-4 HF to fields that are poorly drained 
or are subject to periods of flooding. Roundup5, 2,4-0, Butyrac6 200 (2,4-09), 
paraquat, or tillage should be usedto klll existing vegetation, If present before planting. 
SUGAR BEETS 
Apply as a broadcast, overtop spray to plants immediatel)' after blocking or thinning 
when plants are between 2 and 5 Inches tall. Exposed beet roots should be covered 
with soil prior to application to reduce possiblmies of girdling. Care should be taken 
that incorporation machinery does not damage the sugar beets taproot. 
Broadcast rate/acre 
5011 Texture Eastern U.S. Western U.S. 
Coarse 1 pI. 1 pI. 
Medium 1 t/2 pis. 11/4 - 1 1/2 pis. 
Fine 11/2 pts. 1 1/2 pts. 
Special application. 
Incorporation with a tine-tooth harrow in Califomia, Colorado, Idaho. Kansas, 
Montana, Nebraska, Oregon, Texas, Utah, Washington, Wyoming. 
A properly operated tine-tooth harrow can provide adequate incorporation of the 
herbicide for effective weed control in sugar beets. 
Operate the tine-tooth harrow two times over the field in opposite directions at a 
speed of 3 to 6 mph and set the harrow to cut 1 to 2 inches deep. Care should be 
taken to insure that the tine-tooth harrow does not damage the sugar beet taproot. 
SUGARCANE 
Plant Gane (In Eastern United States only) 
Apply and incorporate twice a year at a broadcast rate/acre of 2 to 4 pts. for all soil 
tenures. Make the application in the fall on firmly packed beds immediately after the 
seed pieces are planted. 
Make the application In the spring before or shortly after the cane emerges. Loosen 
rain-packed beds 2 to 3 inches deep before the spring application. Care should be 
taken so that Incorporation machinery does not damage the seed pieces or emerging 
shoots. 
Plant and Ratoon Gane (grown In Louisiana and Texas only) 
Apply and incorporate at a broadcast rate/acre of 2 to 4 pts. for all soil textures. Make 
applicat'lon in the spring from before or shatly after the cane emerges up to layby. 
Make application after the beds have been shaved or false shaved. Loosen rain-packed 
bed 2 to 3 inches deep before application. Care should be taken so that incorpora­
tion machinery does not damage seed pieces or emerging roots. 
Post-plant in Hawaii 
(only for control of most annual grasses Including gulneagrass) 
Apply to the surface after plantillg (for plant cane) or after harvesting ~or ratoon cane) 
before weeds and cane emerge at a broadcast rate/acre of 6 to 8 pts. for all soil tex­
tures.ln plant cane the beds should be formed or rolled before application. In ratoan 
cane. the crop residue should be removed before applicatlon. Apply just before antic­
ipated rainfall or sprinkle irrigate immediately after application. 
Itchgrass control (in Louisiana only) 
Apply and incorporate on either plant or raloan cane at a broadcast rale/acre of 4 pIs. 
for all soil textures. Apply in the spring from before or shortly atter the cane emerges 
up to layby. Follow directions above for sugarcane layby application in louisiana and 
Texas. 
t3 
SUNFLOWER 
Apply and incorporate in Ihe spring or in the fall between October 15 and December 31 
at the following: 
Broadcast rate/acre 
Soil Texture Eastern U.S. Western U.S. 
Coarse 1 pI. 1 pI. 
Medium 11/2pts. 1 1/4· t 1/2 pIs. 
Fine 2 pis. 1 1/2 pis. 
2 to 5% organic matter 1 t/2-2pts. 11/2·2 pts. 
5.1 to 10% organic matter 2 pis. 2 pis. 
TOMATOES 
For transplant, apply and incorporate before transplanting at the following: 
Broadcast rate/acre 
Soil Texture Eastern U.S. Western U.S. 
Coarse 1 pt. 1 pI. 
Medium 11/2 pts. 1 1/4 - t 1/2 pis. 
Fine 2 pis. 1 1/2 pis. 
2 to 5% organic matter 1 1/2 pts. 11/2·2pts. 
5.1 to 10% organic matter 2 pis. 2 pis. 
For direct-seeded tomatoes, apply and incorporate to soil between the rows arrd 
beneath the plants. 
TREES AND VINEYARDS 
EASTERN U.S. 
For new planting of vineyards, c~rus and pecan trees, apply and incorporate before 
planting at the following: 
Broadcast rate/acre 
5011 Texture 
Coarse 1 pt. 
Medium 11/2 pis 
Fine 2 pts. 
2 to 5% organic matter 11/2 pts. 
5.1 to 10% organic matter 2 pts. 
• For non-bearing established plantings of citrus and pecan trees and bearing plan!­
ings of grapefrun, lemon, orange, pecan, tangelo, tangerine trees, appl)' at a broad­
cast rate/acre of 2 to 4 pts. for all soil textures. 
Apply as a directed spray to soil around the trees and use incorporation methods 
not injurious to the trees. If crops are planted between the trees or vines, label 
directions for those specific crops apply to the area which is interplanted. 
For continued weed cOfltrot in citrus area, apply twice a year at an interval of approx­
imately 4 to 6 months. 
WESTERN U.S. 
For new plantings of almond, apricot, citrus, nectarine, peaCh, pecan, walnut trees, 
apply and 'Incorporate before planting at the following: 
Broadcast rate/acre 
Soli Texture 
Coarse 1 pt. 
Medium 11/4 -11/2 pis. 
Fine 1 112 pts. 
2 to 5% organic matter 1 -11/2pts. 
5.1 to 10% organic matter 2 pis.

• For new plantings of vineyards, apply before planting at the following: 
Broadcast rate/acre 
Soil Texture 
Coarse 1 -11/2 pts. 
Medium 11/2 - 3 ~s. 
Fine 3·4pts. 
210 10% organic matter 3-4pts. 
00 not use more than 2 pts.lacre on heat-treated vines. 
For post-plant applications on bearing and non-bearing established plantings of 
vineyards, almonds, apricot, grapefruit, lemon, nectarine, orange, peach, pecan, 
jium, p"une, tangelo, tangerine and walnut trees, apply at a broadcast rate/acre 
of 2 to 4 pts. for all soil textures. 
Apply as a directed spray to the soil around the trees or vines and use incorpora­
tion methods not injurious to the trees or vines. 
00 not apply to vineyards within 60 days of halVest. 
For continued weed control in citrus trees, apply twice a year at an intelVal of about 
410 6 months. 
• In both the Eastern and Western U.S., it crops are planted between the trees or 
vines, label directions forthose specifk: crops apply to the area which is interplanted. 
Special application. 
For Rhizome Johnsongrass control (Western U.S. only). 
Commercially acceptable control of Rhizome Johnsongrass can be obtained wnh 
post-plant applications in bearing and non-bearing established plantings of vine­
yards, almond, apricot, grapefrun, lemon, nectarine, orange, peaCh, pecan, tan­
gelo, tangerines, and walnut trees. 
Work the soil thoroughly to bring the rhizomes nearer the surface. Apply for two 
years In a row at a broadcast rate/acre of 4 pts. on all soil textures each year. 
Incorporate thoroughly with a disc set to cut 4 to 6 inches deep and operate 2 times 
at4 to 6 mph. 
Some Johnsongrass plants will escape. Timely cultivations are necessary. 
Precautions: Do not use the 4 pts. rate on new plantings; do not apply to vineyards 
within 6 months of haIVest; do not interplant orchards or vineyards wnh 
other crops; if the TRI-4 HF treated vineyards and orchards are divert­
ed to other crop uses, plant only those crops for which TRI-4 HF has 
been registered as a preplant treatment. 
• For Field Bindweed control in vineyards, almond, apricot, grapefruit, lemon, nec­
tarine, orange, peach, pecan, tangelo, tangerine, and walnut trees in California only. 
Apply in the spring with specially designed spray blade which applies at a soil depth 
of 4 to 6 inches at a broadcast rate/acre of 4 pts. on all soil telctures in 40-80 gal­
lons of water/acre. 
Destroy aU weeds and grasses with soil tillage before applying. 
Precautions: Some soils develop cracks as they dry after rainfall or irrigation and 
Field Bindweed may emerge. Prevent or eliminate cracks by shallow 
discing or other tillage. 
WHEAT 
WINTER WHEAT grown in Idaho, Montana, Oreoon and Washington. 
Apply any time during a period from 3 weeks up to immediately prior to planting at a 
broadcast rate/acre of 1 1/2 pis. on coarse and medium soils and 2 pts. on fine soils. 
Incorporate, with a flexible tine-tooth harrow set to cut 1 to 2 inches deep and oper­
ate at 3 to 6 mph, one time within 24 hours after application and a second time, in a 
different direction, prior to planting. 
WINTER WHEAT fallow soil applicatioo in Washington and Oregon. Apply any time 
from May to September prior to the fall planting at a broadcast rate/acre of 1 1/2 pis. 
on coarse and medium soils and 2'pts. on fine soil. 
Incorporate, with a flexible tine-tooth harrow set to cut 1 to 2 inches deep and oper­
ate at 3 to 6 mph, one time within 24 hours after application and a second time, in a 
different direction, prior to planting. 
SPRING WHEAT, DURUM 
twly as a poSlplant incorporated trealment, after seeding but before the crop emerges, 
to control foxtail at a broadcast rate/acre of 1 pt. on coarse and medIUm soils and 
11/2 pts. on fine soil. Incorporate using a flex-Une or diamond harrow operating two 
times in different directions at 5 mph, 1 to 1 1/2 inches deep. 
TRI-4 HF may be fall applied for fox1aiVpigeongrass control in spring wheat, durum 
and Qirley planted the following spring. TRJ-4 HF may be applied to ground that has 
a manageable trash level, has been fallowed Of pre-tilled. Apply any time between 
October 15 and December 31 at a broadcast rate/acre of 1 pI. on coarse or medium 
soils and 1 1/2 pts. on fine soil. For the Incorporation use: chisel plow (for the first 
pass only) operating at 4 to 6 mph, set to cut at 4-5 inches deep', tandem disc, oper­
ating at 4 to 6 mph, 3-4 inches deep: field CUltivator, operating at 5 mph, 3-4 inch­
es deep. 
14 
Precaution: While use of this practice may result in a stand reduction, slight stand 
reductions do not normally affect yield. 
SPECIAL PRECAUTIONS 
Applied according to directions and under normal growing condttions TRI-4 HF will 
not harm the treated crop. Over application may result in crop injury or a soil residue. 
Uneven application or improper soil incorporation can result in erratic weed control or 
crop injury. 
Special precautions must be taken: 
In the Western United States (Arizona, Colorado, Cal'ltornia, Idaho, Montana, Nevada, 
New Mexico, Oregon, Utah, Washington and Wyoming): to avoid crop injury do not 
plant sugarbeets, red beets or spinach for 12 months after TRI-4 HF application 
or for 14 months after a fall application of the product. 
00 not plant sorghum, COfn, oats for 14 months after spring application or for 16 
months after fall application. If land has not been Irrigated, do not plant any of these 
crops for 18 months after spring application or for 20 months after fall application. 
In the Western United States (Kansas, Nebraska, North Dakota, Oklahoma, South 
Dakota and Texas in those areas where at least 25 inches of Irrigation or rainfall 
was used to produce the crop): do not plant sorghum or oats for 12 months after 
the herbicide application. If less than 25 inches of water was used to produce the 
crop, do not plant sorghum or oats for 18 months after appflcat'ton. Cool, wet weath­
er condnlons during the early stage of growth may increase the possibility of injury 
to sorghum. 
In the Eastern United States; moldboard plow before planting sugarbeels where 
spring application was made the previous season. 
In Florida only: do not plant vegetable crops other than those listed in the label 
within 5 months following the application of TRI-4 HF. 
Use of TRI-4 HF herbicide in accordance w'lth label d'lrecfions is expected to result in 
normal growth of rotational crops in most situations; however, various environmental 
and agronomic factors make it impossible to eliminate all risks associated with the 
use of this product and, therefore, rotational crop injury is always possible. 
DISCLAIMER 
The label Instructions for the use ot this product reflect the opinion of experts based 
on research and field use. The directions are believed to be reliable alll should be fa­
lowed careful/y. However, it is impossible to eliminate all risks inherently associated 
with use ofthis product. Crop injury, ineffectiveness or other unintended consequences 
may result because of such factors as weather conditions, presence of other materi­
als, herbicide resistant weed populations, or the use of, or appncation of the proouct 
contrary to label instructions, all of which are beyond the control of BASF Corporation 
(BASF). All such risks shall be assumed by the user. 
BASF shall not be responsible for losses or damages resulting from use of this prod­
uct in any manner not set forth on this label. User assumes all risks associate with 
the use at this product in any manner not specifically set forth on this label. 
BASF warrants only that the material contained herein confOfms to the chemical 
description On the label and is reasonably 'it for the use therein described when used 
in accordance wnh the directions for use, subject to the risks referred to above. BASF 
DOES NOT MAKE OR AurnORIZE Am AGENT OR REPRESENTATIVE TO MAKE />If1 
OTHER WARRANTIES, EXPRESS OR IMPLIED AND EXPRESSLY EXCLUDES AND DIS­
ClAIMS All IMPLIED WARRANTIES OF MERCHANTABllllY OR FITNESS FOR A PAR­
TICUlAR PURPOSE. 
BUYER'S EXClUSWE REMEDY AND BASF'S EXCLUSIVE ll4BllllY, WHETHER IN CON­
TRACT, TORT, NEGLIGENCE, STRICT ll4BILITY OR OTHERWISE, SHAll BE LIMITED 
TO REPAYMENT OF THE PURCHASE PRICE OF TRI-4 HF. In no case shall BASf or the 
seller be liable for conseQuentlal, special or indirect damages resulting from the use 
Of handling of this product. 
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 (and any other seller) shall have no lia­
bility for any loss, damage, or Injury arising rut of its use in any such combination not 
so specifically recommended. If used in a combination recommended by BASF, the 
liability of BASF (and any other seller) shall in no manner extend to any damage, loss 
or injury not directly caused by the inclusion of the BASF product in such combina­
tion use, and in any event shall be limited to return of the amount of the purchase 
price of the product. 
® Registered Trademarks of BASF 
lSencor is a trademark of Farbenfabnken Bayer GmbH, Leverkusen 
2Karmex aoo Lexone are trademarks of EJ. DuPont de Nemours and Company, Inc. 
JEptam and Vernam are trademarks of lenees Group Companies. 
~Cotoran and Caparoi are trademarks of Clba-Geigy Corporation 
5Avadex and Roundup are trademarks of tOOnsanto Company 
6Butyrac Is a trademark of Rhone Poulenc Company 
All rights reserved

NOTES 
15

© 2001 BASF Corporation 
NVA 2002-04-147-0087 
BASF Corporation 
26 Davis Drive 
Research Triangle Park, NC 27709 
BASF