crop-chem-docs/corpus/epa_ppls/241-396.md

STRUCTURE RESIDUAL HERBICIDE

• EPA Reg No: 241-396
• Registrant: BASF AGRICULTURAL SOLUTIONS US LLC
• Signal word: Danger
• Active ingredients: Pendimethalin (30%); Imazaquin (1.2%); Imazethapyr (1.4%)
• Label accepted: 1998-08-24
• Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000241-00396-19980824.pdf

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( u. S. ENVIRONMENTAL PROTECTION AGENCY Office of Pesticide Programs Registration Division (750SC) 401 "M" St .• S.W. Washi,ngton, D.C. 20460 NOTICE OF PESTICIDE: _x ___ Registration ____ Reregistration (under FIFRA, as amended) Name ,d Address of Registrant (include ZIP Code) : American Cyanamid Company P.o. Box 400 Princeton, NJ 08543-0400 BOte; Changes in labeling differing be tted to and accept.ed by the correspondence GO this product EPA Reg. Number: 241-396 Term of Issuance: Date of Issuance: AUG 2 4 1998 conditional Name of Pesticide Product: STRUCTURE residual herbicide in connection-with this registration must of the label in commerce. In-any number. (In the basis of information furnished by the registrant. the above named pesticide is hereby =egiEeed/reregistered der the Federal Insecticide. Fungicide and Rodenticide Act. Registra~ion is in no way to be construed as an endorsement or recommendation of this product by the Agency. In c=aer to proct health and the environment. the Administrator, on his motion. may at any time suspend or cance] the regis=ration c£ a pesticide in accordance with the Act. The acceptance of any name in connection ·",it.h the regist.~t.ion of a product under t.hi$ Act is not to be con$trued as giving the registrant a right to -?:xcit::.sive use c-: t.he name or to its use if it has been covered by others. This product is conditionally registered in accordance with FIFRA sec. 3(c) (7) (A) provided that you:

1. Submit and/or cite all data required for registration/ reregistration of your product under FIFRA sec. 3(c) (5) when the Agency requires all registrants of similar products to submit such data; and submit acceptable responses required for reregistration of your product under FIFRA section 4.
2. Make the following label changes listed below before you release the product for shipment: a. Add the phrase, "EPA Reg. No. 241-396". b. When labels are printed assure that the Signal Word DANGER - PELIGRO and Keep Out Of The Reach Of Children meet the type size required by 40 CFR 156.10(h) (1) (iv). Signature of ApF~oving Official: Date: AUG 24 1998

.. ' ,,' ( I' page 2 EPA Reg. No. 241-396 c. Either retain the spray drift statements that appear on the proposed labeling for this product or update the Spray Drift Section so it complies with language recommended by the Industry - EPA Spray Drift Task Force. For your information, the following is the initial paragraph for the spray drift management patements that appear on a recetly registered pesticide product: SPRAY DRIFT Avoid spray drift. Do not apply when weather conditions may cause drift. Do not allow this product to drift on to non-target areas. Drift may result in illegal residues or injury to adjacent crops and vegetation. To avoid spray drift, DO NOT apply aerially when wind speed is greater than 10 mph or during periods of temperature inversions. Use of larger droplet size will also reduce spray drift. d. since the section for use of an either an Adjuvant or a Surfactant is ahead of all of the Tank Mixtures directions, the label still implies that surfactants can be used with Roundup Ultra or Touchdown in contradiction to their label rest~ictions. Either modify the format or add a statement to the these tank mix directions specifying not to apply with surfactants or adjuvants. 3. Submit one (1) copy of your final printed labeling before you release the product for shipment. Refer to the A-79 enclosure for a further description of final printed labeling. If these conditions are not complied with, the registration will be subject to cancellation in accordance with FIFRA section 6 (e). Your release for shipment of the product constitutes acceptance of these conditions. A stamped copy of the label is enclosed for your records. Enclosure James A. Tompkins Product Manager (25) Herbicide Branch Registration Division (7505C)

( ( c STRUCTURE"" residual herbicide FOR USE IN ROUNDUP READY"' SOYBEANS ACTIVE INGREDIENTS: Imazaquin: 2-[4,S-dihydro-4-methyl-4-(l-methylethyl)-5-oxo-lH-imidazol-2- , yIJ-3-quinolinecarboxylic acid .................................................................... 1.2% Imazethapyr: (±)-2-[ 4,S-dihydro-4-methyl-4-(l-methylethyl)-S-oxo-l H- imidazol-2-yIJ-5-ethyl-3-pyridinecarboxylic acid ...................................... 1.4% Pendimethalin: (N-I-ethylpropyl)- 3,4-dimethyl-2,6-dinitrobenzenamine ......................... 30.0% INERT INGREDIENTS * .................................................................................................. 67.4% TOTAL .............................................................................................................................. 100.00% STRUCTURE contains 2.92 pounds of active ingredient per gallon (2.68 pounds ai pendimethalin, O. I I pounds acid equi pounds acid equivalent of imazethapyr). *Contains petroleum distillates. i;;\I. ~ AUG 2 ~ 1998 U.S. Patent No. 4,798,619 EPA Reg. No. 241-XXX .... .. ,....Iaa:t stlc .... , 7 r, ... lah.Hdi. Act. _ a t f "dM, .deld- JU.f~;:"" ;~ KEEP OUT OF REACH OF CHILDREN DANGER!/jPELIGRO! EPA Est. No. Si usted no entiende la etiqueta, bu.<.que a alguien para que se la explique a usted en detalle. (If you do not understand this labeL fmd someone to explain it to you in detail.) In case of an emergency endangering life or property involving this product, call collect, day or night, Area Code 973-683-3100. STATEMENT OF PR>\CTICAL TREATMENT IF IN EYES: Hold eyelids open and flush with a steady, gentle stream of water for 15 minutes. Get medical attention. IF ON SKIN: Wash with plenty ofsoap and water. Get medical attention. IF SWALLOWED: Call a physician or Poison Control Center. Do not induce vomiting. Drink promptly a large quantity of milk, egg whites, gelatin solution, or if these are not available, drink large quantities of water. Avoid alcohol. NOTE TO PHYSICIAN: Probable mucosal damage may contraindicate the use of gastric lavage. Net Contents: See Additional Precautionary Statements Inside. AMERICAN CYANAMID COMPANY NORTH AMERICA AGRICULTURAL PRODUCTS DIVISION CROP PROTECTION PRODUCTS DEPARTMENT PARSIPPANY, NEW JERSEY 07054 ©1998 TM STRUCTURE is a trademark of American Cyanamid Company ® Roundup Ready is a registered trademark of Monsanto Agricultural Products Co. 8/98 /

TABLE OF CONTENTS SUBJECT PAGE ) Ingredients cover Statement of Practical Treatment cover Table of Contents 2 Precautionary Statements 3 Environmental Hazards 4 Directions for Use 4 Agricultural Use Requirements 5 Storage and Disposal 5 Disclaimer 6 General Information 7 Use Area 8 Weeds Controlled 9 ') Directions for Conventional, Minimum, and No-till Applications 11 Use Rate II Mixing Instructions 11 Spraying Instructions 12 Ground Applications 12 Aerial Applications 12 Applications with Fertilizers 14 Applications in Liquid Fertilizers 14 ) Liquid Fertilizer Compatibility Determinations 14 Applications with Dry Bulk Fertilizers 15 / Application Instructions , 17 Preplant Applications Including Burndown 17 Preplant Incorporated Applications 17 Preemergence Applications 17 ) Herbicide Combinations 18 Herbicide Combinations for Bumdown in Conservation Tillage Systems 18 STRUCTURE Tank Mixtures with 2,4-D 18 STRUCTURE Tank Mixtures with Roundup® Ultra or Touchdown'" 18 STRUCTURE Tank Mixtures with Gramoxone'" Extra 19 STRUCTURE Followed by Roundup Ultra in a Sequential Program 19 Rotational Crop Guidelines 20 Precautions 20 Weed Scientific Names 22 2 8/98 .;.' ."

r) ) ) r) PRECAUTIONARY STATEMENTS HAZARDS TO HUMANS AND DOMESTIC ANIMALS DANGER!! i PELIGRO! Corrosive: Causes irreversible eye damage and skin irritation. Harmful if swallowed or absorbed through skin. DO NOT get in eyes, on skin or on clothing. Personal Protective Equipment (PPE): Some materials that are chemical-resistant to this product are listed below. If you want more options follow the instructions for category E and F on an EPA chemical resistance category selection. Applicaton and other handlers must wear: • Coveralls over short-sleeved shirt and short pants. • Chemical-resistant gloves such as barrier laminate, butyl rubber ~ 14 mils, nitrile rubber ~ 14 mils, neoprene rubber ~14 mils or viton ~14 mils. • Chemical-resistant footwear plus socks. • Protective eyewear • Chemical-resistant headgear for overhead exposure. • Chemical-resistant apron when cleaning equipment, mixing, or loading. Discard clothing and other absorbent materials that have been drenched or heavily contaminated with this product's concentrate. DO NOT reuse them. Follow manufacturer's instructions for cleaning/maintaining PPE. If no such instructions for washables, use detergent and hot water. I Keep and "ash PPE separately from other laundry. Engineering Controls: When handlers use closed systems. enclosed cabs, or aircraft in a manner that meets the requirements listed in the Worker Protection Standard (WPS) for agricultural pesticides [(40 CFR 170.240)(d)(4-6)], the handler PPE requirements may be reduced or modified as specified in the WPS. User 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 and 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. 3 8/98

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-.- ",.,,,- """"'q ¥:'.M'\l",".M.; :_.i.M!!l!'~~"~>!o -'.'i;'"~'''''-''' - ENVIRONMENTAL HAZARDS This product is toxic to fish. DO NOT apply directly to water, to areas where surface water is present or to intertidal areas below the mean high water mark. Drift and runoff from treated areas may be hazardous to aquatic organisms in adjacent aquatic sites. DO NOT contaminate water when disposing of equipment washwaters. This product demonstrates the properties and characteristics associated with chemicals detected in ground water. The use of this product in areas where soils are permeable, particularly where the water table is shallow, may result in ground-water contamination. DIRECTIONS FOR USE It is a violation of F ederallaw to use this product in a manner inconsistent with its labeling. This labeling must be in the possession of the user at the time of pesticide application. Observe all cautions and limitations in this leaflet and on the labels of products used in combination with STRUCTURE. Always use in accordance with the more restrictive label restrictions and precautions. Do not use STRUCTURE other than in accordance with the instructions set forth on this label. The use of STRUCTURE not consistent with this label may result in injury to crops. Keep container closed to avoid spills and contamination. / DO NOT apply this product through any type of irrigation system. DO NOT apply this product in a way that will contact workers or other persons, either directly or through drift. Only protected handlers may be in the area during application. For any requirements specific to your State or Tribe, consult the agency responsible for pesticide regulation. 4 8/98 .... "). - -,

') ) . ) AGRICULTURAL USE REQUIREMENTS Use this product only in accordance with its labeling and with the Worker Protection Standard, 40 CFR part 170, This Standard contains requirements for the protection of agricultural workers on farms, forests, nurseries, and greenhouses, and handlers of agricultural pesticides, It contains requirements for training, decontamination, notification, and emergency assistance, It also contains specific instructions and exceptions pertaining to the statements on this label about personal protective equipment (PPE), and restricted-entry interval. The requirements in this box only apply to uses of this product that are covered by the Worker Protection Standard, Do not enter or allow worker entry into treated areas during the restricted entry interval (REI) of 24 hours. Exception: if the product is soil-injected or soil-incorporated, the Worker Protection Standard, under certain circumstances, allows workers to enter the treated area if there will be no contact with anything that has been treated. PPE required for early entry to treated areas that is permitted under the Worker Protection Standard and that involves contact with anything that has been treated, such as plants, soil, or water, is: • Coveralls over short-sleeved shirt and short pants. • Chemical-resistant gloves such as barrier laminate, butyl rubber ~ 14 mils, nitrile rubber ~ 14 mils, neoprene rubber ~ 14 mils or viton ~14 mils. • Chemical-resistant footwear plus socks. • Protective eyewear • Chemical-resistant headgear for overhead exposure. STORAGE AND DISPOSAL DO NOT contaminate water, food, or feed by storage or disposal. STORAGE: DO NOT STORE BELOW 40°F. Store in original containers and keep closed. Store in a cool, dry place. PESTICIDE DISPOSAL: Pesticide wastes are acutely hazardous. Improper disposal of excess pesticide, spray mixture, or rinsate is a violation of Federal law. If these wastes cannot be disposed of by use according to label instructions, contact your State Pesticide or Environmental Control Agency, or the Hazardous Waste Representative at the nearest EPA Regional Office for guidance. COl\iAlNER DISPOSAL FOR 2.S GALLONS: Triple rinse (or equivalent). Then offer for recycling or reconditioning, or puncture and dispose of in a sanitary landfill, or incineration, or if allowed by state and local authorities, by burning. Ifburned, stay out of smoke. Consult federal, state or local authorities for approved alternative disposal procedures . CONTAINER DISPOSAL FOR MINI-BULK AND BULK: Return empty container for reuse. 5 8/98 /

) DISCLAIMER The label instructions for the use of this product reflect the opinion of experts based on research and field use. The 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, ineffectiveness or other unintended consequences may result because of such factors as weather conditions, presence of other materials. or the use of, or application of the product contrary to label instructions, all of which are beyond the control of American Cyanamid Company. All such risks shall be assumed by the user. American Cyanamid Company shall not be responsible for losses or damages resulting from use of this product in any manner not set forth on this label. User assumes all risks associa!ed with the use of this product in any manner not specifically set forth on this label. American Cyanamid Company warrants only that the material contained herein conforms to the chemical description on the label and is reasonably fit for the use therein described when used in accordance v.ith the directions for use, subject to the risks referred to above. CYANAMID DOES NOT MAKE OR AUTHORIZE ANY AGENT OR REPRESENTATIVE TO ~1AKE ANY OTHER WARRANTIES, EXPRESS OR IMPLIED k'\ffi EXPRESSLY EXCLUDES AND DISCLAIMS ALL IMPLIED WARRANTIES OF ~IERCHANT ABILITY OR FITNESS FOR A PARTICULAR PURPOSE. BUYER'S EXCLUSIVE REMEDY AND AMERICAN CYANAMID'S EXCLUSIVE LIABILITY, WHETHER ~ CONTRACT, TORT, NEGLIGENCE, STRICT LIABILITY OR OTHERWISE, SHALL BE LIMITED TO REPAYMENT OF THE PURCHASE PRICE OF STRUCTURE. In no case shall Cyanamid or the seller be liable for consequential, special or indirect damages resulting from the use or 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 American Cyanamid Company then American Cyanamid Company shall have no liability for any loss, damage or injury arising out of its use in any such combination not so specifically recommended. If used in combination recommended by American Cyanamid Company, the liability of American Cyanamid Company shall in no manner extend to any damage, loss or injury not directly caused by the inclusion of the American Cyanamid Company product in such combination use, and in any event shall be limited to return of the amount of the purchase price of the American Cyanamid Company product. 6 8/98 /

) ) .. ) GENERAL INFORMATION STRUCTURE residual herbicide applied as an early preplant, preplant incorporated. or preemergence treatment, provides early season and residual control of broadleaf and grass weeds in Roundup Ready soybeans. STRUCTURE reduces competitive effects from weeds during the first weeks after soybean planting. If weeds emerge later. Roundup Ultra should be applied postemergence in a sequential program to maintain weed control. After STRUCTURE is applied, some susceptible weeds may emerge. However, growth then stops and the weeds either die or are not competitive with the crop. A timely cultivation may aid in the control of certain weeds or improve general weed control when adequate moisture is not received after application. Cultivation should be shallow. STRUCTURE reaches the growing points of susceptible weeds either by direct contact in the soil, or by root uptake and rapid translocation to the growing points. Therefore, adequate soil moisture is important for optimum activity of STRUCTURE. The amount of rainfall or irrigation required following application depends on existing soil moisture, soil texture and organic matter content. Sufficient water to moisten the soil to a depth of 2 inches is normally adequate. If adequate moisture is not received within 7 days after treatment, then a cultivation or postemergence herbicide application may be needed to improve weed control. When adequate moisture is received after dry conditions, STRUCTURE will provide residual control of susceptible germinating weeds; activity on established weeds will depend on the weed species and the location of its root system in the soil. Occasionally, internode shortening of soybean plants may be obser .. ed with STRUCTURE applications. This has no effect on soybean yields. Naturally occurring biotypes' of some of the weeds listed on this label may not be effectively controlled by this and/or other products with either the ALS! AHAS enzyme inhibiting mode of action or the mitotic inhibiting mode of action. Other herbicides with the ALS/ AHAS enzyme inhibiting mode of action include the sulfonylureas (e.g., Accent~, Basis~, Classic~, Concert~, Exceed~, Permit", Pinnacle", etc.), the sulfonamides (e.g., Broadstrike™, etc.) and the pyrimidyl benzoates (e.g. ,Staple", etc.). Herbicides with the mitotic inhibiting mode of action include the other dinitroaniline herbicides such as PROWL "3.3 EC herbicide, TREFLANTM, TRI-4" HF herbicide and Sonalan™. If naturally occurring biotypes are present in a field which are resistant to one of the herbicides in this premix and are not controlled by the other mode of action herbicide in this premix, STRUCTURE should be tank-mixed or applied sequentially with an appropriate registered herbicide having a different mode of action to ensure control. • A weed biotype is a naturally occurring plant within a given species that has a slightly different, but distinct, genetic makeup from other plants. See your Cyanamid representative for additional information . 7 8/98 •• ' ·c" /

) ) USE AREA STRUC11JRE can be applied only in the states or parts of states shaded in the following map, and listed below. KANSAS: East ofU.S. Highway 77 NEBRASKA: Sociheastem part of the state in the counties of Cass, Fillmore, Gage, Jefferson, Johnson, Lancaster, Nemaha, Otoe, Pawnee, Richardson, Saline, Seward, Thayer, and York IOWA: In the counties of Mills, Fremont, Montgomery, Page, Adams, Taylor, Union, Ringgold, Clarke, Decatur, Lucas, Wayne, Monroe, Appanoose, Wapello, Davis, Jefferson, Van Buren, Henry, Lee, and Des Moines ILLINOIS: South of State Highway 116 west of Peoria, south of U.S. Highway 24 east of Peoria MICillGAN: South of State Highway 20 west of Midland, south of State Highway 46 east of Midland MISSOURI, INl)IANA, OHIO, KENTUCKY, VIRGINIA, WEST VIRGINIA, PENNSYL V ANlA, MARYLAND, DELA WARE, AND NEW JERSEY. 8 8/98 I /

( ( ( ''''''.'.''''''">'.'-'.;y~,,<, ... WEEDS CONTROLLED When used as directed in a sequential program, a soil application of STRUCTURE, followed by a postemergence application of 1 pint per acre of Roundup Ultra to 1-3 inch weeds, will control or reduce competition from the weeds listed below. BROADLEAF WEEDS WEEDS COI'TROLLED Anoda, spurred Buffalobur Burcucumber Carpetweed Cocklebur, common Copperleaf hophornbeam Virginia Eclipta Galinsoga Jimsonweed Knotweed Kochia Lambsquarters, common Mallow, Venice Marestail Marshelder Morningglory entireleaf ivyleaf pitted smallflower tall Mustard species Nightshade black Eastern black hairy Pigweed Palmer redroot smooth spiny Poinsettia, wild Puncturevine Purslane, common Pusley, Florida Ragweed, common giant 9 LEVEL OF COl\lROL Control Control Control Control Control Control Control Control Control Control' Control Control Control Control Control Control Suppression Suppression Suppression Control Suppression Control Control Control Control Control Control Control Control Control Control Control Control Control Control / 8/98 I ,I ;." .i" I I , I

lL~J5" BROADLEAF WEEDS CONTINUED WEEDS CONTROLLED LEVEL OF CONTROL ) Sage, barnyard Suppression Sida, prickly (teaweed) Control Smartweed ladysthumb Control Pennsylvania Control Spurge prostrate Control spotted Control Sunflower, common Control Texasweed Suppression Velvetleaf Control Waterhemp, common Control -) tall Control GRASS WEEDS WEEDS CONTROLLED LEVEL OF CONTROL Barnyardgrass Control Com, volunteer Control ! Crabgrass ) large Control smooth Control Crowfoot grass Control / Cupgrass, woolly Control' Foxtail giant Control ) green Control yellow Control Goosegrass Control Itchgrass Control Johnsongrass rhizome Suppression seedling Control Millet, wild-pro so Control Panicurn browntop Control fall Control Texas Control Sandbur, field Control Shattercane Control Signalgrass, broadleaf Control Sorghum-almum Control ) Witchgrass Control - 10 8/98

) WEEDS CONTROLLED Nutsedge, yellow SEDGES LEVEL OF CONTROL Suppression 'To a.btain consistent control or suppression of these weeds under a wide range of environmental conditions, a preplant iocorporated application of SlRUCTURE is required. DIRECTIONS FOR CONVEJIoTIONAL, MINIMUM, AND NO-TILL APPLICATIONS USE RATE STRUCTURE: 3 pints/acre Apply STRUCTIJRE at a broadcast rate of 3 pints per acre either preplant, preplant incorporated, or preemergence (including minimum and no-till systems). At this broadcast rate, one gallon of ) STRUCTURE will treat 2.67 acres of soybeans. ) ) MIXING INSTRUCTIONS When water is used as the carrier, first fill the spray tank one-fourth to one-half ful\ with clean water. While agitating, add the required amount of STRl'CTURE. Fill the remainder of the tank with clean water. An antifoaming agent may be added to the tank if needed. Maintain agitation while spraying to ensure a uniform spray mixture. When tank-mixing STRUCTURE with recommended herbicides, add the other herbicides and adjuvants in the fol\owing order wrule agitating. Thoroughly mix each ingredient before adding the next ingredient. I. Fill spray tank 114 to 112 full with clean water. 2. Add soluble packet products and thoroughly mix. 3. Add WP (wettable powder), DG (dispersible granule), DF (dry flowable) or LF (liquid flowable) formulations. 4. Add aqueous solution products. 5. Add STRUCTURE. 6. Add other EC (emulsifiable concentrate) products. 7. Add surfactant to the spray tank.. 8. Add liquid fertilizer. 9. While agitating, fill the remainder of the tank with water. When paraquat is included in a tank-mixture, add 8 ounces of non-ionic surfactant per 100 gallons of spray mi'l.'tUre as the last ingredient in the tank. In areas v.ith very hard water, a compatibility agent may be added to the tank to ensure uniform dispersion of the spray mixture. To avoid injury to sensitive crops, spray equipment used t'Or STRUCTURE applications must be drained and thoroughly cleaned with water before being used to apply other products. II 8/98 ~ ."',". ~t'._ •• /

·s.P~~~~U~ /,::::) ~ DO NOT apply if wind'conditions, temperatur inversio oonditiolls. 01 otiter-eoodi.ti.uns..J-'l: cause drift onto adjacer~ areas or sensitive crop Sensitive crops include, but are not limited to, leafy vegetables, sugarets, and c _____ -' ------ Avoid overlaps when spraying. GROUND APPLICATIONS: Uniformly apply with properly calibrated ground equipment in 10 to 40 gallons of water, or 20 or more gallons of liquid fertilizer per acre. Use higher gallonage for fields with dense vegetation or heavy crop residues. A spray pressure of20 to 40 psi is recommended. AERIAL APPLICATIONS: ) Uniformly apply with properly calibrated aerial equipment in 5 or more gallons of water per acre. ) ) Avoiding spray drift at the application site is the responsibility of the applicator. The interaction of many equipment- and weather-related factors detennine 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-target drift movement from aerial applications to agricultural field crops. I. The distance of the outermost nozzles on the boom must not exceed ~ the length of the wingspan or rotOL 2. Nozzles must always point backward parallel with the air stream and never be pointed 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 presented below. INFORMA nON 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 coverage and control. Applying larger droplets reduces drift potential, but will not prevent drift if applications are made improperly, or under unfavorable environmental conditions (see WIND, TEMPERATURE AND HUMIDITY, and TEMPERATURE INVERSIONS). CONTROLLING DROPLET SIZE • Volume - Use high flow rate nozzles to apply the highest practical spray volume. Nozzles with higher rated flows produce larger droplets. 12 8/98 I

• Pressure - Do not exceed the nozzle 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. • "lumber of Nozzles - Use the minimum number of nozzles that provide uniform coverage. • "lozzle Orientation - Orienting nozzles so that the spray is released parallel to the airstream produces larger droplets than other orientations and is recommended practice. Significant deflection from the horizontal will reduce droplet size and increase drift potential. • "lozzle 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 '!. 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 applications at the lowest height that is safe reduces exposure of droplets to evaporation and wind. SW_-\TH ADJUSD.1ENT When applications are made with a crosswind, the swath will be displaced downward. Therefore, on the up and downwind edges of the field, the applicator must compensate for this displacement by adjusting the path of the aircraft upwind. Swath adjustment distance should increase with increasing drift potential (higher wind, smaller droplets, etc.). wp'-l) Drift potential is lowest berween 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. TEMPERA TORE AND HUMIDITY When making applications in low relative humidity, set up equipment to produce larger droplets to compensate for evaporation. Droplet evaporation is most severe when conditions are both hot and dry. TEMPERA TORE INVERSIONS Applications should not occur during a temperature inversion because drift potential is high. Temperature inversions restrict vertical air mixing, which causes small suspended droplets to remain in a concentrated cloud. This cloud can move in unpredictable directions due to the light variable winds common during inversions. Temperature inversions are characterized by increasing temperatures with altitude 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 13 8/98 /

) presence can be indicated by ground fog; however, if fog is not present, inversions can also be identified by the movement of smoke from a ground source or an aircraft smoke generator. Smoke that layers and moyes laterally in a concentrated cloud (under low wind conditions) indicates an inversion, while smoke that moves upward and rapidly dissipates indicates good vertical air mixing. SENSITI\ 'E AREAS The pesticide should only be applied when the potential for drift to adjacent sensitive areas (e.g. residential areas, bodies of water, known habitat for threatened or endangered species, or non­ target crops) is minimal (e.g. when wind is blowing away from the sensitive areas). Applicator is responsible for any loss or damage which results from spraying STRUCTURE in a manner other than recommended in this label. In addition, applicator must follow all applicable state and local regulations and ordinances in regard to spraying. APPLICATION IN FERTILIZERS ) APPLICATIONS IN LIQUID FERTILIZERS ) STRUCTURE can be applied in liquid fertilizers. Follow all STRUCTURE label recommendations regarding incorporation, timing of application, special instructions and precautions. For other STRUCTURE tank mix partners, refer to the individual product labels for specific recommendations for using these products with liquid fertilizers. Apply treatments in 20 or more gallons of liquid fertilizer per acre with ground equipment. Maintain continuous agitation in the spray tank to prevent separation. To prevent clogging, use only flood nozzles with no nozzle screens . . -'1.11 individual state regulations relating to fluid fertilizer mixing, registration, labeling and application are the responsibility of the individual andlor company selling the STRUCTUllilliquid fertilizer mixture. ) LIQUID FERTILIZER COMPATIBILITY DETERMINATIONS If a liquid fertilizer and herbicide(s) mixture separates in the spray tank, clogged equipment and uneven application can result, which can cause poor weed control and crop injury. .-\lways predetennine the compatibility of STRUCTURE in the specific liquid fertilizer to be used according 10 the following directions: J. Add 1 pint offertilizer to each of2 one-quart jars. 2. Add 1/2 teaspoon of adjuvant to one jar. 3. Add to each jar the correct amount of STRUCTURE as specified in the table below. 4. Close both jars and shake thoroughly for 10 seconds. Let them stand for 30 minutes and then observe the results. Look for signs of separation, an oily layer or globules, sludge, flakes .) or other precipitates. 14 8/98 . . /

) ) 5. Determine compatibility: (a) If the mixture without adjuvant does not separate, use this mixture in your spray tank. (b) If the mixture with adjuvant does not separate, but the one without adjuvant separates, use the adjuvant mixture in your spray tank. Add the adjuvant to the liquid fertilizer as directed on the manufacturer's label. (c) If either mixture separates, but mixes readily with shaking, the mixture can be used providing good agitation is maintained in the spray tank. (d) If separation of the mixture occurs, and agitation and, or the addition of adjuvant/compatibility agent does not correct the problem, DO NOT use the herbicide(s) in that specific liquid fertilizer. Teaspoons of STRUCTURE to be Added to 1 Pint of Liquid Fertilizer Solution Gallons of Liquid Fertilizer to be Applied per Acre 20 30 40 STRUCTURE (tsp) 2 IV, I ) APPLICATIONS WITH DRY BULK FERTILIZERS ) STRUCTURE may be impregnated on dry bulk fertilizers. When applied as directed. STRUCTURE/dry bulk fertilizer mixtures provide weed control equal to that provided by the same rates of STRUCTURE applied in water or liquid fertilizer. Apply STRUCTURE/dry bulk fertilizer mixtures only with ground equipment. All individual state regulations relating to dry bulk fertilizer blending, registration, labeling, and application are the responsibility of the individual and/or company selling the STRUCTh"REIdry bulk fertilizer mixture. A minimum of 200 pounds and a maximum of 450 pounds of dry bulk fertilizer impregnated with the recommended amount of STRUCTURE must be applied per acre. DO NOT impregnate STRUCTURE onto coated ammonium nitrate or limestone because these materials will not absorb the herbicide. Dry fertilizer blends containing mixtures of ammonium nitrate or limestone may be impregnated with STRUCTURE. A minimum of 200 pounds of impregnated dry bulk fertilizer, excluding the weight of ammonium nitrate or limestone, must be applied per acre. ,) Apply STRUCTURE at the rate of 3 pints per acre. Use the following table to determine the amount of STRUCTURE to be impregnated on a ton of dry bulk fertilizer based on the rate of fertilizer which will be applied per acre. 15 8/98 .ttl ,1--· I

) ) ) ) RATE CHART FOR IMPREGNATION OF DRY BULK FERTILIZER WITH STRUCTURE (Pints of STRUCTURE per Ton of Fertilizer) STRUCTURE Rate Fertilizer Rate Pints of STRUCTURE Per Acre Ibslacre Per Ton of Fertilizer 3 Pints 200 30 250 24 300 20 350 17 400 15 450 13 113 For rates not listed in the table, calculate the pints of STRUCTURE to be impregnated on a ton of dry bulk fertilizer using the following formula: 2000 Pounds of dry fertilizer per acre x 3 pints of STRUCTURE per acre (recommended rate)

Pints of STRUCTURE per ton of fertilizer To impregnate STRUCTURE on bulk fertilizer, use a closed rotary-drum mixer or other commonly used dry bulk fertilizer blender equipped with suitable spray equipment. Spray nozzles must be placed to provide uniform coverage of STRUCTURE onto the fertilizer during mlxmg. . Apply the STRUCTURE/dry bulk fertilizer mixture with an accurately calibrated dry fertilizer / spreader. The STRUCTURE/dry bulk fertilizer mixture must be spread uniformly on the soil surface. Uneven spreading can cause poor weed control and crop injury. 16 8/98

) ) ) APPLICATION INSTRUCTIONS STRUCTURE may be used in Roundup Ready soybeans grown in conventional, minimum-, or no-till systems. STRUCTURE may be applied early preplant or preplant incorporated up to 15 days before planting. Preemergence applications may be made during or after planting but before the crop cracks the soil surface. DO NOT apply postemergence (or at cracking) to soybeans. Adequate soil moisture is required for optimum activity of STRUCTURE. If sufficient rainfall or irrigation to activate STRUCTURE is nO! received within 7 days after application, a thorough shallow tillage or cultivation, or a postemergence herbicide treatment, (as appropriate to the tillage system), is recommended to enhance weed control. PREPLANT APPLICATIONS INCLUDING BURNDOWN Surface apply STRUCTURE up to 15 days before planting. For enhanced burndown of existing vegetation in no-till or reduced tillage systems, STRUCTURE may be applied in tank mix with, or following, either 2,4-0, Roundup Ultra.. Touchdown, or Gramoxone Extra. Refer to the respective product labels for rates, . methods of application, proper timing, weeds controlled, restrictions, and precautions. PREPLANT INCORPORATED APPLICATIONS Apply STRUCTURE before planting and incorporate uniformly into the top I to 2 inches of soil. STRUCTURE may be applied immediately before planting or up to 15 days prior to planting. Incorporate within 7 days after application. If soybeans are planted on beds, apply and incorporate after bed formation using PTO-driven equipment or rolling cultivator. PREEMERGE~CE APPLICATIONS SURFACE APPLICATIONS MADE BEFORE PLANTING STRUCTURE may be surface applied up 10 15 days before planting, both north and south of Interstate 1-80. SURF ACE APPLICATIONS MADE AFTER PLANTING STRUCTURE may be surface applied up to 2 days after soybean planting (before crop emergence) south of Interstate 1-80. 00 NOT APPLY STRUCTURE AFTER SOYBEAN PLANTING North ofInterstate 1-80, except in the states ofIndiana, Ohio, and Michigan. Note: Plant soybeans at least one inch deep and adjust planters to ensure adequate seed coverage. HERBICIDE COMBINATIONS For conservation tillage systems, STRUCTURE may be tank mixed with 2,4-0, Roundup Ultra, Touchdown, or Gramoxone Extra to kill existing vegetation. STRUCTURE must be used only in accordance with the directions on this label. Always follow the more restrictive label limitations and precautions when using tank mixes. 17 8/98 /

( \ ( HERBICIDE COMBINATIONS FOR BURNDOWN IN CONSERVATION TILLAGE SYSTEMS For bumdown applications in conservation tillage systems: • add an adjuvant or a surfactant to the spray mixture, ANO • a nitrogen-based fertilizer at 1-2 qtJacre, or ammonium sulfate (spray grade) at 2.5lbs/acre • ensure thorough coverage using a minimum of 10 gallons of water per acre, with a higher gallonage for fields with dense vegetation or heavy crop residues • use appropriate nozzles to ensure thorough coverage • use ground equipment only. Adjuvant or Surfactant: Use either a methylated seed oil concentrate (e.g., SUN-IT IF") or a crop oil concentrate at 1% v/v (1 gallon per 100 gallons of spray mixture), or a nonionic surfactant (containing at least 80% active ingredient) at 0.25% v/v (1 quart per 100 gallons of spray mixture). Tank Mixtures with 2,4-D 2,4-0 may be used with STRUCTURE alone or in combination with other STRUCTURE ta:Jk mixes prior to planting for control of some annual broadleaf weeds. Use the follo\ing rates of 2,4-0 in tank mixtures with STRUCTURE: 2,4-0 Formulation Ester Amine Rate (lb a.i.lA) 0.5 0.5 Refer to the 2,4-0 label for weeds controlled. Minimum Oays Before Planting 7 15 ( Observe all precautions and limitations on the 2,4-0 label. Tank Mixtures with Roundup Ultra or Touchdown l~ When applied early preplant or preemergence, Roundup Ultra or Touchdown may be mixed with ~ STRUCTURE for control of weeds common to no-till production. Roundup Ultra Qr (j Touchdown will aid in the burndown of existing weeds, while STRUCTURE controls noo­ emerged weeds and some emerged weeds. The rate of Roundup Ultra or Touchdown, for tank mixes with STRUCTURE is the same as t!le rate of these products when used alone. Observe all precautions and limitations on the Roundup Ultra or Touchdown product labels. 18

) ) ) ) Tank Mixtures with Gramoxone Extra Gramoxone Extra, at 1.5 to 2.5 pints per acre, may be used with STRUCTURE alone or in combination with other tank mixes for the control of certain emerged grasses and broad leaf weeds. Use the 2.5 pint rate if weeds are 4 to 6 inches tall. Weeds over 6 inches may not be controlled with this trealment. Apply up to 14 days before, during or immediately after planting. When Gramoxone Extra is included in a tank mixture, add a nonionic spreader surfactant at a rate of 8 fl. oz. per 100 gallons of spray mixture as the last ingredient in the tanle Gramoxone Extra will control most annual emerged weeds and suppress many emerged perennials. Refer to the Gramoxone Extra label for specific use recommendations and weeds controlled. Observe all precautions and limitations on the Gramoxone Extra label. STRUCTURE FOLLOWED BY ROUNDUP ULTRA IN A SEQUENTIAL PROGRAM STRUCTURE may be applied early preplant, preplant incorporated, or preemergence to Roundup Ready soybeans for early season weed control and residual activity on broadleaf weeds and grass weeds. If weeds emerge later, Roundup Ultra may be applied postemergence for weed control. Apply Roundup Ultra postemergence at 1 pint per acre when weeds are 1-3 inches, and prior to canopy closure. The addition of ammonium sulfate (spray grade) at 2.5 Ibs per acre, is recommended. For sequential treatments, a sufficient time period should elapse between treatments to allow an appropriate assessment of weed control needs. Note: DO NOT apply Roundup Ultra postemergence to soybeans that are not glyphosate­ resistant. Avoid conta.:t with all non glyphosate-resistant plants on which treatment is not intended, since se'·ere injury or destruction will result from drift, splash, or other contact with Roundup Ultra. Observe all precautions and limitations on the Roundup Ultra product label. 19 8/98

) ) ) ) ROT A TlONAL CROP GUIDELINES The following rotational crops may be planted after applying STRUCTURE in soybeans at the recommended rate: I. Anytime: Soybeans 2. Four months: Wheat 3. Nine and one-half months: IMI-CORN'" seed hybrids'; Field com (non IMI-CORN seed hybrids) 4. Eleven months: . Barley; Edible beans 5. Eighteen months: Alfalfa; Grain sorghum; Oats; Pop com; Sweet com; Peas 6. Twenty six months: Potatoes 7. Forty months: Sugar beets'; Red table beets'; all crops not listed elsewhere m the ROTATIONAL CROP GUIDELINES'. , Contact your chemical dealer, seed supplier, or American Cyanamid to obtain information regarding the availability of imidazolinone tolerant (IMI-CORN) field com hybrids which are adapted to your area. , Following 40 months after a STRUCTURE application, and before planting sugar beets, red table beets, or any crop not listed elsewhere in the ROTATIONAL CROP GUIDELINES, a successful field bioassay must be completed. The field bioassay consists of a test strip of sugar beets (or the other intended rotational crop) planted across the previously treated field and grown to maturity. The test strip should include low areas and knolls, and include variations in soil such as type and pH. If no crop injury is evident in the test strip, sugar beets (or the other intended rotational crop) may be planted the following year. If the field is limed to adjust soil pH prior to planting sugar beets (or other rotational crops not listed in the ROTATIONAL CROP GUIDELINES), apply the lime at least 12 months prior to planting. PRECAUTIONS DO NOT use STRUCTURE other than in accordance with the instructions set forth on this label. DO NOT apply STRUCTURE postemergence to soybeans as crop injury may occur. DO NOT use on crops other than soybeans. Crops other than soybeans, such as cotton, com, grain sorghum, rice and vegetables, may be injured by spray drift or other indirect contact with STRUCTURE. To avoid injury to sensitive crops, spray equipment used for STRUCTURE applications mlli"! be drained and thoroughly cleaned with water before being used to apply other products to these crops. Use of STRUCTURE in accordance with label directions 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 use of this product and, therefore, 20 8/98 ., ./ I

) ) ) ) rotational crop injury is always possible. For specific recommendations see the ROTATIONAL CROP GUIDELINES. Only rotational crops harvested at maturity may be used for feed or food. Replanting: If replanting is necessary in a field previously treated with STRUCTURE, the field may be replanted to soybeans. Rework the soil no deeper than the treated zone. DO NOT APPLY A SECOND TREATMENT OF STRUCTURE. In the event of a crop loss due to weather, soybeans can be replanted. DO NOT work the soil deeper than 2 inches. If soybeans are furrow irrigated, till the soil prior to planting winter wheat or barley. The beds should be broken up and the soil mixed with tillage equipment set to cut 4-6 inches deep. There should be an interval of at least 90 days between an application of STRUCTURE and soy bean harvest. DO NOT graze or feea treated soybean forage, hay or straw to livestock. Application of produru containing chlorirnuron ethyl (e.g., Classic, Canopy~, Concert, Gemini~, Lorox~ Plus, Preview.8, Pinnacle, Synchrony~, etc.), imazaquin (e.g., DETAIL~, SCEPTER~, SCEPTER~ 70 DG, SCEPTERO.T., SQUADRON~, STEEL~, TRI-SCEPT~), imazethapyr (e.g., PURSUI~, PURSUI~PLUS EC, etc.), or flumetsulam (e.g., Broadstrike) the same year as labeled rates of STRUCTURE may increase the risk of injury to sensitive rotational crops. Consult labels for recommended uses of these products in combinations. For additional information regarding the use of STRUCTURE, call telephone no. 800-942-0500. TRI-4 HF, PROWL 3.3 EC, IMI-CORN, DETAIL, SCEPTER, SCEPTER 70 DG, SCEPTER O.T., SQUADRON, TRI-SCEPT, PURSUIT, PURSUIT PLUS EC, and STRUCTURE are trademarks or registered trademarks of American Cyanamid Company. SUN-IT II is a trademark of Agsco, Inc. Broadstrike, Sonalan, and Treflan are trademarks of Dow AgroSciences. Accent, Basis, Canopy, Classic, Concert, Gemini, Lorox, Pinnacle, Preview, Staple, and Synchrony are registered trademarks ofE.I. du Pont de Nemours and Company. Permit, Roundup, and Roundup Ready are registered trademarks of Monsanto Agricultural Products Co. Exceed is a registered trademark of Nov artis, Inc. Gramoxone and Touchdown are registered trademarks ofZeneca Inc. 21 8/98 /

) ) ) ) BROADLEAF WEEDS Anoda, spurred Buffalobur Burcucumber Carpetweed Cocklebur, common Copperleaf, hophombeam Virginia Eclipta Galinsoga Jimsonweed Knotweed Kochia Lambsquarters, common Mallow, Venice Marestail Marshelder Momingglory, entireleaf ivy leaf pitted smallflower tall Mustard Species Nightshade, black eastern Black hairy Pigweed, Palmer redroot smooth spiny Poinsettia, wild Puncturevine Purslane, common Pusley, Florida Ragweed, common giant Sage, barnyard Sida, prickly (Teaweed) Smartweed, ladysthumb Pennsylvania WEED SCIENTIFIC NAlWES 22 (Anoda cristata) (Solanum rostratum) (Sicyos angulatus) (Mollugo verticillata) (Xanthium strumarium) (Acalypha ostryifolia) (Acalypha virginica) (Eclipta prostrata) (Galinsoga) (Datura stramonium) (Polygonum) (Kochia scoparia) (Chenopodium album) (Hibiscus trionum) (Conyza canadensis) (Iva xanlhifolia) (Ipomoea hederacea var. intergriuscula) (Ipomoea hederacea) (Ipomoea lacunosa) (Jacquemontia tamnifolia) (Ipomoea purpurea) (Brassica spp.) (Solanum nigrum) (Solanum ptycanthum) (Solanum sarrachoides) (Amaranthus palmeri) (Amaranthus retroflexus) (Amaranthus hybridus) (Amaranthus spinosus) (Euphorbia heterophylla) (Tribulus terrestris) (Portulaca oleracea) (Richardia scabra) (Ambrosia artemisiifolia) (Ambrosia trijida) (Salvia reflexa) (Sida spinosa) (Polygonum persicaria) (Polygonllm pensylvanicum) 8/98 ,"', ,..

) ) ) ) ) BROADLEAF WEEDS CONTINUED Spurge, Prostrate Spotted Sunflower, Common Texasweed Velyetleaf Waterhemp, common tall GRASSES Barnyardgrass Corn, volunteer Crabgrass, large smooth Crowfootgrass Cupgrass, woolly Foxtail, giant green yellow Goosegrass Itchgrass Johnsongrass, seedling Millet, \ild-proso Panicurn, browntop fall Texas Sand bur, field Shattercane Signalgrass, broadleaf Sorghurn-almurn Witchgrass SEDGES Nutsedge, yellow 8219 (Euphorbia humistrata) (Euphorbia maculata) (Helianthus annuus) (Caperonia palustris) (Abutilon theophrasti) (Amaranthus rudis) (Amaranthus tuberculatus) (Echinochloa crus-gal/i) (Zea mays) (Digitaria sanguinalis) (Digitaria ischaemum) (Dactyloctenium aegyptium) (Eriochloa villosa) (Setaria Jaberi) (Setaria viridis) (Setaria glauca) (Eleusine indica) (Rottboellia cochinchinensis) (Sorghum halepense) (Panicum miliaceum) (Panicum Jasciculatum) (Panicum dichotomif/orum) (Panicum texanum) (Cenchrus incertus) (Sorghum bicolor) (Brachiaria platyphyl/a) (Sorghum almum) (Panicum capillare) (Cyperus esculentus) ('T CYANA",'O American Cyanamid Company North America Agricultural Products Division Crop Protection Products Department Parsippany. NJ 07054 1;)1998 23 % 8/98