# DUPONT SYNCHRONCY STS HERBICIDE - EPA Reg No: **352-599** - Registrant: CORTEVA AGRISCIENCE, LLC - Signal word: Caution - Active ingredients: Thifensulfuron (10.2%); Chlorimuron (31.8%) - Label accepted: 2001-08-29 - Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000352-00599-20010829.pdf --- (. ( 3Sc2-sCl9 ([UPON~ DuPont™ Synchrony® STS® herbicide " ......... A Growing Partnership With Nature" 1/ H- 113 '. i. ","""'-;..,-----:;' •• ,. ~,~."---;,;;; .. ;;;,;,..:;;,\ ... ;;;, ;: .iijJ\jO' ~L,""I .. Q""._' ,DuPON'f'"M, sYNcHRONY®STS® Highlights" , .' "~CO; ,; SYNCHRONY®STS® lsawilablein an;~1lrable " , , fonnincontainers as~ll as in preO;easuied 2.0 oWlce o~.~i:J6;r~~ipnMde~~ecti\'e'~:~'" ,,;, • Y,~enCeweCQ<:O'imoI Ofa~ spec6Wn0r., ;~ ,Forl!i9l!rid,l ," F:'-: :--. - ~ ~::~~. ,: -;' • certain'croP rotationi;:,applY., -:~;:¥' ::" .:::,_;~J£.~f.::.>;·-<>~t~~r . .J:'··' See RotatioIl;!! CIllP,Guidelines.':>:' ",.,.,'!':':. 'ce~~~~~~_~f~~mrl~~,~~h'_~~@rari~~_:,;"~ or hot and humid weather, affect thC perfojnlaitce, "t..:.: SYNCHRONY® STS®. See Environmental Conditions. Consult label text for complete in~ctions. ,Always read and follow label directions for use. TABLE OF CONTENTS Directions For Use ................................. _ ....... __ .................. 2 Application Information· All Uses ..................................... 2 Timing To Crop Stage .................................................... 2 Timing To Weeds ........................................................... 2 Tank Mix Restrictions ..................................................... 2 Cultivation .............................................................. , ........ 2 SYJliCHRONY® STS® at 0.5 oz per acre - in season use on "STS" soybeans only Rate and Weeds Controlled ............................................ 3 Sequential Applications ... " ....... " ............................ " ..... ' 3 Spray Additives ..... " .............. " ................. " ....... " ....... " .. 3 Tank Mixes for 0.5 oz per acre in season use .... , ............ , 3 SYNCHRONY® STS® at 0.5 oz per acre - BumdoWD Application Application Timing ....................... " .. " ............. , ..... " .. " .. 4 Spray Additives .......................................................... " .. 4 Weeds Controlled· Bumdown " ........................ " ........... 4 Weeds Controlled - Limited Residual .......................... " 4 SYJliCHRONY® STS® at 0.25 oz per acre - Reduced Rate Uses Postemergence Application Infonnation ............... , ..... " .. 5 Timing to Weeds ............ " ..... "" ....................... , ........... 5 Spray Additives ..................... " .. " .... , ...... , ....... ,,, .. , ....... , 5 . "STS" soybeans ......... " ...... " ................................. " .. 5 . Non-"STS" soybeans ......... " ... " ........................ " .. " .. 5 Weeds Controlled by 0.25 oz per acre SYNCHRONY® STS® ,." .... " ....... " ....................... " .. , 5 Tank Mixes with 0.25 oz per acre SYNCHRONY® STS® ...... ,." ....................... " ......... " 5 Weeds Controlled by 0.25 oz per acre SYNCHRONY® STS® preceded by DuPontnl AUTHORlTY®" .... " ......... ", ......... ", .. "." 5 Bumdown tankmix with AUTHORITYE ....................... 5 Precautions for 0.25 oz per acre SY:--ICHRONY® STS® .................... "., ............ , ....... " ... 5 ~~;~cga~~~~~;~~~~·::::::::::::::::::::::::::::::::::::::::::::::::::::::: ~ Ground Application " ....... " ......................................... , ... , 6 Aerial Application ......... , .................. " ...... , ................. , ... 6 Environmental Conditions and Biological Acti,ity ........... 6 Rotational Crop Guidelines .. , ........... " ............... " ..... "" .. , 6 The Jmporrance of Soil pH,." ....... ", ....... ,... . ..... " ... 8 Sprayer Preparation and Cleanup ..................................... 8 Spray Drift Management ....... , .................... " ................. ,. 8 Important Precautions ... _ ................................................. 9 Infonnation on Resistant \Veeds ........ . ........... 9 Integrated Pest Management ................... . .......... 10 Storage and Disposal .. "" ..... "" ...... ,,"", .. "."" ... ''', .... "." 10 Notice of\\!arranty ........................................................... 11 ( <[UPON~ DuPonfM Synchrony® STS® herbicide Dispersible Granules Active Ingredients ByWeigltt Chlorirnuron ethyl Ethyl 2-[[[[( 4-chloro-6-methoxypyrimidin-2- yl)amino )carbonyl]amino lsulfonyl]benzoate Thi fensulfuron methyl Methyl 3-[[[[( 4-methoxy-6-methyl-l,3,5- triazin-2-yl)amino JcarbonylJamino J sulfony I1-2-thiophenecarboxylate Inert Ingredients TOTAL EPA Reg. No. 352 - 599 31.8% 10.2% 58.0% 100.0% KEEP OUT OF REACH OF CHILDREN CAUTION 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 eye. 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 for treatment advice. IF INHALED: Move person to fresh air. If person is not breathing, call 911 or an ambulance, then given artificial respiration, preferably by mouth-to-mouth, ifpossible. Call a poison control center or doctor for treatment advice. Have the product container or label with you when caning a poison control center or doctor, or going for treatment. You may also contact 1-800-441-3637 for emergency medical treatment infonnation. I A EPTED AUG 2 9 2.:01 PRECAUTIONARY STATEMENTS HAZARDS TO HUMANS AND DOMESTIC ANIMALS Caution! Causes moderate eye irritation. Harmful if absorbed through skin or inhaled. Avoid contact with skin, eyes, and clothing. Avoid inhaling vapor or spray mist. Wash thoroughly with soap and water after handling. PERSONAL PROTECTIVE EQUIPMENT Some materials that are chemical resistmt to this product are listed below. If you want more options follow the instructions for Category A on an EPA chemical resistance category selection chart. Applicators and other handlers must wear: Long-sleeved shirt and long pants. Chemical Resistant Gloves Category A (such as buryl rubber, natural rubber, neoprene rubber, or nitrile rubber), all 2:14 mls. Shoes plus socks. Follow manufacturer's instructions :or cleaning/maintairing PPE. If no such instructions for was:.ables, use detergent and hot water. Keep and wash PPE separately from'other laundry. ENGINEERING CONTROL STATEMENTS 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 pan 170 Section 170.240 (d)(4-6)J. 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. ENVIRONMENTAL HAZARDS Do not apply directly to water, or to areas where surface water is present, or to intertidal areas below the mean high water mark. Do not contaminate \vater when disposing of equipment washwaters. DIRECTIONS FOR USE It is a violation of federal law to use this product in a manner inconsistent with its labeling. Do not apply this product in a way that will contact workers or other persons, either directly or through drift. Only protected handlers may be in the area during applicatiO!L For any requirements specific to your State or Tribe. consult the agency responsible for pesticide regulation. AGRICULTURAL USE REQUIREMENTS Use this product only in accordance with its labeling and with the Worker Protection Standard, 40 CFR part 170. This Standard contains requirements for the protection of agricultural workers on fanns, 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 interv.1. The requirements in this box only apply to uses of this product that are covered by the Worker Protection Standard. Do not enter or allow worker entry into treated areas during the restricted entry interval (REI) of 12 hours. PPE required for early entry to treated areas that is penmi ned under the Worker Protection Standard and that involves contact with anything that has been treated, such as plants, soil, or water, is: Coveralls. Chemical Resistant Gloves Category A (such as butyl rubber, natural rubber, neoprene rubber, or nitrile rubber), all ;:>:14 mls. Shoes plus socks. Use only in the geographies identified in the "Rotational Crop Guidelines" section of this label. DuPontHI SYNCHRONYlil STS® herbicide must be used only in accordance with recommendations on this label or in separately published DuPont recommendations. APPLICATION INFORMATION· ALL USES • DuPont™ SYNCHRONY® STSlil herbicide is a dispersible granule fonnulation which readily dissolves in water. • SYNCHRONY® STSQ'; may be used in conventional, no­ till, or conservation tillage soybean production. Timing To Crop Stage SYNCHRONY® STSIE, for in-season use, may be applied any time after the first trifoliate has opened but no later than 60 days before soybean maturity . • SYNCHRONY® STSIE, for bumdown use, may be applied up to 30 days before planting, or prior to soybean emergence after planting. Timing To Weeds Apply SYNCHRONY® STS® when WI:eds are young and actively growing (after the first true leaves have expanded, but before the weeds exceed the size indicated below). Applications made to weeds larger than the sizes indicated below, or to weeds under stress, may result in unsatisfactory control. Applications made after July 15 may result in less titan satisfactory weed control due to the Imge sizes of the weeds and increased weather stress. Tank Mix Restrictions When tank mixing SYNCHRONY® STS® with any other approved soybean pesticide, always read and follow all use directions, restrictioos and precautions of both SYNCHRONY® STSlil and the tank mix partner(s). When tank mixing, the most restrictive labeling applies. Cultivation Do not cultivate within 7 days of application. Cultivation may put weeds under stress by pruning roots, thus diminishing controL Cultivation approximately 14 days after application will help control suppressed weeds. SYNCHRONY® STS® AT 0.5 OZ PER ACRE - IN SEASON USE ON "STS" SOYBEANS ONLY 2 FOR USE ONLY ON SOYBEAN VARIETIES DESIGNATED AS "STS" • Application to soybean varietiesnot designated:,;. "STS" will result in severe crop injury andfocyieJd .~'"" loss.. _ --. ,"' .. :;it':/ ,",,'. t~\: ;~>., • DuPont will not warrant the safety ofthi' tieaInl.;nt to;' seed'sa,oed from previousY~'sproduCtion (buiiiui;,; seed).,.....,".:,··,:,',,' • These "STS" varieties must be purchased.fiom all, ,..{, authorized seed supplier. .;, .,.C:~ .' ';<'C': • The ':STS" designation indicates the ~i:>eanw.Iieii;;,' contains a proprietary trait thif enbanc'e~!tbe . \::'i"'!n s<>ybean's natural tolerance to DuPont soybtiaD .' . sulfonylurea herbicides. InfoJ1l1arion on'«STS" ' soybean varieties may be obtained from your seed supplier or DuPont representative. fit Weeds Controlled at 0.5 ozlacre rate in season "Apply DuPonf"" SYNCHRONY® STS® at a rate of 0.5 ounCe"per acre or at a rate of one soluble pack per" 4 acres for selective posternergenee control of the following broadleaf weeds: "" " Weed Beggarticks (Bidcns sp) Bristly SlaIbur Burcucwnbe,. Cocklebur Common Milkweed (above ground portion) Cowpea Dandelion (above ground portion) Florida Beggarweed Hemp Sesbania Lambsquar!erS Jerusalem Artichoke (above ground portion) Jimsonweed Marestail Mominsslory* (annual) Entireleaf Ivyleaf Pitted Smallflower Tall MUs1ard Pigweeds Redroot (Rough) Other.; Ragweed Common Oian" Sicklepod' Smartweed Ladysthumb Pennsylvania Sunflower Wild Poinsettia Yellow Nutsedge Velvet1eaf • See Sequential Applications section. •• Diameter Maximum Heigbt(in inches) 6 3 3 8 6 5 4 5 5 4 6 5 5 3 3 3 3 3 5" 8 8 4 4 3 8 8 8 2 3 8 When applied as directed, SYNCHRONY® STS® wiJI suppress the following weeds: Weed Buffalobur Kochia Pokeweed Purple Nutsedge Sowthistle, perennial (rosette stage) Spurred Anoda Thistle, Canadian Thistle, Russian Venice Mallow Maximum Heig!!t (in inobes) 6 3 6 4 6 3 4 3 3 Sequential Applications: 0.5 oz/acre rate in season A follow up applio:ation ofDuPoni'''' CLASSIC® herbicide or SYNCHRONY~ STS® herbicide may be made 2-3 weeks after a SYNCHRONY:!) STS® application to control weeds with multiple gel11lin.ti>n flushes or weeds under stress such as burcucumher, co .. -pea, giant ragweed, morningglory, and sicldepod. See Rotational Crop Guidelines for intervals following sequenual applications. Spray Additives: 0.5 oz/acre rate in season Applic3tioos of SYNCHRONY® STS® mUst inclillleacrop oilconcen!J:lllc. Refer to the DuPont bulletin "Approved ,: . Adj""ants for The with DuPont Row CrOp .... d Ceiea! ,\', . Herbiciiles-for a list'or approved adjuwntSandstiggeS!ed Use rates for SYNCHRONY® STS®. An ammoniuni nitrogen f~iilay also be required. .PfoducISJhat combine amm 90°F and < 30"10 relative humidity), make applications at the rate of2 fl oz of 2,4-DB and SYNCHRONY® STS®. 4 • The use of crop oil concentrate may increase temporary injury to soybeans. Some crop response may occur 5-7 days after application of SYNCHRONY® STS® and 2,4-DB to soybeans under stress. Temporary yellowing, leaf crinkling, and/or soybean growth retardation may occur fonowing application of SYNCHRONY® STS® and 2,4-DB. Under favorable growing conditions, the crop will quickly recover. SYNCHRONY® STS® AT 0.5 OZ PER ACRE - BURNDOWN APPLICATION SYNCHRONY® STS® at 0.5 oz per acre may be tankmixed wi1h 1-3 pints per acre "Roundup Ultra", 0.5-2.0 pints per acre "Touchdown 5", or equivalent rates of glyphosate-containing berbicides registered for soybeans for burndown of existing swnmer and winter annual weeds and limited residual control ofcenain summer annual broadleafweeds. Application Timing - BumdoWD SYNCHRONY® STS® tankmixed with "Roundup Ultra" or "Touchdown 5" can be applied up to 30 days before planting or prior to soybean emergence after planting. Spray Additives - Burndown • Always include 0.25% non-ionic surfactant. • The addition of I - 2 percent dry Ammonium Sulfate by weight or 8.5 - 17 pounds per 100 gallons of water may increase performance of this tank: mix. • For enhanced bumdown control, I pint of2,4-D L VE (0.5 Ibs a.ej A) may be added up to seven days prior to planting. Weeds Controlled - Burndown SYNCHRONY® STS® tank mixed with "Roundup Ultra" or "Touchdown" applied prior to planting will provide bumdown control of the weeds listed on page three of this label as well as control of most winter and summer annual broadleaf and grass weeds. Consult the "Roundup Ultra" and/or "Touchdown" specimea.labels for specific use instructions including all weeds controlled or suppressed, the suggested use rates, ma.'(imum weed size at application, restrictions, limitations and precautions. The addition of SYNCHRONY® STS® to "Roundup \';ltra" or "Touchdown" will increase the burndown control of the following weeds versus "Roundup Ultra" or "Touchdown" applied alone: Dandelion, Common Dock, Curly Hemp Sesbania Henbit Marestail Momingglory Spp., Annual Nutsedge, Yellow Primrose, cutleaf evening Ragweed, Common and Giant Sicklepod Smartweed, Annual Velvetleaf \"eeds Controlled - Limited Preemergence When used according to this label, SYNCHRONY® STS® at 0.5 ozJ A can provide limited preemergence control of the weeds listed below to contribute to a clean seedbed at planting. For season·long control, a planned PRE or POST sequential program is required. Jimsonweed Lambsquaner Marestail Nutsedge, yellow Pigweeds (Redroot, Smooth, Palmer) Smartweeds, Annual Ragweeds Due to heavy weed pressure, delayed planting or adverse environmental conditions, additional burndown control measures may be required at planting. DUPONTTM SYNCHRONV® STS® 0.25 OZ PER ACRE· REDUCED RATE USES (NON·USTS" SOYBEANS) • SYNCHRONY® STS® at 0.25 ovacre may be applied to any soybean type (which includes non-"STS", "STS" and "Roundup Ready") for broadleaf weed control. • SYNCHRONY® STS® at 0.25 ovacre may be used: postemergence, or tankmixed with DuPont AUTHORlTY® preplant or preemergence for improved bumdown control, or in a planned program following a preemergence, preplant incorporated or preplant burndown application of AUTHORITY®. SYNCHRONY® STS® at 0.25 oz per acre - postemergence application information Timing to Weeds Apply SYNCHRONY@ STS® to I - 4" weeds that are actively growing. Applications made to weeds that are in the cotyledon stage, larger than the size indicated, or to weeds under stress may result in unsatisfactory control. Spray Additives with 0.25 oz/acre SYNCHRONY® STS® "STS" soybeans: When using SYNCHRO!\'Y® STS® in soybeans designated as "STS", add crop oil concentrate at 8 pt per 100 gal of spray solution (1.0% v/v). Non-"STS" Soybeans: When using SYNCHRONY® STS® in soybeans that are NOT designated as "SIS", add nonionic surfactant at a rate of 2 pt per 100 gal of spray solution (0.25% v/v) unless directed by other supplemental labeling. Ammonium nitrogen fertilizer: Use a high quality, liquid nitrogen fertilizer such as: 28-0-0 or 30-0·0 10-34·0 AMS: 4 . 8 pIS per acre or 2 ~ 4 pts per acre or sprayable grade ammonium sulfate (21-0-0) at 2 - 4 Ib per acre Weeds controlled by 0.25 oz per acre SV:-;CHRONY® STS® alone: Cocklebur Pigweed species (including triazine resistant) \Vild sunflower And suppress growth of the following weed species: Lambsquarters Jimsonweed Milkweed, common (above ground portions only) Ragweed, common Smartweeds, annual Velvetleaf Tankmixes with 0.25 ovacre SYNCHRONY® STS® Add 0,75 - 1,25 ptfBere "Flexstar" for control of emerged 4" waterhemp and 2" eastern black nightshade, or improved control of velvet leaf and common ragweed. Add up to 0.15 oVacre "FirstRate" for improved control of emerged common ragweed and velvetleaf. Add up to 0,125 oliaen: DuPont™ PINNAQ,E® or up to 0.042 oziaere DuPont™ HARMONY® GT for improved control of emerged lambsquarters, common milkweed, annual smartweeds and velvetleaf. Refer to the "F1exstar", "FirstRate", HARMONY® GT and PINNACLE® labels for other weeds controlled and for the appropriate rate based on the weed sizes. Read and follow all use directions, restrictions and precautions of both SYNCHRONY® STS® and the tankmix partners. When tankmixing, the most restrictive labeling applies . Weeds controlled by 0.25 oz per acre SYNCHRONY® STS® preceded by 4 - 5.3 oz per acre AUTHORITY®: Cocklebur Jimsonweed Kochia u.mbsquarters Milkweed, Common (above ground portions only) Momingglory, Ivyleaf Nightshade, Eastern Black Pigweed species (including triazine resistant) Ragweed, Common Smartweeds, Annual Velvedeaf Waterhemp, Common and Tall Wild sunflower SYNCHRONY® STS® at 0.25 oz per acre - Bumdown tankmix with AUTHORITY® 5 For improved burndown with AUTHORlTY®, a tankmix of 0.25 ovacre SYNCHRONY® STSt: T AUTHORlTY® + 1% v/v COC may be applied to burndown broadleafweeds up to 3" in height and annual grasses up to I" in height. See the Pre-plant Burndown section of the AUTHORlTYt: label for weeds burned down by AUTHORlTYiE:. Addition of 0.25 ovacre SYNCHRONY® STS® will improve burndown of dandeliofi, marestail, prickly lettuce, giant ragweed, common ragweed, pennycress, small-flowered bittercress, shepherd's purse and tansy mustard. One pint of2,4-D LYE (0.5Ibs ae.lacre) may be tankmixed with AUTHORITY® - 0.25 oVacre SYNCHRONY® STS® up to 7 days prior to planting. Precautions for 0.25 oz SYNCHROr-.'Y® STS® uses • A temporary crop response may occur following an application of SYNCHRONY® STS® to soybeans not designated "STS" in the variety name. • Applications made when the crop and weeds are under stress from moisture, cold, heat, high humidity, disease, insect pressure and prior herbicide stress may result in excessive crop response and/or reduced weed control effectiveness. • Do not tankmix "Poas! Plus" with 0.25 ovacre SYNCHRONY® STS® unless the soybean is designated as an "STS" variety. MIXING INSTRUCTIONS 1. Fill the tank 114 to \/3 full of water. 2. While agitating, add the required amOllllt ofSThCHRONY® STS®. 3. Continue adequate agitation. ( 4. DuPont™ SYNCHRONY® STS® should be thoroughly mixed with water in the spray tank before adding any other material. As the tank is filling, add (in order): other herbicide(s), the required spray adjuvan~ and the nitrogen fertilizer where required. 5. Apply SYNCHRONY® STS® spray preparation within 24 hours of mixing to avoid product degradation. 6. If the mixture has settled, thoroughly reagitate before using. Additional Use and Handling Information for SYNCHRONY® STS® When Packaged in Water Soluble Packets Soluble Packs are contained in waterproof, reseaIable plastic bags, with plastic bags enclosed in a cardboand box. The individual Soluble Packs will dissolve completely in water. Open the outer resealable plastic bag, remove the required number of Soluble Packs for the desired application rate, and follow the mixing instructions above. Precautions: TIley··.·meali\ble .. Il!W&'cfS; OT sOluble in water. . ~~~~~~nfu~~~~'?""" .,..... . • Excessive handling of the packs, or exposure to moisture, will cause breakage. • Do not touch the packs with wet hands or place them on wet surfuces. • Protect unused Soluble Packs by resealing them in the resealable bag. APPLICATION EQUIPMENT Ground Application (See Also Spray Drift Management) Broadcast Application Postemergence in soybeans, use a minimwn of 10 gal water per acre. Under heavy weed pressure or dense crop foliage, increase minimum spray volume to 15-25 gal per acre. Use flat fan nozzles at 25-60 psi for SYNCHRO~® STS® applications. For burndown applications of existing vegetation, flat fan nozzles and a minimum of 20 gallons per acre are recommended so as to thoroughly wet the foliage to be burned down. Do not use flood, rain drop, whirl chamber, or controlled droplet applicator (CDA) type nozzles. Unacceptable crop injwy, excessive spray drift, or poor weed control may result. For proper spray coverage adjust the boom and nozzle height according to the specifications listed by the nozzle manufacturer. Band Application Because band applicators spray a narmwer area than broadcast applicators, use proportionately less spray solution for band applications. Carefully calibrate the band applicator to not exceed the labeled rate. Flat fan nozzles are recommended. 6 Carefully follow the nozzle manufacturer's instroctions for nozzle orientation, distance of the nozzles from the crop and weeds, spray volumes, calibration, and spray pressure for band applications. For additioual infonnation on row banders, see DuPont bulletin, "Application Accuracy - Row Banders." Aerial Application (See Also Spray Drift Management) Use nozzle types and arrangements that will provide optimum spray distribution and maximum coverage at 3-5 gal per acre. Use a minimum 00 gal water per acre. Under heavy weed pressure or dense crop foliage, increase the minimum spray volume to 5 gal per acre. Do not apply during a temperature inversion, when winds are gusty, or when other conditions could produce poor coverage and/or off-target spray movement ENVIRONMENTAL CONDITIONS AND BIOLOGICAL ACTIVITY SYNCHRONY® srs® rapidly inhibits the growth of susceptible weeds. Leaves of susceptible plants yellow 3-5 days after application, followed, in controlled plants, by the death of the growing point. SYNCHRONY® STS® will provide complete control of susceptible weeds in 7-21 days. Suppressed plants may remain greeo but will be stunted and noncompetitive. SYNCHRONY® STS® will pro'vide ~"sIT"'\lI~''Whl'n applied to young, actively growulg ,,~~ei~\~~ifefi"J:~~'>:\ depends on: weed·' ,t use result • mecharui:.al i;;;;;:;~1-~~rt~\li~~~~~~l,g;; • drought' . /7 water-saturated S\lif • disease • insect injury • prioiherbiddeinjUlj _' Stress affects some weeds, such as pigweed, more than others. Delay application until stress passes and weeds start to grow again. Severe stress (drought, disease, insect damage, or nutrient deficiency such as iron chlorosis) following application may also result in poor weed control. Do not apply SThCHRONY® STS® if rain is expected within 1 hour or weed control may decrease. ROTATIONAL CROP GUIDELINES Important Crops other than soybeans following a SYNCHRONY® STS® application can vary in their sensitivity to low concentrations ofSYNCHRONY® STS® remaining in the soil. Rotatiooal cmp guidelines must be followed. When SThCHRONY~ STS® is applied in sequence with DuPont™ CANOPY®, DuPont™ CANOPY® SP or DuPont™ CANOPY XL® follow rotational crop guidelines listed on the corresponding label. Region A: The states of Delaware, illinois, Indiana, Iowa (fields located outside the boundaries of the Clarion-Nicollet-Webster aod Hamburg-Ida-Monona soil associations and fields located outside the historic flood plain of the Missouri River), Kansas, Kentucky, Marylaod, Michigan (fields south ofinterstate 96 or per supplernentallabeling), Missouri (except the Bootheel), Nebraska (fields south of Route 30 and east of Route 281), New Jersey, Ohio, Pennsylvaoia and West Virginia. Region B: The states of Alabama (except the "Black Belt" where soil pH must be less thao 7.0), Arkansas, Florida, Georgia, Louisiaoa, Missouri (Bootheel region only), Mississippi (except the "Black Belf' where soil pH must be less thao 7.0), North Carolina, Oldahoma, South Carolina, Tennessee, Texas (fields east of Route 183), aod Virginia. Region C: The states of Minnesota, South Dakota, Wisconsin, Iowa (fields inside the boundaries of the Oarion-NicoDet­ Webster and Hamburg-Ida-Monona soil associations and fields located inside the historic floodplain of the Missouri River) aod Nebraska (fields northofroute 30 and west of Route 281). Dll not extml 0.25 Qzlacre per season in rqiQO estates. Follow Recrop Intervall if: The field is located in a ""Region A" state (all pH soils) AND,EITHER A maximum of 112 ovacre of DuPontn.< SYNCHRONY® STS® was applied for the use season, OR A maximum of 112 ovacre ofSYNCHRONY® STS® in sequence with 113 ovaere of DuPontn.< CLASSlC® was applied for the use season. FoUow Recrop Intervall if: The field is located in a "Region A" state with soil pH 7.0 or less Ao'lD A maximum of 112 ovaere ofSThCHRONY® STS® was applied in sequence with a maximum rate of 314 o7lacre of CLASSlC®, or a maximum of two applications of SY:-;CHRONY® STSCE at a rate of 112 ovaere per application was applied. FoUow Recrop Interval 2 if: The field is located in a "Region B" state (all pH soils except those with pH greater thao 7.0 in Virginia aod the Black Belt region of Alabama aod '>lississippi) Ao"l!) A ma.ximum of 112 ovacre ofSThCHRONY® STS® was applied in sequence with 314 ovaere of CLASSIC®, or a maximum of two applications ofSYNCHRONY® STS® at a rate of 112 ovacre per application was applied. FoUow Recrop Interval 3 if: The field is located in a "Region A, B or C' state AND A maximum of 1/4 ovacre SYNCHRONY@ STS® was applied during the use season. 7 Rotational Interval (months) Following the Use of SYNCHRONY® STS®* Crop Intervall Interval 2 Interval3 Soybeans Anytime Anytime Anytime Cereal Grains, Pastm< Grasses (such as Fescue and Ryegrus) Dry Beans, lGdney Beans Peas, Snap Beaas 3 9 FieldCom{lR) 8 Field Com"(States in Regions A & q 9 Field Com"(States of AR, MO (Boolbeel only], NC, OK, 1N, and TX) Field Com"(States of AL, FL, GA, LA, MS,andSC) Popcorn 9 SOIgbum 9 Tobatto (transplant) 9 Tomato (!nmsplant) 9 Peanuts Rice Cotton Alfulfa Clover 15 15 9 12 12 3 9 7 8 7 9 9 9 9 6 9 8 9 9 3 9 8 9 9 9 9 9 6 9 9 9 9 Cabbage 18 18 18 CanoJa(Rapeseed) 18 18 18 Cucumber 18 18 9 Flax 18 18 18 Lentils 18 18 18 Mustard 18 18 18 Pumpkins 18 18 9 Sunflower 18 18 9 Sweet Com 18 18 9t Warennelon 18 18 9 Carrots 30 30 30 Onions 30 30 30 Pota""'" (mcluding Sweet Potatoes) 30 30 30 Potatoes, irish 8tt Sugar Beets 30 30 30 Any crop not listed 30 30 30 • lfSYNCIlRONY~ S~ orlbe 1atl 150 - 200 microns). The best drift management strategy is to apply the largest droplets that provide sufficient coverage and control. The presence of sensitive species nearby, the environmental conditions, and pest pressure may affect how an applicator balances drift control and coverage. APPL YJNG LARGER DROPLETS REDUCES DRlIT POTENTIAL, BUT WILL NOT PREVENT DRlIT IF APPLICATIONS ARE MADE IMPROPERLY OR UNDER UNFAVORABLE ENVIRONMENTAL COl';1)lTlONS! See "ind, Temperature and Humidity, and Temperature Inversions sections of this label Controlling Droplet Size - General Techniques Volume - Use high flow rate nozzles to apply the highest pracli>;al spray volume. Nozzles with higher rated flows produce larger droplets. 8 • Pressure - Use the lower spray pressures recommended for the nozzle. Higher pressure reduces droplet size and does not improve canopy penetration. WHEN HIGHER FLOW RATES ARE NEEDED, USE A HIGHER­ CAPACITY NOZZLE l:'lSTEAD OF INCREASING PRESSURE. 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. Controlling Droplet Size - Aircraft • Number of Nozzles - Use the minimum nwnber of nozzles with the highest flow rate that provide unifonn coverage. • Nozzle Orientation - Orienting nozzles so that the spray is emitted backwards, parallel to the airstream will produce larger droplets than other orientations. • Nozzle Type - Solid stream nozzles (such as disc and core with swirl plate removed) oriented straight back produce larger droplets than other nozzle types. Boom Length - The boom length should not exceed 3/4 of the wing or rotor length - longer booms increase drift potential. • Application Height - Application more than lOft above the canopy increases the potential for spray drift. ( BOOM HEIGHT Setting the boom at the lowest labeled height (if specified) which provides unifonn coverage reduces the exposure of droplets to evaporation and wind- For ground equipment, the boom should remain level with the crop and have minimal bounce. WIND Drift potential increases at wind speeds ofless than 3 mph (due to inversion potential) or more than 10 mph. Howcver, many factors, including droplet size and equipment type determine drift potential at any given wind speed- AVOID GUSTY OR WINDLESS CONDITIONS. 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 hot and dry conditions, set up equipment to produce larger droplets to reduce effects of evaporation. TEMPERATURE INVERSIONS Drift potential is high during a temperature inversion. Temperature inversions restrict \"ertical air mixing, which causes small suspended droplets to remain close to the ground and move laterally in a concentrated cloud. Temperature inversions are characterized by increasing temperature with altitude and are common on nights with limited cloud cover and light to no wind. They begin to fonn as the sun sets and often continue into the morning. Th~.J presence can be indicated by groand 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 lavers and moves laterally in a concentrated cloud (under low V:ind conditions) indicat~ an inversion, while smoke that moves upward and rapidly dissipates indicates good vertical air mixing. SHIELDED SPRAYERS Shielding the boom or individual nozzles can reduce the effects of wind. However, it is the responsibility of the applicator to verify that the shields are preventing drift a:>d not interfering with unifonn deposition of the product. AIR ASSISTED (AIR BLAST) FIELD CROP SPRAYERS Air assisted field crop sprayers carry droplets to the targ~t via a downward directed air stream. Some may reduce the potential for drift, but if a sprayer is unsuitable for the application andlor set up improperly, high drift potential can result. It is the responsibility of the applicator to determine that a sprayer is suitable for the intended application, is configured properly, and that drift is not occurring. Note: Air assisted field sprayers can affect product performance by affecting spray coverage and canopy penetration. Consult the application equipment section of this label to detennine if use of an air assisted sprayer is recommended. AIR ASSISTED (AIR BLAST) TREE AND VINE SPRAYERS Air assisted tree and vine sprayers carry droplets into the canopy of trees and vines via a radially or laterally directed air stream. These sprayers are not suitable for applying herbicides. In addition 10 the general drift management principles already described, the following specific practices will further reduce the potential for drift.: • Adjust deflectors and aiming devices so that spray is only directed into the canopy. • Block off upward pointed nozzles when there is no overhanging canopy. • Use only enough air volume to penetrate the canopy and provide good coverage. • Do not allow spray to go beyond the edge of the cultivated area. Spray the outside row only from outside the planting. IMPORTANT PRECAUTIONS Do nOtg,:;'