# DUPONT SYNCHRONY STS DF HERBICIDE - EPA Reg No: **352-573** - 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/000352-00573-20010829.pdf --- ~---- ~"'913 8/~'1IOJ.oo I <®PONn DuPont™ Synchrony® STS®DF herbicide D L " ......... A Growing Partnership With Nature" H - I f,~ DUPONTI'M SYNCHRONY® STS® DF Highlights • SYNCHRONY® STS® DF is available in a measurable fonn in containers. SYNCHRONY® STS® DF provides selective postemergence weed control of a large spectrum of broadleaf weeds. SYNCHRONY® STS® DF may be tank mixed with DuPont™ ASSURE® II, or other products for increased weed control. Inc lude a crop oil concentrate or a nonionic surfactant and ammonium-based nitrogen fertilizer where required. • SYNCHRONY® STS® DF may be applied by ground . (blfndrast 0' mind) .orby air,. '.' :.' _Ed" ·"·:t-:t>·.,,,·~i.·'l'J';',-', -.', _ :.' ,.',;".' ',c '''<'~ .. ~~.For groUI)d ~pp!iF#ori; applyiti'10-2Sgan~ns ?"flfllter' i;. Lat25-6" SYNCHROlfXiIl>,~TS®Pf.9'lly;.mt~jJ<~wi!li:; '.? : 0.75· 1.25 pt/acre "Flexstar" 0.75· 1.5 ptlacre "Reflex" 0.5 - 1.5 pt/acre "Blazer", or 4· 6 fluid ovacre "Cobra" Refer to the "Flexstar", "Reflex", I'Blazer" and "Cobra" labels for the appropriate rate based on the weed sizes to be controlled Nonionic surfuctant or crop oil concentrate must be added. For best results with SYNCHRONY® STS® DF plus "ReO .. " or "Flexstar", use a methylated seed oil-based or petroleum oil·based crop oil concentrate at 8 pt per 100 gallon spray solution (l % vlv). o For best results with SYNCHRONY® STS® DF plus "Blazer", use nonionic surfactant at 2 pt per 100 gallon spray so.:'lution. Use of crop oil concentrate is not recommended, as s.!'\ ere injW)' may occur. ror best results "ith DuPont'" SYNCHRONY® STS® DF plus "Cobra", use crop oil concentrate at 4 pt per 100 gallon ~iJy solution (0.5% v/v). fyr control of Prickly Sida and Hemp Sesbania tank mix OS QZ SYNCHRONY® STS® OF wjth 8-12 5 fl oz -Cobra", C", the higher "Cobra" rate when Prickly Sida Qr Hemp Sesbania are beavy or if Prickly Sida and Hemp Sesbania approach the ma.'umum size of 1" or 4", respectively. Include a nonionic sur'actant at 1-2 pt per I ()() gallons of spray solution (.125-.25% \i 'Y~ Do not use crop oil concentrate when tankmixing SY\CHRONY® STS® OF and "Cobra" at these rates. • Precautions for tankm",", of SYNCHRONY® STS® DF plus "Flexstar", "Reflex", "Blazer", or "Cobn" Tank mix applications of SYNCHRONY® STS® OF plus "'F\:xstar", "Reflex", "Blazer", or I'Cobra" may not control W«ds listed Qn the SYNCHRONY® STS® OF label as ~letely as applications ofSYNCHRONY® STS® OF alone. SJ~CHRONY® STS® DF and Posremergence Grass HtriiciJes SYNCHRONY® STS® OF and SYNCHRONY® STS® OF tankmixes may be lank mixed with postemergence grass herbicides such as DuPont™ ASSURE® Il herbicide. For best results, apply SYNCHRONY® STS® OF seven days before or one day after the grass herbicide. Refer to the grass herbicide label for precautions and specific use information. St~CHRONY® STS® DF and "FirstRate" HerbicidL For improved Ragweed and Cocklebur control, add between 0.075 - 0.3 oz per acre to 0.5 oz per acre SYNCHRONY® STS® Of. These lankmixes will control up to 10" Cocklebur or Common Ragweed and up to 12" Giant Ragweed. Use a lower am:xmt of "FirstRate" when weeds are less than the maximum size and under good growing conditions. Use a higher amount of "FtmRate" when weeds are approaching the maximum size and'or under unfavorable growing conditions. A good quality petroleum-based or methylated seed oil-based crop oil ccncentrate must be added to the tank mix at the rate of 8 pin!> per l()() gallons of spray solution or at 1% vlv. An ammonium nitrogen fertilizer may be added as directed under the "Spray Additives" section. S~CHRONY® STS® DF and 2,4-DB • In soybeans at least 8" tall, SYNCHRONY® STS® OF may be tank mixed with 1-2 fl oz per acre of 2,4-08 for improved control of giant ragweed up to 4" tall, annual momingglory and other broadleaf weeds. • Applications of SYNCHRONY® STS® OF and 2,4-D8 must include a nonionic surfaciant at the rate of 2 pints per 1 ()() gal or crop oil concentrate at 8 pints per 1 ()() gal of spray solution (1.0% v/v). See Spray Additives. • Apply a tank mix of SYNCHRONY@ STS® Of and 2,4-08 by ground only. • In Kansas and Missouri (except the bootheel area), when conditions are excessively hot and dry ( > 90°F and < 30% relative humidity), make applications at the rate of 2 fl oz of 2,4-08 and SYNCHRONY@ STS® OF. 4 • The use of crop oil concentrate may increase temporary injury to soybeans. Some crop response may occur 5-7 days after application of Sy>';CHROJ','Y® STS® OF and 2,4-08 to soybeans under stress. Temporary yellowing, leaf crinkling, and/or soybean gro\\th retardation may occur following application of SYNCHRONY® STS® OF and 2,4-08. Under favorable growing conditions, the crop will quickly recover. SVNCHRONV® STS® OF AT 0.5 OZ PER ACRE· BURNOOWN APPLICATION SYNCHRONY® STS® Of at 0.5 oz per acre may be tankmixed with 1-3 pints per acre "Roundup Ultra", 0.5-2.0 pints per acre "Touchdown 5", or equivalent rates of glyphosate-containing herbicides registered for soybeans for burndown of existing summer and winter annual weeds and limited residual control of certain summer annual broadleaf weeds. Application TIming - Bumdown SYNCHRONY® STS® OF 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 1 ()() gallons of water may increase performance of this tank mix. • For enhanced burndown control, 1 pint of 2,4-0 LYE (0.5 lbs .. eJ A) may be added up to seven days prior to planting. Weeds Controlled - Burndown SYNCHRONY® STS® OF 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 swnmer annual broadleaf and grass weeds. Consult the "Roundup Ultra" and/or "Touchdown" specimen labels for specific use instructions including all weeds controlled or suppressed, the suggested use rates, maximum weed size at applicatio~ restrictions, limitations and precautions, The addition of SYNCHRONY® STS® OF to "Roundup Ultra" or "Touchdown" will increase the burndown control of the following weeds versus "Roundup Ultra" or "T ouchdown" applied alone: Dandelion, Common Dock, Curly Hemp Sesbania Henbit Marestail Momingglory Spp., Annual Nutsedge, Yellow ~se.cutleafevening Ragweed, Common and Giant Sicklepod Smartweed, Annual Velvet1eaf Weeds Controlled - Limited Preemergence \\nen used according to this label, OuPont™ SYNCHRONY® STS® OF at 0.5 ozl A can provide limited preemergence control of the weeds listed below to contribute to a clean seedbed at planting. For season·\ong control, a planned PRE or POST sequential program is required. Jimsonweed Lambsquartcr Marestail Nutsedge, yellow Pigweeds (Redroo~ 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. SYNCHRONY® STS® OF 0.25 OZ PER ACRE· REDUCED RATE USES (NON·"STS" SOYBEANS) • SYNCHRONY® STS® OF at 0.25 ozlacre may be applied to any soybean type (which includes non-"STS", "STS" and "Roundup Ready") for broadleaf weed control. • SYNCHRONY® STS® OF at 0.25 ozlacre may be used: postemergence, or tankmixed with DuPont AUTHORlTY® preplant or preemergence for improved burndown control, or in a planned program following a preemergence, preplan! incorporated or preplant burndown application of AUTHORITY®. SVNCHRONV® STS® OF at 0.25 oz per acre - postemergence application information Timing to Weeds Apply SYNCHRONY® STS® OF 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 ozlaere SYNCHRONY® STS® DF "STS" soybeans: When using SYNCHRONY® STS® OF in soybeans designated as "STS", add crop oil concentrate at 8 pt per 100 gal of spray solution (\.0"10 v/v). Non-"STS" Soybeans: When using SYNCHRONY® STS® OF in soybeans that are NOT designated as "STS", 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 (2 I ·0.0) at 2 • 4 Ib per acre Weeds controlled by 0.25 oz per acre SYNCHRONY@ STS@ DF alon.: Cocklebur Pigweed species (including triazine resistant) Wild sunflower 5 And suppress gro"th of the following weed species: Lambsquarters Jimsonweed !-.lilkweed, common (above ground portions only) Ragweed, common Smartweeds, annual Velvet leaf Tankmix.s with 0.25 ozlaer. SYNCHRONY@ STS® DF Altl1 0,75 - 1,25 ptlaere "Flexstar" for control of emerged 4" waterhemp and 2" eastern black nightshade, or improved control ofvelvetleaf and common ragweed. Add up to 0.15 ozlacre "FirstRate" for impro .... ed control of emerged common ragweed and velyetleaf Add Up to 0.125 ozlacr. DuPont'" PINNACLE® orJllL1n 9M2 ozlaere DuPont'" HARMONY® GT for improved control of emerged lambsquarters, common milkweed, annual smartweeds and velvetleaf. Refer to the "F1ex.tar", "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® OF and the tankmix partners. When tankmixing, the most restrictive labeling applies. Weeds controlled by 0.25 oz per acre SVNCHRONV® STS® OF preceded by 4 • 5.3 oz per acre AUTHORITY®: Cocklebur Jimsonweed Kochia Lambsquarters Milkweed, Common (above ground portions only) Morningglory, Ivyleaf Nightshade, Eastern Black Pigweed species (including triazine resistant) Ragweed, Common Smartweeds, Annual Velvetleaf Watememp, Common and TaIl Wild sunflower SYNCHRONY® STS® OF at 0.25 oz per acre • Bumdown tankmlx with AUTHORITY® For improved burndown with AUTHORITY®, a tankmix of 0.25 ozlacre SYNCHRONY® STS® OF + AUTHORITY® + 1% vlv COC may be applied to bumdown broadleafweeds up to 3" in height and annual grasses up to I" in height. See the Pre-plant Burndown section of the AUTHORlTY® label for weeds burned down by AUTHORlTY®. Addition of 0.25 ozlacre SYNCHRONY® STS® OF will improve burndown of dandelion, marestail, prickly lettuce, giant ragweed, common ragweed, pennycn:ss, small·flowered bitlercress, shepherd's purse and tansy mustard. One pint of 2,4-0 L VE (0.5 Ibs a.e.lacre) may be tankmixed with AUTHORITY® + 0.25 ozlacre SYNCHRONY® STS® OF up to 7 days prior to planting. Precautions for 0.25 oz SYNCHRONY® STS® DF uses • A temporary crop response may occur following an application of SYNCHRONY® STS® OF to soybeans not designated "STS" in the variety name. • Applications rrude 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 .md,'or reduced weed control effectiveness. • Do not tankmi' "Poast Plus" with 0.25 ovacre OuPont™ SY~CHRO"y;l: STS® OF unless the soybean is designated as an "STS" variety. MIXING INSTRUCTIONS I. Fill the tank 14 to 1/3 full of water. 2. While agitating, add the required amount of SYNCHRONY® STS®OF. 3. Continue adequate agitation. 4. SYNCHROI\-Y® STS® DF should be thoroughly mixed with water In the spray tank before adding any otber matenaL As the tank is filling, add (in order): other herbicide(s}, the required spray adjuvant, and the nitrogen fertilizer where required. 5. Apply SYNCHRONY® STS® OF spray preparation within 24 hours of mixing to avoid product degradation. 6. If the mixture has settled, thoroughly reagitate before using. APPLICATION EQUIPMENT Ground Application (See Also Spray Drift Management) BroadcDSl App6clllion Postemergence in scybeans, use a minimwn of 10 gal water per acre. Under heavy weed pressure or dense crop foliage, increase minimwo spray volwoe to 15·25 gal per acre. Use flat fan nozzles at 25-60 psi for SYNCHRONY@ STS® OF applications. For bumdown applications of existing vegetation, flat fan nozzles and a minimum of20 gallons per acre are recommended sc as to thoroughly wet the foliage to be burned down. Do not use flood, rain drop, whirl chamber, or controlled droplet applicator (COA) type nozzles. Unacceptable crop injury, 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 Appliclllion Because band applicators spray a narrower area than broadcast applicators, use proportionately less spray sclution for band applications. Carefully calibrate the band applicator to not exceed the labeled rate. Flat fan nozzles are recommended. Carefully follow the nozzle manufacturer's instructions for nozzle orientation, distance of the nozzles from the crop and weeds, spray volwnes, calibration, and spray pressure for band applications. For additional information on row banders, see DuPont bulletin, "Application Accuracy· Row Banders." 6 '1/ .. 1-::, Aerial Application (See Also Spray Drift Management) ese nozzle types and arrangements that will provide optimum spray distribution and maximum coverage at 3·5 gal per acre . Use a minimum of 3 gal water per acre. Under heavy weed pressure or dense crop foliage, increase the minimum spray volwne 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® STS® OF 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® OF will provide complete control of susceptible weeds in 7·21 days. Suppressed plants may remain green but will be stunted and noncompetitive. 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 SYNCHRONY® STS® OF if rain is expected within I hour or weed control may decrease. ROTATIONAL CROP GUIDELINES Important: Crops other than soybeans following a DuPont™ SYNCHRONY® STS® DF application can vary in their sensitivity to low concentrations ofSThCHRONY® STS® OF remaining in the soil. Rotational crop guidelines must be followed. When SYNCHRONY® STS® is applied in sequence with DuPont™ CA,"IOPY®, DuPont™ CANOPY® SP or DuPont™ CA,"IOPY 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 and Hamburg-lda-Monona soil associations and fields located outside the historic flood plain of the Missouri River), Kansas, Kentucky, Maryland, Michigan (fields south of Interstate 96 or per supplemental labeling), Missouri (except the Boothecl), Nebraska (fields south of Route 30 and east of Route 281), New Jersey, Ohio, Pennsylvania and West Virginia. Region B: The states of Alabama (except the "Black Beh" where soil pH must be less than 7.0), Arlcansas, Florida, Georgia, l<>uisiana, Missouri (Boothecl region only), Mississippi (except the "Black Belf' where soil pH must be less than 7.0), North Carolina, Oklahoma, South Carolina, Tennessee, Texas (fields east of Route 183), and Virginia. Region C: The states of Minnesota, South Dakota, Wisconsin, Iowa (fields inside the boundaries of the C1arion-Nicollet­ Webster and Hamburg-Ida-Monona soil associations and fields located inside the historic floodplain of the Missouri River) and Nebraska (fields north of route 30 and west of Route 281). D!I not exceed 0,25 oz(acre; per season in region estates. FoUow Recrop Interval I If: • The field is located in a ''Region A" state (all pH soils) AND,EITHER A maximum of 1/2 wJaere ofSYNCHRONY® STS® DF was applied for the use season, OR A maximum of 1/2 wacre ofSYNCHRONY® STS® DF in sequence with 113 o71aere of DuPont'" CLASSIC® 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 AND A maximum of 1/2 wacre ofSYNCHRONY® STS® DF was applied in sequence with a maximum rate 00/4 ozlaere of CLASSIC®, or a maximum of two applications of SYNCHRONY® STS® DF at a rate of 1/2 ozlaere per application was applied. FoUow Reerop Interval 2 If: • The field is located in a "Region B" state (all pH soils except those with pH greater than 7.0 in Virginia and the Black Belt region of Alabama and Mississippi) AND A maximum of 1/2 wacre of SYNCHRONY® STS® DF was applied in sequence with 3/4 wacre ofCLASSIC®, or a maximum of two applications ofSYNCHRONY® STS® DF at a rate of 1/2 ozlaere per application was applied 7 Follow Reerop Interval 3 if: The field is located in a "Region A, B or C" siatc AND A maximum of 114 ovaere SYNCHRONY ~ STScE DF was applied during the use season. Rotational Interval (months) Following the Use of SYNCHRONY® STS® OF' Crop Intervall lotervall Interval3 Soybeans Anytime Anytime Anytime Cereal Grains, Pasture Grasses (such as Fescue and Ryegrass) Dry Beans, Kidney Beans P% Snap Beans J 9 J J 9 9 Field Com (lR) .. ___ . __ .. _8 _____ 7'-- __ 8 Fielg Com!"(Sllltcs in .. Il.~ A~.9...9 __ ___________ .2._ Field Com""(Sllltcs of AR, MO [Bootheel _on!l:J.ll~ TN, and ID.._.-. 8 Field Com""(Sllltcs of AL, FL, GA, LA, MS,and§g 7 Popcorn 9 9 9 Sorghum 9 9 9 Tobacco (tr.maplant) 9 9 9 Tomato (transplant) 9 9 9 Peanuts IS 6 6 Rice IS 9 9 Cottnn 9 8 9 Alfalfa 12 9 9 Clover 12 9 9 Cabbage 18 18 18 Canola (Rapeseed) 18 18 18 Cucumber 18 18 9 Flax 18 18 18 Lentils 18 18 18 Mustanl 18 18 18 Pumpkins 18 18 9 Sunflower 18 18 9 SwcctCom 18 18 9t Watermelon 18 18 9 Carrots 30 JO 30 Onions 30 30 30 PotdcCS (mcluding Sweet Potatoes) 30 30 30 Potatoes, irish 8tt Sugar Beets 30 30 30 Anr!!22 not listed JO JO 30 " IfSYNCHRONY® STS® OF or the lattcrpart ofa sequential treatment containing cbIorimuron ethyl (such as CLASSIC®) is applied after August I, extend rollltional crop intervals 2 months for alfalfa, clover, com (non-IR), cotton, popcorn, rice, sorghum, tobacco, and tomato. "*The tmn "Field Com" is defined to include only that com grown for groin or siJage or for seed com relative to the Rotational Crop Guidelines section of this label t Rotational crop intervals are for processing Sweet Com varieties only. The rotational crop interval for other Sweet Corn varieties is 18 months. ttSllltcs ofNC and VA in soils with organic matter great 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. 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 Invenions sections of this label. Controlling Droplet Size· General Techniques Volume - Use high flow rate nozzles to apply the highest practical spray volume. Nozzles with higher rated flows produce larger droplets. Pnssure - 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 INSTEAD 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 minimwn number of nozzles with the highest flow rate that provide uniform 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 .iroplets to evaporation and wind. For ground equipment, the boom should remain level with the crop and have minimal oounce. WIND Drift potential increases at wind speeds of less than 3 mph (due to inversion potential) or mOre than 10 mph. However, many factors, including droplet size and equipment type determine drift potential at any given wind speed. AVOID GUSTY OR WINDLESS CONDITIONS. ~ote: Local terrain can influence wind patterns. Every applicator should be familiar with local wind patterns and bow 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 vertical 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 form as the sun sets and often continue into the moming. Their 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 moves 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. 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 and not interfering with uniform deposition of the product. AIR ASSISTED (AIR BLASn FIELD CROP SPRAYERS Air assisted field crop sprayers carry droplets to the target via a downward directed air stream. Some may reduce the potential for drift, but if a sprayer is unsuitable for the application and/or 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 determine if use of an air assisted sprayer is recommended. 9 AIR ASSISTED (AIR BLASn 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 to the general drift management principles already described, the following specific practices will further reduce the potential for drift.: Adju.st 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 nol allow spray to go beyond the edge of the cultivated area. Spray the outside row only from outside the planting. IMPORTANT PRECAUTIONS """riot" ··:e~1i.ttl'(Or1iaiVes1l~J~ .~L~I:,y)~~~~,,~tf'-~~4i;;.i'i~4i~~ Injury to or loss of desirable trees or vegetation may result from failure to observe the following: Do not apply DuPontr .. SYNCHRONY® STS® OF or drain or flush equipment on or near desirable trees or other plants, on areas where their roots may extend, or in locations where the chemical may be washed or moved into contact with their roots. Do not use on lawns, walks, driveways, tennis courts or similar areas, Many crops are sensitive to SYNCHRONY® STS® DF. All direct or indirect contact (such as spray drift) with crops other than soybeans should be avoided. Thoroughly clean all application equipment immediately after use and prior to spraying crops other than soybeans. INFORMATION ON RESISTANT WEEDS When herbicides with the same mode of action are used repeatedly over several years to control the same weed species in the same field, naturaIIy-