crop-chem-docs/corpus/epa_ppls/100-1101.md

# FLEXSTAR

- EPA Reg No: **100-1101**
- Registrant: SYNGENTA CROP PROTECTION, LLC
- Signal word: Warning
- Active ingredients: Sodium salt of fomesafen (22.1%)
- Label accepted: 2018-12-17
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000100-01101-20181217.pdf

---
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 
 WASHINGTON, DC 20460 
 
 
 
Reg Review Label Acceptable v.20151230 
OFFICE OF CHEMICAL SAFETY 
AND POLLUTION PREVENTION 
December 17, 2018 
 
Odette Alexander- Watkins 
Senior Regulatory Product Manager 
Syngenta Crop Protection, LLC 
P.O. Box 18300 
Greensboro, NC 27419 
 
 
Subject: Registration Review La bel Mitigation for Fomesafen 
 Product Name: FLEXSTAR 
 EPA Registration Number: 100-1101 
 Application Date: 06/26/2018 
 Decision Number: 545930 
 
Dear Ms. Watkins: 
 
The Agency, in accordance with the Federal Insecticide, Fungicide and Rodenticide Act 
(FIFRA), as amended, has completed reviewing all of the information submitted with your 
application to support the Registration Review of the above referenced product in connection 
with the Fomesafen Interim Decision, and has concluded that your submission is acceptable. The 
label referred to above, submitted in connection with registration under FIFRA, as amended, is 
acceptable. 
 
Should you wish to add/retain a reference to the company’s website on your label, then please be 
aware that the website becomes labeling under the Federal Insecticide Fungicide and Rodenticide 
Act and is subject to review by the Agency. If the website is false or misleading, the product 
would be misbranded and unlawful to sell or distribute under FIFRA section 12(a)(1)(E). 40 
CFR 156.10(a)(5) list examples of statements EPA may consider false or misleading. In addition, 
regardless of whether a website is referenced on your product’s label, claims made on the 
website may not substantially differ from those claims approved through the registration process. 
Therefore, should the Agency find or if it is brought to our attention that a website contains false 
or misleading statements or claims substantially differing from the EPA approved registration, 
the website will be referred to the EPA’s Office of Enforcement and Compliance. 
 
A copy of your label stamped “Accepted” is enclosed. Products shipped after 12 months from the 
date of this amendment must bear the new revised label. Your release for shipment of the 
product bearing the amended label constitutes acceptance of these conditions. If these conditions 
are not complied with, the registration will be subject to cancellation in accordance with FIFRA 
section 6. 
 
If you have any questions about this letter, please contact Erik Kraft by phone at 703-308-9358, 
or via email at Kraft.Erik@epa.gov.

Page 2 of 2 
EPA Reg. No. 100-1101 
Decision No. 545930 
 
 
 
 
 
 
 
 
Enclosure 
 
Sincerely, 
 
 
Erik Kraft, Product Manager 24 
Fungicide and Herbicide Branch 
Registration Division (7505P) 
Office of Pesticide Programs

[Master Label] 
FOMESAFEN GROUP 14 HERBICIDE 
Flexstar® 
Herbicide 
For Control of Weeds in Soybeans 
Active Ingredient: 
Sodium salt of fomesafen 
5-[2-chloro-4-(trifluoromethyl)phenoxy]-N-(methylsulfonyl)-2-nitrobenzamide ........ 22.1%* 
Other Ingredients: 77.9% 
Total: 100.0% 
Flexstar is formulated as a soluble liquid. 
*Flexstar is equivalent to 21.0% fomesafen or 1.88 lb fomesafen active ingredient per 
gal. 
 
 
KEEP OUT OF REACH OF CHILDREN. 
 
WARNING/AVISO 
Si usted no entiende la etiqueta, busque a alguien para que se la explique a usted en 
detalle. (If you do not understand the label, find someone to explain it to you in detail.) 
See additional precautionary statements and directions for use in attached booklet. [2.5 
gallon] 
See additional precautionary statements and directions for use in Flexstar booklet. 
[Bulk] 
EPA Reg. No. 100-1101 
EPA Est. 
2.5 gallons 
Net Contents 
____ gallons (Bulk) 
Net Contents 
12/17/2018
100-1101

Flexstar 
Page 2 
 
FIRST AID 
If in eyes x 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. 
x Call a Poison Control Center or doctor for treatment advice. 
If swallowed x Call a Poison Control Center or doctor immediately for treatment 
advice. 
x Have person sip a glass of water if able to swallow. 
x Do not induce vomiting unless told to by a Poison Control Center 
or doctor. 
x Do not give anything by mouth to an unconscious person. 
If on skin or 
clothing 
x Take off contaminated clothing. 
x Rinse skin immediately with plenty of water for 15-20 minutes. 
x Call a Poison Control Center or doctor for treatment advice. 
If inhaled x Move person to fresh air. 
x If person is not breathing, call 911 or an ambulance, then give 
artificial respiration, preferably mouth-to-mouth, if possible. 
x Call a Poison Control Center or doctor for further treatment 
advice. 
NOTE TO PHYSICIAN 
Probable mucosal damage may contraindicate the use of gastric lavage. 
Have the product container or label with you when calling a Poison Control Center or 
doctor or going for treatment. 
HOT LINE NUMBER 
For 24-Hour Medical Emergency Assistance (Human or Animal) 
or Chemical Emergency Assistance (Spill, Leak, Fire, or Accident), 
Call 
1-800-888-8372 
 
 
PRECAUTIONARY STATEMENTS 
 
HAZARDS TO HUMANS AND DOMESTIC ANIMALS 
 
WARNING/AVISO 
 
CAUSES EYE AND SKIN IRRITATION. HARMFUL IF SWALLOWED, INHALED OR 
ABSORBED THROUGH SKIN. Do not get on skin or on clothing. Avoid breathing 
vapor or spray mist. Avoid contact with eyes. Prolonged or frequently repeated skin 
contact may cause allergic reactions in some individuals. Wash thoroughly with soap 
and water after handling and before eating, drinking, chewing gum, using tobacco or 
using the toilet. Remove and wash contaminated clothing before reuse.

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Page 3 
Personal Protective Equipment (PPE) 
 
Applicators and other handlers must wear: 
 
x Coveralls over short-sleeved shirt and short pants 
x Chemical-resistant gloves: barrier laminate, nitrile rubber t 14 mils, neoprene rubber 
t 14 mils, or Viton® t 14 mils 
x Chemical-resistant footwear plus socks 
x Chemical-resistant apron when cleaning equipment, mixing or loading 
 
User Safety Requirements 
 
Follow the manufacturer’s instructions for cleaning/maintaining PPE. If no such 
instructions for washables exist, use detergent and hot water. Keep and wash PPE 
separately from other laundry. 
 
User Safety Recommendations 
Users should: 
x Wash hands before eating, drinking, chewing gum, using tobacco or using the toilet. 
x Remove clothing/PPE immediately if pesticide gets inside. Then wash thoroughly 
and put on clean clothing. 
x 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. 
 
Environmental Hazards 
 
For Terrestrial Uses: 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 
water when disposing of equipment washwater or rinsate. Do not apply when weather 
conditions favor drift from target area. 
 
Drift and runoff may be hazardous to aquatic organisms in water adjacent to treated 
areas. 
 
Non-target Organism Advisory 
 
This product is toxic to plants and may adversely impact the forage and habitat of non-
target organisms, including pollinators, in areas adjacent to the treated site. Protect the 
forage and habitat of non-target organisms by following label directions intended to 
minimize spray drift.

Flexstar 
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Groundwater Advisory 
 
Fomesafen is known to leach through soil into groundwater under certain conditions as 
a result of label use. This chemical may leach into groundwater if used in areas where 
soils are permeable, particularly where the water table is shallow. 
 
Surface Water Advisory 
 
This product may impact surface water quality due to spray drift and runoff of rain water. 
This is especially true for poorly draining soils and soils with shallow ground water. This 
product is classified as having high potential for reaching surface water via runoff for 
several months after application. A level, well-maintained vegetative buffer strip 
between areas to which this product is applied and surface water features such as 
ponds, streams, and springs will reduce the potential loading of fomesafen from runoff 
water and sediment. Runoff of this product will be reduced by avoiding applications 
when rainfall is forecasted to occur within 48 hours. See the manual for “Conservation 
Buffers to Reduce Pesticide Losses” at the following internet address: 
http://www.wsi.nrcs.usda.gov/products/W2Q/pest/core4.html. 
 
 
MANDATORY SPRAY DRIFT 
Aerial Applications: 
 
x Do not release spray at a height greater than 10 ft above the vegetative canopy, 
unless a greater application height is necessary for pilot safety. 
x For applications prior to the emergence of crops and target weeds, applicators are 
required to use a Coarse or coarser droplet size (ASABE S572.1). 
x For all other applications, applicators are required to use a Medium or coarser 
droplet size (ASABE S572.1). 
x For aerial applications: Do not apply when wind speeds exceed 15 mph at the 
application site. If the wind speed is greater than 10 mph, the boom length must be 
65% or less of the wingspan for fixed wing aircraft and 75% or less of the rotor blade 
diameter for helicopters. Otherwise, the boom length must be 75% or less of the 
wingspan for fixed wing aircraft and 90% or less of the rotor blade diameter for 
helicopters. Applicators must use ½ swath displacement upwind at the downwind 
edge of the field. 
x Nozzles must be oriented so the spray is directed toward the back of the aircraft. 
x Do not apply when wind speeds exceed 15 miles per hour at the application site. 
x Do not apply during temperature inversions.

Flexstar 
Page 5 
 
MANDATORY SPRAY DRIFT 
Ground Boom Applications: 
 
x User must only apply with the nozzle height recommended by the manufacturer, but 
no more than 3 feet above the ground or crop canopy unless making a turf, pasture, 
or rangeland application, in which case applicators may apply with a nozzle height 
no more than 4 feet above the ground. 
x For applications prior to the emergence of crops and target weeds, applicators are 
required to use a Coarse or coarser droplet size (ASABE S572.1). 
x For all other applications, applicators are required to use a Medium or coarser 
droplet size (ASABE S572.1). 
x Do not apply when wind speeds exceed 15 miles per hour at the application site. 
x Do not apply during temperature inversions. 
 
 
SPRAY DRIFT ADVISORIES 
 
THE APPLICATOR IS RESPONSIBLE FOR AVOIDING OFF-SITE SPRAY DRIFT. 
BE AWARE OF NEARBY NON-TARGET SITES AND ENVIRONMENTAL 
CONDITIONS. 
 
IMPORTANCE OF DROPLET SIZE 
An effective way to reduce spray drift is to apply large droplets. Use the largest droplets 
that provide target pest control. While applying larger droplets will reduce spray drift, the 
potential for drift will be greater if applications are made improperly or under unfavorable 
environmental conditions. 
 
Controlling Droplet Size – Ground Boom 
x Volume - Increasing the spray volume so that larger droplets are produced will 
reduce spray drift. Use the highest practical spray volume for the application. If a 
greater spray volume is needed, consider using a nozzle with a higher flow rate. 
x Pressure - Use the lowest spray pressure recommended for the nozzle to 
produce the target spray volume and droplet size. 
x Spray Nozzle - Use a spray nozzle that is designed for the intended application. 
Consider using nozzles designed to reduce drift. 
 
Controlling Droplet Size – Aircraft 
x Adjust Nozzles - Follow nozzle manufacturers recommendations for setting up 
nozzles. Generally, to reduce fine droplets, nozzles should be oriented parallel 
with the airflow in flight. 
 
BOOM HEIGHT – Ground Boom 
Use the lowest boom height that is compatible with the spray nozzles that will provide 
uniform coverage. For ground equipment, the boom should remain level with the crop 
and have minimal bounce.

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RELEASE HEIGHT - Aircraft 
Higher release heights increase the potential for spray drift. 
 
SHIELDED SPRAYERS 
Shielding the boom or individual nozzles can reduce spray drift. Consider using 
shielded sprayers. Verify that the shields are not interfering with the uniform deposition 
of the spray on the target area. 
 
TEMPERATURE AND HUMIDITY 
When making applications in hot and dry conditions, use larger droplets to reduce 
effects of evaporation. 
 
TEMPERATURE INVERSIONS 
Drift potential is high during a temperature inversion. Temperature inversions are 
characterized by increasing temperature with altitude and are common on nights with 
limited cloud cover and light to no wind. The presence of an inversion can be indicated 
by ground fog or 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. Avoid applications during temperature 
inversions. 
 
WIND 
Drift potential generally increases with wind speed. AVOID APPLICATIONS DURING 
GUSTY WIND CONDITIONS. 
 
Applicators need to be familiar with local wind patterns and terrain that could affect 
spray drift.

Flexstar 
Page 7 
 
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 application. 
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 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. 
 
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: 
 
x Coveralls over short-sleeved shirt and short pants 
x Chemical-resistant gloves: barrier laminate, nitrile rubber t 14 mils, neoprene rubber 
t 14 mils, or Viton® t 14 mils 
x Chemical-resistant footwear plus socks 
 
 
 
PRODUCT INFORMATION 
 
Read all label directions before using. 
 
Flexstar is a selective herbicide which may be applied preplant, preemergence and/or 
postemergence for control or suppression of broadleaf weeds, grasses and sedges in 
soybeans.

Flexstar 
Page 8 
 
Flexstar is most effective and consistent when used postemergence, working through 
contact action. Therefore, emerged weeds must have thorough spray coverage for 
effective control. Some bronzing, crinkling or spotting of soybean leaves may occur 
following a postemergence application, but soybeans soon outgrow these effects and 
develop normally. 
 
Optimum weed control is achieved by postemergence applications of Flexstar to young 
actively growing broadleaf weeds that are not under stress from moisture, temperature, 
low soil fertility, mechanical or chemical injury. 
 
Certain germinating broadleaf weeds, grasses and sedges may be controlled or 
suppressed by soil residual activity from either preplant, preemergence and/or 
postemergence applications if rainfall occurs shortly after application. The extent and 
consistency of soil activity is dependent upon soil characteristics, ground cover, amount 
of rainfall following application and the rate of Flexstar used. 
 
 
 
RESISTANT WEED MANAGEMENT 
 
FOMESAFEN GROUP 
14 HERBICIDE 
 
Flexstar contains the active ingredient fomesafen which inhibits the enzyme, 
protoporphyrinogen oxidase (PPO or PROTOX, Site of Action Group 14). Some 
naturally occurring weed populations have been identified as resistant to Group 14 
herbicides. Selection of resistant biotypes, through repeated use of these herbicides or 
lower than specified use rates in the same field, may result in weed control failures. A 
resistant biotype may be present where poor performance cannot be attributed to 
adverse environmental conditions or improper application methods. Contact your local 
Syngenta representative, retailer, crop advisor or extension agent to determine if weeds 
resistant to this mode of action are present in your area. If resistant biotypes have been 
reported, use the full labeled rate of this product, apply at the labeled timing, and tank-
mix with a different mode of action product so there are multiple effective modes of 
application for each suspected resistant weed. 
 
Principles of Herbicide Resistant Weed Management 
Scout and know your field 
• Know weed species present in the field to be treated through scouting and field 
history. An understanding of weed biology is useful in designing a resistance 
management strategy. Ensure the weed management program will control all 
weeds present.

Flexstar 
Page 9 
• Fields should be scouted prior to application to determine species present and 
growth stage. Always apply this herbicide at the full labeled rate and correct 
timing for the weeds present in the field. 
Utilize non-herbicidal practices to add diversity 
• Use diversified management tactics including cover crops, mechanical weed 
control, harvest weed seed control, and crop rotation as appropriate. 
Use good agronomic practices, start clean and stay clean 
• Use good agronomic practices that enhance crop competitiveness. 
• Plant into weed-free fields utilizing tillage or an effective burndown herbicide for 
control of emerged weeds. 
• Sanitize farm equipment to avoid spreading seed or vegetative propagules prior 
to leaving fields. 
Difficult to control weeds 
• Fields with difficult to control weeds should be planted in rotation with crops that 
allow the use of herbicides with an alternative mode of action or different 
management practices. 
• Difficult to control weeds may require sequential applications, including a broad 
spectrum preemergence herbicide followed by one or more postemergence 
herbicide applications. Utilize herbicides containing different modes of action 
effective on the target weeds in sequential applications. 
Do not overuse the technology 
• Do not use more than two applications of this or any other herbicide with the 
same mode of action in a single growing season unless mixed with an herbicide 
with a different mode of action which provides overlapping spectrum for the 
difficult to control weeds. 
Scout and inspect fields following application 
• Prevent an influx of weeds into the field by controlling weeds in field borders. 
• Scout fields after application to verify that the treatment was effective. 
 
• Suspected- herbicide resistant weeds may be identified by these indicators 
• Failure to control a weed species normally controlled by the herbicide at 
the dose applied, especially if control is achieved on adjacent weeds; 
• A spreading patch of non-controlled plants of a particular weed species; 
and 
• Surviving plants mixed with controlled individuals of the same species. 
• Report non-performance of this product to your Syngenta retailer, Syngenta 
representative, or call 1-866-Syngent (
866-796-4368). If resistance is suspected

Flexstar 
Page 10 
ensure weed escapes are controlled using an herbicide with an effective mode of 
action and/or use non-chemical means to prevent further seed production. 
 
Prevent weed escapes before, during, and after harvest 
• Do not allow weed escapes to produce seed or vegetative structures including 
tubers or stolons which contribute to spread and survival. Consider harvest 
weed seed management and control weeds post-harvest to prevent seed 
production. 
 
APPLICATION DIRECTIONS 
 
Application Timing 
 
Best broad spectrum postemergence control of susceptible broadleaf weeds is obtained 
when Flexstar is applied early to actively growing weeds. This usually occurs 14 to 28 
days after planting. Refer to the weed control tables for specific directions on weed 
growth stages and rates. 
 
Spray Additives 
 
Only spray additives cleared for use on growing crops under 40 CFR 180.1001 may be 
used in the spray mixture. 
 
For best broad spectrum postemergence control of susceptible broadleaf weeds in 
Regions 2, 3, 4 and 5 (see Regional Use Maps), Flexstar needs to be used with 1.0-
2.5% v/v liquid nitrogen (28-32%) or a minimum of 8.5 lb ammonium sulfate per 100 
gallons of spray volume. 
 
For postemergence applications always add one of the following, except in tank 
mix with products prohibiting spray additives 
 
Crop Oil Concentrate (COC) or Methylated Seed Oil (MSO): Use a nonphytotoxic 
COC or MSO containing 15-20% approved emulsifier at 0.5-1% v/v (2-4 qt/100 gal) of 
finished spray volume. COC or MSO can improve weed control but may slightly reduce 
crop safety. 
 
Nonionic Surfactant (NIS): Use NIS containing at least 80% active ingredient at 0.25-
0.5% v/v (1-2 qt/100 gal) of finished spray volume. 
 
Other Adjuvants: Adjuvants other than COC or NIS may be used providing the 
product meets the following criteria: 
 
1. Contains only EPA exempt ingredients 
 
2. Is nonphytotoxic to the target crop

Flexstar 
Page 11 
 
3. Is compatible in mixture (May be established through a jar test.) 
 
4. Is supported locally for use with Flexstar on the target crop through proven field 
trials. 
 
Note: No adjuvants are needed for preplant or preemergence applications, unless 
Flexstar is being used in a burndown. 
 
When an adjuvant is to be used with this product, the use of an adjuvant that meets the 
standards of the Council of Producers & Distributors of Agrotechnology (CPDA) 
adjuvant certification program is advised. 
 
Refer to Flexstar Regional Use Map for the maximum rate of Flexstar (or other 
fomesafen containing products) that may be applied in each geographic region. 
 
Directions for Tank Mixing Order: 
 
1. Fill spray tank with half the required amount of water and begin agitation.* 
 
2. Add fertilizer (UAN, AMS). 
 
3. Add dry pesticide formulations. 
 
4. Add Flexstar. 
 
5. Add liquid pesticide formulation. 
 
6. Add adjuvant (MSO, COC or NIS). 
 
7. Add remainder of water and then maintain constant agitation. 
 
*Compatibility agent, 1 gal/500 gal of water or 0.2% v/v, may be added as needed. 
 
Tank-Mix Compatibility Test 
 
A jar test is advised prior to tank mixing to ensure compatibility of Flexstar with mixture 
partners. 
 
x Conduct a jar test using a 1 pt to 1 qt container with lid by adding water or other 
intended carrier including a liquid fertilizer to the jar. 
x Next, add the appropriate amount of pesticide(s) or tank-mix partner(s) in their 
relative proportions based on label rates. Add tank-mix components separately in 
the order described in the tank-mixing section. After each addition, shake or stir 
gently to thoroughly mix.

Flexstar 
Page 12 
x After all ingredients have been added, put the lid on the jar, tighten and invert the jar 
10 times to mix. 
x After mixing, let the mixture stand 15 – 30 minutes and then examine for signs of 
incompatibility including obvious separation, large flakes, precipitates, gels or heavy 
oily film on the jar. 
x If the mixture remains mixed or can be remixed readily, it is physically compatible 
and can be used. 
x If the mixture is incompatible, repeat the test using a compatibility agent at the label 
rate. Or, if applicable, slurry dry formulations in water before adding to the jar. If 
incompatibility is still observed after following these procedures, do not use the 
mixture. 
x After compatibility testing is complete, dispose of any pesticide wastes in 
accordance with the storage and disposal section of this label. 
 
TANK MIX PARTNERS FOR FLEXSTAR 
 
BRAND/ 
EPA REG. NO. 
ACTIVE 
INGREDIENT(S) 
BRAND/ 
EPA REG. NO. 
ACTIVE 
INGREDIENT(S) 
Assure II®/3862-191 
 
Dimethyl Benzyl 
Ammonium Chloride 
Gramoxone®/10
0-1431 
Paraquat dichloride 
Basagran®/ 
66330-413 
Sodium bentazon Harmony®/279-
9583 
Trifensulfuron-
methyl; tribenuron-
methyl 
Butyrac®/ 
42750-38 
Dichlorophenoxy 
butyric acid 
Liberty® SL 
Herbicide/264-
660 
Glufosinate-
ammonium 
Classic®/352436 
 
Chlorimuron-ethyl Poast®/7969-58 Sethoxydim 
FirstRate®/62719-
275 
cloransulam-methyl Poast 
Plus®/7969-88 
Sethoxydim 
Fusilade DX/100-
1070 
Fluazifop-P-butyl Pursuit®/241-
310 
Ammonium salt of 
imazethapyr 
Fusion/100-1059 
 
Fluazifop-P-butyl; 
fenoxaprop-P-ethyl 
Raptor®/241-379 Ammonium salt of 
imazamox 
Roundup® brands 
 
Glyphosate Resource®/5963
9-82 
Flumiclorac pentyl 
ester 
GlyphomaxTM/62719-
323 
Glyphosate Scepter®/5481-
597 
Imazaquin 
 Select®/59639-
78 
Clethodim

Flexstar 
Page 13 
 
APPLICATION INSTRUCTIONS 
 
Ground Application 
 
Use sufficient spray volume and pressure to ensure complete coverage of the target. A 
minimum spray volume of 15 gal/A is specified. On large weeds and/or dense foliage 
use a minimum of 20 gal/A, to ensure thorough coverage of weed foliage. 
The use of standard flat fan nozzles will result in the most effective postemergence 
application of Flexstar. Use nozzles that are set up to deliver a medium quality spray, 
according to the ASABE S-572.1 standard. 
 
For tank-mixes containing Flexstar and either dicamba or 2,4-D, nozzles that are set up 
to deliver coarse, very coarse, extremely coarse or ultra-coarse sprays may be used. 
The required spray quality needs to be determined by reference to the instructions given 
on the label of the dicamba- or 2,4-D-containing tank-mix partner, for these tank-mixes. 
For all other tank-mixes containing Flexstar applied postemergence, use nozzles that 
deliver a medium quality spray. 
 
Band Applications 
 
Thorough weed coverage is important for postemergence control. Best coverage is 
obtained with a minimum of two nozzles, one directed to each side of the planted row. 
Application with a single nozzle directed over the top of the row is not advised for 
postemergence applications but is suitable for preemergence applications. Cultivation 
of untreated areas may be needed following band applications. When making 
postemergence band applications and cultivating in the same operation, position 
nozzles in advance of the cultivation device. This will reduce dust in the spray area. 
Dust can intercept spray, reducing weed coverage, resulting in less than adequate 
weed control. 
 
Calculate the amount of herbicide and water volume needed for postemergence band 
treatment by the following formulas: 
 
Band width in inches 
X Broadcast rate per acre = Band herbicide rate per acreRow width in inches 
 
Band width in inches 
X Broadcast volume per acre = Band herbicide rate per acre Row width in inches 
 
Aerial Application 
 
Use sufficient spray volume and pressure to ensure complete coverage of the target. A 
minimum of 5 gal/A of spray mixture needs to be applied with a maximum of 40 PSI 
pressure. When broadleaf weed foliage is dense, use a minimum of 10 gal/A to ensure 
coverage of weed foliage.

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Page 14 
 
Cultivation 
 
Cultivation prior to application is not advised. Cultivation may put weeds under stress, 
reducing weed control. Timely cultivation 1-3 weeks after applying Flexstar may assist 
weed control. 
 
 
Rainfastness 
 
Flexstar requires a 1-hour rain-free period for best results when applied postemergence. 
 
 
RESTRICTIONS 
 
x DO NOT APPLY THIS PRODUCT THROUGH ANY TYPE OF IRRIGATION 
SYSTEM. 
 
x A maximum of 1.6 pt of Flexstar (or a maximum of 0.375 lb ai/A of fomesafen 
from any product containing fomesafen) may be applied per acre per year in 
Region 1 (see Regional Use Map). 
 
x A maximum of 1.6 pt of Flexstar (or a maximum of 0.375 lb ai/A of fomesafen 
from any product containing fomesafen) may be applied per acre in alternate 
years in Region 2 (see Regional Use Map). 
 
x A maximum of 1.3 pt of Flexstar (or a maximum of 0.313 lb ai/A of fomesafen 
from any product containing fomesafen) may be applied per acre in alternate 
years in Region 3 (see Regional Use Map). 
 
x A maximum of 1 pt of Flexstar (or a maximum of 0.25 lb ai/A of fomesafen from 
any product containing fomesafen) may be applied per acre in alternate years in 
Region 4 (see Regional Use Map). 
 
x A maximum of 1 pt of Flexstar (or a maximum of 0.25 lb ai/A of fomesafen from 
any product containing fomesafen) may be applied per acre in alternate years in 
Region 4a (see Regional Use Map). Apply only to soybeans in Region 4a. Do not 
make a Flexstar application later than June 20th. Cumulative rainfall plus overhead 
irrigation must total 15 inches from the period of Flexstar application to soybean crop 
maturity to allow planting of rotational crops listed in this label (refer to Rotational 
Crop Restrictions section). If the soybean crop is lost or the required cumulative 
rainfall plus irrigation is not received as outlined above, plant only soybeans the 
following growing season.

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Page 15 
x A maximum of 0.75 pt of Flexstar (or a maximum of 0.1875 lb ai/A of fomesafen 
from any product containing fomesafen) may be applied per acre in alternate 
years in Region 5 (see Regional Use Map). 
 
x Do not apply more than the maximum rates and number of applications of Flexstar 
to soybeans in each geographic region (refer to the Flexstar Regional Use Map) 
specified in the following table. 
 
x Do not apply a second application of a fomesafen-containing product, as crop injury 
or illegal residues may occur in harvested crops. 
 
x Do not graze treated areas or harvest for forage or hay. 
 
Product Use Restrictions – Soybeans 
 
Flexstar Use Restrictions for Soybeans 
 
 
 
Region 
 
Maximum Single 
Application Flexstar 
Rate (pt/A) 
Maximum Single 
Application 
Flexstar Rate 
(lb fomesafen/A) 
 
Maximum 
Number 
Applications 
 
 
PHI 
(days) 
1 1.6 0.375 1 per year 45 
2 1.6 0.375 1 every other 
year 
45 
3 1.3 0.313 1 every other 
year 
45 
4 1 0.25 1 every other 
year 
45 
4a 1 0.25 1 every other 
year 
45 
5 0.75 0.1875 1 every other 
year 
45 
x In Region 4a, do not make a Flexstar application later than June 20th. Cumulative 
rainfall plus overhead irrigation must total 15 inches from the period of Flexstar 
application to soybean crop maturity to allow planting of rotational crops listed in 
this label (refer to Rotational Crop Restrictions section). If the soybean crop is lost 
or the required cumulative rainfall plus irrigation is not received as outlined above, 
plant only soybeans the following growing season. 
 
Do not graze treated areas or harvest for forage or hay.

Flexstar 
Page 16 
ROTATIONAL CROP RESTRICTIONS 
The following rotational crops may be planted after applying Flexstar at directed 
rates: 
Rotational Crops 
Planting Time From Last 
Flexstar Application 
Bean, Dry 
Bean, Snap 
Cotton 
Potato 
Soybean 
Soybean, Succulent (edamame) 
0 months 
Bean, Lima 
Pea, Succulent 
Peanut 
Small Grains including Wheat, Barley, Rye 
4 months 
Corn, Field 
Corn, Seed 
Corn, Sweet
5 
Pepper (transplanted)1 
Popcorn4 
Pumpkin2 
Rice 
Tomato (transplanted)
1 
Watermelon2 
10 months 
Bean, Succulent (other than edamame, snap bean and 
 lima bean) 
Cantaloupe
2 
Cucumber2 
Edible-podded beans and peas not otherwise specified 
 in this table 
Eggplant 
Pea, Dry 
Pepper, (direct-seeded) 
Squash
2 
Sweet Potato 
Tomato (direct-seeded) 
12 months 
Sorghum3 18 months 
All other crops not listed above 18 months 
1 4 months in Region 1 
2 8 months in Region 1 
3 10 months in Region 1 
4 12 months in the states of Ohio, Kentucky, Illinois, Indiana, Iowa, and Regions 4 and 
 4a when applied at rates of 1 pint per acre or more 
5 18 months in the states of Connecticut, Maine, Massachusetts, New Hampshire, New 
 York, Rhode Island, Vermont and Region 5 
Restriction: Do not graze rotated small grain crops for harvest forage or straw for 
livestock.

Flexstar 
Page 17 
PRECAUTIONS 
 
x Thoroughly clean the spray system with water and a commercial tank cleaner before 
and after each use. 
 
x Tank mixes of Flexstar with other pesticides, fertilizers or any other additives except 
as specified on this label or other approved Syngenta supplemental labels may 
result in tank mix incompatibility, unsatisfactory performance and/or unsatisfactory 
crop injury. 
 
x Apply postemergence to actively growing weeds. Avoid applying Flexstar to weeds 
or soybeans which are under stress from moisture, temperature, low soil fertility, 
mechanical or chemical injury, as reduced weed control and/or increased crop injury 
may result. 
 
x Avoid overlapping spray swaths, as injury may occur to rotational crops. 
 
x Optimum spray coverage will occur when the ground speed does not exceed 10 
mph during application. 
 
Replanting 
 
If replanting is necessary in fields previously treated with Flexstar, the field may be 
replanted to cotton, dry beans, potatoes, snap beans or soybeans. If tank-mix 
combinations were used, refer to product labels for any additional replanting 
instructions. 
 
Cover Crops 
A cover crop can be an important tool for the overall farm cropping system. Cover 
crops are planted for conservation purposes, soil erosion control, soil health 
improvement, water quality improvement and weed management. A cover crop can be 
a single crop or a combination of crops, including grasses and/or broadleaf crops. 
After harvest of a Flexstar treated crop, planting of a cover crop is allowed provided the 
cover crop is not grazed or fed to livestock nor harvested for food. Terminate the cover 
crop through natural causes including frost or intentional termination by herbicide 
application, crimping, rolling, tillage or cutting. All possible cover crops or cover crop 
combinations have not been tested for sensitivity to this product. Before planting the 
cover crop, determine the level of sensitivity for the intended cover crops by conducting 
a field bioassay. Refer to the Field Bioassay for Cover Crops section for instructions 
on how to conduct a field bioassay. 
 
Field Bioassay for Cover Crops 
 
A field bioassay is a method of determining if herbicide residues are present in the soil 
at concentrations high enough to adversely affect crop growth. Conduct the field 
bioassay by planting several strips of the desired cover crop across the field which has

Flexstar 
Page 18 
been previously treated with Flexstar. Plant the cover crop strips perpendicular to the 
direction of the product application. Locate the strips so that all the different field 
conditions are encountered, including differences in field terrain, soil texture, organic 
matter, pH, and drainage. If the cover crop does not show adverse effects including 
crop injury and/or stand reduction, the field can be planted to this cover crop. If injury 
and/or stand reduction are visible, wait two to four weeks for further herbicide 
degradation to occur and repeat the bioassay. Alternatively, select a different cover 
crop and repeat the bioassay. Only plant cover crops that show acceptable crop safety 
in the field bioassay.

Flexstar 
Page 19 
 
FLEXSTAR - USE RATES AND WEEDS CONTROLLED 
 
REFER TO MAP FOR DEFINITION OF SPECIFIED 
GEOGRAPHIC REGIONS 
 
FLEXSTAR REGIONAL USE MAP 
 
 
 
 
 
 
Refer to crop specific application directions in this label for specific application 
information in each region including the maximum yearly application rate, maximum 
number of applications, pre-harvest and retreatment interval.

Flexstar 
Page 20 
 
REGION 1 
(Maximum Rate 1.6 pt/A (0.375 lb ai/A) per year) 
 
 
 
 
 
Includes the following states or portion of states where Flexstar may be applied: 
 
 
 
 
 
 
Region 1 
Alabama All areas. 
Arkansas All areas. 
Florida All areas except for Miami-Dade County. 
Georgia All areas. 
Louisiana All areas. 
Mississippi All areas. 
Missouri Counties of Bollinger, Butler, Cape Giradeau, Dunklin, Madison, 
Mississippi, New Madrid, Pemiscot, Perry, Ripley, Scott, Stoddard and 
Wayne. 
North Carolina All areas. 
Oklahoma All areas East of U.S. Highway 75 and East of Indian Nation Parkway. 
South Carolina All areas. 
Tennessee All areas. 
Texas All areas East of U.S. Highway 77 to State Road 239, including all of 
Calhoun County. 
Refer to crop specific application directions in this label for specific application information in each region 
including the maximum yearly application rate, maximum number of applications, pre-harvest interval and 
retreatment interval.

Flexstar 
Page 21 
 
REGION 2 
(Maximum Rate 1.6 pt/A (0.375 lb ai/A), alternate years) 
 
 
 
 
 
 
Includes the following states or portion of states where Flexstar may be applied: 
 
 
 
 
Region 2 
Delaware All areas. 
Illinois All areas South of Interstate 70. 
Indiana All areas South of Interstate 70. 
Kentucky All areas. 
Maryland All areas. 
Ohio All areas South of Interstate 70. 
Pennsylvania All areas South of Interstate 80 to the intersection of U.S. Highway 15 and 
East of U.S. Highway 15 and U.S. Highway 522. 
Virginia All areas. 
West Virginia All areas. 
Refer to crop specific application directions in this label for specific application information in each region 
including the maximum yearly application rate, maximum number of applications, pre-harvest interval and 
retreatment interval.

Flexstar 
Page 22 
REGION 3 
(Maximum Rate 1.3 pt/A (0.313 lb ai/A), alternate years) 
 
 
 
 
 
 
Includes the following states or portion of states where Flexstar may be applied: 
 
 
 
 
 
 
 
Region 3 
Connecticut All areas. 
Illinois All areas North of Interstate 70. 
Indiana All areas North of Interstate 70. 
Iowa All areas. 
Maine All areas. 
Massachusetts All areas. 
Missouri All counties except for those listed in Region 1. 
Ohio All areas North of Interstate 70. 
New 
Hampshire 
All areas. 
New Jersey All areas. 
New York All areas. 
Pennsylvania All areas except those listed in Region 2. 
Rhode Island All areas. 
Vermont All areas. 
Wisconsin All areas South of U.S. Highway 18 between Prairie Du Chien and 
Madison, and South of Interstate 94 between Madison and Milwaukee. 
Refer to crop specific application directions in this label for specific application information in each region 
including the maximum yearly application rate, maximum number of applications, pre-harvest interval and 
retreatment interval.

Flexstar 
Page 23 
REGION 4 
 (Maximum Rate 1 pt/A (0.25 lb ai/A), alternate years) 
 
 
 
 
 
 
 
Includes the following states or portion of states where Flexstar may be applied: 
 
 
 
 
 
 
 
Region 4 
Kansas All counties east of or intersected by U.S. Highway 281. 
Michigan Southern Peninsula. 
Minnesota All areas south of Interstate 94. 
Nebraska All counties east of or intersected by U.S. Highway 281. 
North Dakota All areas east of Interstate 29 from Fargo south to the South Dakota state 
line. 
South Dakota All areas east of Interstate 29 from the North Dakota state line to 
Watertown, all areas east of Highway 81 from Watertown to Madison and 
all areas east and south of State Road 34 and U.S. Highway 281 to the 
Nebraska state line. 
Wisconsin All areas south of Interstate 94 (except those in Region 3) from Minnesota 
state line to Eau Claire and south of U.S. Highway 29 from Eau Claire to 
Green Bay plus Barron, Burnett, Chippewa, Clark, Door, Dunn, Eau Claire, 
Langlade, Lincoln, Kewaunee, Marathon, Marinette, Menominee, Oconto, 
Polk, Price, Rusk, Sawyer, Shawano, St. Croix, Taylor, and Washburn 
counties. The following counties are excluded: Adams, Marquette, 
Portage, Waupaca, Waushara and Wood. 
Refer to crop specific application directions in this label for specific application information in each region 
including the maximum yearly application rate, maximum number of applications, pre-harvest interval and 
retreatment interval.

Flexstar 
Page 24 
REGION 4a 
(Maximum Rate 1 pt/A (0.25 lb ai/A), Alternate Years*) 
 
 
 
 
 
 
 
 
Includes the following portions of states where Flexstar may be applied: 
Region 
4a 
Kansas All areas west of U.S. Highway 281 to the Colorado state line. 
Nebraska All areas that intersect west of U.S. Highway 281 and east of U.S. Highway 
83. 
Refer to crop specific application directions in this label for specific application information in each region 
including the maximum yearly application rate, maximum number of applications, pre-harvest interval and 
retreatment interval. 
 
*Note: Refer to the Restrictions section for additional requirements that must be 
followed to use Flexstar in Region 4a.

Flexstar 
Page 25 
REGION 5 
(Maximum Rate 0.75 pt/A (0.1875 lb ai/A), alternate years) 
 
 
 
 
 
 
 
Includes the following states or portion of states where Flexstar may be applied: 
 
 
Region 5 
Minnesota All areas south of U.S. Highway 2 (except those areas in Region 4), plus 
Betrami, Clearwater, Lake of the Woods, Kittson, Marshall, Pennington, 
Polk, Red Lake, and Roseau. 
North Dakota All areas east of U.S. Highway 281, except those areas in Region 4. 
South Dakota All areas east of U.S. Highway 281, except those areas in Region 4. 
Refer to crop specific application directions in this label for specific application information in each region 
including the maximum yearly application rate, maximum number of applications, pre-harvest interval and 
retreatment interval.

Flexstar 
Page 26 
APPLICATION RATES FOR WEED GROWTH STAGES 
 
Weed 
Flexstar Rate (pt/A) 
Maximum Growth Stage Controlled At 
3/4 pt/A 
# of True 
Leaves 
1 pt/A 
# of True 
Leaves 
1.25 pt/A 
# of True 
Leaves 
1.5 pt/A 
# of True 
Leaves 
Anoda, Spurred ņ 2* 2 4 
Balloonvine ņ ņ 2 4 
Carpetweed ņ 8" Diameter 
Size 
Unlimited 
Size 
Unlimited 
Size 
Citron (Wild 
Watermelon) 
ņ 2 4 4 
Cocklebur, Common 2 4 6 8 
Copperleaf, 
Hophornbeam 
ņ 4 4 6 
Copperleaf, Virginia ņ 4 4 6 
Crotalaria, Showy ņ 6 6 8 
Croton, Tropic ņ 4 4 6 
Cucumber, Volunteer ņ 4 6 8 
Eclipta ņ 2 4 4 
Groundcherry, Cutleaf ņ 4 6 8 
Hemp ņ 4 6 6 
Horsenettle ņ 2* 4* 4* 
Jimsonweed 4 6 8 8 
Ladysthumb 2* 2 4 6 
Lambsquarters, 
Common 
2* 2* 2* 2* 
Mexicanweed ņ 2* 2 4 
Morningglory 
 Cypressvine 2 4 6 6 
 Entireleaf var. 3* 3 4 5 
 Ivyleaf 3* 3 4 5 
 Purple Moonflower 3* 3 5 6 
 Red (Scarlet) 3* 3 6 6 
 Smallflower 3* 3 4 6 
 Pitted (Smallwhite) 4* 4 6 6 
 Tall (Common) 2* 2 3 5 
 Palmleaf (Willowleaf) 3* 3 6 6 
Mustard, Wild 4 6 8 8 
Nightshade, Black 2 4 6 6 
Nutsedge, Yellow ņ ņ * * 
Pigweed, spp. 
 Amaranth, Palmer 2 4 6 6 
 Amaranth, Spiny 2 2 4 6

Flexstar 
Page 27 
Weed 
Flexstar Rate (pt/A) 
Maximum Growth Stage Controlled At 
3/4 pt/A 
# of True 
Leaves 
1 pt/A 
# of True 
Leaves 
1.25 pt/A 
# of True 
Leaves 
1.5 pt/A 
# of True 
Leaves 
 Redroot 2 4 6 8 
 Smooth 2 4 6 6 
 Waterhemp, Common 2* 2 4 6 
 Waterhemp, Tall 2* 2 4 6 
Poinsettia, Wild ņ 2 4 6 
Purslane, Common ņ Multi-Leaf 
6" Diameter 
Multi-Leaf 
8" Diameter 
Multi-Leaf 
8" Diameter 
Pusley, Florida ņ 2 2 4 
Ragweed, Common 4* 4 6 8 
Ragweed, Giant 4* 4 6 8 
Redweed ņ ņ 2* 3* 
Sesbania, Hemp ņ 8 12 12 
Sicklepod ņ ņ Cotyledon* Cotyledon* 
Sida, Prickly ņ 2* 2 4 
Smartweed, 
Pennsylvania 
4* 4 6 6 
Smellmelon ņ 2 2 4 
Spurge, Prostrate ņ ņ 1" Diameter* 2" Diameter* 
Spurge, Spotted ņ ņ 2* 2* 
Starbur, Bristly ņ 4 4 6 
Sunflower, Common ņ ņ 2 4 
Velvetleaf ņ 2 4 4 
Venice Mallow 4 6 6 8 
Witchweed ņ Multi-leaf 
Up to 7" 
Multi-leaf 
Up to 10" 
Multi-leaf 
Up to 10" 
Yellow Rocket 4 4 6 8 
 
*Suppression Only

Flexstar 
Page 28 
 
USE DIRECTIONS FOR ADDITIONAL WEED PROBLEMS 
 
Suppression of Annual Grasses: 
 
The grasses listed below may be suppressed by postemergence applications and 
controlled or suppressed by preemergence applications of Flexstar at 1-1.5 pt/A (0.25 – 
0.375 lb ai/A). Consult Use Rate Table for maximum rate in each region. For full-
season broad-spectrum annual grass control, Fusilade® DX or Fusion® herbicide 
needs to be used alone or in tank mix with Flexstar. Consult tank mix section. 
 
Barnyardgrass 
Broadleaf Signalgrass 
Crabgrass 
Foxtail 
 Giant 
 Green 
 Yellow 
Goosegrass 
Johnsongrass, Seedling 
Panicum, Fall 
Panicum, Texas 
 
Suppression of Perennial Weeds: 
 
Use of Flexstar at postemergence rates of 1-1.5 pt/A (0.25 – 0.375 lb ai/A) will aid in 
suppressing the above-ground portions of the weeds listed below until crop canopy can 
assist in suppression. Perennial weeds continue to regrow from underground 
rootstocks even if above-ground foliage is temporarily controlled or retarded. Even 
though Flexstar and crop competition can suppress perennial weeds for a growing 
season, the rootstocks will continue to live and reestablishment will occur in subsequent 
years. 
 
Milkweed, Climbing 
Milkweed, Honeyvine 
Bindweed, Field 
Bindweed, Hedge 
Trumpetcreeper

Flexstar 
Page 29 
 
TANK MIX AND SEQUENTIAL APPLICATIONS FOR SOYBEANS 
 
Flexstar can be used sequentially or in tank mix with one or more of the following 
products: Assure II®, Basagran®, Butyrac®, Classic®, FirstRate®, Fusilade DX, 
Fusion, Glyphosate (including Roundup®, Glyphomax™), Gramoxone® brands, 
Harmony®, Liberty® 280 SL Herbicide, Poast®, Poast Plus®, Pursuit®, Raptor®, 
Resource®, Scepter®, Select®. 
 
Under certain conditions, the mixture of Flexstar with one or more of the above 
mentioned broadleaf herbicides may cause a reduction in activity of any postemergence 
grass herbicide in the mixture. 
 
For sequential applications allow 2-3 days after the application of the grass herbicide 
before applying Flexstar or Flexstar mixtures. Where Flexstar or the Flexstar mixture is 
applied first, apply the grass herbicide when grass weeds begin to develop new leaves 
(generally around 7 days). 
 
x Tank mix applications can result in increased crop injury as compared to either 
product used alone. 
 
x Restriction: Do not exceed 1 fl oz of Butyrac per acre in mixture with Flexstar. 
 
x It is the pesticide user’s responsibility to ensure that all products are registered for 
the intended use. Read and follow the applicable restrictions and limitations and 
directions for use on all product labels involved in tank mixing. Users must follow the 
most restrictive directions for use and precautionary statements of each product in 
the tank mixture.

Flexstar 
Page 30 
 
APPENDIX 
 
Scientific names are listed for those weeds referred to in the Flexstar label. 
 
COMMON NAME SCIENTIFIC NAME
Amaranth, Palmer Amaranthus palmeri 
Amaranth, Spiny Amaranthus spinosus 
Anoda, Spurred Anoda cristata 
Balloonvine Cardiospermum halicacabum 
Barnyardgrass Echinochloa crus-galli 
Bindweed, Field Convolvulus arvensis 
Bindweed, Hedge Calystegia sepium 
Broadleaf Signalgrass Brachiaria platyphylla 
Carpetweed Mollugo verticillata 
Citron (Wild Watermelon) Citrullus vulgaris 
Cocklebur, Common Xanthium strumarium 
Copperleaf, Hophornbeam Acalypha ostryifolia 
Copperleaf, Virginia Acalypha virginica 
Crabgrass Digitaria spp. 
Crotalaria, Showy Crotalaria spectabilis 
Croton, Tropic Croton glandulosus 
Cucumber, Volunteer Cucumis sativas 
Eclipta Eclipta prostrata 
Foxtail, Giant Setaria faberi 
Foxtail, Green Setaria viridis 
Foxtail, Yellow Setaria pumila 
Goosegrass Eleusine indica 
Groundcherry, Cutleaf Physalis angulata 
Hemp Cannabis sativa 
Horsenettle Solanum carolinense 
Jimsonweed Datura stramonium 
Johnsongrass, Seedling Sorghum halepense 
Ladysthumb Polygonum persicaria 
Lambsquarters, Common Chenopodium album 
Mexicanweed Caperonia castaniifolia 
Milkweed, Climbing Sarcostemma cyanchoides 
Milkweed, Honeyvine Ampelamus albidus 
Morningglory, Cypressvine Ipomoea quamoclit 
 Entireleaf Ipomoea hederacea var. integriuscula 
 Ivyleaf Ipomoea hederacea var. hederacea 
 Purple Moonflower Ipomoea turbinata 
 Red (Scarlet) Ipomoea coccinea 
 Smallflower Jacquemontia tamnifolia 
 Pitted (Small White) Ipomoea lacunosa

Flexstar 
Page 31 
COMMON NAME SCIENTIFIC NAME
 Tall (Common) Ipomoea purpurea 
 Palmleaf (Willowleaf) Ipomoea wrightii 
Mustard, Wild Brassica kaber 
Nightshade, Black Solanum nigrum 
Nutsedge, Yellow Cyperus esculentus 
Panicum, Fall Panicum dichotomiflorum 
Panicum, Texas Panicum texanum 
Pigweed, Redroot Amaranthus retroflexus 
Pigweed, Smooth Amaranthus hybridus 
Poinsettia, Wild Euphorbia heterophylla 
Purslane, Common Portulaca oleracea 
Pusley, Florida Richardia scabra 
Ragweed, Common Ambrosia artemisiifolia 
Ragweed, Giant Ambrosia trifida 
Redweed Melochia corchorifolia 
Sesbania, Hemp Sesbania exaltata 
Sicklepod Cassia obtusifolia 
Sida, Prickly Sida spinosa 
Smartweed, Pennsylvania Polygonum pensylvanicum 
Smellmelon Cucumis melo 
Spurge, Prostrate Euphorbia humistrata 
Spurge, Spotted Euphorbia maculata 
Starbur, Bristly Acanthospermum hispidum 
Sunflower, Common Helianthus annuus 
Trumpetcreeper Campsis redicans 
Velvetleaf Abutilon theophrasti 
Venice Mallow Hibiscus trionum 
Waterhemp, Common Amaranthus rudis 
Waterhemp, Tall Amaranthus tuberculatos 
Witchweed Striga asiatica 
Yellow Rocket Barbarea vulgaris

Flexstar 
Page 32 
 
STORAGE AND DISPOSAL 
 
Do not contaminate water, food, or feed by storage or disposal. 
 
Pesticide Storage 
 
Store above 32qF in original containers only. If product solidifies, return to room 
temperature and agitate to reconstitute. Keep container closed when not in use. Do not 
store near food or feed. In case of spill or leak on floor or paved surfaces, soak up with 
sand, earth or synthetic absorbent. Remove to chemical waste area. 
 
Pesticide Disposal 
 
Pesticide wastes are toxic. 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. 
 
Container Handling [less than or equal to 5 gallons] 
 
Non-refillable container. Do not reuse or refill this container. Triple rinse container (or 
equivalent) promptly after emptying. Triple rinse as follows: Empty the remaining 
contents into application equipment or mix tank and drain for 10 seconds after the flow 
begins to drip. Fill the container ¼ full with water and recap. Shake for 10 seconds. 
Pour rinsate into application equipment or mix tank or store rinsate for later use or 
disposal. Drain for 10 seconds after the flow begins to drip. Repeat this procedure two 
more times. Then offer for recycling if available or puncture and dispose of in a sanitary 
landfill, or by incineration, or by other procedures approved by state and local 
authorities.

Flexstar 
Page 33 
Container Handling [greater than 5 gallons] 
 
Non-refillable container. Do not reuse or refill this container. Triple rinse container 
(or equivalent) promptly after emptying. Triple rinse as follows: Empty the remaining 
contents into application equipment or a mix tank. Fill the container ¼ full with water. 
Replace and tighten closures. Tip container on its side and roll it back and forth, 
ensuring at least one complete revolution, for 30 seconds. Stand the container on its 
end and tip it back and forth several times. Turn the container over onto its other end 
and tip it back and forth several times. Empty the rinsate into application equipment or 
a mix tank or store rinsate for later use or disposal. Repeat this procedure two more 
times. Then offer for recycling if available or puncture and dispose of in a sanitary 
landfill, or by incineration, or by other procedures approved by state and local 
authorities. 
 
Container Handling [greater than 5 gallons] 
 
Refillable container. Refill this container with pesticide only. Do not reuse this 
container for any other purpose. Cleaning the container before final disposal is the 
responsibility of the person disposing of the container. Cleaning before refilling is the 
responsibility of the person refilling. To clean container before final disposal, empty the 
remaining contents from this container into application equipment or mix tank. Fill the 
container about 10 percent full with water. Agitate vigorously or recirculate water with 
the pump for 2 minutes. Pour or pump rinsate into application equipment or rinsate 
collection system. Repeat this rinsing procedure two more times. Then offer for 
recycling if available or puncture and dispose of in a sanitary landfill, or by incineration, 
or by other procedures approved by state and local authorities. 
 
CONTAINER IS NOT SAFE FOR FOOD, FEED OR DRINKING WATER.

Flexstar 
Page 34 
 
 
CONDITIONS OF SALE AND LIMITATION OF WARRANTY AND LIABILITY 
 
NOTICE: Read the entire Directions for Use and Conditions of Sale and Limitation of 
Warranty and Liability before buying or using this product. If the terms are not 
acceptable, return the product at once, unopened, and the purchase price will be 
refunded. 
 
The Directions for Use of this product must be followed carefully. It is impossible to 
eliminate all risks inherently associated with the use of this product. Crop injury, 
ineffectiveness or other unintended consequences may result because of such factors 
as manner of use or application, weather or crop conditions, presence of other materials 
or other influencing factors in the use of the product, which are beyond the control of 
SYNGENTA CROP PROTECTION, LLC or Seller. To the extent permitted by 
applicable law, Buyer and User agree to hold SYNGENTA and Seller harmless for any 
claims relating to such factors. 
 
SYNGENTA warrants that this product conforms to the chemical description on the label 
and is reasonably fit for the purposes stated in the Directions for Use, subject to the 
inherent risks referred to above, when used in accordance with directions under normal 
use conditions. To the extent permitted by applicable law: (1) this warranty does not 
extend to the use of the product contrary to label instructions, or under conditions not 
reasonably foreseeable to or beyond the control of Seller or SYNGENTA, and (2) Buyer 
and User assume the risk of any such use. TO THE EXTENT PERMITTED BY 
APPLICABLE LAW, SYNGENTA MAKES NO WARRANTIES OF MERCHANTABILITY 
OR OF FITNESS FOR A PARTICULAR PURPOSE NOR ANY OTHER EXPRESS OR 
IMPLIED WARRANTY EXCEPT AS WARRANTED BY THIS LABEL. 
 
To the extent permitted by applicable law, in no event shall SYNGENTA be liable for 
any incidental, consequential or special damages resulting from the use or handling of 
this product. TO THE EXTENT PERMITTED BY APPLICABLE LAW, THE 
EXCLUSIVE REMEDY OF THE USER OR BUYER, AND THE EXCLUSIVE LIABILITY 
OF SYNGENTA AND SELLER FOR ANY AND ALL CLAIMS, LOSSES, INJURIES OR 
DAMAGES (INCLUDING CLAIMS BASED ON BREACH OF WARRANTY, 
CONTRACT, NEGLIGENCE, TORT, STRICT LIABILITY OR OTHERWISE) 
RESULTING FROM THE USE OR HANDLING OF THIS PRODUCT, SHALL BE THE 
RETURN OF THE PURCHASE PRICE OF THE PRODUCT OR, AT THE ELECTION 
OF SYNGENTA OR SELLER, THE REPLACEMENT OF THE PRODUCT. 
 
SYNGENTA and Seller offer this product, and Buyer and User accept it, subject to the 
foregoing Conditions of Sale and Limitation of Warranty and Liability, which may not be 
modified except by written agreement signed by a duly authorized representative of 
SYNGENTA.

Flexstar 
Page 35 
Flexstar®, Fusilade®, Fusion®, Gramoxone®, the ALLIANCE FRAME the SYNGENTA 
Logo and the PURPOSE ICON are Trademarks of a Syngenta Group Company 
 
Basagran®, Poast®, Poast Plus®, Pursuit®, Raptor®, and Scepter® trademarks of 
BASF Ag Products 
 
Assure II®, Classic®, Harmony® and Viton® trademarks of E.I. DuPont de Nemours & 
Co., Inc. 
 
Select® and Resource® trademarks of Valent Chemical Co. 
 
Butyrac® trademark of Albaugh Inc. 
 
Roundup® trademark of Monsanto Company 
 
FirstRate® and Glyphomax™ trademark of Dow Agro Sciences 
 
Liberty® is a trademark of Bayer CropScience 
 
©201X Syngenta 
 
 
For non-emergency (e.g., current product information), call 
Syngenta Crop Protection at 1-800-334-9481 
 
 
Manufactured for: 
Syngenta Crop Protection, LLC 
P.O. Box 18300 
Greensboro, North Carolina 27419-8300 
 
FLEXSTAR 1101 MAS 0316 AMEND MAY2018- Ver D– mar– 12/17/18 
000100-01101.20180529D.FLEXSTAR-AMEND-MAY2018.PDF 
 
FLEXSTAR 1101 MAS 0316 AMEND MAY2018- Ver D-HI– mar– 12/17/18 
000100-01101.20180529D.FLEXSTAR-AMEND-MAY2018-HI.PDF 
 
FLEXSTAR 1101 MAS 0316 AMEND MAY2018- Ver C– mar– 12/12/18 
000100-01101.20180529C.FLEXSTAR-AMEND-MAY2018.PDF 
 
FLEXSTAR 1101 MAS 0316 AMEND MAY2018-HI- Ver C– mar– 12/12/18 
000100-01101.20180529C.FLEXSTAR-AMEND-MAY2018-HI.PDF 
 
FLEXSTAR 1101 MAS 0316 AMEND MAY2018-HI- Ver B– mar– 9/17/18 
000100-01101.20180529B.FLEXSTAR-AMEND-MAY2018-HI.PDF 
 
FLEXSTAR 1101 MAS 0316 AMEND MAY2018-HI– mar– 5/2918 
000100-01101.20180529.FLEXSTAR-AMEND-MAY2018-HI.PDF