Thifensulfuron-methyl 25% WP is recommended for selective
post-emergence control, or partial control, of broadleaf and
gramineous weeds in sugar beets.
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. Have the product
container or label with you when calling a poison control center or
doctor, or going for treatment. You may also contact 1-800-441-3637
for emergency medical treatment information.
HAZARDS TO HUMANS AND DOMESTIC ANIMALS
CAUTION! Avoid contact with skin, eyes and clothing. In case of
contact with eyes, immediately flush with plenty of water. Get
medical attention if irritation persists.
For medical emergencies involving this product, call toll free 1-800-441-3637.
PERSONAL PROTECTIVE EQUIPMENT
Applicators and other handlers must wear:
Long-sleeve shirt and long pants. Chemical Resistant Gloves
Category A (such as butyl rubber, natural rubber, neoprene rubber
or nitrile rubber), all >14 mls.
Shoes plus socks.
Follow manufacturer's instructions for cleaning/maintaining PPE. If
no such instructions for washables, use detergent and hot water.
Keep and wash PPE separately from other laundry.
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.
USER SAFETY RECOMMENDATIONS
USERS SHOULD: Wash hands before eating, drinking, chewing gum, using tobacco or
using the toilet
DIRECTIONS FOR USE
It is a violation of 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.
Thifensulfuron-methyl 25% WP herbicide should be used only in
accordance with the recommendations on this label.
AGRICULTURAL USE REQUIREMENTS
Use this product only in accordance with its labeling and with the
Worker Protection Standard. 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
Do not enter or allow worker entry into treated areas during the
restricted entry interval (REI) of 4 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:
Chemical Resistant Gloves Category A (such as butyl rubber, natural
rubber, neoprene rubber or nitrile rubber), all >14 mls.
Shoes plus socks.
FOR USE ON SUGAR BEETS INCLUDING THOSE GROWN FOR SEED
The maximum use rate is 2.5 ounces Thifensulfuron-methyl 25% WP per
acre per growing season.
Treat small weeds beginning with the first application. Use higher
rates as weed size or population increases.
Applications should be made 5 to 10 days apart or as weeds
germinate. Use a close sequential application if first application
was on weeds with 4 leaves.
With an adjuvant, some weeds are controlled with
Thifensulfuron-methyl 25% WP alone (see Weeds Controlled). For best
results on these weeds, use a minimum of two sequential
applications 5-10 days apart or as weeds germinate.
Dosage Chart for Thifensulfuron-methyl 25% WP Band Applications
Band Rates* according to Row Spacing
Band width 22”rows 30” rows 42” rows
7” 1/6 oz/A 1/8 oz/A 1/12 oz/A
11” 1/4 oz/A 1/5 oz/A 1/7 oz/A
* Equivalent 1/2 oz/Acre Broadcast.
Use proportionately more for higher broadcast rate equivalents.
Wider band widths may result in better overall weed control on
fields with high weed populations.
CROP STAGE AT APPLICATION
Thifensulfuron-methyl 25% WP can be safely applied to sugar beets
any time after planting.
Chlorosis (yellowing) may be observed following an application of
Thifensulfuron-methyl 25% WP . This effect is temporary.
Applications of Thifensulfuron-methyl 25% WP to crops under stress
(such as stress due to lack of moisture, hail damage, flooding,
herbicide injury, mechanical injury, or widely fluctuating
temperatures) may result in crop injury. Before making applications
of Thifensulfuron-methyl 25% WP to crops previously under stress,
or injured from other pesticide applications, the crop needs to be
fully recovered and growing vigorously.
Apply no later than 60 days before harvest. Tank mix partners have
different preharvest intervals. Always use the most restrictive
interval when tank mixing.
WEED STAGE AT APPLICATION
The growth stage of weeds at application is very important for
satisfactory control. For best results, apply to small, emerged
weeds between the cotyledon and two true leaf stage.
Weeds should be actively growing and not under stress. Applications
made to larger weeds or to weeds under stress may result in
unsatisfactory control. See Environmental Conditions and Biological
Since Thifensulfuron-methyl 25% WP has little to no soil activity,
only weeds that have emerged above the soil surface will be
controlled. Use sequential tank mix applications to control new
SPECIFIC WEED PROBLEMS
Wild buckwheat- Apply to cotyledon to 2 leaf stage.
Mallow species- Apply to cotyledon to 1 leaf stage. Three applications may be
required to control multiple flushes. Larger sizes may only be
Velvetleaf- Apply to cotyledon to1 leaf stage. Using Thifensulfuron-methyl 25%
WP + adjuvant may give best control. Three applications may be
required to control multiple flushes.
Larger sizes may only be suppressed.
Some crops are sensitive to Thifensulfuron-methyl 25% WP . All
direct and indirect contact (e.g. spray drift) with crops other
than sugar beets should be avoided. See Spray Drift.
Since foliar absorption is the primary means of
Thifensulfuron-methyl 25% WP uptake by plants, thorough spray
coverage of weeds is essential. Select a spray volume and delivery
system that will ensure thorough coverage and a uniform spray
Weeds shielded from spray by other weeds or sugar beet leaves may
not be controlled.
Use 50 mesh or finer strainer and nozzle screens.
Make sure screens are clean prior to using Thifensulfuron-methyl
25% WP .
Continuous agitation is required to keep Thifensulfuron-methyl 25%
WP in Suspension.
Do not apply Thifensulfuron-methyl 25% WP through any type of
GROUND APPLICATION (SEE SPRAY DRIFT)
Use a minimum of 10 gallons water per acre. Under heavy weed
pressure, dense crop foliage, or moisture stress conditions,
increase volume an additional 5 gallons per acre.
Change nozzle size to increase gallonage. Broadcast or band
applications are recommended. For proper spray coverage, adjust the
boom and nozzle height according to equipment manufacturer’s
specifications. Injection systems can be used with
Thifensulfuron-methyl 25% WP . More information is included in the
bulletin “Using (liquid) Chemical Injection Systems with
Thifensulfuron-methyl 25% WP herbicide”.
AERIAL APPLICATION (SEE SPRAY DRIFT)
Use a minimum of 5 gallons water per acre.
Timely cultivation(s) can be used in addition to
Thifensulfuron-methyl 25% WP tank mixes for optimum weed control in
a sugar beet management program.
ENVIRONMENTAL CONDITIONS AND BIOLOGICAL ACTIVITY
Thifensulfuron-methyl 25% WP provides the best postemergence
results when applied to small, actively, growing weeds.
Thifensulfuron-methyl 25% WP rapidly stops growth of susceptible
weeds. Weeds turn yellow 7-21 days after postemergence application,
followed by death of the growing point.
Conditions that promote the activity of Thifensulfuron-methyl 25%
WP are warm temperatures and adequate soil moisture before, during
and immediately after application. Treating large or stressed weeds
may result in poor weed control. Delay application until stress
passes and weeds begin to grow again. Best results are obtained
when applications avoid: injury from previous herbicide
applications, cold, dry conditions, stress conditions due to frost,
drought or water saturated soil, disease or insect damage.
Dry, dusty field conditions may reduce weed control in wheel track
areas. Higher volumes and wider band widths may improve control in
A vigorously growing crop will aid weed control by shading and
providing competition for weeds. In areas of thin stand or seeding
skips, additional flushes of weeds may occur.
Rainfall within 6 hours may reduce weed control.
INFORMATION ON RESISTANT WEEDS
Naturally occurring weed biotypes will also be resistant to
Thifensulfuron-methyl 25% WP .
If resistant weed biotypes, such as kochia, are suspected or known
to be present, spray Thifensulfuron-methyl 25% WP in tank mixtures
with other broadleaf herbicides having a different mode of
action**. Adjust the use rate of the tank mix partner so that it
alone will control the resistant biotypes.
Several strategies can delay the development of resistant weed
1. Use preplant incorporated or preemergence herbicides for weed
control prior to postemergence use of Thifensulfuron-methyl 25% WP
2. Application of Thifensulfuron-methyl 25% WP in a tank mix with
another mode of action herbicide.
3. The use of cultivation and/or hand weeding to control escapes.
4. Improve control of these species in rotational crops.
* Biotypes are naturally-occurring individuals of the species which
have a slightly different genetic makeup. Resistant biotypes may
look exactly the same as susceptible biotypes. Herbicide-resistant
biotypes are able to survive a use rate several times higher than
needed to control susceptible biotypes.
** Mode of action is the chemical interaction that disrupts plant
growth and development.
his product may be used as part of an Integrated Pest Management
(IPM) program which can include biological, cultural, and genetic
practices aimed at preventing economic pest damage. Application of
this product should be based on IPM principles and practices
including field scouting or other detection
methods, correct target pest identification, population monitoring,
and treating when target pest populations reach locally determined
action thresholds. Consult your state cooperative extension
service, professional consultants or other qualified authorities to
determine appropriate action
treatment threshold levels for treating specific pest/crop or site
systems in your area.
Sugar beets may be replanted anytime after application of
Thifensulfuron-methyl 25% WP .
Any other crop, except corn, may be planted 14 days after the last
application of Thifensulfuron-methyl 25% WP . Corn can be planted
21 days after using Thifensulfuron-methyl 25% WP .
Thifensulfuron-methyl 25% WP has no restriction on grazing or
feeding of crop residue to livestock. Tank mix partners may have
grazing or feeding restrictions, therefore always refer to the
label of the tank mix partner and follow the most restrictive
SPRAYER PREPARATION AND CLEANUP
It is important that spray equipment is cleaned and free of
existing pesticide deposits before using Thifensulfuron-methyl 25%
WP . Follow the cleanup procedures specified on the label of the
product previously sprayed. If no cleanout procedure is provided,
use the one that follows.
To avoid subsequent injury to other crops, thoroughly clean all
mixing and spray equipment immediately following applications of
Thifensulfuron-methyl 25% WP .
AT THE END OF THE DAY
It is recommended when Thifensulfuron-methyl 25% WP will be applied
over several days, at the end of each day, rinse the interior of
the tank with fresh water, then partially fill the tank and flush
the boom and hoses. This will prevent the buildup of dried
pesticide deposits which are difficult to remove from application
1. Drain tank and thoroughly hose down the interior surfaces. Flush
the tanks, boom, and hoses with clean water. Loosen and physically
remove any visible deposits.
2. Partially fill the tank with clean water and one gallon
household ammonia* (contains 3% active ingredient) for every 100
gallons of water. Flush the hoses, boom, and nozzles with the
cleaning solution, then add more water to completely fill the tank.
Circulate, with agitation, the cleaning solution through the tank
and hoses for at least 15 minutes. Flush the hoses, boom, and
nozzles again with the
cleaning solution and drain the tank.
3. Remove the nozzles and screens and clean separately in a bucket
containing cleaning agent and water.
4. Repeat step 2
5. Rinse the tank, boom, and hoses with clean water.
6. The rinsate may be disposed of on site or at an approved waste
1. When Thifensulfuron-methyl 25% WP is tank mixed with other
pesticides, all cleanout procedures should be examined and the most
rigorous procedure should be followed.
2. In addition to this cleanout procedure, any pre-cleanout
procedures for the next product to be sprayed should be examined
and the most rigorous procedure should be followed.
3. Where routine spraying practices include shared equipment
frequently being switched between applications of
Thifensulfuron-methyl 25% WP and applications to crops other than
sugar beets during the same spray season, it is recommended a
sprayer be dedicated to Thifensulfuron-methyl 25% WP to further
reduce the chance of crop injury.
SPRAY DRIFT MANAGEMENT
The interaction of many equipment and weather-related factors
determines the potential for spray drift. The applicator is
responsible for considering all these factors when making
AVOIDING SPRAY DRIFT IS THE RESPONSIBILITY OF THE APPLICATOR.
IMPORTANCE OF DROPLET SIZE
The most effective way to reduce drift potential is to apply large
droplets (>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 Inversions 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.
• Pressure - Use the lower spray pressures recommended for the nozzle. Higher
pressure reduces droplet size and does not improve canopy
WHEN HIGHER FLOW RATES ARE NEEDED, USE A HIGHERCAPACITY 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 lowdrift nozzles.
Controlling Droplet Size - Aircraft
• Number of Nozzles - Use the minimum 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
• Nozzle Type - Solid stream nozzles (such as disc and core with swirl plate
removed) oriented straight back produce larger droplets than other
• 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 10 ft above the canopy increases the
potential for spray drift.
Setting the boom at the lowest labeled height (if specified) which
provides uniform 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.
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.
Note: Local terrain can influence wind patterns. Every applicator should
be familiar with local wind patterns and how they affect spray
TEMPERATURE AND HUMIDITY
When making applications in hot and dry conditions, set up
equipment to produce larger droplets to reduce effects of
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 morning. 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.
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 BLAST) 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.
Thifensulfuron-methyl 25% WP should be used only in accordance with
recommendations on this label or in separately published
Injury to or loss of desirable trees or vegetation may result from
failure to observe the following:
Do not apply, drain or flush equipment on or near desirable trees
or other plants, or 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. Prevent drift of spray to desirable
Do not contaminate any body of water.
Thoroughly clean application equipment immediately after use (refer
to "Sprayer Preparation and Cleanup" section of this label).
Thifensulfuron-methyl 25% WP is non-corrosive, non-flammable,
non-volatile, and does not freeze in storage.
STORAGE AND DISPOSAL
Storage: Store product in original container only. Do not contaminate
water, other pesticides, fertilizer, food or feed in storage. Store
in a cool, dry place.
Product Disposal: Do not contaminate water, food, or feed by disposal. Waste
resulting from the use of this product may be disposed of on site
or at an approved waste disposal facility.
Container Disposal: For Plastic Containers:
Triple rinse (or equivalent). Then offer for recycling or
reconditioning, or puncture and dispose of in a sanitary landfill,
or incineration, or, if allowed by State and local authorities, by
burning. If burned, stay out of smoke.
For Fiber Sacks: Completely empty fiber sack by shaking and tapping sides and
bottom to loosen clinging particles. Empty residue into
manufacturing or application equipment. Then dispose of sack in a
sanitary landfill or by incineration if allowed by State and local
For Fiber Drums With Liners: Completely empty liner by shaking and tapping sides and bottom to
loosen clinging particles. Empty residue into application
equipment. Then dispose of liner in a sanitary landfill or by
incineration if allowed by State and local authorities. If drum is
contaminated and cannot be reused, dispose of in the same manner.
For Bags Containing Water Soluble Packets: Do not reuse the outer box or the resealable plastic bag. When all
water-soluble packets are used, the outer packaging should be clean
and may be disposed of in a sanitary landfill or by incineration,
or if allowed by State and local authorities, by open burning. If
burned, stay out of smoke. If the resealable plastic bag contacts
the formulated product in any way, the bag must be triplerinsed
with clean water. Add the rinsate to the spray tank and dispose of
the outer wrap as described above.
For Metal Containers (non aerosol): Triple rinse (or equivalent) the container. Then offer for
recycling or reconditioning, or puncture and dispose of in a
sanitary landfill, or by other procedures approved by State and
For Paper and Plastic Bags: Completely empty bag into application equipment. Then dispose of
empty bag in a sanitary landfill or by incineration, or, if allowed
by State and local authorities, by burning. If burned, stay out of
LIMITATION OF WARRANTY AND LIABILITY
NOTICE: Read This 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. It is impossible to eliminate all risks associated
with the use of this product. Such risks arise from weather
conditions, soil factors, off target movement, unconventional
farming techniques, presence of other materials, the manner of use
or application, or other unknown factors, all of which are beyond
the control of Xingyu. These risks can cause: ineffectiveness of
the product; crop injury, or; injury to non-target crops or plants.
XINGYU does not agree to be an insurer of these risks.
WHEN YOU BUY OR USE THIS PRODUCT, YOU AGREE TO ACCEPT THESE RISKS.
XINGYU warrants that this product conforms to the chemical
description on the label thereof and is reasonably fit for the
purpose stated in the Directions for Use, subject to the inherent
risks described above, when used in accordance with the Directions
for Use under normal conditions.
XINGYU MAKES NO OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS OR OF
MERCHANTABILITY OR ANY OTHER EXPRESS OR IMPLIED WARRANTY.IN NO
EVENT SHALL XINGYUOR SELLER BE LIABLE FOR ANY INCIDENTAL,
CONSEQUENTIAL OR SPECIAL DAMAGES RESULTING FROM THE USE OR HANDLING
OF THIS PRODUCT. BUYER'S OR USER'S BARGAINED-FOR EXPECTATION IS
CROP PROTECTION. THE EXCLUSIVE REMEDY OF THE USER OR BUYER AND THE
EXCLUSIVE LIABILITY OF XINGYU OR SELLER, FOR ANY AND ALL CLAIMS,
LOSSES, INJURIES OR DAMAGES (INCLUDING CLAIMS BASED ON BREACH OF
WARRANTY OR CONTRACT, NEGLIGENCE, TORT OR STRICT LIABILITY),
WHETHER FROM FAILURE TO PERFORM OR INJURY TO CROPS OR OTHER PLANTS,
AND 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 XINGYUOR SELLER,THE REPLACEMENT OF THE PRODUCT.
XINGYU or its Ag Retailer must have prompt notice of any claim so
that an immediate inspection of buyer's or user's growing crops can
be made. Buyer and all users shall promptly notify XINGYU or a
XINGYU Ag Retailer of any claims, whether based on contract,
negligence, strict liability, other tort or otherwise or be barred
from any remedy.
This Limitation of Warranty and Liability may not be amended by any
oral or written agreement.
READ THE LABEL BEFORE USE. USING THIS PRODUCT IN A MANNER THAT IS
INCONSISTENT WITH THE LABEL MAY BE AN OFFENCE. FOLLOW THE CODE OF
PRACTICE FOR USING PLANT PROTECTION PRODUCTS.
Thifensulfuron-methyl 25% WP MSDS.pdf