crop-chem-docs/corpus/epa_ppls/241-447.md

# VARISTO HERBICIDE

- EPA Reg No: **241-447**
- Registrant: BASF AGRICULTURAL SOLUTIONS US LLC
- Signal word: Caution
- Active ingredients: Sodium bentazon (43.66%); Imazamox, sodium salt (2%)
- Label accepted: 2021-05-05
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000241-00447-20210505.pdf

---
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 
 WASHINGTON, DC 20460 
 
 
 
Reg Review Label Acceptable v.20151230 
OFFICE OF CHEMICAL SAFETY 
AND POLLUTION PREVENTION 
May 5, 2021 
 
 
Christa Ellers-Kirk 
Country Regulatory Manager 
BASF Corporation 
26 Davis Drive 
Research Triangle Park, NC 27709-3528 
 
Subject: Registration Review Label Mitigation for Bentazon and Imazamox 
 Product Name: Varisto Herbicide 
 EPA Registration Number: 241-447 
 Application Dates: 07/26/2018 and 04/15/2020 
Decision Numbers: 567824 and 567825 
 
Dear Ms. Ellers-Kirk: 
 
The Agency, in accordance with the Federal Insecticide, Fungicide and Rodenticide Act 
(FIFRA), as amended, has completed reviewing all the information submitted with your 
application to support the Registration Review of the above referenced product in connection 
with the Bentazon and Imazamox Interim Decisions, 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.

Page 2 of 2 
EPA Reg. No. 241-447 
Decision No. 567824 and 567825 
 
Reg Review Label Acceptable v.20151230 
If you have any questions about this letter, please contact Quinn Gavin by phone at 703-347-
0325, or via email at gavin.quinn@epa.gov. 
 
 Sincerely, 
 
 
 Linda Arrington, Branch Chief 
 Risk Management and Implementation Branch 4 
 Pesticide Re-Evaluation Division 
 Office of Pesticide Programs 
 
 
Enclosure

For use in clover grown for seed, dry beans, dry peas, English pea 
(succulent), lima bean (succulent), snap bean, and soybean
Active Ingredients:
sodium salt of imazamox: 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)- 
5-oxo-1H-imidazol-2-yl]-5-(methoxymethyl)-3-pyridinecarboxylic acid ........ 2.00%
sodium salt of bentazon: (3-(1-methylethyl)-1H-2,1,3-benzothiadiazin- 
4(3H)-one 2,2-dioxide)............................................ 43.66%
Other Ingredients: ............................................. 54.34%
Total: ........................................................ 100.00%
1 gallon is equivalent to 1.87% or 0.187 pound of imazamox acid and 
40.0% or 4.0 pounds of bentazon acid, formulated as a soluble liquid.
EPA Reg. No. 241-447 EPA Est. No.
KEEP OUT OF REACH OF CHILDREN
CAUTION/PRECAUCION
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.)
FIRST AID: If swallowed: Call a poison control center or doctor immediately for treatment 
advice. Have person sip a glass of water if able to swallow. DO NOT induce vomiting unless told 
to do so by a poison control center or doctor. DO NOT give anything by mouth to an unconscious 
person. If on skin or clothing: Take off contaminated clothing. Rinse skin immediately with plenty 
of water for 15 to 20 minutes. Call a poison control center or doctor for treatment advice. If in 
eyes: Hold eyes open and rinse slowly and gently with water for 15 to 20 minutes. Remove con-
tact lenses, if present, after first 5 minutes; then continue rinsing eyes. Call a poison control center 
or doctor for treatment advice. HOTLINE NUMBER: Have the product container or label with you 
when calling a poison control center or doctor or going for treatment. In case of an emergency 
endangering life or property involving this product, call BASF Corporation for emergency medical 
treatment information, day or night 1-800-832-HELP (4357).
See full label for complete Precautionary Statements, Directions For Use, 
Conditions of Sale and Warranty, and state-specific crop and/or use site restrictions.
Net Contents:
BASF Corporation 
26 Davis Drive, Research Triangle Park, NC 27709
Imazamox Group 2 Herbicide
Bentazon Group 6 Herbicide
[Note to PM: This is the Front Panel/First Page of Booklet]
May 05, 2021
241-447

2
Precautionary Statements
Hazards to Humans and Domestic Animals
CAUTION. Harmful if swallowed or absorbed through 
skin. Avoid contact with skin, eyes, or clothing. Wash thor-
oughly 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.
Personal Protective Equipment (PPE)
Applicators and other handlers must wear:
• Long-sleeved shirt and long pants
• Waterproof gloves
• Shoes plus socks
Follow the manufacturer’s instructions for cleaning and 
maintaining PPE. If no such instructions for washables 
exist, use detergent and hot water. Keep and wash PPE 
separately from other laundry. Discard clothing and other 
absorbent materials that have been drenched or heavily 
contaminated with this product’s concentrate. DO NOT 
reuse them.
USER SAFETY RECOMMENDATIONS
Users should:
• Wash hands before eating, drinking, chewing gum, 
using tobacco, or using the toilet.
• Remove clothing/PPE immediately if pesticide gets 
inside. Then wash thoroughly and put on clean 
clothing.
• Remove PPE immediately after handling this product. 
Wash the outside of gloves before removing. As soon 
as possible, wash thoroughly and change into clean 
clothing.
Environmental Hazards
This pesticide may be hazardous to plants outside the 
treated area. DO NOT apply directly to water, to areas 
where surface water is present, or to intertidal areas below 
the mean high water mark except as directed in this label. 
Off-site movement from spray drift, volatilization, and run-
off may be hazardous to neighboring crops and vegetative 
habitat used for food and cover by wildlife and aquatic 
organisms. DO NOT contaminate water when disposing of 
equipment washwater or rinsate.
Bentazon is known to leach through soil into groundwater 
under certain conditions as a result of agricultural use. Use 
of this chemical in areas where soils are permeable, partic-
ularly where the water table is shallow, may result in 
groundwater contamination.
Nontarget Organism Advisory Statement: This prod-
uct is toxic to plants and may adversely impact the forage 
and habitat of nontarget organisms, including pollinators, 
in areas adjacent to the treated site. Protect the forage and 
habitat of nontarget organisms by following label directions 
intended to minimize spray drift.
Groundwater Advisory Statement: This chemical has 
properties and characteristics associated with chemicals 
detected in groundwater. This chemical may leach into 
groundwater if used in areas where soils are permeable, 
particularly where the water table is shallow.
Surface Water Advisory Statement: This product may 
impact surface water quality due to runoff of rain water. 
This is especially true for poorly draining soils and soils 
with shallow groundwater. This product is classified as 
having high potential for reaching surface water via runoff 
for several months or more 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 Varisto
® herbicide from runoff 
water and sediment. Runoff of this product will be reduced 
by avoiding applications when rainfall or irrigation is 
expected to occur within 48 hours.
FIRST AID
If swallowed
• Call a poison control center or doctor immediately for treatment advice.
• Have person sip a glass of water if able to swallow.
• DO NOT induce vomiting unless told to do so by a poison control center or doctor.
• DO NOT give anything by mouth to an unconscious person.
If on skin or clothing
• Take off contaminated clothing.
• Rinse skin immediately with plenty of water for 15 to 20 minutes.
• Call a poison control center or doctor for treatment advice.
If in eyes
• Hold eyes open and rinse slowly and gently with water for 15 to 20 minutes.
• Remove contact lenses, if present, after first 5 minutes; then continue rinsing eyes.
• Call a poison control center or doctor for treatment advice.
HOTLINE NUMBER
Have the product container or label with you when calling a poison control center or doctor or going for treatment. In 
case of an emergency endangering life or property involving this product, call BASF Corporation for emergency medi-
cal treatment information, day or night 1-800-832-HELP (4357).

3
Directions For Use
It is a violation of federal law to use this product in a man-
ner inconsistent with its labeling. This label must be in the 
possession of the user at the time of pesticide application.
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 applica-
tion. For any requirements specific to your state or tribe, 
consult the agency responsible for pesticide regulation.
Observe all precautions and limitations in this label and the 
labels of products used in combination with Varisto
® 
 herbicide. DO NOT apply Varisto in any manner not 
specifically described in this label. Keep containers closed 
to avoid spills and contamination.
Unless otherwise directed in supplemental labeling, all 
applicable directions, restrictions, precautions, and 
 Conditions of Sale and Warranty are to be followed. 
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 prod-
uct 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 48 hours.
EXCEPTION: If the product is soil-injected or soil- 
incorporated, the Worker Protection Standard, under 
certain circumstances, allows workers to enter the treat-
ed area if there will be no contact with anything that has 
been treated.
PPE required for early entry to treated areas that is per-
mitted under the Worker Protection Standard and that 
involves contact with anything that has been treated, 
such as plants, soil, or water, is:
• Coveralls
• Waterproof gloves
• Shoes plus socks
STORAGE AND DISPOSAL
DO NOT contaminate water, food, or feed by storage or 
disposal.
Pesticide Storage
• KEEP FROM FREEZING.
• DO NOT store below 32° F.
Pesticide Disposal
Wastes resulting from the use of this product must be 
disposed of on-site or at an approved waste disposal 
facility.
Container Handling
Nonrefillable Container. DO NOT reuse or refill this 
container. Triple rinse or pressure rinse container (or 
equivalent) promptly after emptying; then offer for recy-
cling, if available, or reconditioning, if appropriate, or 
puncture and dispose of in a sanitary landfill, or by incin-
eration, or by other procedures approved by state and 
local authorities.
Triple rinse containers small enough to shake 
(capacity ≤ 5 gallons) as follows: Empty the remain-
ing contents into application equipment or a mix tank 
and drain for 10 seconds after the flow begins to drip. Fill 
the container 1/4 full with water and recap. Shake for 
10 seconds. Pour rinsate into application equipment or a 
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.
Triple rinse containers too large to shake 
 (capacity > 5 gallons) as follows: Empty the remain-
ing contents into application equipment or a mix tank. 
Fill the container 1/4 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.
Pressure rinse as follows: Empty the remaining con-
tents into application equipment or mix tank and 
continue to drain for 10 seconds after the flow begins to 
drip. Hold container upside down over application 
equipment or mix tank, or collect rinsate for later use or 
disposal. Insert pressure rinsing nozzle in the side of the 
container and rinse at about 40 PSI for at least 30 sec-
onds. Drain for 10 seconds after the flow begins to drip.
(continued)

4
STORAGE AND DISPOSAL (continued)
Container Handling (continued)
Refillable Container. Refill this container with pesticide 
only. DO NOT reuse this container for any other pur-
pose. Triple rinsing the container before final disposal is 
the responsibility of the person disposing of the contain-
er. Cleaning before refilling is the responsibility of the 
refiller.
Triple rinse as follows: To clean the container before 
final disposal, empty the remaining contents from this 
container into application equipment or mix tank. Fill the 
container about 10% full with water. Agitate vigorously or 
recirculate water with the pump for 2 minutes. Pour or 
pump rinsate into application equipment or rinsate col-
lection system. Repeat this rinsing procedure two more 
times.
When this container is empty, replace the cap and seal 
all openings that have been opened during use; return 
the container to the point of purchase or to a designated 
location. This container must only be refilled with a pesti-
cide product. DO NOT reuse the container for any other 
purpose. Prior to refilling, inspect carefully for damage 
such as cracks, punctures, abrasions, worn-out threads 
and closure devices. Check for leaks after refilling and 
before transport. DO NOT transport if this container is 
damaged or leaking. If the container is damaged, or 
leaking, or obsolete and not returned to the point of pur-
chase or to a designated location, triple rinse emptied 
container and offer for recycling, if available, or dispose 
of container in compliance with state and local 
regulations.
In Case of Emergency
In case of large-scale spill of this product, call:
• CHEMTREC 1-800-424-9300
• BASF Corporation 1-800-832-HELP (4357)
In case of medical emergency regarding this product, call:
• Your local doctor for immediate treatment
• Your local poison control center (hospital)
• BASF Corporation 1-800-832-HELP (4357)
Steps to take if material is released or spilled:
• Dike and contain the spill with inert material (sand, earth, 
etc.) and transfer liquid and solid diking material to sepa-
rate containers for disposal.
• Remove contaminated clothing and wash affected skin 
areas with soap and water.
• Wash clothing before reuse.
• Keep the spill out of all sewers and open bodies of water.
Product Information
Varisto® herbicide controls broadleaf weeds and grass 
weeds by postemergence contact and systemic activity. 
After an application of Varisto, susceptible weeds may 
show yellowing, bronzing, and necrosis. Adequate soil 
moisture is important for optimum Varisto activity. When 
adequate soil moisture is present, Varisto provides residu-
al activity on susceptible germinating weeds. Activity on 
established weeds depends on weed species and the 
location of its root system in the soil. 
When organophosphate insecticide or carbamate insecti-
cide is tank mixed with Varisto, temporary injury to the 
treated crop may result. Separate organophosphate and 
Varisto application by at least 7 days to reduce potential 
for injury.
All labeled crops are tolerant to Varisto. Leaf speckling or 
bronzing may occur, but plants generally outgrow this con-
dition within 10 days. New growth is normal, and crop 
vigor is not reduced. Occasionally, internode shortening 
and/or temporary yellowing of crop plants may occur 
 following Varisto application. These effects can be more 
pronounced if crops are growing under stressful environ-
mental or hot and humid conditions. These effects occur 
infrequently and are temporary. Normal growth and 
appearance should resume within 1 to 2 weeks.
Use of Varisto is expected to result in normal growth of 
rotational crops in most situations; however, various envi-
ronmental and agronomic factors make it impossible to 
eliminate all risks associated with use of this product and, 
therefore, rotational crop injury is always possible.
Replanting
If replanting is necessary in a field previously treated with 
Varisto, the field may be replanted to Clearfield
® corn, 
lentil, and rice; dry beans and dry peas except non- 
Clearfield lentil; English pea; lima bean (succulent); snap 
bean; or soybean. Rework the soil no deeper than 2 inch-
es. DO NOT apply a second treatment of Varisto. 
DO NOT apply another ALS-inhibiting herbicide if replant-
ing is required.
Mode of Action
Varisto contains two herbicide active ingredients: 
 imazamox and bentazon. Imazamox, a Group 2 (WSSA) 
herbicide, inhibits branched chain amino acid production 
in plants by inhibition of the enzyme acetolactate synthase 
(ALS) or acetohydroxy acid synthase (AHAS). Bentazon, 
a Group 6 (WSSA) herbicide, inhibits photosynthesis at 
photo system II (PS II).
Varisto is readily absorbed by leaves. Growth of suscepti-
ble plants is inhibited within a few hours after application. 
Chlorosis begins 3 to 5 days after application followed by 
foliar desiccation and necrosis. Foliar bronzing may occur 
on tolerant crops such as soybean.

5
Herbicide Resistance Management
For resistance management, Varisto® herbicide contains 
both a Group 2 and a Group 6 herbicide. Any weed pop-
ulation may contain plants naturally resistant to Group 2 
and/or Group 6 herbicides. The resistant individuals may 
dominate the weed population if these herbicides are used 
repeatedly in the same fields. Appropriate resistant- 
management strategies should be followed.
To delay herbicide resistance consider:
• Avoiding the consecutive use of herbicides that have a 
similar target-site-of-action on the same weed species.
• Using tank mixes or premixes with herbicides from differ-
ent target-site-of-action groups as long as the involved 
products are all registered for the same use, have differ-
ent sites of action, and are both effective at the tank mix 
or prepack rate on the weed(s) of concern.
• Basing herbicide use on a comprehensive IPM 
 (Integrated Pest Management) program including cultural 
and mechanical methods.
• Monitoring treated weed populations for loss of field effi-
cacy, and control of escapes with effective alternative 
herbicides or mechanical methods.
• Identify weeds present in the field through scouting and 
field history and understand their biology. The weed- 
control program needs to consider all of the weeds 
present.
• Scout fields prior to application to identify the weed spe-
cies present and their growth stage to determine if the 
intended application will be effective.
• Scout fields after application to verify the treatment was 
effective.
• Suspected herbicide-resistance weeds may be identified 
by these indicators:
1. Failure to control a weed species normally controlled 
by the herbicide at the dose applied, especially if con-
trol is achieved on adjacent weeds;
2. A spreading patch of non-controlled plants of a partic-
ular weed species; and
3. Surviving plants mixed with controlled individuals of 
the same species.
• If resistance is suspected, treat weed escapes with a 
herbicide with a different MOA and/or use nonchemical 
methods to remove escapes, as practical, with the goal 
of preventing further seed production.
• Report any incidence of non-performance of this product 
against a particular weed species to your BASF 
representative.
• Contacting your local extension specialist, certified crop 
advisors, and/or manufacturer for herbicide resistance 
management and/or integrated weed management 
directions for specific crops and resistant weed biotypes.
Spray Additives
Postemergence application of Varisto requires the 
addition of an adjuvant and nitrogen fertilizer unless 
otherwise directed in this label.
Adjuvants
When an adjuvant (or a specific adjuvant product, such as 
a drift control agent) is to be used with this product, the 
use of a Chemical Producers and Distributors Association 
(CPDA) certified adjuvant is recommended.
To achieve consistent weed control, an adjuvant 
 [methylated seed oil (MSO), crop oil concentrate (COC), or 
nonionic surfactant (NIS)] AND a nitrogen fertilizer [urea 
ammonium nitrate (UAN) or ammonium sulfate (AMS)] are 
required. The addition of an adjuvant may cause some leaf 
burn, but new growth is normal and crop vigor is not 
reduced. The potential for leaf burn is increased when rela-
tive humidity and temperature are high. See 
Crop- specific Information for restriction of additive 
use on specific crops. 
Methylated Seed Oil
MSO is recommended when weeds are under moisture or 
temperature stress. Use methylated seed oil at 
1  gallon/100 gallons of spray solution 
[1% volume/volume (v/v)].
OR
Crop Oil Concentrate
Use COC adjuvant at 1 to 2 gallons/100 gallons of spray 
solution (1% to 2% v/v). Use high surfactant oil concentrate 
(HSOC) at 0.5 gallon/100 gallons of spray solution 
(0.5% v/v).
OR
Nonionic Surfactant
Use NIS containing at least 80% active ingredient. Apply 
surfactant at 1 quart/100 gallons of spray solution 
(0.25% v/v). Organosilicone surfactant may be used 
instead of NIS.
AND
Nitrogen Fertilizer
Recommended nitrogen-based fertilizers include liquid fer-
tilizers (such as liquid AMS, 28% N, 32% N, or 10-34-0) at 
2.5 gallons/100 gallons of spray solution. Instead of liquid 
fertilizer, spray grade AMS may be used at 12 lbs to 
15 lbs/100 gallons of spray solution.

6
Tank Mix Compatibility Test 
for Mix Components
Before mixing additives and/or other pesticides, always 
perform a compatibility jar test. For 20 gallons per acre 
spray volume, use 3.3 cups (800 mL) of water. For other 
spray volumes, adjust rates accordingly. Only use water 
from the intended source at the source temperature. Add 
components in the sequence indicated in Mixing Order 
using 2 teaspoons for each pound or 1 teaspoon for each 
pint of label rate per acre. Always cap the jar and invert 
10 cycles between component additions. When the com-
ponents have all been added to the jar, let the solution 
stand for 15 minutes. Evaluate the solution for uniformity 
and stability. The spray solution should not have free oil on 
the surface, fine particles that precipitate to the bottom, or 
thick (clabbered) texture. If the spray solution is not com-
patible, repeat the compatibility test with the addition of a 
suitable compatibility agent. If the solution is then compati-
ble, use the compatibility agent as directed on its label. If 
the solution is still incompatible, DO NOT mix the ingredi-
ents in the same tank.
Tank Mix Combinations with 
other Herbicides
See Crop-specific Information for details. It is the pesti-
cide user’s responsibility to ensure that all products are 
registered for the intended use. Read and follow the appli-
cable restrictions and limitations and directions for use on 
all product labels involved in tank mixing. Users must fol-
low the most restrictive directions for use and 
precautionary statements of each product in the tank mix-
ture. DO NOT exceed label dosages. DO NOT mix 
Varisto
® herbicide with any product containing a label 
prohibiting such mixtures.
Make separate applications if target weeds are not all at 
the labeled growth stage for treatment at the same time.
Mixing Order
Maintain agitation throughout mixing and application until 
spraying is completed. If other herbicides or other spray 
tank components are tank mixed with Varisto, while agi-
tating, add components in the following order and 
thoroughly mix after adding each component.
1. Fill spray tank 1/2 to 3/4 full with clean water.
2. Add soluble-packet products and thoroughly mix.
3. Add WP (wettable powder), DG (dispersible granule), 
DF (dry flowable), or liquid flowable formulations not in 
soluble packets.
4. Add Varisto and thoroughly mix.
5. Add other aqueous solution products.
6. Add EC (emulsifiable concentrate) products.
7. Add adjuvant or surfactant to spray tank.
8. Add nitrogen fertilizer solution.
9. Fill remainder of the tank with water.
Application Instructions
Varisto may be applied by ground or air. Thorough spray 
coverage is required for optimum control of emerged 
weeds and can be improved with proper adjuvant, nozzle, 
and spray volume selection. Use and configure application 
equipment for adequate spray volume, accurate and uni-
form distribution of spray droplets over the treated area, 
and to avoid spray drift to non-target areas. Adjust equip-
ment to maintain continuous agitation during spraying with 
good mechanical or bypass agitation. Avoid overlaps that 
will increase rates above use rates specified in this label.
Varisto can affect non-target plant species outside the 
treatment area. To limit adverse effects to non-target 
plants, the applicator must avoid making applications 
when wind can facilitate off-site movement of Varisto in 
the direction of areas such as forested areas, riparian 
areas, wetlands, and areas that serve as habitat for desir-
able and protected animal species.
Ground Application
Water Volume. Use a minimum spray volume of 10 gal-
lons of water per acre to ensure adequate spray coverage. 
Use higher spray volume (up to 20 gallons of water per 
acre) to improve spray coverage when crop and weed foli-
age is dense.
DO NOT use flood, whirl chamber, or controlled droplet 
applicator (CDA) nozzles or selective application equip-
ment such as recirculating sprayers or wiper applicators. 
DO NOT use brass nozzles because of the corrosive 
effects of nitrogen additives.
Aerial Application
Varisto may be applied by air to all crops listed on this 
label.
Water Volume. Use a minimum spray volume of 5 gallons 
of water per acre.
DO NOT apply Varisto by air if sensitive crops (including, 
but not limited to: non-imidazolinone-tolerant canola, lentil, 
rice, sunflower, or wheat; cotton; leafy vegetables; okra; 
and sugar beet) are within 200 feet downwind.

7
Mandatory Spray Drift Management
Ground Boom Applications
• User must only apply with the release height recom-
mended by the manufacturer, but no more than 3 ft 
above the ground or crop canopy.
• 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).
• For all other applications, applicators are required to 
use a medium or coarser droplet size (ASABE S572.1).
• DO NOT apply when wind speeds exceed 10 mph at 
the application site.
• DO NOT apply during temperature inversions or stable 
atmospheric conditions.
Aerial Applications
• DO NOT release spray at a height greater than 10 ft 
above the ground or vegetative canopy, unless a great-
er application height is necessary for pilot safety.
• 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).
• For all other applications, applicators are required to 
use a medium or coarser droplet size (ASABE S572.1).
• DO NOT apply when wind speeds exceed 10 mph at 
the application site. The boom length must be 75% or 
less of the wingspan for fixed wing aircraft and 90% or 
less of the rotor diameter for helicopters.
• Applicators must use 1/2 swath displacement upwind 
at the downwind edge of the field.
• The spray boom must be mounted on the aircraft so 
as to minimize drift caused by wing tip or rotor blade 
vortices.
• Nozzles must be oriented so the spray is directed 
toward the back of the aircraft.
• DO NOT apply during temperature inversions or stable 
atmospheric conditions.
Spray Drift Advisories
The applicator is responsible for avoiding off-site spray 
drift. Be aware of nearby nontarget sites and environmen-
tal 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
 Volume - Increasing the spray volume so that larger drop-
lets 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.
 Pressure - Use the lowest spray pressure recommended 
for the nozzle to produce the target spray volume and 
droplet size.
 Spray Nozzle - Use a spray nozzle that is designed for 
the intended application. Consider using nozzles designed 
to reduce drift.
Controlling Droplet Size - Aircraft
 Adjust Nozzles - Follow nozzle manufacturers recom-
mendations 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.
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. Tem-
perature 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 applica-
tions during temperature inversions.
Wind
 Drift potential generally increases with wind speed. AVOID 
APPLICATIONS DURING GUSTY WIND CONDI-
TIONS. Applicators need to be familiar with local wind 
patterns and terrain that could affect spray drift.
Drift potential is lowest between wind speeds of 2 to 
10 mph. However, many factors, including droplet size and 
equipment type, determine drift potential at any given 
speed. DO NOT make applications when wind speed is 
below 2 mph because of variable wind direction and high 
inversion potential.
Runoff Prevention
To protect the environment, DO NOT allow pesticide to 
enter or run off into storm drains, drainage ditches, gutters 
or surface waters. Applying this product in calm weather 
when rain is not predicted for the next 24 hours will help to 
ensure that wind or rain does not blow or wash pesticide 
off the treatment area. Rinsing application equipment over

8
the treated area will help avoid run off to water bodies or 
drainage systems.
Pollinator Advisory Statement. This product contains 
bentazon, which may adversely impact the forage and 
habitat of local pollinators, including the monarch butterfly 
(and its larvae), birds, or bats if it reaches non-target areas. 
Protect pollinators by following label directions to minimize 
spray drift.
Application Information
Apply Varisto® herbicide postemergence as broadcast, 
band, or spot-spray application when weeds are small or 
actively growing and before they exceed the maximum 
specified size (see Weeds Controlled section).
For best control, apply Varisto at specified rates to active-
ly growing weeds when weeds are small before they reach 
maximum sizes listed in Table 1. Early application produc-
es the most beneficial effect on weed control 
(EXCEPTIONS: yellow nutsedge and Canada thistle) and 
makes thorough spray coverage easier to obtain. Delaying 
application allows weeds to exceed the maximum speci-
fied size and will prevent adequate control.
In general, apply Varisto when weeds are less than 
 3-inches tall and actively growing. Weeds must be 
 thoroughly covered with spray. Dense leaf canopies shelter 
smaller weeds and can prevent adequate spray coverage.
In irrigated areas, it may be necessary to irrigate before 
treatment to ensure active weed growth because weeds 
growing under drought conditions usually are not satisfac-
torily controlled.
An adjuvant (COC, MSO, or NIS) AND a nitrogen fertilizer 
MUST be added to the spray solution for best weed con-
trol, except as indicated in Crop-specific Information 
(refer to requirements and restrictions of adjuvant use for 
specific crops). Refer to the Adjuvants section for specific 
instructions and rates required.
When Varisto is applied postemergence, absorption will 
occur through both roots and foliage. Susceptible weeds 
stop growing and die or are not competitive with the crop. 
Varisto not only controls many existing broadleaf weeds 
and grass weeds when applied postemergence, it is also 
active on susceptible weeds that may emerge shortly after 
application.
Weeds are most easily controlled when actively growing. 
Under cold temperature conditions (less than 40° F maxi-
mum daytime temperature), weed control may be less than 
optimal.
Cleaning Spray Equipment
To avoid injury to sensitive crops, spray equipment used 
for Varisto application must be drained and thoroughly 
cleaned before being used to apply other products. Clean 
application equipment thoroughly by using a strong deter-
gent or commercial sprayer cleaner according to the 
manufacturer’s directions, followed by triple rinsing the 
equipment before and after applying Varisto.
Restrictions and Limitations 
(All Crops)
• DO NOT cultivate within 5 days before applying Varisto 
or within 7 days after application. Timely cultivation after 
7 days may help provide overall weed control, especially 
under dry conditions.
• DO NOT apply more than a total of 2.0 pounds of 
 bentazon ai (from all sources) per acre, per year.
• The minimum retreatment interval between products 
containing bentazon is 7 days.
• DO NOT apply to weeds under stress such as lack of 
moisture, mechanical injury, cold temperatures, hail 
damage, flooding, drought, injury from other herbicides, 
or widely fluctuating temperatures or unsatisfactory con-
trol may result.
• DO NOT apply to crops that show injury (leaf phytotoxic-
ity or plant stunting) produced by any other prior 
herbicide applications because this injury may be 
enhanced or prolonged.
• Rainfast period - Rainfall or overhead irrigation within 
4 hours after application may reduce the effectiveness of 
Varisto.
• DO NOT apply through any type of irrigation system.
• DO NOT tank mix organophosphate insecticide or 
 carbamate insecticide with Varisto unless otherwise 
specified in writing by BASF.
Weeds Controlled
Varisto applied postemergence will control or suppress 
weeds listed in Table 1. 
Table 1. Weeds Controlled and Suppressed
Varisto® herbicide 
(fl ozs/A)
16 21 27
Weed Size 
(inches)
Broadleaf Weeds Controlled
Anoda, spurred — — 3
Artichoke, Jerusalem — — 3 to 8
Balloonvine — — 2
Bedstraw — 3 3
Beet, wild — 3 3
Beggarticks — — 6
Buckwheat, wild — — 3
(continued)

9
Table 1. Weeds Controlled and Suppressed (continued)
Varisto® herbicide 
(fl ozs/A)
16 21 27
Weed Size 
(inches)
Broadleaf Weeds Controlled (continued)
Buttercup — 3 3
Canola, volunteer 
(non-Clearfield
®)
—3 3
Chickweed, common — — 3
Cocklebur, common 4 4 2 to 8
Croton, tropic — — 2
Dayflower — — 4
Devil’s-claw — 4 4
Eclipta — — 2
Flixweed — 3 3
Jimsonweed 4 4 6
Knotweed, prostrate — — 3
Lambsquarters, common 
(east of the Rocky Mountains)
— 1.5 2 to 5
Lambsquarters, common 
(west of the Rocky Mountains)
— — 2 to 5
Lettuce, miner’s — — 3
Mallow, common — 3 3
Mallow, Venice 2 2 1 to 4
Marshelder — — 2 to 4
Mayweed/Dogfennel — — 2
Morningglory, entireleaf — — 3
Morningglory, ivyleaf — — 3
Morningglory, smallflower — — 3
Morningglory, tall — — 3
Mustard, black 3 3 3
Mustard, tumble 3 3 3
Mustard, wild 3 3 3
Nettle, burning — — 2
Nettleleaf goosefoot — 3 3
Nightshade, black 3 3 3
Nightshade, Eastern black 3 3 3
Nightshade, hairy 3 3 3
P e n n y c r e s s , fi e l d 333
Pigweed, prostrate — — 2 to 5
Pigweed, redroot 3 3 4
Pigweed, smooth 3 3 4
P i g w e e d , s p i n y 333
(continued)
Table 1. Weeds Controlled and Suppressed (continued)
Varisto® herbicide 
(fl ozs/A)
16 21 27
Weed Size 
(inches)
Broadleaf Weeds Controlled (continued)
Puncturevine — 3 3
Purslane, common — — 1
Radish, volunteer — — 4
Radish, wild — 3 3
Redweed — — 6
Rocket, London — — 3
Rocket, yellow — — 4
Shepherd’s-purse 3 3 4
Sida, prickly/Teaweed — — 3
Smartweed, ladysthumb 4 4 6
Smartweed, Pennsylvania 4 4 6
Smartweed, swamp — — 3
Spurge, prostrate — — 3
Starbur, bristly — — 2
Sugar beet, volunteer — — 2 to 
4 leaf
Sunflower, wild or volunteer 
(non-Clearfield
®)
3 3 2 to 8
Swinecress — — 3
Tansymustard, green — 3 3
Thistle, Russian — — 3
V e l v e t l e a f 233
Willoweed panicle — — 3
Broadleaf Weeds Suppressed
Amaranth, Palmer 
(ALS-susceptible)
— — 2 to 4
Bindweed, field (seedling) — — 2 to 4
Bindweed, hedge (seedling) — — 2 to 4
B u c k w h e a t , w i l d —3—
Chickweed, common — 3 —
Dandelion — 3 3
Dock, curly — — 3
Flax — 2 2
K n o t w e e d , p r o s t r a t e —3—
Kochia, non-ALS resistant — 3 3
Lambsquarters, common 1 3 —
Lettuce, miner’s — 3 —
Morningglory, cypressvine — — 4
(continued)

10
Table 1. Weeds Controlled and Suppressed (continued)
Varisto® herbicide 
(fl ozs/A)
16 21 27
Weed Size 
(inches)
Broadleaf Weeds Suppressed (continued)
Morningglory, entireleaf — 3 —
Morningglory, ivyleaf — 3 —
Morningglory, pitted — — 2 to 4
Morningglory, smallflower — 3 —
Morningglory, tall — 3 —
Poinsettia, wild — — 4
Purslane, common — 3 —
Ragweed, common 
(ALS-susceptible)
—— 3
Ragweed, giant 
(ALS-susceptible)
—— 3
R o c k e t , L o n d o n —3—
Rocket, yellow — 3 —
Sida, prickly/Teaweed — — 2 to 4
Sowthistle, annual — — 2 to 4
S p u r g e , p r o s t r a t e —3—
Thistle, Canada — — 2 to 5
Grass Weeds and Sedge Controlled
Barley, wild — — 2 to 4
Barnyardgrass — — 3
Blackgrass — 3 3
Brome, California — 3 3
Brome, cheat — 3 3
Brome, downy — 3 3
Brome, Japanese — 3 3
Canarygrass, littleseed — 3 3
Cereals, volunteer barley — 3 3
Cereals, volunteer oat — 3 3
Cereals, volunteer wheat 
(non-Clearfield
®)
—3 3
Corn, volunteer 
(non-Clearfield )
— 2 to 8 2 to 8
Darnel, Persian — 3 3
Foxtail, giant — 3 3
Foxtail, green — 3 3
Foxtail, yellow — 3 3
Goatgrass, jointed — 3 3
Johnsongrass, seedling — — 4 to 8
(continued)
Table 1. Weeds Controlled and Suppressed (continued)
Varisto® herbicide 
(fl ozs/A)
16 21 27
Weed Size 
(inches)
Grass Weeds and Sedge Controlled (continued)
Lovegrass — 3 3
Millet, wild proso — — 3
Nutsedge, yellow — — 8
Oat, wild — 3 3
Panicum, fall — — 2 to 6
Quackgrass, seedling — 3 3
Rye, feral or cereal — — 3
Ryegrass, Italian — 3 3
Shattercane — 3 3
Signalgrass, broadleaf 
(light-to-moderate population 
density only)
— — 2 to 5
Grass Weeds and Sedge Suppressed
B a r n y a r d g r a s s —3—
Crabgrass, large — 3 3
Crabgrass, smooth — 3 3
Cupgrass, woolly — — 2 to 4
Fescue, rattail — 1 1
Goosegrass — — 2 to 4
Johnsongrass, rhizome — 3 3
Nutsedge, purple — 3 3
Nutsedge, yellow — 3 —
Quackgrass, rhizome — 3 3
Stinkgrass — — 2 to 4
Crop-specific Information
Clover Grown for Seed
For use only in Oregon and Washington. For use 
only in fields of clover grown for seed production.
Clover is tolerant to Varisto; however, some leaf burning 
may occur under certain conditions. Clover plants general-
ly outgrow this condition within 10 days.
Application Rate and Timing
Apply Varisto postemergence at 21 fl ozs/A to 27 fl ozs/A 
before clover bloom when clover has a minimum of 
2  trifoliate leaves, and when the majority of weeds are 
1-inch to 3-inches tall. 
An adjuvant and nitrogen fertilizer must be used with 
Varisto on clover. COC, MSO, or NIS may be used. Refer

11
to the Adjuvants section for the recommended adjuvant 
and nitrogen fertilizer. Using COC and MSO with Varisto® 
 herbicide on clover grown for seed may increase injury 
and may reduce yield.
Clover Grown for Seed 
Restrictions and Limitations
• DO NOT make more than one application of Varisto per 
year.
• DO NOT apply more than 27 fl ozs of Varisto/A per year 
to clover grown for seed. 
• DO NOT apply to clover subjected to stress conditions, 
such as hail damage, flooding, drought, injury from other 
herbicides, or widely fluctuating temperatures, or crop 
injury may result. 
• DO NOT graze livestock or harvest forage or hay for live-
stock feed for at least 36 days after treatment.
Dry Beans
DO NOT apply Varisto to dry beans in California.
Varisto may be applied to the following types of dry 
beans:
• Adzuki
• Anasazi
• Black
• Black turtle
• Cranberry
• Faba/fava
• Great Northern
• Lima (dry)
• Navy
• Pink
• Pinto
• Red kidney
• Small red
• Small white
Reduced crop growth and quality; leaf burning, bronzing, 
and speckling; yellowing; delayed maturity; and reduced 
yield may result from application of Varisto to dry bean 
types listed on this label. Because crop maturity may be 
delayed, adjust timing of harvest accordingly. DO NOT 
apply Varisto if planting is delayed and chance of frost 
before maturity is likely. Some dry bean varieties are more 
sensitive to Varisto. Growers should check with the seed 
company regarding the safety of Varisto on their variety. 
Unusually cool temperatures (50° F or less) reduce photo-
synthesis and transpiration and, thus, reduce uptake, 
translocation, and efficacy of Varisto in weeds. Delaying 
application of Varisto for 48 hours from the time tempera-
ture increases to above 50° F, if air temperature has been 
below 50° F for 10 or more hours, improves weed control 
and reduce crop response.
Apply Varisto ONLY if proper agronomic practices have 
been used, including good soil fertility, proper crop rota-
tion, disease and insect management, and tillage practices 
that eliminate compaction and hardpans.
THIS PRODUCT WHEN USED ON DRY BEANS MAY 
LEAD TO CROP INJURY, LOSS, OR DAMAGE. BASF 
RECOMMENDS THAT THE USER AND/OR GROWER 
TEST THIS PRODUCT TO DETERMINE ITS 
 SUITABILITY FOR SUCH INTENDED USE.
Application Rate and Timing
Apply Varisto at 16 fl ozs/A to 21 fl ozs/A before bloom 
stage but after dry beans have at least one fully expanded 
trifoliate leaf. Delay application until the majority of weeds 
are at the specified growth stage. Apply to actively growing 
weeds.
An adjuvant and nitrogen fertilizer must be used with 
Varisto on dry beans. COC, MSO, or NIS may be used. 
Refer to the Adjuvants section for recommended adju-
vant and nitrogen fertilizer. Using COC or MSO with 
Varisto on dry beans may increase injury and reduce 
yield.
Minnesota, Montana, North Dakota, 
South Dakota, and Wyoming
Varisto may be applied at 11 fl ozs/A to aid in the control 
of volunteer canola and mustard species weeds in 
 Minnesota, Montana, North Dakota, South Dakota, and 
Wyoming.
Apply Varisto at 11 fl ozs/A to volunteer canola and mus-
tard species weeds before the bloom stage of dry beans. 
Varisto at 11 fl ozs/A is not intended to be applied as a 
stand-alone product and is intended to be used in tank 
mix combination with 16.8 fl ozs/A of Basagran
® 5L 
 herbicide and a graminicide. Use the appropriate adju-
vant and nitrogen fertilizer for dry beans as recommended 
in Application Rate and Timing .
Dry Beans Restrictions and Limitations
• DO NOT apply Varisto to chickpea (garbanzo 
bean), lupines, or lentil.
• DO NOT apply Varisto to dry beans until the first 
 trifoliate leaf has fully expanded because severe crop 
damage may occur.
• Application of Varisto must be made before dry beans 
bloom.
• DO NOT make more than one application of Varisto per 
year.
• DO NOT apply more than a maximum of 21 fl ozs 
 Varisto/A per year to dry beans.
• DO NOT apply more than 16 fl ozs of Varisto/A per 
year to dry beans grown in Georgia and 
South  Carolina. DO NOT tank mix with additional 
bentazon product.
• DO NOT apply Varisto to dry beans within 30 days of 
harvest.
• Following harvest of furrow-irrigated or flood-irrigated dry 
beans, thoroughly mix soil by plowing or deep disking to 
a minimum of 8 inches to minimize the potential for her-
bicide carryover to the follow crop.

12
Herbicide Combinations
Varisto® herbicide may be applied to dry beans in a tank 
mix or sequential herbicide program including, but not lim-
ited to, the following products:
• Basagran
® 5L herbicide
• Outlook® herbicide
• Poast® herbicide
• Prowl® H2O herbicide (sequential only; not for tank mix)
Dry Peas 
(other than English Pea)
DO NOT apply Varisto to dry peas in California.
Varisto may be applied to the following types of dry peas:
• Dry edible peas (field peas)
• Southern peas (cow peas)
Reduced crop growth and quality; leaf burning, bronzing, 
and speckling; temporary yellowing; delayed maturity; and 
reduced yield may result from application of Varisto to dry 
peas. Because crop maturity may be delayed, adjust tim-
ing of harvest accordingly. DO NOT apply Varisto if 
planting is delayed and chance of frost before maturity is 
likely. Some varieties of dry peas are more sensitive to 
Varisto than other varieties. Growers should check with 
the seed company regarding the safety of Varisto on their 
variety. 
Apply Varisto ONLY if proper agronomic practices have 
been used, including good soil fertility, proper crop rota-
tion, disease and insect management, and tillage practices 
that eliminate compaction and hardpans.
THIS PRODUCT WHEN USED ON DRY PEAS MAY 
LEAD TO CROP INJURY, LOSS, OR DAMAGE. BASF 
RECOMMENDS THAT THE USER AND/OR GROWER 
TEST THIS PRODUCT TO DETERMINE ITS 
 SUITABILITY FOR SUCH INTENDED USE.
Application Rate and Timing
Apply Varisto at 16 fl ozs/A to 21 fl ozs/A to dry peas 
before bloom stage but after dry peas have at least 3 pairs 
of leaves.
Delay application until the majority of weeds are at the 
specified growth stage. Apply to actively growing weeds. 
An adjuvant and nitrogen fertilizer must be used with 
Varisto. COC, MSO, or NIS may be used. Refer to the 
Adjuvants section for the recommended adjuvant and 
nitrogen fertilizer. Using COC or MSO with Varisto on dry 
peas may increase injury and reduce yield.
Minnesota, Montana, North Dakota, 
South Dakota, and Wyoming
Varisto may be applied at 11 fl ozs/A to aid in the control 
of volunteer canola and mustard species weeds in 
 Minnesota. Montana, North Dakota, South Dakota and 
Wyoming.
Apply Varisto at 11 fl ozs/A to mustard species weeds 
before bloom stage of dry peas. Varisto at 11 fl ozs/A is 
not intended to be applied as a stand-alone product and is 
intended to be used in tank mix combination with 4 fl ozs/A 
to 12 fl ozs/A of Basagran 5L and a labeled rate of a gra-
minicide. When applying 11 fl ozs of Varisto/A, MSO may 
be used. When using MSO in dry peas, nitrogen fertilizer is 
optional.
Dry Peas (other than English pea) 
Restrictions and Limitations
• DO NOT apply Varisto to chickpea (garbanzo 
bean), lupines, or lentil.
• DO NOT apply Varisto to dry peas after pea flower 
buds appear or are in bloom.
• DO NOT make more than one application of Varisto per 
year.
• DO NOT apply more than a maximum of 21 fl ozs 
 Varisto/A to dry peas per year. 
• DO NOT apply more than 16 fl ozs of Varisto/A per 
year to dry peas grown in Georgia and 
South  Carolina. DO NOT tank mix with additional 
bentazon product.
• DO NOT use MSO in dry peas when using rates higher 
than 11 fl ozs of Varisto/A.
• DO NOT apply Varisto to dry peas within 30 days of 
harvest.
• DO NOT apply Varisto to dry peas when temperatures 
exceed 90° F.
• In Western regions, avoid applying Varisto to dry peas 
during prolonged periods of cold weather (day tempera-
ture below 75° F and night temperature below 55° F for 
2 to 5 days) because weed control may be reduced.
• Dry peas under stress from root rot may predispose dry 
peas to injury from Varisto.
• Infurrow treatments of insecticides or nematicides may 
also predispose dry peas to injury from Varisto.
Herbicide Combinations
Varisto may be applied to dry peas in a tank mix or 
sequential herbicide program including, but not limited to, 
the following products:
• Basagran 5L
• Poast
• Prowl H2O (sequential only; not for tank mix)
• Sharpen
® powered by Kixor® herbicide (sequential 
only; not for tank mix)

13
English Pea 
(succulent)
DO NOT apply Varisto ® herbicide to English pea 
(succulent) in California.
Reduced crop growth and quality; leaf burning, bronzing, 
and speckling; temporary yellowing; delayed maturity; and 
reduced yield may result from application of Varisto to 
English pea (succulent). Because crop maturity may be 
delayed, adjust timing of harvest accordingly. DO NOT 
apply Varisto if planting is delayed and chance of frost 
before maturity is likely. Some varieties of succulent peas 
are more sensitive to Varisto. Growers should check with 
the seed company regarding the safety of Varisto on their 
 variety. 
Use of trifluralin before application of Varisto may increase 
the likelihood and severity of crop injury. 
Apply Varisto ONLY if proper agronomic practices have 
been used, including good soil fertility, proper crop rota-
tion, disease and insect management, and tillage practices 
that eliminate compaction and hardpans.
THIS PRODUCT WHEN USED ON ENGLISH PEA MAY 
LEAD TO CROP INJURY, LOSS, OR DAMAGE. BASF 
RECOMMENDS THAT THE USER AND/OR GROWER 
TEST THIS PRODUCT TO DETERMINE ITS 
 SUITABILITY FOR SUCH INTENDED USE.
Application Rate and Timing
Apply Varisto at 16 fl ozs/A to English peas at least 
3-inches tall but before 5 nodes before flowering.
An adjuvant must be used with Varisto. COC, MSO or NIS 
may be used. Refer to the Adjuvants section for the rec-
ommended adjuvant. Using COC or MSO with Varisto, 
with or without nitrogen fertilizer on English Peas (succu-
lent) may increase injury and reduce yield.
Use of an adjuvant and nitrogen fertilizer increases weed 
efficacy but also increases the potential for crop injury.
English Pea (succulent) 
Restrictions and Limitations
• DO NOT apply Varisto to English pea after first flower 
bud appears.
• DO NOT make more than one application of Varisto per 
year.
• DO NOT apply more than a maximum of 16 fl ozs 
 Varisto/A per year to English pea (succulent). 
• DO NOT apply Varisto to English pea within 10 days of 
harvest.
• DO NOT apply Varisto to English pea when tempera-
ture exceeds 90° F.
• Avoid applying Varisto to English pea during prolonged 
periods of cold weather (day temperature below 75° F 
and night temperature below 55° F for 2 to 5 days) 
because weed control may be reduced.
• English pea under stress from root rot may predispose 
English pea to injury from Varisto.
• Infurrow treatments of insecticides or nematicides may 
also predispose English pea to injury from Varisto.
Lima Bean 
(succulent)
DO NOT apply Varisto to lima bean (succulent) in 
California.
Occasionally, internode shortening and/or temporary yel-
lowing of crop plants may occur following application of 
Varisto in lima bean. These effects occur infrequently and 
are temporary and can be more pronounced if crops are 
growing under stressful environmental or hot and humid 
conditions. Normal growth and appearance should 
resume within days.
Apply Varisto ONLY if proper agronomic practices have 
been used, including good soil fertility, proper crop rota-
tion, disease and insect management, and tillage practices 
that eliminate compaction and hardpans.
DO NOT tank mix Varisto with any other pesticide for 
applications to lima beans. Certain insecticide and herbi-
cide tank mixes with Varisto in lima bean have shown 
unacceptable crop response.
THIS PRODUCT WHEN USED ON LIMA BEAN 
 (SUCCULENT) MAY LEAD TO CROP INJURY, LOSS, 
OR DAMAGE. BASF RECOMMENDS THAT THE 
USER AND/OR GROWER TEST THIS PRODUCT TO 
 DETERMINE ITS SUITABILITY FOR SUCH INTENDED 
USE.
Application Rate and Timing
Apply Varisto postemergence at 16 fl ozs/A to 21 fl ozs/A 
to lima beans in the first trifoliate to second trifoliate leaf 
stage. Application before the first trifoliate leaf stage may 
result in increased crop response. 
An adjuvant must be used with Varisto. COC, MSO or NIS 
may be used. Refer to the Adjuvants section for the rec-
ommended adjuvant. Using COC or MSO with Varisto, 
with or without nitrogen fertilizer on Lima Beans (succulent) 
may increase injury and reduce yield.
Use of an adjuvant and nitrogen fertilizer increases weed 
efficacy but also increases the potential for crop injury.
Lima Bean (succulent) 
Restrictions and Limitations
• DO NOT apply Varisto to lima bean until at least the first 
trifoliate leaf is fully expanded because severe crop dam-
age may occur.
• DO NOT apply Varisto to lima bean during bloom.
• DO NOT make more than one application of Varisto per 
year.
• DO NOT apply more than a maximum of 21 fl ozs 
 Varisto/A per year to lima bean (succulent).

14
Snap Bean
DO NOT apply Varisto ® herbicide to snap bean in 
California.
Delay application until the majority of weeds are at the 
specified growth stage. Base application timing on weed 
size and crop growth stage. Apply Varisto to crop and 
weeds that are actively growing.
Occasionally, internode shortening and/or temporary yel-
lowing of snap bean may occur following application of 
Varisto. These effects occur infrequently and are tempo-
rary and can be more pronounced if snap beans are 
growing under stressful environmental or hot and humid 
conditions. Normal growth and appearance should 
resume within days.
Apply Varisto ONLY if proper agronomic practices have 
been used, including good soil fertility, proper crop rota-
tion, disease and insect management, and tillage practices 
that eliminate compaction and hardpans.
DO NOT tank mix Varisto with any other pesticide for 
applications to snap bean. Certain insecticide and herbi-
cide tank mixes with Varisto in snap bean have shown 
unacceptable crop response.
THIS PRODUCT WHEN USED ON SNAP BEAN MAY 
LEAD TO CROP INJURY, LOSS, OR DAMAGE. BASF 
RECOMMENDS THAT THE USER AND/OR GROWER 
TEST THIS PRODUCT TO DETERMINE ITS 
 SUITABILITY FOR SUCH INTENDED USE.
Application Rate and Timing
Apply Varisto postemergence at 16 fl ozs/A to 21 fl ozs/A 
to snap bean with at least one fully expanded trifoliate leaf 
and before bloom stage. Idaho, Oregon, and Washing-
ton: Apply Varisto to snap bean at first trifoliate or 
second trifoliate leaf stage.
An adjuvant must be used with Varisto. COC, MSO or NIS 
may be used. Refer to the Adjuvants section for the rec-
ommended adjuvant. Using COC or MSO with Varisto, 
with or without nitrogen fertilizer on Snap Beans may 
increase injury and reduce yield.
Use of an adjuvant and nitrogen fertilizer increases weed 
efficacy but also increases the potential for crop injury.
Snap Bean Restrictions and Limitations
• DO NOT apply Varisto to snap bean until at least the 
first trifoliate leaf is fully expanded because severe crop 
damage may occur.
• Application of Varisto must be made before snap beans 
bloom.
• DO NOT apply to snap beans that have been injured 
from application of soil-applied herbicides.
• DO NOT make more than one application of Varisto per 
year.
• DO NOT apply more than a maximum of 21 fl ozs 
 Varisto/A per year to snap bean. 
• DO NOT apply Varisto to snap bean within 30 days of 
harvest.
Soybean
DO NOT apply Varisto to soybean in California.
Varisto is effective in controlling weeds in conservation 
tillage and conventional soybean production systems. In 
soybean, apply Varisto postemergence but before the 
bloom stage to control existing weeds and provide residual 
activity. 
Soybean is tolerant to Varisto. Slight leaf speckling and 
leaf bronzing may occur under certain conditions, but 
crops generally outgrow these conditions within 10 days.
Unusually cool temperatures (50° F or less) reduce photo-
synthesis and transpiration and, thus, reduce uptake, 
translocation, and efficacy of Varisto in weeds. Delaying 
application of Varisto for 48 hours from the time tempera-
ture increases to above 50° F, if air temperature has been 
below 50° F for 10 or more hours, will improve weed con-
trol and reduce crop response.
Application Rate and Timing
Apply Varisto postemergence at 21 fl ozs/A to 27 fl ozs/A 
after emergence but before crop bloom.
An adjuvant and nitrogen fertilizer must be used with 
Varisto. COC, MSO, or NIS may be used. Refer to the 
Adjuvants section for the recommended adjuvant and 
nitrogen fertilizer.
Varisto at 11 fl ozs/A to aid in the control of volun-
teer canola in North Dakota and Minnesota. Apply 
Varisto to emerged volunteer canola in soybeans before 
soybean bloom stage. Use 11 fl ozs of Varisto/A when 
tank mixed with glyphosate in Roundup Ready ® soy-
bean. Use the appropriate surfactants as recommended 
by the glyphosate label. Varisto will aid in the control of 
volunteer canola from 1-inch to 3-inches tall. 
Varisto will not control Clearfield
® canola.
Soybean Restrictions and Limitations
• Application of Varisto must be made before soybean 
bloom. 
• DO NOT make more than one application of Varisto per 
year.
• DO NOT apply more than a maximum of 27 fl ozs of 
Varisto/A per year to soybean. 
• DO NOT graze or cut treated soybean fields for forage 
or hay for at least 30 days after the last application of 
Varisto.

15
Herbicide Combinations
Varisto® herbicide may be applied to soybean in a tank 
mix or sequential herbicide program including, but not lim-
ited to, the following products:
• Basagran
® 5L herbicide
• Outlook® herbicide
• Poast® herbicide
• Prowl® H2O herbicide (sequential only; not for tank mix)
• Zidua® herbicide
• glyphosate (Roundup Ready ® soybean only)
Rotational Crop Restrictions
Rotational crops may be planted after applying the speci-
fied rate of Varisto in Region 1 and Region 2, as 
indicated on the map.
Region 1 - States and parts of states WEST of US High-
way 83 (Arizona, California, Colorado, Hawaii, Idaho, 
Montana, Nevada, New Mexico, Oregon, Utah, Washing-
ton, Wyoming, and western parts of Kansas, Nebraska, 
North Dakota, Oklahoma, South Dakota, and Texas)
Region 2 - States and parts of states EAST of US High-
way 83 (includes the eastern parts of Kansas, Nebraska, 
North Dakota, Oklahoma, South Dakota, and Texas, and 
the states east of these states)

16
Table 2. Rotational Interval (months) following Varisto ® herbicide Application
Plant-back Interval 
(months)
Region 1 Region 2
Anytime Clearfield ® corn (field and seed)
Clearfield lentil
Clearfield rice
Dry beans and dry peas 
except non-Clearfield lentil
English pea
Lima bean (succulent)
Snap bean
Soybean
Clearfield corn (field and seed)
Clearfield lentil
Clearfield rice
Dry beans and dry peas 
except non- Clearfield lentil
English pea
Lima bean (succulent)
Snap bean
Soybean
1C l e a r fi e l d canola
Clearfield and Clearfield
® Plus sunflower
Clearfield and Clearfield Plus wheat
Edamame
Clearfield canola
Clearfield and Clearfield Plus sunflower
Clearfield and Clearfield Plus wheat
Edamame
3 Alfalfa
1,4 Wheat (non-Clearfield )
Alfalfa
4 Wheat (non-Clearfield )
4 Rye Rye
8-1/2 Corn (non-Clearfield field, seed, sweet, 
and popcorn)
Corn (non-Clearfield field, seed, sweet, 
and popcorn)
9 1 Barley
Cantaloupe
Cotton
Grain sorghum
5 Lentil (non-Clearfield )
Lettuce
Millet
Oat
Onion
Peanut
Pumpkin
Rice
Squash
Sunflower
Tobacco
Watermelon
1 Barley
Broccoli
Cabbage
Cantaloupe
Carrot
Cotton
Cucumber
Grain sorghum
5 Lentil (non-Clearfield )
Lettuce
Millet
Oat
Onion
Peanut
Pepper
1 Potato
Pumpkin
Rice
Squash
Sunflower
Tobacco
Tomato
Turnip
Watermelon
18
1 Barley
Broccoli
Cabbage
Carrot
Cucumber
Lentil (non-Clearfield )
Pepper
Potato
Tomato
Turnip
1 Barley
 Canola (non- Clearfield)
Condiment mustard
Lentil (non-Clearfield )
2 Sugar beet
2 Table beet
All other crops not listed in the 
Rotational Crop Restrictions
All other crops not listed in the 
Rotational Crop Restrictions
26 Canola 
(non-Clearfield )
Condiment mustard
3 Sugar beet
Table beet
2 Sugar beet
2 Table beet
1 Refer to the following tables for rotational intervals for planting following application of Varisto.
2 In Region 2, sugar beet and table beet can be planted 18 months following an application of Varisto if the soil pH is uniformly 6.2 or greater. If 
the soil pH is less than 6.2, the rotational interval is 26 months. Sugar beet yield can be reduced when grown in soil conditio ns with a pH less 
than 6.2. If the soil is limed to adjust the soil pH, apply the lime at least 18 months before planting sugar beet or other rot ational crops under the 
18-month rotational interval.
3 For sugar beet grown in parts of Nebraska west of Highway 83, and Platte, Goshen, and Laramie counties in Wyoming, follow the s ugar beet 
rotational crop restrictions for Region 2 for sprinkler-irrigated fields only. If fields are dryland, flood or furrow irrigated, follow restrictions for 
Region 1. A minimum of 10 inches of overhead irrigation must be applied each season to qualify for Region 2 guidelines.
4 Planting non-Clearfield spring or winter wheat in areas receiving less than 10 inches of precipitation from the time of Varisto application up until 
wheat planting may result in wheat injury. The possibility of injury increases if less than normal precipitation occurs from th e time of application to 
planting and/or within the first 2 months after Varisto application.
5 In Region 1 and Region 2, non-Clearfield lentil may be planted 9 months following an application of Varisto if no more than 27 fl ozs/A of 
Varisto has been applied and the soil pH is uniformly greater than 6.2.
(continued)

17
Table 2. Rotational Interval (months) following Varisto ® herbicide Application (continued)
Barley Rotational Interval based on pH, Moisture, and Tillage Moldboard Plowing
Region 1 and Region 2 NO YES
pH and Rainfall requirements
>18 inches R+I AND pH >6.2 9 months
<18 inches R+I OR pH <6.2 18 months 9 months
Potato Rotational Interval based on pH and Moisture
Region 2
pH and Rainfall requirements
>18 inches R+I AND pH >6.2 9 months
<18 inches R+I OR pH <6.2 18 months
Non-Clearfield ® Wheat Rotational Interval based on pH, Moisture, and Tillage Moldboard Plowing
Region 1 NO YES
pH and Rainfall requirements
>10 inches R+I AND pH >6.2 3 months
<10 inches R+I OR pH <6.2 15 months 3 months
Non-Clearfield Wheat Rotational Interval based on pH and Moisture
Washington and selected counties in Idaho* and Oregon**
pH and Rainfall requirements
>16 inches R+I AND pH >6.2 3 months
<16 inches R+I OR pH <6.2 15 months
 * Selected counties in Idaho - Benewah, Bonner, Boundary, Clearwater, Idaho, Kootenai, Latah, Lewis, Nez Perce, and Shoshone
** Selected counties in Oregon - All but Malheur
When taking soil samples to determine soil pH, use a grid sampling technique, sampling to a depth of 3 to 4 inches.
R+I = Rainfall and overhead irrigation from the time of Varisto application up until time of barley, potato, or 
non-Clearfield wheat planting. Does not include furrow or flood irrigation.
If the rainfall or pH requirements are not fully met, and barley or non- Clearfield wheat is planted before the specified 
rotation interval, injury may be reduced by tillage, such as deep disking (greater than 6-inches deep) after crop harvest 
but before November 1.
The possibility of injury to barley or non- Clearfield wheat planted the next season increases if less than normal pre-
cipitation occurs from the time of application to planting and/or within the first two months after 
application of Varisto .
Furrow-irrigated and Flood-irrigated Crops
Following harvest of furrow-irrigated or flood-irrigated crops, thoroughly mix soil by plowing or deep disking to a mini-
mum of 8 inches to minimize the potential for herbicide carryover to the following crop.
Failure to irrigate every furrow can increase rotational crop injury potential.
Use of Varisto in accordance with label directions is expected to result in normal growth of rotational crops in most situ-
ations; however, various environmental and agronomic factors, such as arid conditions, make it impossible to eliminate 
all risks associated with the use of this product and, therefore, rotational crop injury is always possible.
CROP INJURY PRECAUTIONS
In the event of a crop loss due to weather, Clearfield corn, Clearfield lentil, Clearfield rice, dry beans, dry peas, 
lima bean (succulent), pea (English), snap bean, or soybean can be replanted. DO NOT make an additional application 
of Varisto.
Application of products containing chlorimuron ethyl ( Canopy® herbicide), metsulfuron-methyl (Harmony® Extra 
herbicide), imazamox (Beyond® herbicide, Raptor® herbicide), imazaquin (Scepter® 70 DG herbicide), or 
imazethapyr (Pursuit® herbicide, Pursuit® Plus EC herbicide ) the same year as Varisto may increase the risk of 
injury to sensitive rotational crops. Consult all pertinent labels for use of these products in combinations.
If arid conditions occur during the year of application, rotational crop injury may occur.

18
Conditions of Sale and Warranty
The Directions For Use of this product reflect the 
 opinion of experts based on field use and tests. The 
 directions are believed to be reliable and must be 
followed carefully. However, 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 
weather conditions, presence of other materials, or use 
of the product in a manner inconsistent with its labeling, 
all of which are beyond the control of BASF 
CORPORATION (“BASF”) or the Seller. To the extent 
consistent with applicable law, all such risks shall be 
assumed by the Buyer.
BASF warrants that this product conforms to the 
chemical description on the label and is reasonably fit for 
the purposes referred to in the Directions For Use , 
subject to the inherent risks, referred to above.
TO THE EXTENT CONSISTENT WITH APPLICABLE 
LAW, BASF MAKES NO OTHER EXPRESS OR 
IMPLIED WARRANTY OF FITNESS OR 
 MERCHANTABILITY OR ANY OTHER EXPRESS OR 
IMPLIED WARRANTY.
TO THE EXTENT CONSISTENT WITH APPLICABLE 
LAW, BUYER’S EXCLUSIVE REMEDY AND BASF’S 
EXCLUSIVE LIABILITY, WHETHER IN CONTRACT, 
TORT, NEGLIGENCE, STRICT LIABILITY, OR 
 OTHERWISE, SHALL BE LIMITED TO REPAYMENT 
OF THE PURCHASE PRICE OF THE PRODUCT.
TO THE EXTENT CONSISTENT WITH APPLICABLE 
LAW, BASF AND THE SELLER DISCLAIM ANY 
 LIABILITY FOR CONSEQUENTIAL, EXEMPLARY, 
SPECIAL OR INDIRECT DAMAGES RESULTING 
FROM THE USE OR HANDLING OF THIS 
PRODUCT.
BASF and the Seller offer this product, and the Buyer 
and User accept it, subject to the foregoing Conditions 
of Sale and Warranty which may be varied only by 
 agreement in writing signed by a duly authorized 
representative of BASF. 
1108
Uses with Other Products 
(Tank Mixes)
If this product is used in combination with any other prod-
uct except as specifically instructed in writing by BASF, 
then to the extent consistent with applicable law, BASF 
shall have no liability for any loss, damage or injury arising 
out of its use in any such combination not so specifically 
specified. 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.
© 2021 BASF Corporation
All rights reserved.
000241-00447 .20200415d.NVA 2020-04-480-0078
Supersedes: NVA 2016-04-480-0156
BASF Corporation
26 Davis Drive
Research Triangle Park, NC 27709
Basagran, Beyond, Clearfield, Kixor, Outlook, Poast, 
Prowl, Pursuit, Raptor, Scepter, Sharpen, Varisto, and 
Zidua are registered trademarks of BASF.
Canopy and Harmony are registered trademarks of 
E.I. duPont de Nemours and Co., Inc.
Roundup Ready is a registered trademark of Monsanto.