DuPont™ Krovar® I DF herbicide TABLE OF CONTENTS
ACTIVE INGREDIENT . . . . . . . . . . . . . . . . . . . . . . . . . . .1
STORAGE AND DISPOSAL . . . . . . . . . . . . . . . . . . . . . . .8
PRECAUTIONARY STATEMENTS . . . . . . . . . . . . . . . . .1
NOTICE TO BUYER . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
First Aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
LIMITATION OF WARRANTY AND LIABILITY . . . .10
Hazards to Humans and Domestic Animals . . . . . . . . . . .1
Personal Protective Equipment . . . . . . . . . . . . . . . . . . . . .1
Engineering Control Statement . . . . . . . . . . . . . . . . . . . .1
User Safety Recommendations . . . . . . . . . . . . . . . . . . . . .1
Environmental Hazards . . . . . . . . . . . . . . . . . . . . . . . . . .2
PRODUCT INFORMATION . . . . . . . . . . . . . . . . . . . . . . .2
Use Precautions and Restrictions . . . . . . . . . . . . . . . . . . .2
Crop Rotation Bioassay . . . . . . . . . . . . . . . . . . . . . . . . . .2
Spray Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Spray Tank Clean Out . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Integrated Pest Management . . . . . . . . . . . . . . . . . . . . . .3
DIRECTIONS FOR USE . . . . . . . . . . . . . . . . . . . . . . . . . . .3
AGRICULTURAL USES . . . . . . . . . . . . . . . . . . . . . . . . . .3
Agricultural Use Requirements . . . . . . . . . . . . . . . . . . . .3
APPLICATION INFORMATION . . . . . . . . . . . . . . . . . . .3
TANK MIXTURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
WEEDS CONTROLLED . . . . . . . . . . . . . . . . . . . . . . . . . .4
CITRUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
California, Arizona . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Florida . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Louisiana . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Texas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
NON-AGRICULTURAL USES . . . . . . . . . . . . . . . . . . . . .5
Non-Agricultural Use Requirements . . . . . . . . . . . . . . . .5
USE RESTRICTIONS - STATE OF FLORIDA . . . . . . . . .5
APPLICATION INFORMATION . . . . . . . . . . . . . . . . . . .5
NON-CROP WEED CONTROL . . . . . . . . . . . . . . . . . . . . .6
Application Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Application Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Weeds Controlled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Retreating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Small Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Tank Mixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
SPECIAL USES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Under Asphalt and Concrete Pavement . . . . . . . . . . . . . .7
Application Information . . . . . . . . . . . . . . . . . . . . . . . .7
Application Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Application Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Tank Mixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Important Precautions - Under Asphalt Only . . . . . . . .7
SPRAY DRIFT MANAGEMENT . . . . . . . . . . . . . . . . . . .7
PRECAUTIONARY STATEMENTS HAZARDS TO HUMANS AND DOMESTIC ANIMALS DuPont™ CAUTION: Harmful if swallowed or if absorbed through skin. Causes moderate eye irritation. Avoid contact with eyes, skin, or clothing. PERSONAL PROTECTIVE EQUIPMENT Krovar® I DF
Some of the materials that are chemical-resistant to thisproduct are listed below. If you want more options, followthe instructions for category A on an EPA chemical-
herbicide
resistant category selection chart. Pilots, flaggers and groundboom applicators must Dispersible Granules wear: - Long-sleeved shirt and long pants By Weight Active Ingredients
In addition to the above PPE, groundboom applicators
must also wear: chemical-resistant gloves made of any
waterproof material such as polyethylene or polyvinylchloride. Mixers, loaders, other applicators, and other handlers
[3-(3,4-dichlorophenyl)-1,1-dimethylurea] 40%
must wear: Other Ingredients
- Chemical resistant gloves made of any waterproof
Nonrefillable Container
material such as polyethylene or polyvinylchloride.
- A NIOSH approved dust/mist filtering respirator with
any N, R, P, or HE filter or with approval number prefix
Refillable Container
- Chemical resistant apron when mixing, loading, or
Follow manufacturer's instructions forcleaning/maintaining PPE. If no such instructions forwashables exist, use detergent and hot water. Keep and
KEEP OUT OF REACH OF CHILDREN
wash PPE separately from other laundry.
See 'Engineering Control Statement' for additional
Si usted no entiende la etiqueta, busque a alguien para que
ENGINEERING CONTROL STATEMENT
se la explique a usted en detalle. (If you do not understand
When handlers use closed systems, enclosed cabs or
this label, find someone to explain it to you in detail.)
aircraft in a manner that meets the requirements listed in
FIRST AID
the Worker Protection Standard (WPS) for agricultural
IF ON SKIN OR CLOTHING: Take off contaminated
pesticides [40 CFR 170.240 (d)(4-6)], the handler PPE
clothing. Rinse skin immediately with plenty of water for
requirements may be reduced or modified as specified in
15-20 minutes. Call a poison control center or doctor for
Pilots must use an enclosed cockpit that meets the
IF IN EYES:
requirements listed in the Worker Protection Standard
Hold eye open and rinse slowly and gently
(WPS) for agricultural pesticides [40 CFR 170.240(d)(6)].
with water for 15-20 minutes. Remove contact lenses, ifpresent, after the first 5 minutes, then continue rinsing eye.
Flaggers supporting aerial applications must use an
Call a poison control center or doctor for treatment advice.
enclosed cab that meets the definition in the WorkerProtection Standard (WPS) for agricultural pesticides [40
IF INHALED: Move person to fresh air. If person is not
CFR 170.240(d)(5)] for dermal protection.
breathing, call 911 or an ambulance, then give artificialrespiration, preferably mouth-to-mouth, if possible. Call a
USER SAFETY RECOMMENDATIONS
poison control center or doctor for further treatment
Users should: Wash hands thoroughly with soap and
water after handling and before eating, drinking,
IF SWALLOWED: Call a poison control center or doctor
chewing gum, using tobacco, or using the toilet.
immediately for treatment advice. Have person sip a glass
Remove clothing/PPE immediately if pesticide gets
of water if able to swallow. Do not induce vomiting unless
inside. Then wash thoroughly and put on clean
told to do so by the poison control center or doctor. Do not
give anything by mouth to an unconscious person.
Remove PPE immediately after handling this product.
Have the product container or label with you when calling
Wash the outside of gloves before removing. As soon
a poison control center or doctor, or going for treatment.
as possible, wash thoroughly and change into cleanclothing.
For medical emergencies involving this product, call tollfree 1-800-441-3637.
Dilute and agitate excess spray solution and apply at labeled
ENVIRONMENTAL HAZARDS
Do not apply directly to water, or to areas where
CROP ROTATION BIOASSAY
surface water is present, or to intertidal areas below
In sites where KROVAR® I DF has been used, a field bioassay
the mean high water mark. Do not contaminate water
should be completed prior to planting any desired crop. In arid
when cleaning equipment or disposing of equipmentwashwaters or rinsate.
climates (10 inches of rainfall or less) or areas where drought
Bromacil is known to leach through soil and has been
conditions have prevailed for one or more years, a field
found in ground water as a result of normal field use.
bioassay must be completed prior to planting any desired crop.
Users are advised not to apply in areas where soils are
A successful field bioassay means growing to maturity a test
permeable, particularly where ground water is used for
strip of the crop(s) intended for production. The test strip
drinking water. Consult with the pesticide state lead
should cross the entire field including knolls and low areas.
agency for information regarding soil permeability andaquifer vulnerability in your area.
The results from the bioassay may require the two-year croprotation interval to be extended. PRODUCT INFORMATION SPRAY PREPARATION
DuPont™ KROVAR® I DF is a dispersible granule to be
Mixing in water - Fill tank 1/2 full with water. Start
mixed in water and applied as a spray for selective control of
agitation system, add KROVAR® I DF and continue adding
weeds in citrus and for non-crop weed control.
water. Add separately each additional component of any
KROVAR® I DF controls many annual weeds and, at the
tank-mix while adding water. Continue agitation throughout.
highest rates allowed by this label, it controls certain perennial
Mixing in liquid fertilizer - A fertilizer solution may be
used in the spray mixture. Small quantities should be tested
Moisture is necessary to move the herbicide into the root zone
for compatibility by the following procedures before full
of weeds. Best results are obtained if treatment is made to
moist soil, and moisture is supplied by rainfall or sprinkler
1. Put 1 pint fertilizer solution in a quart jar.
irrigation within two weeks after application. Weed control
2. Mix 2 teaspoonfuls KROVAR® I DF with 2 tablespoons
symptoms are slow to appear and may not become apparent
of water; mix thoroughly and add to fertilizer solution.
until the herbicide has been carried into the root zone of theweeds by moisture. The degree and duration of control will
vary with the amount of herbicide applied, soil texture, rainfall,
4. If other herbicides are used in the mixture, premix 2
and other soil and water management practices.
teaspoons of dry materials or 1 teaspoon of liquids with 2tablespoons of water; add to KROVAR® I DF-fertilizer
USE PRECAUTIONS AND RESTRICTIONS
KROVAR® I DF is not to be used in any recreational areas
6. Watch mixture for several seconds; check again in 30
Injury to or loss of desirable trees or other plants may result
7. If mixture does not separate, foam, gel or become lumpy,
Do not apply (except as recommended for crop use), or drain
or flush equipment on or near desirable trees or other plants,or on areas where their roots may extend, or in locations
Provided the above procedure shows the mixture to be
where the chemical may be washed or moved into contact
compatible, prepare the tank mixture as follows: Add the
with their roots. Do not use on lawns, walks, driveways,
fertilizer solution to the spray tank first; with agitator
tennis courts or similar areas. Do not use in home fruit
running, add the required amount of KROVAR® I DF and
plantings nor in citrus orchards interplanted to other trees or
desirable plants. Prevent drift of dry powder or spray to
Mixing with other herbicides - Determine the tank mixture
desirable plants. Keep from contact with fertilizers,
partner(s) compatibility with KROVAR® I DF by following
the directions above. For Step 1 above, use 1 pint of water
Do not apply this product through any type of irrigation
instead of the liquid fertilizer. Provided the above procedure
shows the mixture to be compatible, KROVAR® I DF may
Treated areas may be planted to citrus trees one year after
SPRAY TANK CLEAN OUT
last application. Do not replant to other crops within twoyears after last application as injury may result.
Thoroughly clean all traces of DuPont™ KROVAR® I DF
NOTE: Additional Precautions
from application equipment immediately after use. Flush the
Avoid storage of pesticides near well sites.
tank, pump, hoses, and boom with several changes of water
Calibrate sprayers only with clean water away from the well
after removing nozzle tips and screens (clean these parts
separately). Dispose of the equipment wash water by
Measure out only enough KROVAR® I DF for the job at
applying it to a use-site listed on this label.
hand. Avoid over-filling the spray tank. Do not discharge excess material as a point source. RESISTANCE AGRICULTURAL USES
When herbicides that affect the same biological site of actionare used repeatedly over several years to control the same
AGRICULTURAL USE REQUIREMENTS
weed species in the same field, naturally-occurring resistant
Use this product only in accordance with its labeling and
biotypes may survive a correctly applied herbicide treatment,
with the Worker Protection Standard, 40 CFR part 170.
propagate, and become dominant in that field. Adequate
This Standard contains requirements for the protection of
control of these resistant weed biotypes cannot be expected.
agricultural workers on farms, forests, nurseries, andgreenhouses, and handlers of agricultural pesticides. It
If weed control is unsatisfactory, it may be necessary to
contains requirements for training, decontamination,
retreat the problem area using a product affecting a different
notification, and emergency assistance. It also contains
specific instructions and exceptions pertaining to the
To better manage herbicide resistance through delaying the
statements on this label about personal protectiveequipment(PPE) and restricted-entry interval. The
proliferation and possible dominance of herbicide resistant
requirements in this box only apply to uses of this
weed biotypes, it may be necessary to change cultural
product that are covered by the Worker Protection
practices within and between crop seasons such as using a
combination of tillage, retreatment, tank-mix partners and/or
Do not enter or allow worker entry into treated areas
sequential herbicide applications that have a different site of
during the restricted entry interval (REI) of 12 hours.
action. Weed escapes that are allowed to go to seed will
PPE required for early entry to treated areas that is
promote the spread of resistant biotypes.
permitted under the Worker Protection Standard and that
It is advisable to keep accurate records of pesticides applied
involves contact with anything that has been treated, suchas plants, soil, or water, is:
to individual fields to help obtain information on the spread
and dispersal of resistant biotypes. Consult your agricultural
Chemical Resistant Gloves made of any Waterproof
dealer, consultant, applicator, and/or appropriate state
agricultural extension service representative for specific
alternative cultural practices or herbicide recommendationsavailable in your area. APPLICATION INFORMATION INTEGRATED PEST MANAGEMENT
Apply KROVAR® I DF with a properly calibrated fixed-boom
This product may be used as part of an Integrated Pest
power sprayer as a band or broadcast treatment. Apply any
Management (IPM) program that can include biological,
time of year provided overhead moisture (rainfall or sprinkler
cultural, and genetic practices aimed at preventing economic
irrigation) is available to activate the herbicide, preferably just
pest damage. IPM principles and practices include field
before or just after weeds have germinated.
scouting or other detection methods, correct target pestidentification, population monitoring, and treating when
All use rates of KROVAR® I DF are expressed for broadcast
target pest populations reach locally determined action
treatments. For band treatments, use proportionately less.
thresholds. Consult your state cooperative extension service,
Use sufficient spray volume (minimum of 10 gallons per acre)
professional consultants or other qualified authorities to
to provide uniform coverage of the treated area and to allow
determine appropriate action treatment threshold levels for
proper dispersion and suspension of the product in the spray
treating specific pest/crop systems in your area.
tank. Continuous agitation in the spray tank is required to keep
DIRECTIONS FOR USE
the product in suspension. Agitate spray tank contents bymechanical or hydraulic means. If a by-pass or return line is
It is a violation of federal law to use this product in a manner
used, it should terminate at a bottom of tank to minimize
inconsistent with its labeling. DuPont™ KROVAR® I DF
herbicide must only be used in accordance with instructions on
Best results are obtained if KROVAR® I DF is applied to bare
this label. For any requirements specific to your State or Tribe,
ground. If weeds are present at application, tank mixtures with
consult the agency responsible for pesticide regulation.
foliar active herbicides are recommended (see Tank Mixtures
Do not apply this product in a way that will contact workers
section of label). If dense populations of hard-to-kill weed
or other persons, either directly or through drift. Only
species are present, control of these weeds prior to application
protected handlers may be in the area during application.
Use of this product in certain portions of California, Oregon,
TANK MIXTURES
and Washington is subject to the January 22, 2004 Order forinjunctive relief in Washington Toxics Coalition et al vs EPA,
KROVAR® I DF may be tank mixed with other suitable
Co1-132C (W.D. W.A.). For information, please refer to
herbicides registered for use in citrus. Refer to the tank mixture
partner label(s) for any additional use information orrestrictions. Follow the label guidelines that are the mostrestrictive.
KROVAR® I DF may also be tank mixed with appropriateadjuvants used with herbicides in citrus.
NOTE: If there is no prior use experience with the tankmixture combination, a compatibility test should be performedprior to adding the products into the spray tank. See SPRAYPREPARATION section of the label for further information.
When using DuPont™ KROVAR® I DF alone or in
Do not use in citrus groves inter-planted with other trees or
combination, thoroughly re-agitate the spray tank contents if
desirable plants or in areas where roots of desirable plants or
WEEDS CONTROLLED
For all states listed below, when making multiple applications,
do not apply at less than 60 day intervals to trees less than 4
years old and 80 days to trees 4 years old or greater. A
maximum of two applications of product per year is allowed.
Thoroughly clean all traces of KROVAR® I DF from
application equipment immediately after use. Flush tank,
pump, hoses and boom with several changes of water after
removing nozzle tips and screens (clean these parts
CALIFORNIA, ARIZONA Trees Established for at least Three Years:
occur when applied in late fall or early winter, but before
winter annuals become well established. Application should be
made after the first fall or early winter rains have settled the
For the initial treatment, apply 4-5 pounds KROVAR® I DF
per acre on coarse soils containing 1-2% organic matter and 5-
6 pounds per acre on fine soils, or soils with organic matter of
2 1/2% or more. Alternatively, apply 3-4 pounds per acre in the
fall and repeat at 2-4 pounds per acre in the spring. Do not
Use the highest rate allowed by this label where groundsel or
puncturevine are known to be a problem. These rates will also
suppress low density stands of bermudagrass and yellow
nutsedge. Repeat annually for best treatment effect. Perennials (At maximum rates and repeat treatments) USE RESTRICTIONS
The use of KROVAR® I DF (bromacil + diuron) is
prohibited for weed control in non-bedded citrus groves
located on any permeable, better drained soil identified in the
intended site of application. Permeable, better drained soils
NOTE: Use the highest rates allowed by this label for best
which occur in citrus producing areas of the state include
control of perennial weeds listed on this label. Partial control
soils unnamed and characteristic of quartzipsamments, and
of perennial weeds can result with only a single treatment of
the following soil series classifications:
KROVAR® I DF. Repeat applications are required (in
season and/or annually) for best control of the perennial
weeds on this label. Control of perennials may be improved
by cultivation prior to treatment, otherwise, avoid working
the soil as long as weed control continues or else
effectiveness of the treatment may be reduced.
Apply KROVAR® I DF as a band or broadcast treatment
APPLICATION INSTRUCTIONS
beneath and/or between trees. Aerial application is prohibitedin citrus.
Apply KROVAR® I DF as a band treatment only using a properly calibrated fixed-boom power sprayer. Do not use
Avoid contact of citrus foliage and fruit with spray or mist. Trunk to Trunk. All use rates of KROVAR® I DF are
Avoid overlapping and shut off spray boom while starting,
expressed for broadcast treatments. For band treatments, use
turning, slowing or stopping as injury to trees may result.
Temporary yellowing of citrus leaves may occur following
Use sufficient spray volume (minimum of 10 gallons per
treatment. As injury to citrus trees may result, do not use on
acre) to provide uniform coverage of the treated area and to
soils with less than 1% organic matter. Do not use on poorly
allow proper dispersion and suspension of the product in the
drained soils, gravelly soils or thinly covered or exposed sub-
spray tank. Continuous agitation in the spray tank is required
Do not treat trees planted in irrigation furrows. Do not treat
Do not apply more than 16 pounds of KROVAR® I DF per
treated acre per year. This amount corresponds to 6.4 poundsof bromacil and 6.4 pounds of diuron, the active ingredientsin KROVAR® I DF .
The maximum allowable use rate for bromacil is 6.4 pounds
NON-AGRICULTURAL USES
per treated acre per year inclusive of all bromacilformulations. The maximum allowable use rate for diuron is
NON-AGRICULTURAL USE
6.4 pounds per treated acre per year inclusive of all diuron
REQUIREMENTS
formulations. Multiple applications may improve control of “hard-to-kill”
The requirements in this box apply to uses of this
product that are NOT within the scope of the Worker
Trees Established Less Than One Year: For control of
Protection Standard for agricultural pesticides (40 CFR
annual weeds, apply 2-4 pounds of DuPont™ KROVAR® I
Part170). The WPS applies when this product is used
DF per treated acre to maintain weed control. Do not apply
to produce agricultural plants on farms, forests,
more than 6 pounds per treated acre during any 6 month
period nor more than 8 pounds per treated acre during the
Noncrop weed control is not within the scope of the
Trees Established One to Three Years: For control of
Do not enter or allow others to enter the treated area
annual weeds, apply 2-4 pounds of KROVAR® I DF per
treated acre. A second application may be made whenneeded to maintain weed control, but do not exceed 8 pounds
USE RESTRICTIONS - STATE OF FLORIDA
per treated acre per year. Trees Established Three or More Years: Apply 4-8
In the state of Florida the use of KROVAR® I DF (bromacil
pounds per treated acre to maintain weed control. Do not
+ diuron) is prohibited in the counties of Hardee, Highland,
apply more than 16 pounds of KROVAR® I DF per treated
Polk, Orange and Lake. For Non-Agricultural Usage in all
other areas of the state, do not apply more than 16 pounds
LOUISIANA
per acre per year of KROVAR® I DF. This amountcorresponds to 6.4 pounds of bromacil and 6.4 pounds of
Trees Established for at least Three Years: Make a single
diuron, the active ingredients in KROVAR® I DF. The
application of 2 to 4 pounds per acre on coarser soils (sands,
maximum allowable use rate for bromacil is 6.4 pounds per
loamy sands, sandy loams) and 4 to 6 pounds per acre on finer
acre per year inclusive of all bromacil formulations.
soils (silt loams, clay loams, or soils with organic matter of 21/2% or more); use the highest rate allowed by this label for
APPLICATION INFORMATION
maximum suppression of perennials. Alternatively, make two
KROVAR® I DF is recommended for general weed control
applications per year at rates of 2 pounds per acre on coarser
as follows: uncultivated non-agricultural areas (such as,
soils and 3 pounds per acre on finer soils; make the second
airports, highway, railroad and utility rights-of-way, sewage
application when needed to maintain weed control. Do not
disposal areas); uncultivated agricultural areas (non-crop
apply more than 6 pounds per acre per year.
producing, which includes: farmyards, fuel storage areas,
fence rows, barrier strips); industrial sites (outdoor, such as,
Trees Established Less than One Year:
KROVAR® I DF per acre to maintain weed control. Do not
Apply KROVAR® I DF using a properly calibrated fixed-
apply at less than 60-day intervals. Do not apply more than 6
boom power sprayer. Use sufficient spray volume (minimum
of 10 gallons per acre) to provide uniform coverage of the
Trees Established One or Two Years:
treated area and to allow proper dispersion and suspension of
the product in the spray tank. All rates of KROVAR® I DF
KROVAR® I DF per acre. A second application may be made
are expressed for broadcast treatments. For band treatments,
when needed to maintain weed control, but do not exceed 6
pounds per acre per year. Trees Established Three or More Years: Make one to two
A maximum of 12 pounds active ingredient bromacil per
applications per year to maintain weed control. Use 2-4 pounds
acre per year is allowed. A maximum of 12 pounds active
per acre on coarser soils (sands, loamy sands, sandy loams)
ingredient diuron is allowed per acre per year in areas of high
and 4-6 pounds per acre on finer soils (silt loams, clay loams,
rainfall or dense vegetation. A maximum of 8 pounds of
or soils with organic matter of 2 1/2 % or more). Use the
active ingredient diuron is allowed in all other areas. Apply
higher rate for maximum suppression of perennials. Do not
a maximum of two applications per year. The minimum
use more than 6 pounds per acre per year.
Combination with other herbicides broadens the spectrum of weeds controlled. In addition, total vegetation control can be achieved with higher rates of KROVAR® I DF plus residual- type companion herbicides. To improve the control of emerged weeds, add surfactant at 0.25% by volume. Note: Applications may also be made using a handgun sprayer. Use a spray volume of at least 40 gallons per acre to insure uniform coverage. For small areas, a hand sprayer or sprinkling may be used. NON-CROP WEED CONTROL Broadleaf Weeds--12-16 pounds per acre APPLICATION TIMING
Apply DuPont™ KROVAR® I DF as a preemergence spray
prior to or during the rainy season when weeds are actively
Grasses--6-8 pounds per acre
germinating or growing. Moisture is required to activate and
move KROVAR® I DF into the root zone of weeds for
preemergence control. For best preemergence control, apply
prior to rainfall and weed germination.
In arid regions of the Western U.S., to insure adequate
moisture for activation and even dispersion of the herbicide in
the soil profile, KROVAR® I DF should be applied several
weeks prior to the Fall freeze or shortly after Spring thaw to
Grasses--8-12 pounds per acre
coincide with periods of higher seasonal moisture probability.
Do not treat frozen or saturated soils, or soils that are non-
Do not apply to sites which have roots of desirable plants
growing into the treatment zone as plant injury or death may
Grasses--12-16 pounds per acre
occur. Do not apply to hard or impervious soils, water
saturated soils or to any surface that does not allow the
herbicide to be moved into the soil horizon with moisture.
Unusually heavy rainfall shortly after application may move
*Note: Best control of Saltgrass and Sand Dropseed is
the product off-target to the lowest surrounding point and
achieved from a Spring application prior to plant green-up.
For control of hard-to-kill perennials such as bermudagrass
If herbicide treated soil is disturbed by any physical or
(Cynodon dactylon), bouncingbet (Saporaria officinalis),
mechanical means, the herbicide barrier is disrupted and the
dogbane (Apocynum spp.), Johnsongrass (Sorghum
likelihood of non-performance may increase. For best
halepense), and nutsedge (Cyperus spp.) apply 19 - 30 pounds
performance results, make sure the treatment area is stable
after the application for the desired weed control period.
For extended control of annual weeds and partial control of
APPLICATION RATES
perennials such as bermudagrass and nutsedge, apply 10-18
Apply KROVAR® I DF at the rates indicated by weed type.
pounds* per acre. Use the higher KROVAR® I DF rates on
When applied at lower rates, KROVAR® I DF provides short-
adsorptive soils (high in organic matter or carbon). Best results
term control of weeds listed; when applied at higher rates,
occur when application is made just before weed emergence or
WEEDS CONTROLLED Retreating: Apply 4 to 6 pounds per acre when annual weeds
KROVAR® I DF effectively controls the following broadleaf
and grasses reappear on sites where weed growth has been
weeds and grasses when applied at the rates shown. Broadleaf Weeds--6-8 pounds per acre Small Areas: 1/4 cupful of KROVAR® I DF per 200 sq. ft. is TANK MIXTURES
KROVAR® I DF may be tank mixed with other suitable
herbicides registered for non-agricultural use. Refer to the tank
mixture partner label(s) for any additional use information or
restrictions. Follow the label guidelines that are the most
KROVAR® I DF may also be tank mixed with appropriate
Broadleaf Weeds--8-12 pounds per acre
adjuvants used with herbicides for non-agricultural use.
NOTE: If there is no prior use experience with the tank
mixture combination, a compatibility test should be performed
prior to adding the products into the spray tank. See SPRAY
PREPARATION section of the label for further information.
When using KROVAR® I DF alone or in combination,
thoroughly re-agitate the spray tank contents if allowed to
SPECIAL USES CONTROLLING DROPLET SIZE - GENERAL TECHNIQUES UNDER ASPHALT AND CONCRETE PAVEMENT
• Volume - Use high flow rate nozzles to apply the highest APPLICATION INFORMATION
practical spray volume. Nozzles with higher rated flowsproduce larger droplets.
DuPont™ KROVAR® I DF can be used to control weedsunder asphalt and concrete pavement, such as that used in
• Pressure - Use the lower spray pressures recommended for
parking lots, highway shoulders, median strips, roadways, and
the nozzle. Higher pressure reduces droplet size and does
not improve canopy penetration. WHEN HIGHER FLOWRATES ARE NEEDED, USE A HIGHER-CAPACITY
KROVAR® I DF should only be used in an area that has been
NOZZLE INSTEAD OF INCREASING PRESSURE.
prepared according to good constructions practices. Use
• Nozzle Type - Use a nozzle type that is designed for the
sufficient water to insure uniform coverage, generally 100 gal
intended application. With most nozzle types, narrower
per acre. Agitate the tank continuously to keep
spray angles produce larger droplets. Consider using low-
APPLICATION TIMING CONTROLLING DROPLET SIZE - AIRCRAFT
KROVAR® I DF should be applied immediately before paving
• Number of Nozzles - Use the minimum number of nozzles
to avoid lateral movement of the herbicide as a result of soil
with the highest flow rate that provide uniform coverage.
movement due to rainfall or mechanical means.
• Nozzle Orientation - Orienting nozzles so that the spray is APPLICATION RATES
emitted backwards, parallel to the airstream will producelarger droplets than other orientations.
Apply KROVAR® I DF at 17 to 30 pounds per acre. Use ahigher rate for hard to control weeds and/or for longer term
• Nozzle Type - Solid stream nozzles (such as disc and core
with swirl plate removed) oriented straight back producelarger droplets than other nozzle types. TANK MIXTURES BOOM LENGTH AND HEIGHT
To control a broader spectrum of weeds, or for an extended
• Boom Length (aircraft) - The boom length should not
period of weed control, a tank mixture of KROVAR® I DF at
exceed 3/4 of the wing length, using shorter booms
7 to 15 pounds per acre plus DuPont™ OUST® XP at 4 to 8
decreases drift potential. For helicopters use a boom length
and position that prevents droplets from entering the rotor
IMPORTANT PRECAUTIONS-UNDER ASPHALT
• Boom Height (aircraft) - Application more than 10 ft above
• Do not use KROVAR® I DF under pavement in residential
the canopy increases the potential for spray drift.
properties such as driveways, or in recreational areas,
• Boom Height (ground) Setting the boom at the lowest
including jogging or bike paths, tennis courts, or golf cart
height which provides uniform coverage reduces the
exposure of droplets to evaporation and wind. The boom
• Desirable plants may be injured if their roots extend into
should remain level with the crop and have minimal bounce.
treated areas or if planted in treated areas. SPRAY DRIFT MANAGEMENT
Drift potential increases at wind speeds of less than 3 mph (dueto variable direction and inversion potential) or more than 10
The interaction of many equipment and weather-related factors
mph. However, many factors, including droplet size and
determines the potential for spray drift. The applicator is
equipment type determine drift potential at any given wind
responsible for considering all these factors when making
speed. AVOID APPLICATIONS DURING GUSTY OR
AVOIDING SPRAY DRIFT IS THE RESPONSIBILITY OF
NOTE: Local terrain can influence wind patterns. Every
applicator should be familiar with local wind patterns and how
IMPORTANCE OF DROPLET SIZE
The most effective way to reduce drift potential is to apply
TEMPERATURE AND HUMIDITY
large droplets (>150 - 200 microns). The best drift
When making applications in hot and dry conditions, set up
management strategy is to apply the largest droplets that
equipment to produce larger droplets to reduce effects of
provide sufficient coverage and control. The presence of
sensitive species nearby, the environmental conditions, andpest pressure may affect how an applicator balances drift
SURFACE TEMPERATURE INVERSIONS
control and coverage. APPLYING LARGER DROPLETS
Drift potential is high during a surface temperature inversion.
Surface inversions restrict vertical air mixing, which causes
small suspended droplets to remain close to the ground and
move laterally in a concentrated cloud. Surface inversions are
ENVIRONMENTAL CONDITIONS! See Wind,
characterized by increasing temperature with altitude and are
Temperature and Humidity, and Surface Temperature
common on nights with limited cloud cover and light to no
Inversions sections of this label.
wind. They begin to form as the sun sets and often continueinto the morning. Their presence can be indicated by ground
fog; however, if fog is not present, inversions can also beidentified by the movement of smoke from a ground source or
STORAGE AND DISPOSAL
an aircraft smoke generator. Smoke that layers and moves
Do not contaminate water, food, or feed by storage or
laterally in a concentrated cloud (under low wind conditions)
indicates a surface inversion, while smoke that moves upward
Pesticide Storage: Store product in original container
and rapidly dissipates indicates good vertical air mixing. SHIELDED SPRAYERS Pesticide Disposal: Waste resulting from the use of this product must be disposed of on site or at an
Shielding the boom or individual nozzles can reduce the effects
of wind. However, it is the responsibility of the applicator to
Container Handling: Refer to the Net Contents
verify that the shields are preventing drift and not interfering
section of this product’s labeling for the applicable
with uniform deposition of the product. “Nonrefillable Container” or “Refillable SENSITIVE AREAS Container” designation. Nonrefillable Plastic and Metal Containers
The pesticide should only be applied when the potential for
(Capacity Equal to or Less Than 50 Pounds):
drift to adjacent sensitive areas (eg., residential areas, bodies of
Nonrefillable container. Do not reuse or refill this
water, known habitat for threatened or endangered species,
container. Triple rinse container (or equivalent)
non-target crops) is minimal (eg., when wind is blowing away
promptly after emptying. Triple rinse as follows:
Empty the remaining contents into application equipment or a mix tank. 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. Then, for Plastic Containers, offer for recycling if available or puncture and dispose of in a sanitary landfill, or by incineration. Do not burn, unless allowed by state and local ordinances. For Metal Containers, offer for recycling if available or reconditioning if appropriate, or puncture and dispose of in a sanitary landfill, or by other procedures approved by state and local authorities Nonrefillable Plastic and Metal Containers (Capacity Greater Than 50 Pounds): Nonrefillable container. Do not reuse or refill this container. Triple rinse container (or equivalent) promptly after emptying. Triple rinse as follows: Empty the remaining contents into application equipment or a mix tank. Fill the container 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. Then, for Plastic Containers, offer for recycling if available or puncture and dispose of in a sanitary landfill, or by incineration. Do not burn, unless allowed by state and local ordinances. For Metal Containers, offer for recycling if available or reconditioning if appropriate, or puncture and dispose of in a sanitary landfill, or by other procedures approved by state and local authorities. Nonrefillable Plastic and Metal Containers, e.g., All Other Refillable Containers: Refillable Intermediate Bulk Containers [IBC] (Size or Shape
container. Refilling Container: Refill this container
Too Large to be Tipped, Rolled or Turned Upside
with KROVAR® I DF containing bromacil and diuron
Down): Nonrefillable container. Do not reuse or refill
only. Do not reuse this container for any other
this container. Clean container promptly after
purpose. Cleaning before refilling is the responsibility
emptying the contents from this container into
of the refiller. Prior to refilling, inspect carefully for
application equipment or mix tank and before final
damage such as cracks, punctures, abrasions, worn out
disposal using the following pressure rinsing
threads and closure devices. If damage is found, do
procedure. Insert a lance fitted with a suitable tank
not use the container, contact DuPont at the number
cleaning nozzle into the container and ensure that the
below for instructions. Check for leaks after refilling
water spray thoroughly covers the top, bottom and all
and before transporting. If leaks are found, do not
sides inside the container. The nozzle manufacturer
reuse or transport container, contact DuPont at the
generally provides instructions for the appropriate
number below for instructions. Disposing of
spray pressure, spray duration and/or spray volume. If
Container: Do not reuse this container for any other
the manufacturer’s instructions are not available,
purpose other than refilling (see preceding). Cleaning
pressure rinse the container for at least 60 seconds
the container before final disposal is the responsibility
using a minimum pressure of 30 PSI with a minimum
of the person disposing of the container. To clean the
rinse volume of 10% of the container volume. Drain,
container before final disposal, use the following
pour or pump rinsate into application equipment or
pressure rinsing procedure. Insert a lance fitted with a
rinsate collection system. Repeat this pressure rinsing
suitable tank cleaning nozzle into the container and
procedure two more times. Then, for Plastic
ensure that the water spray thoroughly covers the top,
Containers, offer for recycling if available or puncture
bottom and all sides inside the container. The nozzle
and dispose of in a sanitary landfill, or by incineration.
manufacturer generally provides instructions for the
For Metal Containers, offer for recycling if available
appropriate spray pressure, spray duration and/or
or reconditioning if appropriate, or puncture and
spray volume. If the manufacturer’s instructions are
dispose of in a sanitary landfill, or by other procedures
not available, pressure rinse the container for at least
approved by state and local authorities.
60 seconds using a minimum pressure of 30 PSI with aminimum rinse volume of 10% of the container
Nonrefillable Paper or Plastic Bags, Fiber Sacks
volume. Drain, pour or pump rinsate into application
including Flexible Intermediate Bulk Containers
equipment or rinsate collection system. Repeat this
(FIBC) or Fiber Drums With Liners: Nonrefillable
pressure rinsing procedure two more times. Then, for
container. Do not reuse or refill this container.
Plastic Containers, offer for recycling if available or
Completely empty paper or plastic bag, fiber sack or
puncture and dispose of in a sanitary landfill, or by
drum liner by shaking and tapping sides and bottom to
incineration. Do not burn, unless allowed by state and
loosen clinging particles. Empty residue into
local ordinances. For Metal Containers, offer for
application or manufacturing equipment. Then offer
recycling if available or reconditioning if appropriate,
for recycling if available or dispose of empty paper or
or puncture and dispose of in a sanitary landfill, or by
plastic bag, fiber sack or fiber drum and liner in a
other procedures approved by state and local
sanitary landfill, or by incineration. Do not burn,
unless allowed by state and local ordinances. Outer Foil Pouches of Water Soluble Packets Refillable Fiber Drums With Liners: Refillable (WSP): Nonrefillable container. Do not reuse or refill
container (fiber drum only). Refilling Fiber Drum:
this container. Offer for recycling if available or,
Refill this fiber drum with DuPont™ KROVAR® I
dispose of the empty outer foil pouch in the trash as
DF containing bromacil and diuron only. Do not reuse
long as WSP is unbroken. If the outer pouch contacts
this fiber drum for any other purpose. Cleaning before
the formulated product in any way, the pouch must be
refilling is the responsibility of the refiller. Completely
triple rinsed with clean water. Add the rinsate to the
empty liner by shaking and tapping sides and bottom
spray tank and dispose of the outer pouch as described
to loosen clinging particles. Empty residue into
application or manufacturing equipment. Disposing ofFiber Drum and/or Liner: Do not reuse this fiber
Do not transport if this container is damaged or
drum for any other purpose other than refilling (see
leaking. If the container is damaged, leaking or
preceding). Cleaning the container (liner and/or fiber
obsolete, or in the event of a major spill, fire or other
drum) before final disposal is the responsibility of the
emergency, contact DuPont at 1-800-441-3637, day or
person disposing of the container. Offer the liner for
recycling if available or dispose of liner in a sanitarylandfill, or by incineration. Do not burn, unless
NOTICE TO BUYER: Purchase of this material does not
allowed by state and local ordinances. If drum is
confer any rights under patents of countries outside of the
contaminated and cannot be reused, dispose of it in the
manner required for its liner. To clean the fiber drumbefore final disposal, completely empty the fiber drum
The DuPont Oval, DuPont™, KROVAR® and OUST® are
by shaking and tapping sides and bottom to loosen
trademarks or registered trademarks of E. I. duPont de
clinging particles. Empty residue into application or
manufacturing equipment. Then offer the fiber drumfor recycling if available or dispose of in a sanitarylandfill, or by incineration. Do not burn, unlessallowed by state and local ordinances. SL - 1539 042210 04-14-10 LIMITATION OF WARRANTY AND LIABILITY
NOTICE: Read this Limitation of Warranty andLiability Before Buying or Using This Product. If theTerms 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 theuse of this product. Such risks arise from weatherconditions, soil factors, off target movement,unconventional farming techniques, presence of othermaterials, the manner of use or application, or otherunknown factors, all of which are beyond the control ofDuPont. These risks can cause: ineffectiveness of theproduct, crop injury, or injury to non-target crops orplants. WHEN YOU BUY OR USE THIS PRODUCT,YOU AGREE TO ACCEPT THESE RISKS.
DuPont warrants that this product conforms to thechemical description on the label thereof and isreasonably fit for the purpose stated in the Directions forUse, subject to the inherent risks described above, whenused in accordance with the Directions for Use undernormal conditions.
TO THE EXTENT CONSISTENT WITHAPPLICABLE LAW, DUPONT MAKES NO OTHEREXPRESS OR IMPLIED WARRANTY OF FITNESSOR OF MERCHANTABILITY OR ANY OTHEREXPRESS OR IMPLIED WARRANTY. TO THEEXTENT CONSISTENT WITH APPLICABLE LAW,IN NO EVENT SHALL DUPONT OR SELLER BELIABLE FOR ANY INCIDENTAL,CONSEQUENTIAL OR SPECIAL DAMAGESRESULTING FROM THE USE OR HANDLING OFTHIS PRODUCT. BUYER'S OR USER'SBARGAINED-FOR EXPECTATION IS CROPPROTECTION. TO THE EXTENT CONSISTENTWITH APPLICABLE LAW, THE EXCLUSIVEREMEDY OF THE USER OR BUYER AND THEEXCLUSIVE LIABILITY OF DUPONT OR SELLER,FOR ANY AND ALL CLAIMS, LOSSES, INJURIESOR DAMAGES (INCLUDING CLAIMS BASED ONBREACH OF WARRANTY OR CONTRACT,NEGLIGENCE, TORT OR STRICT LIABILITY),WHETHER FROM FAILURE TO PERFORM ORINJURY TO CROPS OR OTHER PLANTS, ANDRESULTING FROM THE USE OR HANDLING OFTHIS PRODUCT, SHALL BE THE RETURN OF THEPURCHASE PRICE OF THE PRODUCT, OR AT THEELECTION OF DUPONT OR SELLER, THEREPLACEMENT OF THE PRODUCT.
To the extent consistent with applicable law that allowssuch requirement, DuPont or its Ag Retailer must haveprompt notice of any claim so that an immediateinspection of buyer's or user's growing crops can bemade. Buyer and all users shall promptly notify DuPontor a DuPont Ag Retailer of any claims, whether basedon contract, negligence, strict liability, other tort orotherwise, or be barred from any remedy.
This Limitation of Warranty and Liability may not beamended by any oral or written agreement. For product information call: 1-888-6-DUPONT Internet address: www.dupont.com/ag/us 1999-2010 E. I. du Pont de Nemours and Company, 1007 Market Street, Wilmington, Delaware 19898. All rights reserved.
DuPont™ Krovar® I DF
PRECAUTIONARY STATEMENTS