# PROZINE 32/48

- EPA Reg No: **241-300**
- Registrant: BASF AGRICULTURAL SOLUTIONS US LLC
- Signal word: Caution
- Active ingredients: Atrazine (48%); Pendimethalin (32%)
- Label accepted: 1986-11-20
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/009779-00278-19861120.pdf

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Riverside Trademark 0 I NOV201986 
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ACTIVE INGREDIENf 
Pendirnethalin (N-(I-ethylpropyl}-3,4-dirnethyl-2,6-
dinitrobenzenamine} ..•...•..••••.•••.••..•••.•.••.•• 32.0% 
Atrazine (2-chloro-4-ethylamino-6-isopropylamino-s-
triazine} ••......•••..•••.••••••••••••.••.•..••..... 48.0% 
INERT INGREDIENTS................................... 20.0% 
Total 100.0% 
EPA REG. NO. 9779- EPA EST. NO. 9779-AR-13 
STOP-READ LABEL BEFORE USING. 
KEEP OUT OF REACH OF CHILDREN 
CAUTION 
STATEMENT OF PRACTICAL TREATMENT 
IF ON SKIN: Remove contaminated clothing and wash with soap and 
water. 
IF IN EYES: Flush eyes with plenty of water. Get medical attention 
if irritation persists. 
IF INHALED: Remove victim to fresh air and apply respiration if 
indicated. 
IF SWALLOWED: Contact your local poison control center, hospital, 
or physician. If the patient is unconscious, maintain breathing 
and heartbeat (cardiopulmonary resuscitation.) If the patient is 
conscious and alert, drink 1 or 2 glasses of water and induce 
vomitlng by touching back of throat with finger. NEVER GIVE ANYTHING 
BY MOUTH TO AN UNCONSCIOUS PERSON! 
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See additional PRECAUTIONARY STATEMENTS on .ide (or back) panel:':' 
Manufactured For 
RIVERSIDE/TERRA CORPORATION 
Terra Centre, 600 Fourth Street, Sioux City, Iowa SIIOI 
Riverside serves agriculture. Agriculture serves everyone. 
NET CONTENTS POUNDS 
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PRECAUTIONARY STATEMENTS 
CAUTION 
HAZARDS TO HUMANS AND DOMESTIC ANIMALS 
Harmful if swallowed, inhaled, 
breathe vapors or spray mist. 
clothing. Remove contaminated 
thoroughly with soap and water 
or absorbed throueh skin. Do not 
Avoid contact with eyes, skin or 
clothing and wash before reuse. Wash 
after handling. 
ENVIRONMENTAL HAZARDS 
This product is toxic to fish. Do not apply directly to lakes, streams, 
or ponds. DO NOT apply when weather conditions favor drift from target 
area. DO NOT contaminate water by cleaning of equipment or disposal 
of wastes. 
DIRECTIONS FOR USE 
It is a violation of Federal law to use this product in a manner inconsistent 
with its labeling. 
Do not app1y this product in such a manner as to directly or through drift 
expose workers or other persons. The area being treated must be vacated by 
unprotected persons. 
RE-ENTRY STATEMENT (FOR USE IN SWEET CORN IF HAND LABOR IS INVOLVED) 
Do not enter treated areas without protective clothing until sprays have dried. 
Protective clothing means, at least, a hat or other suitable head covering, a 
long-sleeved shirt and long-legged trou£ers or a coverall-type garment (all of 
closely woven fabric covering the body. including the arms and legs). imper­
meable gloves and boots. Because certain states may require more restrictive 
re-entry intervals for various crops treated with this product, consult your 
State Department of Agriculture for further information. 
• ... 
Written or oral warning~ must be given to workers who are expected to be tn a •••••• ••• • •• treated area or in an area about to be treated with this p~oduct. Wher? .q~~i • • 
warnings are given, warnings shall be given in a language customarily understood·:··: 
by workers. Oral warnings must be given if there is reason to believe.tha~ •• . . b b . . • ••••• • •••• written warnings cannot e understood y workers. Written warnings mu~t include. • .. . . .... the followlng lnformatlon: "CAUTION. Area treated with PROZINE on (d'tt~'(;i • 
application). Do not enter without appropriate protective clothing. 11 •••• • ••••• 
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STORAGE AND DISPOSAL 
DO NOT CONTAMINATE WATER, FOOD, OR FEED BY STORAGE OR DISPOSAL. 
STORAGE 
Store in a dry location away from children, animals, foods, feeds, 
seeds, or other agricultural chemicals. Handle in accordance with 
information given under IIPrecautionary Statements. 1I In the event 
of spillage, scrape up spillage. If spillage is not suitable for 
use, dispose of in accordance with information given under 
"DISPOSAL." Repackage and relabel useable product in a sound 
container. In case of fire or other emergency, report at once by 
toll-free telephone to 800-424-9300. 
DISPOSAL 
Pesticide Disposal: Wastes resulting from the use of this product 
may be disposed of on site or at an approved waste disposal facility. 
Container Disposal: Triple rinse (or equivalent). Then offer for 
recycling or reconditioning, or puncture and dispose of in a sanitary 
landfill, or incineration, or, if allowed by state and local 
authorities, by burning. If burned, stay out of smoke. 
GENERAL INFORHATlON 
PROZINE controls many annual broad leaf and grass weeds in corn and sorghum. 
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It may be applied before or after weeds emerge. The effectiveness of this pro­
duct depends on moisture to move it into the root zone. If weeds develop, a 
shallow cultivation or rotary hoeing will generally result in better weed 
control. Unusually cold, excessively wet, or hot and dry conditions that delay 
germination or extend ,germination over a long period of time can r€duce weed 
control. 
Seedling diseases, cold weather, excessive moisture, deep planting, low or high 
soil pH, high soil salt concentration, or drought can weaken seedlings au~. 
plants and increase the possibility of crop damage from this herbicide. Onder 
these conditions, crop yields can be reduced. : •••• 
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•••••• • •• • • • ••••• • •• Application in Water or Liquid Fertilizer: Nitrogen solution or compl~te 1iquid •• 
fertilizer may replace all or part of the water as a carrier for preem4lUIl1:e o~·:··. 
corn. Check the compatibility of this product with liquid fertilizer and'~r ••••• , . .... nitrogen solution as shown below before use. Do not apply in nitrogen ~etbtiQn •••••• 
or complete liquid fertilizer after corn emerges. • •••• 
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-" To determine the compatibility of PROZINE with liquid fertilizer, pourthe pro­
duct into a small container of liquid fertilizer in the proportions shown below. 
For different spray volume or herbicide rate, make appropriate changes in the 
ingredients. 
For each pound of PROZINE to be applied per acre, add 1 level teaspoon of the 
product to one pint of liquid fertilizer (assuming a volume of 25 gallons per 
acre). 
After thorough mlx1ng, let stand ~ minutes. If the herbicide/fertilizer com­
bination remains mixed, or can be remixed readilYJ make a slurry with the her­
bicide before adding fertilizer and use the roixturl: only if this test shows it 
is compatible. 
ROTATIONAL CROPS: (1) Do not rotate to any crop except corn or sorghum until 
the following year, as injury may occur. (2) In the High Plains and :ntprmoun­
tain areas of the West where rainfall is sparse and erratic or where irrigation 
is required, use only when corn or sorghum is to follow corn or sorghum or when 
a crop of untreated corn or sorghum is to precede other rotational crops. (3) 
Injury may occur to soybeans planted in north-central and northwest Iowa, south­
central and southwest Minnesota, northeast Nebraska, southeast South Dakota, and 
other areas the year following application on soils having a calcareous surface 
layer. (4) In eastern parts of the Dakotas, Kansas, western ~innesota) and 
Nebraska, do not rotate to soybeans if the rate applied to corn sorghum was reore 
than 4 pounds per Acre (or equivalent band application rate) 0r soybean injury 
may occur. (5) Do not plant sugarb~~ts, tobacco, vegetables (including dry 
beans), spring-seeded small grains, or small-seeded legumes ar.d grasses the year 
following application as injury may occur. 
APPLICATION PROCEDURES 
GROUND APPLICATION: Use convel!t~onal ground sprayers equipped with .. "zzles that 
provide accurate and uniform application. Be certain that nozzles are uniformly 
spaced and are tha same size. Calibrate sprayer before use and recalibrate at 
the start of each season and when changing carriers. Unless otherwise spec­
ified, use a minimum of 10 gallons of spray mixture per acre for preemeq~ence 
and postemergence a9plications with ground equipment. 
Use a pump with capacity to (l) maintain 35-40 psi at nozzles, (2) provi,de 
sufficient agitation in tank to keep mixture in suspension, and (3) to p'r:5vide " 
minimum of 20% bypass at all times. Use centrifugal pumps which provit.le "pro- ...... : .. : 
peller shear action for dispersing and mixing this product. The pump ~\Mrid •••••• 
provide a minimum of 10 gallons per minute per 100 gallons tank size circ'ulated •••• 
through a correctly positioned sparger tube or jets. : ..... :.. ..": ... 
• Uae screens to protect the pump and to prevent nozzles from clcgging .•• ~<;,,~ens 
placed on the suction side of the pump should be l6-mesh or coarser. Do .not 
place a screen in the recirculation line. Use 50-mesh or coarser scre", .... be-
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tween the pump and bOOlA, and where required, at" the nozzles. Check no"z.~l"e ... manu"-·: .... : .. " .. . factiJrer IS recommendatlons. .." ... 
AERIAL APPI.ICATION: Apply in a minim"l11 of 5 gall"ns 
application to humans) animals, or non-target areas. 
avc ... d inhalation of ~vr3y mist nnd prolongef~ contact 
thoroughly before eati~B and at the end of each day's 
of wC!ter per ncrt? Avoid 
Flagmen and loaders should 
with skin and should wash 
operation.

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MIXING PROCEDURES -i;~,L USES: Be sure sprayer is cJ i1 and not contaminated '". ,) ( 
with a~y other mate~ls, or :rop injury or sprayer'-'ogging may result. Fill 
tank! full with clean water J nitrogen solution, or complete liquid fertilizer. 
Start agitation. Be certain that the agitation system is working properly and 
creates ~ rippling or rolling action on the liquid surface. Pour product 
directly from container into tank. Let it wet and settle into solution. 
Continue filling tank until 90% full. lncrease agitation if necessary to main­
tain surface action. Finish filling tank. Maintain agitatton to avoid separa­
tion of materiale. Clean sprayer thoroughly immediately after use by flushing 
system with water containing a detergent. 
WEED SPECIES CONTROLLED 
CRASSES CONTROLLED 
Barnyardgrass (Echinochloa crus-galli) 
Crabgrass (Digitaria spp.) 
Crowfootgrass (Dactyloctenium aegyptium) 
Fall panicum (Panicum dichotomiflorum) 
Fiel1 sandbur (Cenchrus incertus) 
Foxtail (giant) (Setaria faberi) 
Foxtail «green) (Setaria viridis) 
Foxtail (yellow) (Setaria glauca) 
Goosegrass (Eleusine indica) 
Johnsongrass (from seed) (Sorghum halepense) 
Signalgrass (Brachiaria platyphylla) 
Texas panicum (Panicum texanum) 
Witchgrass (Panicum capillare) 
BROADLEAF WEEDS CONTROLLED 
Black nightshade (Solanum nigrum) 
Carpetweed (Mollugo verticil lata) 
Common ragweed (Ambrosia artemisiifolia) 
Florida pus ley (Richardia scabra) 
Kochia (Kochia scoparia) 
Lambsquarters (Ghenopo~ium album) 
Mustard (Brassica spp.) 
Pennsylvania smartweed (Polygonllm pensylvanicum) 
Pig"eed (Amaranthus spp.) 
Purslane (Portulaca oleracea) 
Spurge, annual (Euphorbia spp.) 
Velvetleaf (Buttonweed) (Abutilon theophrasti) 
Venice mallow (Hibiscus trionum) 
PROZINE will aid in the control and reduce competition from: 
Annual morningglory (Ipomoea spp.) 
Cocklebur (Xanthium strumarium) 
Groundcherry (Physalis spp.) 
Jimsonweed (Datura stramonium) 
Shattercane (Sorghulll bicolor) 
Wild oats (Avena fatua) 
Wild proso millet (Panicum miliaceum) 
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CORN - FI ELD AND SliEET 
GENERAL INSTRUCTIONS 
Use only where adequate tillage is practiced to provide good soil coverage of 
the corn seed. Plant corn AT LEAST l~ inches deep to ensure good seed coverage. 
PROZINE is most effective in controlling weeds when adequate rainfall or over­
head irrigation is received within 7 days after application. If cultivation is 
necessary because of soil crusting, soil compaction or weed gerlnination before 
rain or irrigation, use shallow tillage (such as rotary hoe), and make certain 
corn seeds are below the tilled area. For maximum effectiveness, wait at least 
7 to 10 days before cultivating early postemergence treatments. 
Field Corn Grown In Minimum Tillage Systems 
PROZINE may be used in field corn in minimum tillage systems where adequate 
tillage is practiced to provide a seedbed without living vegetation and which 
allows for good seed coverage. Plant corn AT LEAST It inches deep to ensure 
good seed coverage. The use of no-till planters in minimum tillage corn under 
conditions which do not allow good soil coverage of the corn seed can result in 
reduced crop stand or injury if PROZINE contacts the germinating corn seed. 
Check equipment to ensure good seed coverage. Apply in 20 or more gallons of 
spray solution per acre. 
PREEMERGENCE (Surface Treatment After Planting) 
Apply PROZINE ~reemergence after planting, but before weeds or crop emerge. 
Apply in water or liquid fertilizer with ground equipment or in water with 
aircraft. Refer to section on application in water or liquid fertilizer for 
liquid fertilizer compatibility determinations. DO NOT INCORPORATE or serious 
corn injury will result. 
EARLY POSTEHERGENCE 
Apply PROZINE after corn emergence but no later than when corn is in the 4-leaf 
stage of gi~owth and when weeds are no more tl. ' I inch high J except for ~~>::as 
panicum w~nch must be no larger than the I to L leaf stage. Apply with g,'ound 
equipment or aircraft in water ONLY. For ground applications, flat fa~ Qot?les 
are preferred. DO NOT apply following PROWL preemergence treatment. 
R~STRICTIONS FOR EARLY POSTEMERGENCE APPLICATIONS . , 
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To avoid serious crop injury with early postemergence applications J obs'e-cv,,' the 
following restrictions: 
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DO NOT INCORPORATE. 
DO N0T apply i" lilUid fertilizer. 
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\,C; BROADCAST RATE PER ACRE OF p( .INE Ii, F 1(' 
Preemergence and Early Postemergence in Corn 
Less than 1. 5% 1.5 to 3.0% More than 3% 
Soil Texture Organic Hatter l Organic Hatter Organic Matter 
COARSE 2.5 to 3.0 Ibs. 3.0 Ibs. 4.25 Ibs. 
HEDIUH 3.0 Ibs. 4.2S lbs. 4.25 Ibs. 
FINE 3.0 Ibs. 4.25 lbs. 4.25 Ibs. 
IPROZINE may be applied in sweet corn in Illinois, l-iinnesota, Wisconsin, and 
New York only. 
NOTE: If corn crop loss occut·s due to weather conditions and corn is replanted, 
seeding depth must be below retilled area. 
NOTE FOR ALL APPLICATIONS TO CORN: DO NOT graze or feed forage from treated 
areas for 21 days following application. 
FIELD CORN AND GRAIN SORGHUH 
POSTEHERGENCE INCORPORATED APPLICATIONS 
GENERAL INFORHATION: Winter wheat and winter barley may be planted in the fall 
90 days after an application with PROZINE postemergence incorporated in irri­
gated field corn or grain sorghum or 120 days after an application in dry land 
field corn or grain sorghum. The treated crop must be grown to maturity and 
harvested be {ore planting wheat or barley. See GENERAL INFORHATION for comple.te 
rotational instructions. 
PROZINE applied as a postemergence incorporated treatment will control most late 
season annual grasses and certain broadleai weeds in field corn or grain 
sorghum. Treatments can be applied from the 4-inch growth stage to as late as 
the last cultivation (layby) of field co,n or grain sorghum. Treatments will 
not control established weeds. EHERGED WELDS HUST BE DESTROYED BY GULTI~ATION • PRIOR TO APPLICATION. • •• •• • •••• 
• ••••• • •• • • 
APPLICATION TECHNIQUES: The field must De cultivated and all emerged we~ds mu~~:": 
be destroyed prior to application. Cultivation should be accomplishe~.~itP a ••• :: 
sweep-type or rolling cultivator operated at sufficient speed to thro~ at least.: •• ' 
ona inch of 80il over the base8 of the field corn or grain sorghum p14nt~~. This. 
will kiD. small weed seedlings growing in the field corn or grain sorg~um· row •••••• • •• and will prevent direct contact of the zone of brace root formati"n dU\ln~ •• 
application. •••••• ..: •• : 
•••• ••• • Apply with ground sprayer. Uniform soil coverage must be obtained. ~ •• p: 
nozzles should be used if field corn or grain sorghum foliage will prevent uni­
form coverage of the soil surface within the rows.

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• must be thoroughly and uniformly incorporated into the soil (l) with 
8 sweep-type or rolling cultivator set to provide thorough incorporation in the 
top 1 inch of sailor (2) with adequate irrigation water or rainfall. For beat 
results, treatments should be incorporated as soon as possible after application 
but incorporation must be completed within 7 days after application. If ade­
quate moisture is not received within 7 days after application, PROZINE must be 
incorporat~d with a sweep-type or rolling cultivator. 
Under situations of-low rainfall or soil moisture) when deep germinating weeds 
such as shattercane or field sandbur are anticipated) mechanical incorporation 
will provide best results. 
If cultivation is needed after application and incorporation, the depth of cut 
should be no deeper than the depth of cut used to incorporate. 
DO NOT APPLY PROZINE in field corn or grain sorghum more than once per crop 
season. 
WEEDS CONTROLLED: When applied as directed, PROZIN~ will control shattercane 
(Sorghum bicolor) and wild proso millet (Panicum miliaceum) in addition to the 
WEED SPECIES CONTROLLED previously listed. 
ADDITIONAL HERBICIDE APPLICATIONS: Postemergence incorporated applications of 
PROZINE can be applied in field corn or grain sorghum previously treated with 
herbicides registered for use in field corn or grain sorghum. Consult the 
labels of those herbicides for suggested treatments, rates to be used, and pre­
cautions 0E restrictions for use in field corn or grain sorghum and for restric­
tions on following crops. 
FIELD CORN 
DO NOT APPLY PROZINE preplant incorporated in field corn as serious crop injury 
can result. 
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BROADCAST RATe PER ACRE 
Soil Texture Southern States l Northern States l 
COARSE 2.25 Ibs. 2.25 to 3.0 Ibs. 
HEDIUH 2.5 to 3.0 Ibs. 3.25 to 4.25 Ibs. 
FINE 2.5 to 4.25 1 bs. 3.25 to 4.25 Ibs. 
ISee map below. 
GRAIN SORGHUH 
DO NOT APPLY in grain sorghum preplant incorporated or preemergence as sErious 
crop injury can result. 
DO NOT APPLY in grain sorghum which is planted in double row beds since this 
cultural practice does not permit adequate soil coverage of the bases of the 
grain sorghum plants with cultivation. 
BROADCAST RATE PER ACRE 
Soi 1 Texture Southern States l Northern States 1 
COARSE DO NOT USE DO NOT USE 
HEDlUH 2.5 to 3.0 lbs. 3.25 to 4.25 Ibs. 
FINE 2.5 to 4.25 lb •• 3.25 to 4.25 lbs. 
ISee map below. 
NOTE: Observe all precautions) limitations, and cropping restrictions referred 
to in GENERAL INFORMATION section. Livestock can graze or be fed forage from 
treated grain sorghum fields 21 days following application. 
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REGIONAL MAP FOR RATE DETERMINATION • •• • • • •••• 
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Seller ~arrant8 that the product conforms to its chemical description 
and is reasonably fit for the purposes stated on the label when used in accor­
dane'! \lith directions under normal conditions of use, but neither this warranty 
nor any other warranty of me~chantability or fitness for a particular purpose, 
express or implied, extends to the use of this product contrary to label 
instructions" or under abnormal conditions I or under conditions not reasonably 
foreseeable to Seller, and Buyer assumes the risk of any such use. 
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