crop-chem-docs/corpus/epa_ppls/19713-556.md

# DREXEL ME-TOO-LACHLOR III HERBICIDE

- EPA Reg No: **19713-556**
- Registrant: DREXEL CHEMICAL COMPANY
- Signal word: Caution
- Active ingredients: Metolachlor (84.1%)
- Label accepted: 2023-01-04
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/019713-00556-20230104.pdf

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UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 
 WASHINGTON, DC 20460 
 
 
 
OFFICE OF CHEMICAL SAFETY 
AND POLLUTION PREVENTION 
 
January 4, 2023 
 
Anna Hale 
Registration Manager 
Drexel Chemical Company 
P.O. Box 13327 
Memphis, TN 38113-0327 
 
Subject: Registration Review Label Amendments Incorporating Mitigation Measures from 
the Interim Decision for Metolachlor and the National Marine Fisheries Services’ 
(NMFS) Biological Opinion on the Effects of Metolachlor on Pacific Salmonids 
 Product Name: Drexel Me-Too-Lachlor III Herbicide 
 EPA Registration Number: 19713-556 
 Application Date: March 30, 2021, and July 12, 2021 
Decision Number: 572798 and 577108 
 
Dear Ms. Hale: 
 
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 Metolachlor Interim Decision. The Agency has concluded that your submission is 
acceptable. The label referred to above, submitted in connection with registration under FIFRA, 
as amended, is acceptable. 
 
This letter also addresses the label mitigation resulting from the NMFS’ Biological Opinion on 
the effects of Metolachlor on Pacific salmonids. The Agency has concluded that your submission 
is also 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.

Page 2 of 2 
EPA Reg. No. 19713-556 
Decision No. 572798 and 577108 
 
A stamped copy of your labeling is enclosed for your records. This labeling supersedes 
all previously accepted labeling. You must submit one copy of the final printed labeling 
before you release the product for shipment with the new labeling. In accordance with 40 
CFR 152.130(c), you may distribute or sell this product under the previously approved 
labeling for 12 months from the date of this letter. After 12 months, you may only 
distribute or sell this product if it bears this new revised labeling or subsequently 
approved labeling. “To distribute or sell” is defined under FIFRA section 2(gg) and its 
implementing regulation at 40 CFR 152.3. 
 
If you have any questions about this letter, please contact Carolyn Smith at 
smith.carolyn@epa.gov. 
 
 Sincerely, 
 
 
 Linda Arrington, Branch Chief 
 Risk Management and Implementation Branch 4 
 Pesticide Re-Evaluation Division 
 Office of Pesticide Programs 
 
 
 
Enclosure

Me-Too-Lachlor TM III
Herbicide
For weed control in Field Corn and Popcorn.
ACTIVE INGREDIENT: 
Metolachlor: 2-chloro- N-(2-ethyl-6methylphenyl)-N-(2-
methoxy-
1-methylethyl) acetamide ................................... 84.1% 
OTHER INGREDIENTS: .......................................... 15.9% 
TOTAL: ............................................................ 100.0% 
This product contains 7.8 pounds of Metolachlor active ingredient per gallon.
KEEP OUT OF REACH OF CHILDREN 
CAUTION 
(See FIRST AID Below)
(See Side (Back) Panel for FIRST AID); 
(See Page ___ for FIRST AID)
(See Container Labeling for (FIRST AID and) 
Complete Directions for Use) (See 
(Attached) Booklet (Container Labeling) 
for Complete Directions for Use)
(SHAKE WELL BEFORE USING); 
(Recirculate Contents Before Use)
EPA Reg. No. 19713-556 Net Content: 
EPA Est. No. 19713-XX-X _____Gals. (_____L)
FIRST AID
IF INHALED:
• Move person to fresh air.
• If person is not breathing, call 911 or an ambulance, then give
artificial respiration, preferably mouth-to-mouth, if possible.
• Call a poison control center or doctor for treatment advice.
IF ON SKIN OR CLOTHING:
• Take off contaminated clothing.
• Rinse skin immediately with plenty of water for 15 to 20 minutes.
• Call a poison control center or doctor for treatment advice.
IF IN EYES:
• Hold eye open and rinse slowly and gently with water for 15 to 20 
minutes.
• Remove contact lenses, if present, after the first 15 minutes, then 
continue rinsing eye.
• Call a poison control center or doctor for treatment advice.
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 or convulsing
person.
Have the product container or label with you when calling a poison 
control center or doctor, or going for treatment.
EMERGENCY PHONE NUMBERS:
• (800) 424-9300 CHEMTREC (transportation and spills)
• (800) 900-4044 Poison Control Center (human health)
• (800) 345-4735 ASPCA (animal health)
PRECAUTIONARY STATEMENTS
Hazards to Humans and Domestic Animals
CAUTION: Harmful if swallowed. Causes moderate eye irritation. 
Wash thoroughly with soap and water after handling and before 
eating, drinking, chewing gum, or using tobacco. Avoid contact with 
eyes or clothing. Wear protective eye wear. Wear long-sleeved 
shirt and long pants, socks, shoes and gloves.
PERSONAL PROTECTIVE EQUIPMENT (PPE) 
Applicators and other handlers must wear:
• Coveralls over short-sleeved shirt and short pants
• Chemical-resistant gloves made of barULHUODPLQDWHRUYLWRQ•
mils
• Chemical-resistant footwear plus socks
• Chemical-resistant headgear for overhead exposure
• Chemical-resistant apron when cleaning equipment
)ROORZPDQXIDFWXUHU¶VLQVWUXFWLRQVIRUFOHDQLQJ௘௘௘௘PDLQWDLQLQJ33(
If no such instructions for washables exist, use detergent and hot
water. Keep and wash PPE separately from other laundry.
ENGINEERING CONTROL STATEMENTS
Mixers and loaders supporting aerial applications are required to use 
closed systems. The closed system must be used in a manner that 
meets the requirements listed in the Worker Protection Standard 
(WPS) for agricultural pesticides [40 CFR 170.240(d)(4)]. When using 
the closed system, the PPE requirements for mixers and loaders may 
be reduced or modified as specified in the WPS. 
When handlers use closed systems, enclosed cabs, or aircraft in a 
manner that meets the requirements listed in the Worker Protection 
Standard (WPS) for agricultural pesticides [40 CFR 170.240(d)(4-6)], 
the handler PPE requirements may be reduced or modified as 
specified in the WPS. 
Manufactured By:
Drexel Chemical Company
P.O. Box 13327, Memphis, 
TN 38113-0327
ME-TOO-LACHLOR and the DREXEL logo are either trademarks or registered trademarks of 
Drexel Chemical Company.
556SP-0321*Pending ME-TOO-LACHLOR
III PAGE 1 of 
METOLACHLOR
 GROUP
 15
 HERBICIDE
Jan 04, 2023
19713-556

USER SAFETY RECOMMENDATIONS Users 
should: 1) Wash hands before eating, drinking, chewing gum, using tobacco 
or using the toilet. 2) Remove clothing immediately if pesticide gets inside. 
Then wash thoroughly and put on clean clothing. 3) 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
Do not apply directly to water, to areas where surface water is present or to 
intertidal areas below the mean high water mark. Do not con-taminate water 
when disposing of equipment washwater or rinsate. 
Reporting Ecological Incidents:
To report ecological incidents, including mortality, injury, or harm to plants and 
animals, call 1-901-774-4370.
Groundwater Advisory
This chemical is known to leach through soil into groundwater under certain 
conditions as a result of label use. This chemical may leach into groundwater if 
used in areas where soils are permeable, particularly where the water table is 
shallow.
Surface Water Advisory
This product may impact surface water quality due to 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 weeks or months after 
application. A level, well maintained, vegetative buffer strip between areas to 
which this product is applied and surface water features such as ponds, 
streams and springs will reduce the potential loading of Metolachlor from runoff 
water and sediment. Runoff of this product will be reduced by avoiding 
application when rainfall or irrigation is expected to occur within 48 hours.
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Care must be taken when using this product to prevent back-siphoning 
into wells, spills, or improper disposal of excess pesticide, spray 
mixtures, or rinsates.
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irrigation equipment.
This product may not be mixed or loaded within 50 feet of perennial or 
intermittent streams and rivers, natural or impounded lakes and reservoirs. This 
SURGXFWPD\QRWEHPL[HG௘௘ORDGHGRUXVHGZLWKLQIHHWRIDOOZHOOVLQFOXGLQJ
abandoned wells, drainage wells, and sink holes. Operations that involve 
mixing, loading, rinsing, or washing of this product into or from pesticide 
handling or application equipment or containers within 50 feet of any well are 
prohibited unless conducted on an impervious pad constructed to withstand the 
weight of the heaviest load that may be positioned on or moved across the pad. 
Such a pad shall be designed and maintained to contain any product spills or 
equipment leaks, container or equipment rinse or wash water, and rain water 
that may fall on the pad. Surface water shall not be allowed to either flow over 
or from the pad, which means the pad must be self-contained. The pad shall be 
sloped to facilitate material removal. An unroofed pad shall be of sufficient 
capacity to contain at a minimum 110% of the capacity of the largest pesticide 
container or application equipment on the pad. A pad that is covered by a roof 
of sufficient size to completely exclude precipitation from contact with the pad 
shall have a minimum containment capacity of 100% of the capacity of the 
largest pesticide container or application equipment on the pad. Containment 
capacities as described above shall be maintained at all times. The above-
specified minimum containment capacities do not apply to vehicles when 
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NON-TARGET ORGANISMS ADVISORY
This product is toxic to plants and may adversely impact the forage and habitat 
of non-target organisms, including pollinators, in areas adjacent to the treated 
site. Protect the forage and habitat of non-target organisms by following label 
directions intended to minimize spray drift.
DIRECTIONS FOR USE
ENDANGERED SPECIES PROTECTION REQUIREMENTS:
It is a Federal offense to use any pesticide in a manner that results in an 
unauthorized “take” (e.g. kill or otherwise harm) of an endangered 
species and certain threatened species, under the Endangered Species 
Act section 9. When using this product, you must follow the measures 
contained in the Endangered Species Protection Bulletin for the area in 
which you are applying the product. You must obtain a Bulletin no 
earlier than six months before using this product. To obtain Bulletins, 
consult http://www.epa/gov/espp/, call 1-844-447-3813, or email 
ESPP@epa.gov. You must use the Bulletin valid for the month in which 
you will apply the product.
It is a violation of Federal law to use this product in a manner inconsistent with 
its labeling.
Do not apply this product in a way that will contact workers or other persons, 
either directly or through drift. Only protected handlers may be in the area during 
application. For any requirements specific to your state or tribe, consult the 
agency responsible for pesticide regulation.
AGRICULTURAL USE REQUIREMENTS Use 
this product only in accordance with its labeling and with the Worker 
Protection Standard, 40 CFR part 170. This Standard contains requirements
for the protection of agricultural workers on farms, forests, nurseries, and 
greenhouses, and handlers of agricultural pesticides. It contains 
requirements for training, decontamination, notification, and emergency 
assistance. It also contains specific instructions and exceptions pertaining to 
the statements on this label about Personal Protective Equipment (PPE) and 
restricted-entry interval.
The requirements in this box only apply to uses of this product that are covered
by the Worker Protection Standard. 
Do not enter or allow worker entry into treated areas during the 
Restricted-Entry Interval (REI) of 12 hours. Exception: If the product is 
soil-injected or soil-incorporated, the Worker Protection Standard, under 
certain circumstances, allows workers to enter the treated area if there will 
be no contact with anything that has been treated. 
PPE required for early entry to treated areas that is permitted under the 
Worker Protection Standard and that involves contact with anything that has 
been treated, such as plants, soil or water is:
• Coveralls
• Chemical-resistant gloves made of barrier laminate or viton
• Shoes plus socks 
FAILURE TO FOLLOW THE DIRECTIONS FOR USE AND USE 
PRECAUTIONS ON THIS LABEL MAY RESULT IN POOR WEED 
CONTROL, CROP INJURY, OR ILLEGAL RESIDUES.
HERBICIDE RESISTANCE MANAGEMENT
METOLACHLOR GROUP 15 HERBICIDE
For resistance management, this product is a Group 15 mode of action 
herbicide. Any weed population may contain or develop plants 
naturally resistant to this product and other Group 15 mode of action 
herbicides. The resistant biotypes may dominate the weed population 
if these herbicides are used repeatedly in the same field. Appropriate 
resistance management strategies should be followed.
To delay herbicide resistance, take one or more of the following steps:
• Rotate the use of this product or other Group 15 mode of action
herbicides within a growing season sequence or among growing
seasons with different herbicide groups that control the same weeds 
in a field.
• Use tank-mixtures with herbicides from a different group if such use
is permitted; where information on resistance in target weed species 
is available, use the less resistance-prone partner at a rate that will
control the target weed(s) equally as well as the more resistance-
prone partner. Consult your local extension service or certified crop
advisor if you are unsure as to which active ingredient is currently
less prone to resistance. • Adopt an integrated weed-management
program for herbicide use that includes scouting and uses historical
information related to herbicide use and crop rotation, and that
considers tillage (or other mechanical control methods), cultural
(e.g., higher crop seeding rates; precision fertilizer application
method and timing to favor the crop and not the weeds), biological
(weedcompetitive crops or varieties) and other management
practices. • Scout after herbicide application to monitor weed
populations for early signs of resistance development. Indicators of
possible herbicide resistance include: (1) failure to control a weed
species normally controlled by the herbicide at the dose applied,
especially if control is achieved on adjacent weeds; (2) a spreading
patch of non-controlled plants of a particular weed species; (3)
surviving plants mixed with controlled individuals of the same
species. If resistance is suspected, prevent weed seed production in 
the affected area by an alternative herbicide from a different group
or by a mechanical method such as hoeing or tillage. Prevent
movement of resistant weed seeds to other fields by cleaning
harvesting and tillage equipment when moving between fields, and
planting clean seed.
• If a weed pest population continues to progress after treatment with
this product, discontinue use of this product, and switch to another
management strategy or herbicide with a different mode of action, if
available.

ME-TOO-LACHLOR III PAGE 3 of 
• Contact your local extension specialist or certified crop advisors for
additional pesticide resistance-management and/or integrated 
weed-management recommendations for specific crops and weed
biotypes.
• For further information or to report suspected resistance, contact
Drexel Chemical Company representatives at (901) 774-4370.
A. GENERAL INFORMATION
Observe all use precautions and limitations on the labels of each
product used in tank-mixtures. Tank-mixtures are permitted only in
those states where the tank-mix partner is registered.
Me-Too-Lachlor III Herbicide is a selective herbicide recommended as 
a pre-plant surface-applied, pre-plant incorporated, or preemergence
treatment in water or fluid fertilizer for control of most annual grasses
and certain broadleaf weeds in Field corn and Popcorn.
Note: Do not use in nurseries, turf, or landscape plantings. Do not
apply under conditions which favor runoff or wind erosion of soil
containing this product to non-target areas.
To prevent off-site movement due to runoff or wind erosion:
1) Avoid treating Powdery dry or Light sand soilswhen conditions are 
favorable for wind erosion. Under these conditions, the soil surface 
should first be settled by rainfall or irrigation.
2) Do not apply to impervious substrates such as paved or highly
compacted surfaces.
3) Do not use tailwater from the first flood or furrow irrigation of
treated fields to treat non-target crops unless at least one-half inch 
of rainfall has occurred between application and the first irrigation.
Where directions on this label specify a tank-mixture with Atrazine
follow the rates, recommendations, and limitations on the Atrazine
product label.
Note: Certain states may have established rate limitations for Atrazine 
within specific geographical areas. Consult your state lead pesticide 
control agency for additional information. It is a violation of this label to 
deviate from state use regulations. 
If this product is incorporated, any supplemental tillage before planting 
must not exceed the depth of incorporation. 
Dry weather following pre-emergence application of this product or a 
tank-mixture may reduce effectiveness. Cultivate if weeds develop. 
Where reference is made to weeds partially controlled, partial control 
can either mean erratic control from good to poor, or consistent control 
at a level below that generally considered acceptable for commercial 
weed control.
1) SOIL TEXTURES AND HERBICIDE RATES
Where rates are based on Coarse, Medium or Fine-textured soils, it is 
understood that soil textural classes are generally categorized as
follows:
Coarse
Medium Fine
Sand 
Loamy sand 
Sandy loam
Loam 
Silt loam 
Silt
Sandy clay loam
Silty clay loam
Clay loam
Sandy clay
Silty clay
Clay
Within rate ranges in the rate tables and elsewhere on this label, use 
the lower rate on soils relatively Coarse-textured or low in organic 
matter; use the higher rate on soils relatively Fine-textured or high in 
organic matter.
Note: This product may be applied pre-emergence alone, or in 
combination with tank-mix partners specified on this label, following 
pre-plant incorporated herbicides when used according to their label 
recommendations, provided that such use is not prohibited on the 
respective labels. 
Thoroughly clean sprayer or other application device before using. 
Dispose of cleaning solution in a responsible manner. Do not use a 
sprayer or applicator contaminated with any other materials, or crop 
damage or clogging of the application device may result.
2) MIXING INSTRUCTIONS
This Product Alone: Mix this product with water or fluid fertilizer and
apply as a spray. Fill the spray tank one-half to three-quarters full with
water or fluid fertilizer, add the proper amount of this product, then add
the rest of the water or fluid fertilizer. Provide sufficient agitation during 
mixing and application to maintain a uniform emulsion. 
Tank-Mixtures: Fill the spray tank one-fourth full with water, and start 
agitation; add 2,4-D, Atrazine , Banvel
® , Lorox®, Marksman®, Sim-
Trol®, Prowl®, or Atrazine + Sim-Trol, and allow it to become dispersed; 
then add this product, then add Gramoxone® Extra, Landmaster® BW, 
or Roundup®, if these products are being used; and finally the rest of 
the water. For tank-mixtures with Atrazine, Banvel, Lorox, Marksman, 
Sim-Trol, Prowl*, or Atrazine + Sim-Trol, fluid fertilizers may replace 
all or part of the water as carrier, except in the Atrazine 
postemergence and the Banvel post-emergence tank-mixes. For tank-
mixtures with Atrazine, see additional mixing instructions on the 
Atrazine label. For each mixture, check compatibility with fluid 
fertilizer, as described in Appendix A, before mixing in spray tank. For 
all tank-mixtures, agitate during mixing and application to maintain a 
uniform suspension.
*See Special Mixing Instructions for tank-mixtures with Atrazine or
Sim-Trol + Prowl under the appropriate tank-mixture section. For
directions on how to conduct a compatibility test, see Appendix A.
3) APPLICATION PROCEDURES Application Timing
This product alone or in some tank-mixtures with other labeled
herbicides may be applied for weed control in Field corn and Popcorn
at various times. Refer to the given crop section of the label to
determine if application timings listed below are recommended.
A) Pre-plant Surface-Applied: For minimum-tillage or no-tillage
systems only, this product alone and some tank-mixtures of this
product may be applied up to 45 days before planting. Use only
split applications for treatments made 30 to 45 days before
planting, with two-thirds the recommended broadcast rate for the
crop and soil texture applied initially and the remaining one-third at 
planting. Treatments less than 30 days before planting may be
made either as a split or a single application. If weeds are present
at the time of treatment, apply in a tank-mixture combination with
a contact herbicide (for example, Gramoxone Extra or Roundup).
Observe directions for use, use precautions, and restrictions on
the label of the contact herbicide. To the extent possible, do not
move treated soil out of the row or move untreated soil to the
surface during planting, or weed control will be diminished.
B) Pre-plant Incorporated: Apply this product to the soil and
incorporate into the top 2 inches of soil within 14 days before
planting, using a finishing disk, harrow, rolling cultivator, or similar
implement capable of providing uniform 2 inch incorporation. Use
a pre-plant incorporated application if furrow irrigation is used or
when a period of dry weather after application is expected. If Field
corn and Popcorn will be planted on beds, apply and incorporate
this product after bed formation, unless specified otherwise.
C) Pre-emergence: Apply this product during planting (behind the
planter) or after planting, but before weeds or Field corn and
Popcorn emerge.
4) SPECIAL APPLICATION PROCEDURES
A) CA Only (Field corn and Popcorn)—Pre-plant Incorporated:
Broadcast this product alone or with tank-mix partners listed on
this label to the soil and thoroughly incorporate with a disk or
similar implement set to till 4 to 6 inches deep. For more thorough
incorporation, till the soil in 2 different directions (cross-till). Field
corn and Popcorn may be planted on flat surface or on beds.
Caution should be used when forming the beds that only soil from
this product’s treated zone is used (i.e., untreated soil should not
be brought to soil surface). If the application is made to preformed
beds, incorporate this product with a tillage implement set to till 2
to 4 inches deep. Care should be taken during tilling to keep the
tilled (this product treated) soil on the beds.
Pre-emergence: Apply this product after planting. Water with 
sprinkler or flood irrigation within 7 to 10 days. Fall Application 
(Only in IA, MN, ND, SD, WI, and portions of NE and IL - see 
specific instructions for timing of appli-cation and other 
information): Do not apply to frozen ground. Use on Medium and 
Fine soils with greater than 2.5% organic matter that will be planted 
to Field corn or Popcorn the next Spring. Ground may be tilled 
before or after application. Do not exceed a 2 to 3 inch 
incorporation depth if tilled after treatment. Note: If a Spring 
application is made, the total rate of the Fall plus Spring

applications must not exceed the maximum total rate for the 
specific crop, or illegal residues may result.
Ground Application: Apply this product alone or in tankmixtures by 
ground equipment in a minimum of 10 gallons of spray mixture per 
acre, unless otherwise specified.
Use sprayers that provide accurate and uniform application. For tank-
mixtures of this product with wettable powder or dry flowable 
formulations, screens and strainers should be no finer than 50 
mesh. Rinse sprayer thoroughly with clean water immediately after 
use.
Calculate the amount of herbicide needed for band treatment by the 
formula.
band width in inches broadcast rate amount 
needed row width in inches x per acre= per acre of
field
Note: For information on applying in lower volumes of carrier, see 
“LOW CARRIER APPLICATION” in Appendix B.
For application by air or through center pivot systems, see 
Appendices C and D. Appendix C includes “MANDATORY 
SPRAY DRIFT MANAGEMENT” and “SPRAY DRIFT 
ADVISORIES” sections.
For information on impregnating dry fertilizer, see Appendix E.

ME-TOO-LACHLOR III PAGE 5 of 
B. THIS PRODUCT APPLIED ALONE
1) WEEDS CONTROLLED
Barnyardgrass
(Watergrass)
Bristly foxtail
Carpetweed
Common waterhemp
Crabgrass
Crowfootgrass
Eastern black 
nightshade
Fall panicum
Foxtail millet
Galinsoga
Giant foxtail
Goosegrass
Green foxtail
Pigweed
Prairie cupgrass
Red rice
Robust foxtails
(purple, white)
Signalgrass
(Brachiaria)
Southwestern 
cupgrass
Tall waterhemp
Wild proso millet* 
Witchgrass
Woolly cupgrass*
Yellow foxtail
Yellow nutsedge
Florida pusley
*For control of these weeds in Field corn and Popcorn only, refer to
the “ WOOLLY CUPGRASS” and “ WILD PROSO MILLET
CONTROL PROGRAM” section of this label.
WEEDS PARTIALLY CONTROLLED*:
Common purslane Sandbur Volunteer sorghum
Eclipta Seedling Johnsongrass Wild proso millet Florida
beggarweed** Shattercane Woolly cupgrass
Hairy nightshade Texas panicum***
*See “GENERAL INFORMATION”section. Control of these weeds 
can be erratic, due partially to variable weather conditions.
Control may be improved by following these suggested
procedures:
1) In Field corn and Popcorn use 2 to 2.67 pints per acre or the pre-
plant surface-applied rates for this product alone or in tank-
mixture, if allowed, when making pre-plant incorporated or pre-
emergence applications.
2) Thoroughly till moist soil to destroy germinating and emerged
weeds. If this product is to be applied pre-plant incorporated, this
tillage may be used to incorporate this product if uniform 2 inch
incorporation is achieved as recommended under “APPLICATION
PROCEDURES”.
3) Plant Field corn and Popcorn into moist soil immediately after
tillage. If this product is to be used pre-emergence, apply at
planting or immediately after planting.
4) If available, sprinkler irrigate within 2 days after application. Apply
one-half to 1 inch of water. Use lower water volume (one-half inch) 
on Coarse-textured soils and higher volume (1 inch) on Fine-
textured soils . Also, refer to the section on “CENTER PIVOT
IRRIGATION APPLICATION” for this method of applying this
product.
5) If irrigation is not possible and rain does not occur within 2 days
after planting and application, weed control may be decreased.
Under these conditions, a uniform, shallow cultivation is
recommended as soon as weeds emerge.
**For partial control of this weed, use a minimum of 2 pints per acre
and apply pre-emergence.
***For partial control of this weed, use a minimum of 2 pints per acre 
and apply through a center pivot irrigation system.
2) ROTATIONAL CROPS
This Product Alone: (1) If Field corn or Popcorn crop treated with
this product alone is lost, either Field corn or Popcorn may be 
replanted immediately. Do not make a second broadcast 
application of this product. If the original application was banded 
and the second crop is planted in the untreated row middles, a 
second banded treatment may be applied. (2) Barley, Oats, Rye, 
or Wheat may be planted 4.5 months following treatment; Alfalfa 
may be planted 4 months following application. Tomatoes may be 
planted 6 
months following application. (3) Field corn and Popcorn, in addition 
to Cotton, Peanuts, Pod crops, Potatoes, Safflower, Grain or 
Forage sorghum, Soybeans, Root crops, Tobacco, Barley, 
Buckwheat, Milo, Oats, Rice, Rye, Wheat, Cabbage, or Peppers, 
may be planted in the Spring following treatment. Cloer may be 
seeded 9 months following application. Do not graze or feed 
forage or fodder from Cotton to livestock. (4) Following a lay-by 
treatment or multiple treatments applied the previous season, 
Field corn and Popcorn in addition to Tobacco, Cabbage, or 
Peppers may be planted in the Spring. All other rotational crops 
may be planted 12 months after a lay-by application.
This Product In Tank-Mixtures:
For Rotational Crop restrictions for this product used in tank- 
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and to the respective product labels of any mixing partner(s) for 
DGGLWLRQDOVWDWHPHQWV௘௘restrictions. Important Notes: To avoid injury 
to rotational Alfalfa or Clover: (1) Do not apply more than 2 pounds 
a.i. of Metolachlor per acre (2 pts. of this product) pre-emergence
(including pre-plant surface, pre-plant incorporated, post-plant
incorporated, etc.), and (2) Do not make lay-by or other post-
emergent applications of this product.
C. FIELD CORN AND POPCORN — THIS PRODUCT ALONE
Apply this product either pre-plant surface, pre-plant incorporated or
pre-emergence using the appropriate rate specified below.
1) PRE-PLANT SURFACE-APPLIED
Refer to instructions for use of this product alone under
“APPLICATION PROCEDURES”.
a. Fall Application (Apply after September 30 in MN, ND, SD, WI 
and north of Route 30 in IA; Apply after October 15 north of
Route 91 in NE and south of Route 30 in IA; Apply after
October 31 north of Route 136 in IL):
In all locations, apply to crop stubble after harvest when the 
sustained soil temperature at a 4 inch depth is less than 55°F and 
falling. In minimum-till or no-tillage systems on soils having 
greater than 2.5% organic matter, use 1.67 to 2 pints per acre on 
Medium-textured and 2 pints per acre on Fine-textured soils . Do 
not apply to frozen ground. A tillage operation may precede the 
DSSOLFDWLRQ$)DOODQG௘௘RUa Spring tillage may follow application, 
but do not exceed an incorporation depth greater than 2 to 3 
inches. Minimize furrow and ridge formation in the tillage 
operations. Note: If a Spring application is made, the total rate of 
the Fall plus Spring applications must not exceed the maximum 
total rate for Field Corn and Popcorn, or illegal residues may 
result.
b. Use on Medium and Fine-textured soils with minimum-tillage or
no-tillage systems in CO, IA, IL, IN, KS, KY, MN, MO, MT, ND,
NE, SD, TN, WI, and WY. Apply two-thirds of the recommended
rate of this product (1.67 pts./A on Medium soils and 2 pts./A on
Fine soils) as a split treatment 30 to 45 days before planting and
the remainder at planting. Applications made less than 30 days
prior to planting may be as either a split or single treatment. Apply 
1.33 pints per acre on Coarse soils not more than 2 weeks prior
to planting.
c. On Medium and Fine-textured soils with minimum or notillage
systems in CT, DE, MA, MD, ME, MI, NH, NY, OH, PA, RI, VA,
VT, and WV, pre-plant surface applications may be applied
following the directions for use above. If the amount of rainfall
results in unsatisfactory length of weed control following the
earlier treatment, a post-emergence application of an
appropriately labeled broadleDIDQG௘௘RUJUDVVZHHGKHUELFLGHPD\
be used, i.e., Atrazine, Beacon
®, Bicep ®, Exceed ®, Accent ®,
Banvel®, Basagran®, bromoxyril (Brominal® or Buctril®), or 2,4-D.
If the post-emergence treatment includes the herbicide used pre-
plant surfaceapplied, do not exceed the total labeled rate for Field 
corn and Popcorn on a given soil texture. Observe all directions
for use, use precautions, and limitations on the label of the post-
emergent herbicide.
2) PRE-PLANT INCORPORATED OR PRE-EMERGENCE
Follow instructions for use of this product alone under Application
Procedures. On Coarse soils, apply 1 to 1.33 pints per acre of this
product if organic matter content is less than 3%, or 1.33 pints per
acre if organic matter content is 3% or greater. On Medium soils,
apply 1.33 to 1.67 pints per acre of this product. On Fine soils, apply
1.33 to 1.67 pints per acre of this product if organic matter content is
less than 3%, or 1.67 to 2 pints per acre if organic matter content is
3% or greater. Lay-by: To extend the duration of weed control in Field 
corn and Popcorn, a maximum rate of 2 pints per acre of this product
may be applied after Corn emergence until the Corn plants reach 40
inches in height, following any pre-plant surface-applied, pre-plant
incorporated, or pre-emergence herbicide application, including this
product. For best results, applications should be made to soil free of
emerged weeds and directed towards the base of Corn plants in
excess of 5 inches tall. The total rate of this product applied on Field
corn and Popcorn during any one crop year should not exceed 4 pints 
per acre, depending on soil texture.

ME-TOO-LACHLOR III PAGE 6 of 
Note for all applications to Field corn and Popcorn: To avoid 
possible illegal residues, do not graze or feed forage from treated 
areas for 30 days following application.
Shattercane, Wild Proso Millet, Woolly Cupgrass, and Eclipta — 
Partial Control: For more consistent partial control of Shattercane, 
Wild proso millet, Woolly cupgrass, or Eclipta, apply 2 to 2.55 pints 
per acre as a single application; or apply 1 to 1.33 pints per acre of 
this product pre-plant incorporated followed by 1 to 1.33 pints per 
acre of this product pre-emergence; however, do not apply more than 
a total of 2.55 pints per acre. Make the pre-emergence application 
during or after planting, but befo re weeds and Corn plants emerge. 
Apply the 1.33 pints per acre rate of this product when a heavy 
infestation of Shattercane, Wild proso millet, Woolly cupgrass, or 
Eclipta is expected. A shallow cultivation may be needed to control 
any late emerging weeds.
Woolly Cupgrass and Wild Proso Millet Control Program: For 
control of these species, use the following 3 step program: 
1) Apply this product early pre-plant, pre-plant incorporated, or pre-
emergence at 1.67 pints per acre on Medium soils and 2 pints per 
acre on Fine-textured soils up to the maximum label rate. Lightly 
incorporate with a rotary hoe if rainfall does not occur within 5 to 
7 days. 
2) Apply a post-emergence tank-mix of Beacon at 0.38 ounce per
acre or Exceed at 1 packet per 4 acres plus Accent SP at 0.33
ounce per acre plus 1 quart of crop oil concentrate plus 1 gallon
per acre of 28% nitrogen, or the equivalent amount of ammonium 
sulfate, when grasses are 2 to 3 inches tall and the Field corn and 
Popcorn is at least 4 inches tall. 3) Cultivate 14 to 21 days after
the post-emergence application.
Notes:
1) Do not apply more than the labeled application rate for a given
soil texture per year, either as a single or split treatment, or illegal 
residues may result.
2) In Field corn and Popcorn, this product may be used up to 2.75
pints per acre as either a pre-plant surface, pre-plant
incorporated, or pre-emergence treatment on soils having an
organic matter content between 6% and 20% or up to 2 pints per
acre on any soil for extended residual control and where severe 
stands of problem weeds are expected.
3) In the event of escape of annual weeds following a pre-plant
surface, pre-plant incorporated, or pre-emergence treatment of
this product, follow with a post-emergence application of an
DSSURSULDWHO\ODEHOHGEURDGOHDIDQG௘௘RUJUDVVZHHGKHUELFLGHLH
Accent, Atrazine, Banvel, Basagran, Beacon, Bicep, Bromoxynil
(Brominal or Buctril), Exceed, or 2,4-D. If the post-emergence
treatment includes the herbicide used in earlier treatment, i.e.,
Atrazine, do not exceed the total labeled rate for Field corn and
Popcorn on a given soil texture.
4) Brominal or Buctril may be applied post-emergence alone or in
tank-mix combination with Atrazine. Do not exceed 1.2 pounds of 
Atrazine per acre in tank-mix combination with Brominal or Buctril 
post-emergence. Refer to the Atrazine, Brominal, and Buctril
labels for specific rates and use precautions. 5) Do not use this
product on Peat or Muck soils.
D. FIELD CORN AND POPCORN - Me-Too-Lachlor III Herbicide
Combinations
This product in any tank-mixture for Field corn and Popcorn (except 
this product + Atrazine post-emergence and this product + Banvel 
post-emergence) may be applied in water or fluid fertilizer. Use only 
water in this product + Atrazine or this product + Banvel post-
emergence tank-mixes.
Note: For all applications to Field corn and Popcorn, do not graze or 
feed forage from treated areas for 30 days following application, or 
possible illegal residues may result.
IMPORTANT: FOR TANK-MI XTURES WITH ATRAZINE (OR 
OTHER BRANDS OF ATRAZINE) — If applying this product in 
tank-mixture with Atrazine, all the restrictions and rate limitations 
on the Atrazine label must be followed if more restrictive / 
protective than those on this label. In addition, if Atrazine is / 
must be applied at rates lower than those recommended on this 
label, broadleaf weed control may be affected. Refer to the 
Atrazine label for weeds controlled at the reduced rates.
Chart 1: This Product in Tank-Mixtures for Field corn and Popcorn —— Additional Weeds Controlled and Special Instructions 
This Product + 
$WUD]LQHDQG௘௘RU
Sim-Trol
(Pre-plant Surface, 
PPI, PRE)
This Product + 
Atrazine 
(Post)
This Product + 
Banvel 
(Field Corn)
This Product + 
Atrazine + Lorox
This Product + 
Atrazine or 
Sim-Trol + Prowl
This Product + 
Marksman
S e c t i o n D 1D 2D 3D 4D 5D 8
Special Mixing 
Instructions 1 
Comments 2, 3, 4, 5, 7,8 2, 3, 4, 5 2, 3, 4, 5, 6 2, 3, 4, 5 7
Browntop panicum a a a
Cocklebur a b baaa
Common purslane a a a a
Hairy nightshade a a a a
Jimsonweed a b a
Kochia a a
Lambsquarters a a aaaa
Morningglory a b baaa
Mustard a a
Pigweed aaa
Prickly sida a a
R a g w e e d aaaaaa
S m a r t w e e d aaaaaa
V e l v e t l e a f aabaaa
a = control; b = partial control

ME-TOO-LACHLOR III PAGE 7 of 
COMMENTS — Chart 1: This Product In Tank-Mixtures
1) Special Mixing Instructions for this product + Atrazine or
Sim-Trol and Prowl.
(1) Fill the spray tank one-quarter full with water or fluid fertilizer and 
start agitation. (2) To aid compatibility, add a compatibility 
agent, such as Unite or X-77
®, at 4 pints per 100 gallons of 
spray mixture. (3) Then add the Atrazine or Simazine and 
allow it to become dispersed. (4) Then add this product and 
Prowl 4E. (5) Add the rest of the water.
2) Although a single formulation for Atrazine or Sim-Trol is
listed in the rate tables, other formulations may be
substituted using the following formula:
• 1 pound of Atrazine 90DF or Sim-Trol 90DF = 1.8 pints of Atrazine 
4L or Sim-Trol 4L
3) Although directions specify Atrazine formulations in tank- mixture
with this product, other brands of atrazine may be used. Follow
the rates. recommendations, and limitations on the Atrazine label.
4) See additional mixing instructions on the Atrazine label.
5) Use Precautions: Do not exceed a total of 2.5 pounds a.i. of
Atrazine per acre per year. However, certain states may have
established rate limitations for Atrazine within specific
geographical areas. Consult your state lead pesticide control
agency for additional information. It is a violation of this label to
deviate from state use regulations.
6) Other formulations of Lorox can be used:
• 1 pound of Lorox DF = 1 pint of Lorox 4L
7) In Minimum-Tillage and No-Tillage systems, mix with Gramoxone 
Extra for control of most emerged annual weeds and suppression 
of perennial weeds; or with Landmaster BW for suppression of
emerged Field bindweed and control or suppression of annual
weeds; or with Roundup for control of most emerged annual and
perennial weeds.
8) Refer to label section D7 on specific directions for 2,4-D or Banvel 
burndown combinations in Minimum-Tillage and No-Tillage
systems.
This product in any tank-mixture for Field corn and Popcorn may be 
applied in water or fluid fertilizer, except as noted.
Notes:
1) For all applications to Field corn and Popcorn, do not graze or
feed forage from treated areas for 30 days following application,
or possible illegal residues may result.
2) When applying this product in tank-mixture with Atrazine, do not
exceed a total of 2.5 pounds a.i. of Atrazine per acre per year.
3) Refer to section “ C. FIELD CORN AND POPCORN — THIS
PRODUCT ALONE”, Note 3 for recommended sequential post-
emergence treatments if escape weeds develop.
4) In Field corn and Popcorn, this product may be used up to 2 pints 
per acre in combinations on any soil for extended residual control 
and where severe stands of problem weeds are expected.
1. TANK-MIXTURE WITH ATRAZINE OR SIM-TROL, OR
ATRAZINE + SIM-TROL — PRE-PLANT SURFACE, PRE-PLANT
INCORPORATED OR PRE-EMERGENCE
In addition to the weeds controlled by this product alone, this product
+ Atrazine or Sim-Trol, or this product + Atrazine + Sim-Trol, applied
pre-plant surface, pre-plant incorporated, or pre-emergence, also
controls the following weeds: Browntop panicum, Cocklebur,
Common purslane, Hairy nightshade, Lambsquarters, Morningglory,
Ragweed, Smartweed, and Velvetleaf. Apply this product + Atrazine
or Sim-Trol, or this product + Atrazine+ Sim-Trol either pre-plant
surface, pre-plant incorporated, or pre-emergence.
Pre-plant Surface-Applied: Follow instructions for use of this 
product alone under “ APPLICATION PROCEDURES” and under 
application instructions for this product alone on Field corn and 
Popcorn. Apply this product + Atrazine or Sim-Trol, or this product + 
Atrazine + Sim-Trol on Medium soils (1.67 pts./A of this product + 3.2 
to 4 pints per acre of Atrazine 4L or Sim-Trol 4L, or Atrazine 4L + 
Sim-Trol 4L combined) and on Fine soils (1.67 to 2 pts./A of this 
product + 4 to 5 pts./A of Atrazine 4L, or Sim-Trol 4L, or Atrazine 4L 
+ Sim-Trol 4L combined) in minimum-tillage and no-tillage systems in 
CO, IA, IL, IN, KS, KY, MN, MO, MT, ND, NE, SD, TN, WI, and WY.
Apply the tank-mixtures as a split or single treatment in those states
and as indicated in the “ THIS PRODUCT — ALONE PRE-PLANT
SURFACE-APPLIED “ section of the label. On Coarse soils, apply
1.33 pints per acre of this product and 3.2 pints per acre of Atrazine 
4L or Sim-Trol 4L, or Atrazine 4L + Sim-Trol 4L combined.
Pre-plant Incorporated or Pre-emergence: Follow instructions for 
use of this product alone under “ APPLICATION PROCE DURES”.
Apply this product + Atrazine or Sim-Trol, or this product + Atrazine + 
Sim-Trol, using the appropriate rates from Table 1. 
Note: Do not apply more than the labeled rate for a given soil texture 
per year, either as a split or single treatment, or illegal residues may 
result.
Shattercane, Wild Proso Millet, Woolly Cupgrass, and Eclipta — 
Partial Control
For more consistent partial control of Shattercane, Wild proso millet, 
Woolly cupgrass, or Eclipta, where this product is applied in tank-
mixture or sequentially with other registered Field corn and Popcorn 
herbicides apply 2 to 2.33 pints as a single application or, the 
following applications may be made:
1) Apply 1 to 1.33 pints per acre of this product plus 2 pounds per
acre of Atrazine or Sim-Trol pre-plant incorporated, followed by 1
to 1.33 pints per acre of this product preemergence. Make the
pre-emergence application during or after planting, but before
weeds and Corn emerge.
2) Apply this product at 1.33 pints per acre alone or in tank -mix
combination with up to 2 pounds per acre of Atrazine or Sim-Trol
pre-plant incorporated. Do not exceed the total rate of Triazine
herbicide recommended for Field corn and Popcorn grown on a
given soil texture. Follow with a postdirected application of Evik
®
80W at 2.5 pounds per acre Refer to the Evik 80W label for
specific directions for the post-directed application.
3) A pply Eradicane
® or Sutan ® (or equivalent EPTC or butylate
formulations) at labeled rates pre-plant incorporated, followed by
a pre-emergence application of this product at 1 to 1.33 pints per
acre. Do not use EPTC or Butylate on soils where rapi d
degradation has been shown to occur. Make the preemergence
application during or after planting, but before weeds and Corn
emerge.
Use Precaution: When following the application regimes in numbers 
1 to 3 above, a shallow cultivation may be needed after the pre-
emergence or post-emergence application to help control any late 
emerging Shattercane or Wild proso millet plants.
2. TANK-MIXTURE WITH ATRAZINE — POST-EMERGENCE
Weeds Controlled Weeds Partially 
Controlled
Barnyardgrass
(Watergrass) 
Crabgrass
Crowfootgrass
Fall panicum
Giant foxtail
Green foxtail Prickly sida
Jimsonweed Purslane
Kochia Ragweed
Lambsquarters Smartweed
Mustard Velvetleaf
Pigweed Yellow foxtail
Cocklebur
Morningglory
Yellow nutsedge
Apply 1 pint per acre of this product + 1.3 pounds per acre of Atrazine 
90DF* on Coarse soils , 1.33 pints per acre of this product + 1.8 
pounds per acre of Atrazine 90DF on Medium soils, or 1.33 to 1.67 
pints per acre of this product + 1.8 to 2.2 pounds per acre** of 
Atrazine 90DF on Fine soils. Apply this tank-mixture before grass and 
broadleaf weeds pass the 2 leaf stage and before Field corn and 
Popcorn exceeds 5 inches in height. Application to weeds larger than 
the 2 leaf stage will generally result in unsatisfactory control.
Lay-by: Apply to Field corn and Popcorn plants not more than 12 
inches tall. Applications to Corn in excess of 5 inches should be 
directed to the base of the Corn plants; whereas, applications to Corn 
plants less than 5 inches tall may be made over the top. Occasionally, 
some Corn leaf burn may result, but this should not affect later growth 
or yield. Do not apply this post-emergence tank-mixture in fluid 
fertilizer, or severe crop injury may occur.* *When using Atrazine 4L, 
use equivalent rates. One pound of Atrazine 90DF equals 1.8 pints 
of Atrazine 4L.
**For better control of Cocklebur, Morningglory, Velvetleaf, and 
Yellow nutsedge on Fine-textured soils above 3% organic matter, 
apply 2.2 pounds per acre of Atrazine 90DF, or equivalent rate of 
Atrazine 4L, with 1.33 to 1.67 pints per acre of this product.
Table 1: This Product + Atrazine or Sim-Trol, or This Product + 
Atrazine + Sim-Trol, Pre-plant Incorporated or Pre-emergence —
Corn (Field, Pop)
Soil Texture Broadcast Rates Per Acre

ME-TOO-LACHLOR III PAGE 8 of 
Less Than 3% 
Organic Matter
3% Organic 
Matter or Greater
This 
Product
+A t r a z i n e
90DF*
OR
Sim-Trol
90DF*
–O R –
This
Product
+ Atrazine
90DF**
+Sim-Trol
90DF**
This 
Product
+A t r a z i n e
90DF*
OR
Sim-Trol 
90DF*
–O R –
This
Product
+ Atrazine
90DF**
+ Sim-Trol
90DF**
COARSE
0.85 to 
1.0 pt.
+ 
1.1 to 
2.2 lbs.
0.85 to 
1.0 pt.
+ 
0.6 to 
1.1 lbs.
+ 
0.6 to 
1.1 lbs.
1.0 pt.
+ 
1.3 to 
2.2 lbs.
1.0 pt.
+ 
0.7 to 
1.1 lbs.
+ 
0.7 to 
1.1 lbs.
MEDIUM
1.0 to 
1.33 pts.
+ 
1.3 to 
2.2 lbs.
1.0 to 
1.33 pts.
+ 
0.7 to 
1.1 lbs.
+ 
0.7 to 
1.1 lbs.
1.33 pts.
+ 
1.8 to 
2.2 lbs.
1.33 pts.
+ 
0.9 to 
1.1 lbs
+ 
0.9 to 
1.1 lbs.
FINE
1.33 pts.
+ 
1.8 to 
2.2 lbs.
1.33 pts.
+ 
0.9 to 
1.1 lbs.
+ 
0.9 to 
1.1 lbs.
1.33 to 
1.67 pts.
+ 
1.8 to 
2.2 lbs.***
1.33 to 
1.67 pts.
+ 
0.9 to 
1.1 lbs.***
+ 
0.9 to 
1.1 lbs.
Muck or Peat 
(soils with 
more than 
20% organic 
matter)
DO NOT USE
***Use Sim-Trol in preference to Atrazine when heavy infestations of Crabgrass or Fall 
panicum are expected. On soils having between 6% and 20% organic matter, this 
SURGXFW PD\ EH XVHG XS WR  SWV௘௘$ LQ WDQN-PL[ FRPELQDWLRQ ZLWK  OEV௘௘$ RI
Atrazine 90DF, or equivalent rates of Atrazine 4L. Refer to the Atrazine label for weeds 
controlled at this reduced rate.
**When using the tank-mixture of this product + Atrazine 90DF + Sim-Trol 90DF, use equal 
rates of each as shown when heavy broadleaf weed infestations are expected. When 
heavy infestations of Crabgrass or Fall panicum are expected, use a 1:2 ratio of Atrazine 
+ Sim-Trol, instead of the 1:1 ratio given in Table 1. (Example: Total Atrazine 90DF +
Sim-Trol 90DF = 1.2 lbs./A, use 0.4 lb. of Atrazine 90DF + 0.8 lb. of Sim-Trol, 90DF
respectively.) Refer to Comment No. 2 following Chart 1 for Sipcam, Atrazine 4L and
Sim-Trol 4L conversions.
***For Cocklebur, Yellow nutsedge, and Velvetleaf control on Fine-textured soils above 
3% ***RUJDQLFPDWWHUDSSO\OEV௘௘A of Atrazine 90DF, or equivalent rates of Atrazine 
4L, or ***the same total amount of Atrazine + Sim-7UROZLWKWRSWV௘௘$RIWKLV
product.
Tank-mixtures of this product + Atrazine may be applied following use 
of any registered pre-plant surface-applied, pre-plant incorporated, or 
pre-emergence Field corn and Popcorn herbicide, including this 
product + Atrazine. 
Note: The total rate of this product should not exceed 4 pints, nor the 
Atrazine rate more than 2.5 lbs. a.i./A during any one crop year, or 
illegal residues may result. Refer to the Atrazine label for geographic, 
soil-texture and rotational restrictions.
3. TANK-MIXTURE WITH BANVEL
Pre-emergence: Use this tank-mixture only on Field corn which is
flat-planted (no furrows) in CO, IA, IL, IN, KS, MN, NE, OH, SD, and
WI. In addition to the weeds controlled by this product alone, this
product + Banvel, applied pre-emergence, also controls
Lambsquarters, Ragweed, Smartweed, Cocklebur*, Jimsonweed*,
Morningglory*, and Velvetleaf* *Partially controlled.
Apply this product + Banvel pre-emergence. Broadcast 1 pint per
acre of Banvel with 1.33 pints per acre of this product on Medium
soils, or with 1.33 to 1.67 pints per acre of this product on Fine soils.
Do not apply on Coarse soils or on soils with less than 2.5% organic
matter. Apply this tank-mixture to the soil surface at planting or after
planting, but before Field corn emerges. Plant seed at least 1.5
inches deep and apply behind planting equipment, avoiding
incorporation by the planter wheel or other seed-covering device. Do 
not incorporate before Field corn plants emergence. If it is necessary 
to rotary hoe to break the soil crust, do not disturb the soil more than 
one-half inch deep. Use Precautions:(1) Avoid drift to sensitive non-
target plants, such as Soybeans, during application, or injury may 
occur. (2) Do not apply with aircraft.
Post-emergence for Control of Pigweed (Mid-Atlantic states 
including DE, MD, PA, VA, and WV): Apply 1 to 1.5 pints of this 
product + one-half to 1 pint per acre of Banvel by ground equipment 
when Pigweed plants are less than 3 inches tall and before Field corn 
exceeds 5 inches in height in a minimum of 20 gallons of spray per 
acre. Use the lower rate on Coarsetextured and low organic matter 
soils. Use the higher rate on Fine-textured and high organic matter 
soils.
Banvel SGF
® and Clarity® may be used at equivalent pounds of active 
ingredient per acre.
Use Precautions: (1) Avoid drift to sensitive non-target plants, such 
as Soybeans, during application, or injury may occur. (2) Do not apply 
with aircraft.
4. TANK-MIXTURE WITH ATRAZINE AND LOROX FOR CONTROL
OF LAMBSQUARTERS AND PIGWEED
For prolonged control of Lambsquarters and Pigweed in DE, MD, NJ, 
NY, PA, VA, and WV, this product may be applied pre-emergence in
tank-mix combination with Atrazine + Linuron. Apply this product and
Atrazine according to the rates in Table 1 and Linuron according to
the following rates.
Soil Texture Broadcast Rate per 
Acre
Sandy loam (1 to 3% organic matter) 0.67 lb. Lorox
Sandy loam (3 to 6% organic matter) 1.0 lb. Lorox
Medium and Fine-textured soils 
(1 to 6% organic matter) 1.0 lb. Lorox
Observe all directions for use, use precautions, and limitations on this 
product, Atrazine and Lorox labels when applying these products in 
tank-mix combinations.
5. TANK-MIXTURE WITH ATRAZINE OR SIM-TROL + PROWL FOR 
PROLONGED CONTROL OF LAMBSQUARTERS AND PIGWEED
IN FIELD CORN ONLY (NORTHEAST U.S., INCLUDING MI, IN, KY,
AND STATES EAST OF THESE)
For prolonged control of Lambsquarters and Pigweed in addition to a
broad spectrum of annual broadleaf and grass weeds, this product in
tank-mix combination with Atrazine* or Sim-Trol + Prowl may be
applied after planting, but before Field corn or weeds emerge. Apply
by ground equipment in a minimum of 10 gallons of water or 20
gallons of liquid fertilizer. Apply by air in a minimum of 5 gallons of
water. Refer to Table 1 of this label for rates of this product, Atrazine, 
or Sim-Trol to be applied. Apply Prowl 4E according to the following
rates below in Table 2.
*Do not apply this product in tank-mix combination with Atrazine 80W
*+ Prowl, as this combination is not compatible. Other Atrazine
formulations may be used.
Mixing Instructions: See “TANK-MIXTURE WITH ATRAZINE—
POST-EMERGENCE”.
Table 2: Prowl 4E — Broadcast Rates Per Acre
Soil Texture
Percent Organic Matter in Soil
Less Than 
1.5%
1.5 to 3% Over 3%
COARSE 1.5 to 2.0 pts. 2.0 pts. 3.0 pts.
MEDIUM 2.0 pts. 3.0 pts. 3.0 pts.
FINE 2.0 pts. 3.0 pts. 3.0 pts.
Observe all directions for use, use precautions and limitations on the 
respective product labels when applying these products in tank-mix 
combination. Refer to the Prowl 4E label for replanting instructions in 
the event of crop loss.

ME-TOO-LACHLOR III PAGE 9 of 
6. TANK-MIXTURE WITH ATRAZINE OR SIM-TROL, OR
ATRAZINE + SIM-TROL, WITH GRAMOXONE EXTRA,
LANDMASTER BW, OR ROUNDUP FOR MINIMUM-TILLAGE OR
NO-TILLAGE SYSTEMS
*See Comment No. 1 following Chart 1 for special mixing
instructions.
In minimum-tillage or no-tillage systems where Field corn and
Popcorn is planted directly into a cover crop, stale seedbed,
established sod, or previous crop residues, the contact herbicides
Gramoxone Extra, Landmaster BW, or Roundup may be added to a
tank-mix of this product , Atrazine, or Sim-Trol, or this product +
Atrazine + Sim-Trol. See Comment No. 7 following Chart 1. This
product + Atrazine or Sim-Trol, or this product + Atrazine + Sim-Trol
portion of the tank-mixture provides pre-emergence control of the
weeds listed on this label in the tank-mixture section for “ THIS
PRODUCT + ATRAZINE OR SIM-TROL, OR THIS PRODUCT +
ATRAZINE + SIM-TROL, PRE-PLANT SURFACE, PRE-PLANT
INCORPORATED, OR PRE-EMERGENCE”.
Application: Apply before, during, or after planting, but before the
Field corn and Popcorn emerges, at the rates specified below. Add
Gramoxone Extra, Landmaster BW, or Roundup at the following
broadcast rates:
Gramoxone Extra: 1.5 to 2, 2 to 2.5, or 2.5 to 3 pints per acre to 
1 to 3, 3 to 6, or 6 inch tall weeds, respectively. Apply surfactant 
at 1 or 2 pints per 100 gallons of spray mixture with 75% or greater 
or 50 to 74% non-ionic active ingredient, respectively. This 
treatment will not control weeds taller than 6 inches.
Note: Do not apply combinations containing Gramoxone Extra in 
suspension-type liquid fertilizers because the activity of paraquat 
will be reduced.
Landmaster BW: 27 to 54 ounces per acre depending on weed 
species and size. See the Landmaster BW label for weeds 
controlled, recommended rates for specific weeds, and other in-
formation concerning use.
Roundup: See the Roundup or Roundup RT label for weeds 
controlled, recommended rates, and other use precaution 
directions.
Apply in 20 to 60 gallons of water or fluid fertilizer per acre with ground 
equipment.
On Coarse soils, apply 1 pint per acre of this product with 1.3 pounds 
of Atrazine 90DF* or Sim-Trol 90DF*, or with 0.7 pound of Atrazine 
90DF** + 0.7 pound of Sim-Trol 90DF**. On Medium soils, apply 1.33 
pints per acre of this product with 1.8 pounds of Atrazine 90DF or Sim-
Trol 90DF, or with 0.9 pound of Atrazine 90DF + 0.9 pound of Sim-
Trol 90DF. On Fine soils***, apply 1.33 to 1.67 pints per acre of this 
product with 1.8 to 2.2 pounds of Atrazine 90DF or Sim-Trol 90DF, or 
with 0.9 to 1.1 pounds of Atrazine 90DF + 0.9 to 1.1 pounds of Sim-
Trol 90DF.
*
**Use Sim-Trol in preference to Atrazine when heavy infestations of Crabgrass 
or Fall panicum are expected.
***When using the tank-mixture of this product + Atrazine 90DF + Sim-Trol 
90DF, use equal rates of Atrazine and Sim-Trol as shown when heavy 
broadleaf weed infestations are expected. When heavy infestations of 
Crabgrass or Fall panicum are expected, use a 1:2 ratio of Atrazine + Sim-
Trol, instead of the 1:1 ratio given. (Example: Total Atrazine 90DF + Sim-
Trol 90DF = 1.8 lbs./A, use 0.6 lb. of Atrazine 90DF + 1.2 lbs. of Sim-Trol 
90DF, respectively.) Refer to Comment No. 2 following Chart 1 for Atrazine 
4L and Sim-Trol 4L conversions.
***For Cocklebur, Yellow nutsedge, and Velvetleaf control on Fine-textured 
soils above 3% organic matter, apply 2.25 pounds per acre of Atrazine 
90DF, or equivalent rate of Atrazine 4L, or the same total amount of Atrazine 
+ Sim-Trol, with 1.33 to 1.67 pints per acre of this product.
7. TANK-MIXTURE WITH ATRAZINE; OR ATRAZINE + 2,4-D; OR
ATRAZINE + 2,4-D + DICAMBA (BANVEL) FOR MINIMUMTILLAGE 
OR NO-TILLAGE SYSTEMS
In minimum-tillage or no-tillage systems where Field corn and
Popcorn is planted directly into a cover crop, stale seedbed,
established sod, or previous crop residues, this product applied in
combination with Atrazine will kill most emerged small annual weeds.
Apply this product + Atrazine before, during, or after planting, but
before Field corn and Popcorn emerges, according to the rates in
Table 1. Where heavy crop residues exist, add
0.8 to 1.6 pints per acre of an appropriately labeled 3.8 pounds a.i.
per gallon of 2,4-D amine (such as Weedar
® 64, Weedar 64A, DMA-
4 Herbicide, or Formula 40 ®) to the spray tank last and apply in a
minimum of 25 gallons of carrier per acre. As carriers, nitrogen 
solutions and complete liquid fertilizers, applied before Corn 
emergence, enhance burndown of existing weeds, and therefore, are 
recommended instead of water. Add X-77 surfactant at 1 to 2 quarts 
per 100 gallons of diluted spray, or another appropriate sur-factant at 
its recommended rate, or add crop oil concentrate plus 28% liquid 
nitrogen (or equivalent). 
Apply before weeds exceed 3 inches in height. If Alfalfa is present, 
add Dicamba (Banvel) to the spray mixture at 0.33 to 0.5 pint per acre 
and apply before Alfalfa exceeds 6 inches in height. 
For fields with existing sod grasses (e.g., Bromegrass, Orchardgrass, 
Rye, or Timothy), when existing weeds exceed 3 inches in height or 
when very dry conditions exist, add Gramoxone Extra at the rate of 
2.5 pints per acre in place of or in addition to 2,4-D, as indicated 
above. Do not apply Gramoxone Extra in suspension-type liquid 
fertilizer. Observe all directions for use, use precautions, and 
limitations on the respective product labels when applying these 
products in tank-mix combination.
8. TANK-MIXTURE WITH MARKSMAN IN CONSERVATION
TILLAGE — FIELD CORN
In conservation tillage systems where Field corn is planted directly
into a cover crop or previous crop residue, this product + Marksman
will kill most emerged small annual weeds. Apply this product +
Marksman before, during, or after planting, but before Field corn
emergence on Medium and Fine soils with greater than 2.5% organic 
matter. For fields with existing vegetation exceeding 3 inches in
height or when very dry conditions exist, add Gramoxone Extra at its
standard rate. This product + Marksman may be applied post-
emergence to Field corn less than 3 inches tall and before weedy
grasses exceed the 2 leaf stage. As carriers, nitrogen solutions and
complete liquid fertilizers, applied before Corn emergence, enhance
burndown of existing weeds. Do not apply Gramoxone Extra in
suspension-type liquid fertilizer or use on emerged crop. Refer to the
Marksman label and follow all directions, limitations, use precautions, 
and information regarding application and use in Field Corn.
STORAGE AND DISPOSAL
Do not contaminate water, food or feed by storage and disposal. 
Open dumping is prohibited.
PESTICIDE STORAGE:This product may be stored at temperatures 
down to -30°F. For minor spills, leaks, etc., follow all precautions 
indicated on this label and clean up immediately. Take special care 
to avoid contamination of equipment and facilities during cleanup 
procedures and disposal of wastes. PESTICIDE DISPOSAL:
Wastes resulting from the use of this product are toxic. Improper 
disposal of unused pesticide, spray mixture, or rinsate is a violation 
of Federal law. Pesticide, spray mixture, or rinsate that cannot be 
used according to label instructions must be disposed of according 
to federal, state, or local procedures. For guidance in proper disposal 
methods, contact your State Pesticide or Environmental Control 
Agency, or the Hazardous Waste representative at the nearest EPA 
Regional Office. CONTAINER DISPOSAL: Do not reuse empty 
container. Triple rinse (or equivalent), puncture and dispose of in a 
sanitary landfill, or by incineration, or by open burning, if allowed by 
state and local authorities. Keep out of smoke from burning 
containers.
For Bulk and Mini Bulk Containers:
CONTAINER DISPOSAL: Reseal container and offer for 
reconditioning or triple rinse (or equivalent) and offer for recycling or 
reconditioning, or clean in accordance with manufacturer’s 
instructions. Container Precautions: Before refilling, inspect 
thoroughly for damage such as cracks, punctures, bulges, dents, 
abrasions and damaged or worn threads on closure devices. REFILL 
ONLY WITH THIS PRODUCT.The contents of this container cannot 
be removed completely by cleaning. Refilling with material other than 
this product will result in contamination and may weaken the 
container. THIS CONTAINER IS NOT SAFE FOR FOOD, FEED OR 
DRINKING WATER.
CONDITIONS OF SALE AND WARRANTY
Read the entire Directions for Use, Conditions, Disclaimer of 
Warranties and Limitations of Liability before using this product. If 
terms are not acceptable, return the unopened product container at 
once. By using this product, user or buyer accepts the following 
Conditions, Disclaimer of Warranties and Limitations of Liability. OUR

ME-TOO-LACHLOR III PAGE 10 of 
RECOMMENDATIONS FOR USE of this product are based upon 
tests believed reliable. Follow directions carefully. Timing and method 
of application, weather and crop conditions, mixtures with other 
chemicals not specifically recommended and other influencing 
factors in the use of this product are beyond the control of the Seller. 
Buyer assumes all risks of use, storage and handling of this material 
not in strict accordance with directions given herewith.
In no case shall the Manufacturer or the Seller be liable for 
consequential, special or indirect damages resulting from the use or 
handling of this product when such use and/or handling is not in strict 
accordance with directions given herewith. The foregoing is a 
condition of sale by the Seller and is accepted as such by the Buyer. 
ME-TOO-LACHLOR and the DREXEL logo are either trademarks or registered 
trademarks of Drexel Chemical Company. All other product names, brand 
names or trademarks belong to their respective holders.

PAGE 11 of 
APPENDICES
APPENDIX A: COMPATIBILITY TEST
Because liquid fertilizers can vary, even within the same analysis, 
always check compatibility with herbicide(s) each time before 
use. Be especially careful when using complete suspension or fluid 
fertilizers, as serious compatibility problems are more likely to occur. 
Commercial application equipment may improve compatibility in some 
instances. The following test assumes a spray volume of 25 gallons 
per acre For other spray volumes, make appropriate changes in the 
ingredients. Check compatibility using this procedure: 1. Add 1 pint of 
fertilizer to each of 2 one-quart jars with tight lids.
2. To one of the jars, add one-quarter teaspoon or 1.2 milliliters of a
compatibility agent approved for this use, such as Compex ® or
Unite® (one-quarter tsS LV HTXLYDOHQW WR  SWV௘௘ JDOV VSUD\
Shake or stir gently to mix.
3. To both jars, add the appropriate amount of herbicide(s). If more
than one herbicide is used, add them separately with dry
herbicides first, flowables next, and emulsifiable concentrates last.
After each addition, shake or stir gently to thoroughly mix. The
appropriate amount of herbicides for this test follows:
Dry herbicides: For each pound to be applied per acre, add 1.5
level teaspoons to each jar.
Liquid herbicides: For each pint to be applied per acre, add
onehalf teaspoon or 2.5 milliliters to each jar.
Note: For this product in tank-mixtures with Atrazine + Sim-Trol,
use one-third to one-half the amount of Atrazine specified above
and the remainder as Sim-Trol, depending on whether the 1:2 or
1:1 ratio of Atrazine to Sim-Trol is to be applied.
4. After adding all ingredients, put lids on and tighten, and invert each 
jar 10 times to mix. Let the mixtures stand 15 minutes and then
look for separation, large flakes, precipitates, gels, heavy oily film
on the jar, or other signs of incompatibility. Determine if the
compatibility agent is needed in the spray mixture by comparing
the 2 jars. If either mixture separates, but can be remixed readily,
the mixture can be sprayed as long as good agitation is used. If
the mixtures are incompatible, test the following methods of
improving compatibility: (A) slurry the dry herbicide(s) in water
before addition, or (B) add one-half of the compatibility agent to the 
fertilizer and the other one-half to the emulsifiable concentrate or
flowable herbicide before addition to the mixture. If incompatibility
is still observed, do not use the mixture.
APPENDIX B: LOW CARRIER APPLICATION For Broadcast 
Ground Application Only
Use sprayers, such as Ag-Chem RoGator
®, Hagie, John Deere Hi-
Cycle™, Melroe Spra-Coupe, Tyler Patriot™, or Willmar Air Ride ®,
that provide accurate and uniform application. Only water may be 
used as a carrier. Screens in suction and in-line strainers should be 
50 mesh. Manufacturers may require that tip screens as fine as 100 
mesh be used with some nozzles. Use a pump with capacity to: (1) 
maintain up to 35 to 40 psi at the nozzles, and (2) provide sufficient 
agitation in tank to keep mixture in suspension. Use a minimum of 5 
gallons of spray mixture per acre. Maximum recommended sprayer 
speed is 15 mph. Rinse sprayer thoroughly with clean water 
immediately after each use. 
Note: Low pressure nozzles are recommended to reduce drift and 
increase application accuracy. Care should be taken when using 
automatic rate controlling devices to spray the material within the 
rated working pressure and flow ranges of the nozzles selected. 
Nozzle screens should be used when recommended by the 
manufacturer. All nozzles should be placed on 20 inch centers, except 
flooding types which should be placed on 40 inch centers. When Flat 
Fan-type nozzles are used, angles of 80° or 110° are recommended. 
Always read and follow the manufacturer’s directions for optimum 
setup and performance of their nozzles or tips.
APPENDIX C: AERIAL APPLICATION
Apply this product in water alone or in tank-mixtures with Atrazine, or 
Linuron in a minimum total volume of 2 gallons per acre by aircraft. 
This product may also be applied by air in combination with Prowl. 
Avoid application under conditions where uniform coverage cannot 
be obtained or where excessive spray drift may occur. To assure that 
spray will not adversely affect adjacent sensitive nontarget plants, 
apply this product alone or this product + Atrazine by aircraft at a 
minimum upwind distance of 400 feet from sensitive plants, or apply 
this product + Lorox at a minimum upwind distance of 300 feet from 
sensitive plants. Avoid application to humans or animals. Flagmen 
and loaders should avoid inhalation of spray mist and prolonged 
contact with skin.
MANDATORY SPRAY DRIFT MANAGEMENT
GROUND BOOM APPLICATIONS:
• User must only apply with the release height recommended by the
manufacturer, but no more than 4 feet above the ground or crop
canopy.
• Applicators are required to select the nozzles and pressure that
deliver medium or coarser droplets (ASABE S572).
• Do not apply when wind speeds exceed 15 miles per hour at the
application site.
• Do not apply during temperature inversions.
BOOMLESS GROUND APPLICATIONS:
• Applicators are required to select the nozzle and pressure that
deliver medium or coarser droplet size (ASABE S572.3) for all
applications.
• Do not apply when wind speeds exceed 15 miles per hour at the
application site.
• Do not apply during temperature inversions.
AERIAL APPLICATIONS:
• Do not release spray at a height greater than 10 feet above the
ground or vegetative canopy, unless a greater application height is
necessary for pilot safety.
• Applicators are required to select the nozzle and pressure that
deliver medium or coarser droplets (ASABE S641).
• If the wind speed is 10 miles per hour or less, applicators must use
one-half swath displacement upwind at the downwind edge of the
field. When the wind speed is between 11 to 15 miles per hour,
applicators must use three-fourths swath displacement upwind at
the downwind edge of the field.
• Do not apply when wind speeds exceed 15 miles per hour at the
application site. If the wind speed is greater than 10 mph, the boom 
length must be 65% or less of the wingspan for fixed wing aircraft
and 75% or less of the rotor diameter for helicopters. Otherwise,
the boom length must be 75% or less of the wingspan for fixedwing 
aircraft and 90% or less of the rotor diameter for helicopters.
• Do not apply during temperature inversions.
SPRAY DRIFT ADVISORIES
THE APPLICATOR IS RESPONSIBLE FOR AVOIDING OFFSITE 
SPRAY DRIFT.
BE AWARE OF NEARBY NON-TARGET SITES AND 
ENVIRONMENTAL CONDITIONS.
IMPORTANCE OF DROPLET SIZE
An effective way to reduce spray drift is to apply large droplets. Use 
the largest droplets that provide target pest control. While applying 
larger droplets will reduce spray drift, the potential for drift will be 
greater if applications are made improperly or under unfavorable 
environmental conditions.
Controlling Droplet Size – Ground Boom 
Volume - Increasing the spray volume so that larger droplets are 
produced will reduce spray drift. Use the highest practical spray 
volume for the application. If a greater spray volume is needed, 
consider using a nozzle with a higher flow rate. 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’ recommendations for 
setting up nozzles. Generally, to reduce fine droplets, nozzles should 
be oriented parallel with the airflow in flight.
BOOM HEIGHT – Ground Boom 
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.

PAGE 12 of 
ME-TOO-LACHLOR III 
TEMPERATURE AND HUMIDITY
When making applications in hot and dry conditions, use larger 
droplets to reduce effects of evaporation.
TEMPERATURE INVERSIONS
Drift potential is high during a temperature inversion. Temperature 
inversions are characterized by increasing temperature with altitude 
and are common on nights with limited cloud cover and light to no 
wind. The presence of an inversion can be indicated by ground fog 
or by the movement of smoke from a ground source or an aircraft 
smoke generator. Smoke that layers and moves laterally in a 
concentrated cloud (under low wind conditions) indicates an 
inversion, while smoke that moves upward and rapidly dissipates 
indicates good vertical air mixing. 
Avoid applications during temperature inversions.
WIND
Drift potential generally increases with wind speed. AVOID 
APPLICATIONS DURING GUSTY WIND CONDITIONS.
Applicators need to be familiar with local wind patterns and terrain 
that could affect spray drift.
BOOMLESS GROUND APPLICATIONS
Setting nozzles at the lowest effective height will help to reduce the 
potential for spray drift.
HANDHELD TECHNOLOGY APPLICATIONS
Take precautions to minimize spray drift.
APPENDIX D: CENTER PIVOT IRRIGATION APPLICATION
This product alone in tank-mixture with other herbicides on this label, 
which are registered for center pivot application, may be applied in 
irrigation water pre-emergence (after planting, but before weeds or 
crop emerge) at rates recommended on this label. This product also 
may be applied post-emergence to the Field corn crop or Popcorn 
crop and pre-emergence to weeds in Field corn or Popcorn where 
post-emergence applications are allowed on this label. Follow all 
restrictions (height, timing, rate, etc.) to avoid illegal residues. Apply 
this product only through a center pivot irrigation system. Do not apply 
this product through any other type of irrigation system. Crop injury, 
lack of effectiveness, or illegal pesticide residues in the crop can 
result from non-uniform distribution of treated water. If you have 
questions about calibration, you should contact State Extension 
specialists, equipment manufacturers, or other experts. Do not 
connect an irrigation system (including greenhouse systems) used 
for pesticide application to a public water system, unless the pesticide 
label-prescribed safety devices for public water systems are in place. 
A person knowledgeable of the chemigation system and responsible 
for its operation, or under the supervision of the responsible person, 
shall shut down the system and make the necessary adjustments 
should the need arise.
Operating Instructions
1. The system must contain a functional check-valve, vacuum relief
valve, and low-pressure drain appropriately located on the
irrigation pipeline to prevent water-source contamination from
backflow.
2. The pesticide injection pipeline must contain a functional,
automatic, quick-closing check-valve to prevent the flow of fluid
back toward the injection pump.
3. The pesticide injection pipeline must also contain a functional,
normally closed, solenoid-operated valve located on the intake
side of the injection pump and connected to the system interlock
to prevent fluid from being withdrawn from the supply tank when
the irrigation system is either automatically or manually shut
down.
4. The system must contain functional interlocking controls to
automatically shut off the pesticide injection pump when the water 
pump motor stops.
5. The irrigation line or water pump must include a functional
pressure switch which will stop the water pump motor when the
water pressure decreases to the point where pesticide distribution 
is adversely affected.
6. Systems must use a metering pump, such as a positive
displacement injection pump (e.g., diaphragm pump or piston
pump), effectively designed and constructed of materials that are
compatible with pesticides and capable of being fitted with a
system interlock.
7. Do not apply when wind speed favors drift beyond the area
intended for treatment.
8. Prepare a mixture with a minimum of 1 part of water to 1 part
herbicide(s) and inject this mixture into the center pivot system.
Injecting a larger volume of more dilute mixture per hour will
usually provide more accurate calibration of metering equipment.
Maintain sufficient agitation to keep the herbicide in suspension.
9. Meter into irrigation water during entire period of water
application.
10. Apply in one-half to 1 inch of water. Use the lower water volume
(one-half inch) on Coarse-textured soils and the higher volume (1
inch) on Fine-textured soils . More than 1 inch of water at
application may reduce weed control by moving the herbicide
below the effective zone in the soil. Use Precautions: for center
pivot applications: Where sprinkler distribution patterns do not
overlap sufficiently, unacceptable weed control may result.
Where sprinkler distribution patterns overlap excessively, crop
injury may result.
APPENDIX E: DRY BULK GRANULAR FERTILIZERS
Many dry bulk granular fertilizers may be impregnated or coated with 
this product alone or selected tank-mixtures of this product which are 
registered for pre-plant incorporated or pre-plant surface application 
which are used to control weeds in crops on this product label and 
are not prohibited from use on dry bulk granular fertilizers.
When applying this product or this product mixtures with dry bulk 
granular fertilizers, follow all directions for use and use precautions 
on the respective product labels regarding Field corn and Popcorn, 
rates per acre, soil texture, application methods (including timing of 
application), and rotational crops.
All individual state regulations relating to dry bulk granular fertilizer 
blending, registration, labeling, and application are the responsibility 
RI WKH LQGLYLGXDO DQG௘௘RU FRPSDQ\ VHOOLQJ WKH KHUELFLGH௘௘IHUWLOL]HU
mixture.
3UHSDUH WKH KHUELFLGH௘௘IHUWLOL]HU PL[WXUHV E\ XVLQJ DQ\ FORVHGG U X P  
belt, ribbon, or other commonly used dry bulk fertilizer blender. 
Nozzles used to spray this product and this product mixtures onto the 
fertilizer must be placed to provide uniform spray coverage. Care 
should be taken to aim the spray directly onto the fertilizer only and to 
avoid spraying the walls of the blender.
,IWKHKHUELFLGH௘௘IHUWLOL]HUPL[WXUHLVWRRZHWDGGDKLJKO\DEVRUSWLYH
material, such as Agsorb
® or Celatom MP-79®, or similar granular clay 
or diatomaceous earth materials, to obtain a dry, freeflowing mixture. 
Absorptive materials should be added only after the herbicide has 
been thoroughly blended into the fertilizer mixture. Best application 
results will be obtained by using a granule of six-thirtieth particle size 
or of a size similar to that of the fertilizer material being used. 
Generally, less than 2% by weight of absorptive material will be 
needed. Avoid using more than 5% absorptive material by weight.
Calculate amounts of this product, Atrazine, Atrazine + Sim-Trol or 
Sim-Trol by the following formula:
2,000 SWV௘௘$RIOLTXLGpints of liquid or 
lbs.of fertilizer per acre x or flowable = flowable product per 
product ton of fertilizer
2,000 OEV௘௘$RIGU\pounds of dry product 
lbs.of fertilizer per acre x product = per ton of fertilizer
Pneumatic (Compressed Air) Application (This Product Alone): 
High humidity, high urea concentrations, low fertilizer use rates, and 
dusty fertilizer may cause fertilizer mixture to build up or plug the 
distributor head, air tubes, or nozzle deflector plates. To minimize 
buildup, premix this product with Exxon Aromatic 200 at a rate of 1 to 
4 pints per gallon of this product. Aromatic 200 is a 
QRQFRPEXVWLEOH௘௘QRQIODPPDEOHSHWUROHXPSURGXFW$URPDWLFPD\
be used in either a fertilizer blender or through direct injection 
systems. Drying agents should not be used when using Aromatic 200.
Notes: (1) Mixtures of this product and Aromatic 200 must be used 
on dry fertilizer only. Poor results or crop injury may result if these 
mixtures are used in water or liquid fertilizer solutions for spraying 
applications. (2) When impregnating this product in a blender before

PAGE 13 of 
application, a drier mixture can be attained by substituting a drying 
agent for Aromatic 200. The 
ME-TOO-LACHLOR III 
use of Agsorb FG or drying agents of six-thirtieth particle size are 
recommended. (3) Drying agents are not recommended for use with 
the On-The-Go impregnation equipment.
Use Precautions: To avoid potential for explosion, (1) Do not 
impregnate this product or this product mixtures on ammonium 
nitrate, potassium nitrate, or sodium nitrate, either alone or in blends 
with other fertilizers. (2) Do not use this product or this product 
mixtures on straight limestone, since absorption will not be achieved. 
Fertilizer blends containing limestone can be impregnated.
Application
$SSO\WROEVRIWKHKHUELFLGH௘௘IHUWLOL]HUPL[WXUHSer acre. For 
best results, apply the mixture uniformly to the soil with properly 
calibrated equipment immediately after blending. Uniform application 
RIWKHKHUELFLGH௘௘IHUWLOL]HUPL[WXUHLVHVVHQWLDOWRSUHYHQWSRVVLEOHFURS
injury. Non-uniform application may also result in unsatisfactory weed 
control. In areas where conventional tillage is practiced, a shallow 
incorporation of the mixture into the soil may improve weed control. 
On Fine or Medium-textured soils in areas where soil incorporation is 
not planned, i.e., reduced tillage situations or in some conventional 
till situations, make applications approximately 30 days before 
SODQWLQJWRDOORZPRLVWXUHWRPRYHWKHKHUELFLGH௘௘IHUWLOL]HUPL[WXUHLQWR
the soil. On Coarse-textured soils, make applications approximately 
14 days prior to planting.
Use Precaution: To avoid crop injury, do not user the 
KHUELFLGH௘௘IHUWLOL]HUPL[WXUHRQ)LHOGFRUQDQG3RSFRUQZKHUHEHGGLQJ
occurs.
ME-TOO-LACHLOR and the DREXEL logo are either trademarks or registered 
trademarks of Drexel Chemical Company. All other product names, brand 
names or trademarks belong to their respective holders.