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 II is an herbicide for use as a pre-plant surfaceapplied, pre-plant incorporated or pre-emergence treatment in water or fluid fertilizer for control of most Annual grasses and certain Broadleaf weeds in Field corn, Sweet corn and Popcorn.

Do not apply under conditions which favor run-off or wind erosion of soil containing the product to non-target areas.

To prevent off-site movement due to run-off or wind erosion:

1) Avoid treating powdery dry or light sand soils when 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.

If the product is incorporated, any supplemental tillage before planting must not exceed the depth of incorporation.

Dry weather following pre-emergence application of the 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.

Use Precautions: Injury may occur following the use of the product under abnormally high soil moisture conditions during early development of the crop. Do not use on Peat or Muck soils. Do not graze or feed forage from treated Field corn, Sweet corn or Popcorn within 30 days from time of application.


The product is a Group 15 herbicide. Any weed population may contain or develop plants naturally resistant to the product and other Group 15 herbicides. Weed species with acquired resistance to Group 15 may eventually dominate the weed population if Group 15 herbicides are used repeatedly in the same field or in successive years as primary method of control for targeted species. This may result in partial or total loss of control of those species by the product or other Group 15 herbicides.

To delay herbicide resistance, consider:

- Avoiding the consecutive use of the product or other target site of action Group 15 herbicides that have a similar target site of action on the same weed species.

- Using tank-mixtures or premixes with herbicides from different target site of action Groups as long as the involved products are all registered for the same use, have different sites of action and are both effective at the tank-mix or prepack rate on the weed(s) of concern.

- Basing herbicide use on a comprehensive IPM program.

- Monitoring treated weed populations for loss of field efficacy.

- Contacting your local extension specialist, certified crop advisors and/or manufacturer for herbicide resistance management and/or integrated weed management recommendations for specific crops and resistant weed biotypes.


Where rates are based on Coarse, Medium or Fine-textured soils it is understood that soil textural classes are generally categorized as follows:

Coarse: Sand, Loamy sand, Sandy loam

Medium: Loam, Silt loam, Silt

Fine: Sandy clay loam, Silty clay loam, Clay loam, Sandy clay, Silty clay, Clay

Within rate ranges in the rate tables and elsewhere on the 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: The product may be applied pre-emergence alone or in combination with tank-mix partners specified on the label following preplant incorporated herbicides when used according to their label directions, 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. Crop damage or clogging of the application device may result.


Application Timing

The product alone or in some tank-mixtures with other labeled herbicides may be applied for weed control in Field corn, Sweet 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, the product alone and some tank-mixtures of the 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 Max or Glyphosate). 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. Weed control will be diminished.

B) Pre-plant Incorporated: Apply the product to the soil and incorporate into the top 2 inches of soil within 14 days before planting. Use 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, Sweet corn and Popcorn will be planted on beds, apply and incorporate the product after bed formation, unless specified otherwise.

C) Pre-emergence: Apply the product during planting (behind the planter) or after planting, but before weeds or Field corn, Sweet corn and Popcorn emerge.


A) CA Only (Field corn, Sweet corn and Popcorn) – Pre-plant Incorporated: Broadcast the product alone or with tank-mix partners listed on the 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 (crosstill). Field corn, Sweet corn and Popcorn may be planted on flat surface or on beds. Caution should be used when forming the beds that only soil from the 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 the product with a tillage implement set to till 2 to 4 inches deep. Care should be taken during tilling to keep the tilled (the product treated) soil on the beds.

B) Pre-emergence: Apply the product after planting. Water with sprinkler or flood irrigation within 7 to 10 days.

C) Fall Application (Only in IA, MN, ND, SD, WI and portions of NE and IL – see specific instructions for timing of application 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, Sweet 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. Illegal residues may result.

D) Ground Application:Apply the product alone or in tank-mixtures by ground equipment in a minimum of 10 gals. of spray mixture per acre, unless otherwise specified.

Use sprayers that provide accurate and uniform application. For tank-mixtures of the 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 (see label).

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 “Aerial Drift Management” and “Aerial Drift Reduction Advisory Information” sections. For information on impregnating dry fertilizer, see “APPENDIX E”. Refer on the label.

Limitations, Restrictions, and Exceptions


Follow instructions for use of the product alone under “APPLICATION PROCEDURES”.


Italian ryegrass (Lolium multiflorum): For control of this weed, apply in the Fall using 1.67 pts. of the product on Medium soils and 2 pts. of the product on Fine soils after harvest of the previous crop but prior to emergence of this weed. A tillage operation may precede application of the product. Do not apply to frozen ground. A Fall and/or Spring tillage may follow application but incorporation depth must not exceed more than 2 to 3 inches. After emergence of this weed, apply the product in tank-mix combination with other herbicides with use directions against this weed. Observe all use precautions and limitations on the labels of each product used in tank-mixture. Tank-mixtures are permitted only in those states where the tank-mix partner is registered.

Observe the specified maximum allowable rate of the product for a crop growing season.

Wild proso millet and Woolly cupgrass: For control of these weeds refer to the Woolly Cupgrass and Wild Proso Millet Control Program section of the label.

Use Precautions for all applications to Corn: To avoid possible illegal residues, do not graze or feed forage from treated areas for 30 days following application. Do not use on Peat or Muck soils.


See General Information section. Control of these weeds can be erratic, due partially to variable weather conditions. Control may be improved by See “PRODUCT INFORMATION” section. Control of these weeds can be erratic, due partially to variable weather conditions. Control may be improved by following these suggested procedures:

A) Use 2 to 2.67 pts./Ac. or the pre-plant surface-applied rates for the product alone or in tank-mixture, if allowed, when making pre-plant incorporated or pre-emergence applications.

B) Thoroughly till moist soil to destroy germinating and emerged weeds. If the product is to be applied pre-plant incorporated, this tillage may be used to incorporate the product if uniform 2-inch incorporation is achieved as recommended under “APPLICATION PROCEDURES”.

C) Plant Field corn, Sweet corn and Popcorn into moist soil immediately after tillage. If the product is to be used pre-emergence, apply at planting or immediately after planting.

D) 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 Finetextured soils. Also, refer to the section on “CENTER PIVOT IRRIGATION APPLICATION” for this method of applying the product.

E) 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.

Florida beggarweed: For partial control of this weed, use a minimum of 2 pts./Ac. and apply pre-emergence.

Restricted Entry Interval

12 hours