Metamifop 4% + Clomazone 4% + Propanil 30% EC

Product Attribute	Specification
Product Name	Metamifop 4% + Clomazone 4% + Propanil 30% EC
Metamifop Content	4%
Clomazone Content	4%
Propanil Content	30%
Total Active Ingredient Content	38%
Formulation	EC — Emulsifiable Concentrate
Product Type	Selective rice herbicide
Metamifop Group	HRAC Group 1
Propanil Group	HRAC Group 5
Clomazone Group	HRAC Group 13
Total Modes of Action	Three
Main Crop Direction	Rice
Main Weed Direction	Annual grasses, selected sedges and broadleaf weeds
Primary Application Timing	Early post-emergence
Primary Uptake	Mainly foliar, with additional early-season activity from Clomazone
Standard MOQ	Normally 1,000 L
Available Documents	COA, SDS, TDS, product specification and available registration-supporting information
Packaging Support	Bottles, larger containers, labels, cartons and export packaging
Supply Type	Bulk B2B supply for import, registration and distribution

Final rice systems, weed claims, rates, water-management requirements, insecticide intervals and crop restrictions must follow the approved destination-market label.

What Is Metamifop + Clomazone + Propanil EC?

This product is a three-active rice herbicide developed for early post-emergence weed control.

Its main commercial role is to manage mixed weed populations in which annual grass weeds, especially barnyardgrass-type species, represent the primary pressure.

The formulation combines:

• Systemic Group 1 grass-weed activity
• Contact Group 5 activity
• Group 13 pigment-biosynthesis inhibition
• Three herbicide modes of action
• One factory-controlled active ingredient ratio

It is not a non-selective herbicide.

Use should be limited to approved rice systems, varieties, crop stages and application programs.

For broader product selection, buyers can review other selective herbicide products.

Why Combine Three Active Ingredients?

Rapid Contact Activity from Propanil

Propanil provides relatively rapid activity on exposed young weed foliage.

It inhibits photosystem II and disrupts normal photosynthesis in susceptible plants. Visible leaf injury may develop faster than with the systemic components.

Good spray coverage remains important because Propanil has strong contact characteristics.

Systemic Grass Control from Metamifop

Metamifop is absorbed through grass-weed foliage and moves toward active growing points.

It inhibits ACCase, stopping the production of fatty acids required for new cell membranes and normal growth.

The weed may stop developing before visible yellowing and tissue decline become obvious.

Pigment Inhibition from Clomazone

Clomazone inhibits deoxy-D-xylulose phosphate synthase and belongs to HRAC Group 13.

Sensitive plants cannot produce normal protective pigments. New tissues may become pale, yellow or white before growth fails.

In this formulation, Clomazone supports early-season activity against selected emerging grasses and broadleaf weeds.

Three Modes of Action in One Premix

The formulation contains:

• Metamifop: Group 1
• Propanil: Group 5
• Clomazone: Group 13

This creates three different herbicide modes of action.

The combination can support resistance-management programs where all three active ingredients remain effective against the target weed population.

It does not guarantee control of every resistant weed.

How Does the Herbicide Work?

Metamifop Mode of Action

Metamifop is an HRAC Group 1 ACCase inhibitor.

It disrupts fatty acid production in susceptible grass weeds.

The practical sequence is:

Foliar uptake → movement to the growing point → ACCase inhibition → growth stops → yellowing and plant decline develop

Metamifop is mainly responsible for systemic grass-weed activity.

Propanil Mode of Action

Propanil belongs to HRAC Group 5.

It inhibits photosystem II, preventing susceptible weeds from using light energy normally.

Symptoms may include:

• Leaf discoloration
• Water-soaked tissue
• Browning
• Necrosis
• Progressive plant decline

Propanil activity depends strongly on coverage, weed size and crop condition.

Clomazone Mode of Action

Clomazone belongs to HRAC Group 13.

It inhibits DXPS, an enzyme involved in pigment production.

Susceptible plants may show:

• White new leaves
• Pale yellow tissue
• Loss of green pigmentation
• Reduced growth
• Plant death

Clomazone should not be described as a PPO inhibitor.

Combined Field Response

The three components provide complementary activity:

Propanil damages exposed young foliage → Metamifop stops grass-weed growing points → Clomazone disrupts pigment formation in susceptible emerging tissue

Visible response varies by active ingredient.

Propanil symptoms may appear relatively quickly, while Metamifop and Clomazone effects may continue developing over a longer period.

Target Weeds

The formulation should be positioned around barnyardgrass and other young annual rice weeds.

Weed Direction	Typical Examples	Main Active Ingredient Contribution
Barnyardgrass Complex	Echinochloa species	Metamifop, Propanil and Clomazone
Other Annual Rice Grasses	Junglerice, sprangletop and label-listed grasses	Mainly Metamifop and Propanil
Young Broadleaf Weeds	Label-listed annual broadleaf weeds	Mainly Propanil and Clomazone
Selected Annual Sedges	Cyperus species and other approved sedges	Mainly Propanil, label-dependent
Newly Emerging Weeds	Susceptible seedling weeds	Clomazone support
Large or Heading Grasses	Advanced grass weeds	Reduced reliability
Resistant Populations	Group 1-, 5- or 13-resistant weeds	Control may be reduced

Exact weed claims must be based on the registration and field data for this 4% + 4% + 30% EC formulation.

Barnyardgrass Control

Barnyardgrass is the main commercial target for this product.

The best results are generally obtained when barnyardgrass is:

• Young
• Actively growing
• Fully exposed above the water
• Not heavily tillered
• Not producing seed heads
• Susceptible to the active ingredients

Late rescue treatment is less reliable.

Large or resistant barnyardgrass may only be suppressed.

Other Annual Grass Weeds

Depending on the local label, the product may also target:

• Junglerice
• Sprangletop species
• Other Echinochloa species
• Other approved rice grass weeds

Metamifop provides the main systemic activity, while Propanil supports rapid foliar injury.

Broadleaf and Sedge Weeds

Propanil and Clomazone may add activity against selected young broadleaf and sedge weeds.

Potential directions may include:

• Small annual broadleaf weeds
• Young Cyperus species
• Other label-listed paddy weeds

The product should not be presented as controlling every sedge or broadleaf species.

Suitable Rice Systems

Use should be restricted to rice systems included on the final product label.

Direct-Seeded Rice

Direct-seeded rice is a strong commercial direction for this formulation.

Potential registered systems may include:

• Dry direct-seeded rice
• Wet direct-seeded rice
• Water-seeded rice

Each system has different crop-establishment and water-management requirements.

A registration for one system does not automatically authorize use in another.

Transplanted Rice

Transplanted-rice use should only be included where supported by the exact registration.

Before treatment, confirm:

• Rice is established
• Roots are active
• Plants are not severely stressed
• Weed foliage is exposed
• Crop and weeds are within the approved stages

Irrigated Paddy Systems

In irrigated rice, water management is part of the herbicide application.

Incorrect drainage or reflooding can reduce weed control, increase rice stress or move herbicide into non-target areas.

For broader field planning, review our rice weed management solutions.

When Should the Herbicide Be Applied?

Early Post-Emergence Timing

The main positioning is early post-emergence treatment.

Apply after target weeds have emerged but before they become large or heavily tillered.

The rice crop must also be within the approved growth stage.

Apply to Young, Actively Growing Weeds

Young weeds normally respond more consistently because they have:

• Smaller growing points
• Fewer tillers
• Greater foliar activity
• Less stored energy
• Better spray exposure

Waiting until grasses begin heading can significantly reduce control.

Confirm Crop Condition

Avoid applying to rice under severe stress from:

• Drought
• Deep flooding
• Salinity
• Disease
• Insect damage
• Nutrient deficiency
• Extreme heat
• Low temperatures
• Previous herbicide injury

Stressed rice may show greater Propanil injury and slower recovery.

Avoid Rescue-Treatment Claims

The product should not be promoted as a guaranteed rescue treatment for:

• Dense mature barnyardgrass
• Heading grass weeds
• Severe mixed infestations
• Resistant weed populations
• Weeds largely submerged under water

Early intervention is more reliable.

Rice Water Management

Water Level Before Application

The field may need to be drained or the water level reduced before spraying.

The objective is to expose enough weed foliage for direct contact.

Before treatment:

• Stop water discharge
• Reduce water according to the label
• Expose grass and broadleaf leaves
• Avoid leaving weeds mostly submerged
• Prevent treated water from moving into other fields

Partially submerged weeds may receive insufficient Propanil and Metamifop coverage.

Reflooding After Application

Reflooding must follow the exact label interval.

Reflooding too early may:

• Wash herbicide from weed foliage
• Reduce systemic uptake
• Move active ingredients away from the target
• Increase environmental exposure

Delaying reflooding too long may stress the crop or alter later weed emergence.

Treated Water Retention

Treated water may need to remain within the field for a defined period.

Do not release treated water into:

• Rivers
• Canals
• Fish ponds
• Adjacent crops
• Wetlands
• Irrigation systems
• Drinking-water sources

The retention period must come from the final registered label.

Application Guidance

The following principles do not replace the approved product directions.

1. Identify the Weed Population

Before application, record:

• Weed species
• Weed density
• Growth stage
• Grass tiller number
• Previous treatment history
• Resistance concerns

Do not select the product only because the field contains “rice weeds.”

2. Confirm the Rice Stage

Check:

• Rice-production system
• Variety
• Crop growth stage
• Root establishment
• Field-water condition
• Existing crop stress

Use only on registered rice types and stages.

3. Review Recent Insecticide Use

Before applying a Propanil-containing herbicide, confirm whether the field has recently received:

• Organophosphate insecticides
• Carbamate insecticides

Unsafe intervals may cause serious rice injury.

4. Calibrate the Sprayer

Inspect:

• Nozzles
• Spray pressure
• Boom height
• Ground speed
• Water volume
• Spray pattern
• Tank agitation

Accurate application is important because overlap can increase Propanil and Clomazone exposure.

5. Prepare the Spray Tank

Where allowed by the label:

1. Clean the tank.
2. Add part of the clean water.
3. Start agitation.
4. Measure the EC product accurately.
5. Add it slowly to the tank.
6. Add approved tank-mix partners only where permitted.
7. Complete filling with water.
8. Maintain agitation during application.

6. Cover Exposed Weed Foliage

Coverage is especially important for Propanil.

Spray should reach:

• Young grass leaves
• Active growing tissue
• Exposed broadleaf weeds
• Sedges above the water surface

7. Avoid Spray Overlap

Overlap may increase:

• Rice leaf burn
• Growth suppression
• Clomazone bleaching
• Residue exposure
• Crop-recovery time

Pay special attention at headlands and field boundaries.

Rice Crop Selectivity and Injury Risks

Rice tolerance depends on application timing, variety, crop health and previous pesticide use.

Temporary Leaf Burn

Propanil may cause temporary leaf spotting or burning under some conditions.

The risk may increase when:

• Temperatures are extreme
• Rice is stressed
• The rate is excessive
• Spray passes overlap
• An unsafe tank mix is used
• A restricted insecticide was recently applied

Temporary leaf burn does not always lead to permanent yield loss, but severe injury must be avoided.

Conditions That Increase Crop Injury

Risk Factor	Why It Matters
High Temperature	May increase rapid foliar injury
Low Temperature	Slows rice metabolism and recovery
Drought Stress	Weakens crop tolerance
Waterlogging	Reduces root activity
Salinity	Adds physiological stress
Disease or Insect Damage	Reduces recovery capacity
Previous Herbicide Injury	Increases combined stress
Spray Overlap	Delivers an excessive dose
Incorrect Adjuvant	May increase uptake
Restricted Insecticide Use	May cause serious Propanil injury

Rice Variety and Growth Stage

Do not assume every rice variety has the same tolerance.

The final registration should confirm:

• Approved rice types
• Growth-stage limits
• Variety restrictions
• Regional use conditions

Propanil Interaction with Insecticides

Propanil can interact with certain insecticides and cause serious rice injury.

Organophosphate Insecticides

Some organophosphate insecticides interfere with the rice plant’s ability to metabolize Propanil safely.

Applying the products too close together may cause:

• Severe leaf burn
• Stunting
• Stand reduction
• Yield loss
• Plant death

The required interval must be taken from the exact product labels.

Carbamate Insecticides

Carbamate insecticides may create a similar crop-safety risk.

Do not tank mix the herbicide with a carbamate insecticide unless the exact registration specifically permits the combination.

Why the Label Interval Matters

Different Propanil products may specify different restricted intervals.

Do not apply a universal number of days based on another formulation.

The correct interval depends on:

• Herbicide formulation
• Insecticide active ingredient
• Application rate
• Rice stage
• Local registration

This restriction should be included in distributor training and end-user label guidance.

Drift, Vapor Movement and Sensitive Crops

Clomazone can cause white or pale tissue on sensitive non-target plants.

Spray Drift

Prevent spray droplets from reaching:

• Vegetables
• Orchards
• Nurseries
• Ornamentals
• Broadleaf crops
• Residential gardens
• Natural vegetation

Vapor Movement

Under some conditions, Clomazone may move beyond the treated area after application.

Sensitive plants may show:

• White new leaves
• Yellowing
• Reduced pigmentation
• Temporary growth effects

Drift-Management Measures

• Follow wind-speed limits.
• Avoid temperature inversions.
• Use an appropriate droplet size.
• Maintain the correct boom height.
• Observe buffer zones.
• Shut off spray near boundaries.
• Monitor wind direction throughout application.
• Avoid spraying toward sensitive crops.

The product should not be described as having no volatility or bleaching risk.

EC Formulation Features

EC means Emulsifiable Concentrate.

The three active ingredients are incorporated into an organic solvent and emulsifier system.

After dilution in water, the formulation should form a stable spray emulsion.

Practical EC Characteristics

The EC formulation can provide:

• Compact liquid packaging
• Accurate factory-controlled ratios
• Rapid mixing in water
• Good foliar deposition
• Suitable handling for commercial spray programs

The complete solvent system determines the final safety, flammability and transport classification.

EC Quality-Control Parameters

Quality Parameter	Buyer Relevance
Metamifop Content	Confirms the declared 4% specification
Clomazone Content	Confirms the declared 4% specification
Propanil Content	Confirms the declared 30% specification
Content Uniformity	Maintains the three-active ratio
Physical Appearance	Identifies sediment, crystals or separation
Emulsifiability	Evaluates mixing performance
Emulsion Stability	Reduces oiling, separation and precipitation
Water Content	Influences storage stability
Acidity or Alkalinity	Affects active ingredients and packaging
Persistent Foam	Influences tank filling
Cold-Storage Stability	Helps prevent crystallization
Heat Stability	Supports warm-market storage
Crystallization Control	Maintains the three components in the formulation
Density	Supports filling accuracy
Packaging Compatibility	Reduces swelling, leakage and seal failure

Low-Temperature Stability

Low temperatures may cause active ingredients or solvents to crystallize.

The product should return to a uniform state under the approved recovery procedure.

Persistent crystals may indicate a formulation or storage problem.

Packaging Compatibility

Bottle, cap, liner, induction seal and label adhesive should be tested against the complete solvent system.

Packaging checks should include:

• Leakage
• Bottle deformation
• Cap swelling
• Seal damage
• Label lifting
• High-temperature storage
• Long-distance shipping

Comparison with Related Rice Herbicides

The three-active product should be positioned according to its specific weed and resistance profile.

Product Direction	Main Positioning	Modes of Action	Main Weed Focus
Clomazone 360 g/L EC	Single-active early-season herbicide	Group 13	Emerging grasses and broadleaf weeds
Cyhalofop-Butyl + Metamifop EC	Systemic grass-focused rice herbicide	Group 1	Annual grass weeds
Metamifop + Clomazone + Propanil EC	Contact, systemic and pigment-inhibition combination	Group 1 + 5 + 13	Barnyardgrass-led mixed weed populations

The three-active formulation is not automatically better in every rice field.

Product selection should consider:

• Dominant weed species
• Weed size
• Propanil resistance
• ACCase resistance
• Rice condition
• Insecticide history
• Registration
• Water management

Buyers requiring a single Group 13 option can review Clomazone 360 g/L EC herbicide.

Tank Mixing and Adjuvants

Tank mixing requires careful review because Propanil has important compatibility restrictions.

Do Not Assume Insecticide Compatibility

Do not mix with organophosphate or carbamate insecticides unless the exact label permits it.

The same restriction may apply to separate applications made too close together.

Adjuvant Selection

The EC formulation may already contain solvents and emulsifiers.

An additional adjuvant should only be used where the product label recommends it.

The wrong adjuvant may increase:

• Rice leaf burn
• Clomazone uptake
• Spray drift
• Foam
• Physical incompatibility

Compatibility Testing

For an unfamiliar mixture:

• Use the same water source
• Follow the planned mixing order
• Use proportional quantities
• Observe for separation or crystals
• Check for heat or excessive foam

Physical compatibility does not confirm crop safety.

Resistance Management

This product combines three HRAC groups.

Group 1 Resistance

Metamifop may provide reduced control of ACCase-resistant grass weeds.

Group 5 Resistance

Propanil-resistant barnyardgrass and other rice weeds occur in some production areas.

Where Group 5 resistance is present, contact activity may be reduced.

Group 13 Resistance

Clomazone resistance is less widespread in many markets, but repeated use can still create selection pressure.

Resistance-Management Principles

• Identify weeds correctly.
• Review field resistance history.
• Apply to young susceptible weeds.
• Use the full registered rate.
• Do not rely on the same premix every season.
• Use effective pre-emergence programs where registered.
• Rotate with other effective HRAC groups.
• Manage paddy water correctly.
• Remove survivors before seed production.
• Use crop rotation where practical.
• Clean equipment between infested fields.
• Test suspicious weed populations.

The three-mode combination supports resistance management only where all three components remain effective.

Rotational Crops and Field Restrictions

Clomazone may contribute soil activity after application.

Rotational restrictions may depend on:

• Product rate
• Soil type
• Soil pH
• Temperature
• Rainfall
• Application date
• Rotational crop

Sensitive crops should not be planted before the registered interval.

There is no universal plant-back period for every country or production system.

Safety and Operator Protection

Handle the product according to the final SDS and approved label.

General Requirements

• Wear the required protective clothing.
• Use chemical-resistant gloves where specified.
• Protect the eyes during mixing.
• Avoid skin contact.
• Do not inhale spray mist or solvent vapor.
• Do not eat, drink or smoke during handling.
• Wash exposed skin after use.
• Follow the approved re-entry interval.
• Do not reuse empty pesticide containers.

The final hazard classification depends on the full EC formulation.

Environmental Precautions

Protect Surface Water

Prevent the product from entering:

• Rivers
• Streams
• Canals
• Fish ponds
• Wetlands
• Wells
• Irrigation systems
• Drinking-water sources

Retain Treated Paddy Water

Follow all water-retention and discharge restrictions.

Do not release treated water into other fields or sensitive habitats.

Protect Non-Target Vegetation

Clomazone drift or vapor may cause bleaching.

Propanil and Metamifop may also affect susceptible non-target plants.

Prevent Runoff

Do not apply when:

• Heavy rainfall is expected
• Water is flowing out of the field
• Boundaries cannot retain treated water
• Drainage channels cannot be protected

Label and Registration Requirements

This 4% + 4% + 30% EC formulation requires its own registration and product label.

A patent example or experimental formulation is not a commercial registration.

The product must not use:

• A Metamifop single-product label
• A Clomazone single-product label
• A Propanil single-product label
• Another three-active formulation rate
• Another insecticide interval
• Another water-management instruction

Information Required for Registration Review

Buyers should provide:

• Destination country
• Rice-production system
• Target rice varieties
• Target grass weeds
• Target sedges
• Target broadleaf weeds
• Required application timing
• Recent insecticide programs
• Water-management requirements
• Preferred package size
• Label language
• Registration status
• Expected annual quantity
• Required technical documents

The label, COA, SDS, TDS and packaging must use consistent product information.

Storage and Transport

Store the product:

• In its original sealed packaging
• In a cool, dry and ventilated warehouse
• Away from sunlight
• Away from excessive heat
• Away from freezing where relevant
• Away from food and animal feed
• Away from ignition sources where required
• In a secure pesticide-storage area
• Under the conditions stated in the SDS

Before shipment, inspect:

• Bottle condition
• Cap security
• Seal integrity
• Leakage
• Label adhesion
• Batch coding
• Fill volume
• Carton strength
• Pallet condition

Transport classification must be confirmed from the final formulation and SDS.

Packaging, Quality Control and Documentation Support

POMAIS supplies this product for bulk import, registration and wholesale distribution.

Packaging Options

Commercial packaging may include:

• 100 mL bottles
• 250 mL bottles
• 500 mL bottles
• 1 L bottles
• 5 L containers
• 10 L containers
• 20 L containers
• Larger commercial containers where suitable
• Induction seals
• Tamper-evident caps
• Multilingual labels
• Retail cartons
• Master cartons
• Batch and expiry coding
• Shipping marks
• Pallet planning

Product Quality Control

Quality-control checks may include:

• Metamifop content
• Clomazone content
• Propanil content
• Content uniformity
• Physical appearance
• Emulsifiability
• Emulsion stability
• Water content
• Acidity or alkalinity
• Persistent foam
• Density
• Crystallization
• Cold-storage stability
• Heat stability
• Packaging compatibility
• Fill-volume accuracy
• Seal integrity
• Batch consistency

Available Documents

Commercial document support may include:

• COA — Certificate of Analysis
• SDS — Safety Data Sheet
• TDS — Technical Data Sheet
• Product Specification
• Packaging Specification
• Available stability information
• Available efficacy data
• Available crop-selectivity data
• Available registration-supporting information
• Batch-related quality documents
• Commercial and shipping documents

Document availability depends on the destination market and registration pathway.

Frequently Asked Questions

Request Product Specifications

To evaluate a Metamifop 4% + Clomazone 4% + Propanil 30% EC project, please provide:

• Destination country
• Company type
• Required quantity
• Preferred package size
• Rice-production system
• Target grass weeds
• Target sedges
• Target broadleaf weeds
• Required application timing
• Recent insecticide program
• Water-management requirements
• Current registration status
• Required label language
• Required technical documents
• Expected purchasing schedule

We will review formulation specifications, packaging feasibility, crop positioning, technical documentation and destination-market requirements before confirming the commercial proposal.

Metamifop 4% + Clomazone 4% + Propanil 30% EC is supplied for professional B2B procurement, registration and wholesale distribution.