Linuron 450g/L SC & 500g/L SC Herbicide

Product Attribute	Specification
Active Ingredient	Linuron
Product Type	Selective herbicide
Chemical Class	Phenylurea
Herbicide Group	HRAC Group 5
Mode of Action	Photosystem II inhibition
Main Activity	Pre-emergence and early post-emergence weed control
Target Plants	Annual broadleaf weeds and selected grasses
Crop Use	Registered crop programs only
Formulation Options	WP, SC and other registered formulations
Application Method	Soil-applied or foliar application depending on label
Supply Support	COA, SDS, TDS and technical documents

The final crop list, application rate, weed spectrum and use restrictions must follow the approved local label.

What Is Linuron Herbicide?

Linuron is a selective herbicide from the substituted urea chemical family.

It is mainly positioned for controlling susceptible annual weeds in agricultural crops where selective weed management is required.

Unlike non-selective herbicides that damage most green plants, Linuron works selectively by exploiting differences between crops and weeds in tolerance, absorption, metabolism and growth response.

Its main characteristics include:

• Selective weed control
• Phenylurea chemistry
• HRAC Group 5 classification
• Photosystem II inhibition
• Pre-emergence activity
• Early post-emergence activity

Linuron should be selected according to:

• Crop tolerance
• Weed species
• Weed growth stage
• Soil characteristics
• Weather conditions
• Local registration requirements

How Does Linuron Work?

HRAC Group 5 Photosystem II Inhibition

Linuron belongs to HRAC Group 5 herbicides.

Its primary mode of action is inhibition of photosystem II.

Photosystem II is a key part of the photosynthesis process, allowing plants to convert light energy into chemical energy.

Linuron interferes with electron transport within photosystem II.

As a result, susceptible weeds cannot maintain normal photosynthetic activity.

This leads to:

• Reduced energy production
• Disruption of plant growth
• Progressive leaf damage
• Weed death

Because Linuron acts on photosynthesis, environmental conditions such as light intensity, soil moisture and weed growth stage can influence field performance.

Selective Herbicide Activity

Linuron is designed for selective weed management.

Its effectiveness depends on the difference between:

• Crop tolerance
• Weed sensitivity
• Application timing
• Soil and climate conditions

Correct crop selection and label compliance are essential for maintaining crop safety.

What Weeds Does Linuron Control?

Linuron is mainly used against susceptible annual broadleaf weeds and selected annual grasses.

The exact weed spectrum depends on:

• Crop
• Formulation
• Application timing
• Weed population
• Local registration

Annual Broadleaf Weeds

Where registered, Linuron may be used against susceptible broadleaf weeds such as:

• Pigweed species
• Lambsquarters
• Chickweed
• Mustard species
• Other annual broadleaf weeds

Performance is influenced by weed size and growth stage.

Small, actively growing weeds are generally easier to control than large established plants.

Selected Annual Grasses

Some annual grasses may also be affected depending on:

• Species sensitivity
• Application timing
• Soil conditions
• Registered use pattern

Linuron should not be positioned as a universal grass herbicide.

For grass-control programs, growers should confirm whether the target species is listed on the approved label.

Linuron Crop Applications

Linuron has historically been used in different crop systems where selective weed control is required.

However, crop registration varies significantly between countries.

Potential crop directions may include:

Crop Category	Weed Management Role
Vegetable Crops	Selective annual weed control where registered
Root Crops	Pre-emergence weed suppression where approved
Field Crops	Registered crop-specific weed programs
Other Specialty Crops	Market-specific applications

The same Linuron formulation cannot automatically be transferred between different crops.

Before commercialization or use, confirm:

• Registered crops
• Approved weed spectrum
• Maximum application rate
• Application timing
• Residue requirements

Pre-Emergence and Early Post-Emergence Use

Linuron is commonly positioned around two application timings.

Pre-Emergence Weed Control

Applied before weed emergence, Linuron can provide residual activity against susceptible weeds during early crop establishment.

Performance depends on:

• Soil moisture
• Soil type
• Weed seed distribution
• Rainfall after application
• Crop planting conditions

Early Post-Emergence Weed Control

When applied after weed emergence, Linuron performance depends on:

• Weed size
• Weed growth stage
• Environmental conditions
• Crop tolerance

Early treatment is generally preferred because mature weeds are more difficult to control.

Linuron Formulation Options

Different formulations provide different handling characteristics.

Linuron WP

WP (Wettable Powder) formulations contain fine active ingredient particles that disperse in water before application.

Important quality factors include:

• Wetting ability
• Suspensibility
• Particle size
• Storage stability

Linuron SC

SC (Suspension Concentrate) formulations provide liquid handling convenience with suspended active ingredient particles.

Important quality factors include:

• Suspension stability
• Redispersibility
• Viscosity
• Particle distribution
• Storage performance

The final formulation selection depends on:

• Market preference
• Application equipment
• Registration requirements
• Packaging requirements

Application Guidance

Linuron application should always follow the registered local label.

A successful weed-management program should consider:

1. Identify Target Weeds

Correct weed identification is the first step.

Different weeds have different sensitivity to Linuron.

2. Select the Correct Crop

Only use Linuron on crops with confirmed tolerance and registration.

3. Choose Appropriate Timing

Application timing affects:

• Weed control level
• Crop safety
• Residual performance

4. Consider Soil Conditions

Soil characteristics can influence herbicide availability.

Important factors include:

• Soil texture
• Organic matter
• Moisture
• Rainfall

5. Follow Registered Rates

Do not transfer one application rate between different countries or crops.

6. Monitor Field Performance

Evaluate:

• Weed control level
• Crop response
• Weather influence
• Possible resistance issues

Resistance Management

Linuron belongs to HRAC Group 5 herbicides.

Repeated use of the same herbicide mode of action may increase selection pressure and contribute to resistant weed populations.

Resistance management should include:

• Rotating herbicides with different modes of action
• Using integrated weed management practices
• Combining chemical and cultural control methods
• Preventing weed seed production
• Monitoring reduced herbicide performance

Do not increase application rates to overcome suspected resistance.

Reduced control may result from:

• Resistant weed populations
• Incorrect timing
• Poor coverage
• Environmental conditions
• Incorrect weed identification

Factors Affecting Linuron Performance

Linuron effectiveness is influenced by several field conditions.

Soil Conditions

Important factors include:

• Soil texture
• Organic matter
• Moisture availability
• Rainfall after application

Weed Growth Stage

Young weeds are generally more susceptible than mature plants.

Weather Conditions

Temperature, rainfall and sunlight can influence herbicide activity.

Application Quality

Uniform application improves consistency.

Important factors include:

• Correct calibration
• Spray coverage
• Water quality
• Equipment condition

Regulatory and Market Suitability

Linuron registration status varies between countries.

Some markets have restricted or discontinued certain Linuron uses, while other markets may maintain approved crop applications.

Before importing or commercializing Linuron products, customers should confirm:

• Active ingredient approval status
• Registered crops
• Approved weed claims
• Maximum residue requirements
• Import regulations
• Label requirements
• Environmental restrictions

POMAIS supports product documentation and market evaluation according to customer requirements and destination regulations.

Quality Control for Linuron Formulations

For professional herbicide supply, active ingredient content alone is not enough.

Important formulation-quality parameters include:

Quality Parameter	Importance
Active Ingredient Assay	Confirms Linuron content
Particle Size	Influences dispersion and performance
Suspensibility	Maintains uniform spray concentration
Wetting Time	Important for WP preparation
Viscosity	Important for SC handling
pH	Supports formulation stability
Moisture Content	Important for WP storage
Redispersibility	Supports SC storage recovery
Foam Characteristics	Improves spray preparation
Packaging Compatibility	Supports transport stability

Final product specifications should follow the actual formulation data.

Storage, Packaging and Documentation

POMAIS supplies Linuron formulations with commercial packaging and technical-document support.

Available project support may include:

• COA
• SDS
• TDS
• Product specification
• Packaging specification
• Stability information
• Registration-support documents
• Export documents

Packaging options may include:

• Small retail packs
• Medium agricultural containers
• Large commercial packaging

Final packaging depends on:

• Formulation type
• Market requirements
• Order quantity
• Registration needs

Frequently Asked Questions

What is Linuron herbicide?

Linuron is a selective phenylurea herbicide used for registered crop weed-control programs.

What is Linuron mode of action?

Linuron inhibits photosystem II activity in susceptible weeds and belongs to HRAC Group 5.

Is Linuron a selective herbicide?

Yes. Linuron is positioned as a selective herbicide when used on registered crops.

Is Linuron pre-emergence or post-emergence?

Linuron can be used for pre-emergence and early post-emergence weed control depending on the crop and label.

What weeds does Linuron control?

Linuron controls susceptible annual broadleaf weeds and selected grasses where registered.

What HRAC group is Linuron?

Linuron belongs to HRAC Group 5.

Is Linuron a phenylurea herbicide?

Yes. Linuron is a substituted urea herbicide.

Does Linuron control all grasses?

No. Grass control depends on species sensitivity, formulation, timing and registration.

What crops use Linuron?

Crop uses vary by country and registration. Always confirm approved crop labels before application.

What formulations of Linuron are available?

Common formulations include WP and SC, depending on market requirements.

Does Linuron require resistance management?

Yes. Repeated use of HRAC Group 5 herbicides can increase resistance pressure, so rotation and integrated weed management are recommended.

Is Linuron approved worldwide?

No. Linuron regulatory status differs between countries.

What documents can POMAIS provide?

POMAIS can provide available COA, SDS, TDS, product specifications and registration-support documents according to project requirements.

Request Linuron Herbicide

For a Linuron herbicide project, please provide:

• Destination country
• Target crop
• Target weeds
• Required formulation
• Required quantity
• Preferred packaging
• Registration requirements
• Label language
• Technical document requirements

POMAIS will review the formulation requirements, market conditions and documentation needs before confirming supply options.

Linuron herbicide provides selective weed management through HRAC Group 5 photosystem II inhibition, with formulation quality and market-specific support for agricultural weed-control programs.