Clethodim 120G/L EC
3401
March 19, 2025, 10:00 AM
Guide
Highlights at a glance
A comprehensive guide to clethodim, a selective post-emergence herbicide used for grass weed control in broadleaf crops. This document covers its chemical properties, formulation characteristics, and mode of action—specifically ACCase inhibition leading to disrupted fatty acid synthesis and plant death. It highlights key performance features such as systemic translocation, rapid symptom development (1–3 days), rainfastness within 1 hour, and no soil residual activity. Major applications include soybean, rapeseed, cotton, vegetables, orchards, and ecological restoration, with emphasis on efficacy against annual and perennial grasses like foxtail and quackgrass. Critical use factors such as optimal application timing (2–6 leaf stage), temperature (15–28°C), adjuvant use, and tank-mix compatibility are detailed. The guide also addresses resistance management, environmental safety (toxic to aquatic life, low bee risk), personal protection, and crop selectivity—strictly avoiding use on grass crops. Benefits include yield increases (up to 40%), improved crop quality, labor savings, and support for sustainable practices like conservation tillage. Upstream production relies on fine chemical intermediates, with major global manufacturers identified, while downstream trends focus on eco-friendly formulations and integrated weed management strategies.
1.Product Characteristics
1.1 Basic Properties and Physicochemical Characteristics
Chemical Name: (±)-2-[(E)-1-[(E)-3-chloroallyloxyimino]propyl]-5-[2-(ethylthio)propyl]-3-hydroxycyclohex-2-enone
Molecular Formula: C₁₇H₂₆ClNO₃S
Molecular Weight: 359.91 g/mol
Physical State:
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Technical grade appears as a yellowish-brown to brown liquid.
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The 120G/L EC formulation is an amber to dark brown liquid with an aromatic odor.
Solubility:
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Technical grade has limited water solubility(approximately 5.45mg/L at 20°C).
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Readily soluble in acetone, toluene, ethanol, dichloromethane, and other organic solvents.
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The 120G/L EC formulation is an emulsifiable concentrate that forms a stable emulsion in water.
Stability:
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Good Chemical stability under normal conditions.
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Sensitive to light, may degrade with prolonged exposure to strong light.
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Relatively stable in pH range of 5-9, hydrolysis accelerates under strongly acidic or alkaline conditions.
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Avoid contact with strong oxidizers, strong acids, and strong bases.
1.2 Performance Characteristics
1.2a Selective Herbicidal Function
Effectively controls grass weeds while exhibiting safety toward broadleaf crops, suitable for soybeans, rapeseed, cotton, and various other broadleaf crops.
1.2b Post-Emergence Treatment Properties
As a foliar-applied herbicide, it is absorbed through plant leaves and stems, providing excellent control of emerged grass weeds.
1.2c Well-Defined Mode of Action
Inhibits acetyl-CoA carboxylase (ACCase) activity, disrupting fatty acid synthesis, leading to grass plant death.
1.2d Systemic Translocation
After absorption by weeds, translocates within the plant, providing control of rhizomatous perennial grasses.
1.2e Balance of Rapid Action and Persistence
Visible effects typically appear 1-3 days after application, with complete weed desiccation within 7-14 days, yet without soil residual activity.
1.2f Rainfastness
Herbicidal efficacy is essentially unaffected if no rainfall occurs within 1 hour after application, enhancing usage flexibility.
1.2j Formulation Advantages
The 120G/L EC formulation includes effective surfactants and adjuvants, enhancing spray solution adherence, penetration, and absorption efficiency.
1.2h Broad-Spectrum Control of Grass Weeds
Provides excellent control of annual grass weeds such as foxtail, crabgrass, barnyard grass, blackgrass, wild oats, and perennial grass weeds (Such as quackgrass and water grass).
2.Major Applications
2.1 Agricultural Applications
2.1a Soybean Field Weed Control
One of the preferred herbicides for controlling major grass weeds in soybean fields, typically applied at rates of 75-90g.
2.1b Oilseed Crop Protection
Widely used in rapeseed, sunflower, peanut, and other oilseed crops for effective control of grass weeds in broadleaf crops.
2.1c Specialty Economic Crops
Applied in cotton, flax, sugar beet, potato, carrot, and other specialty economic crops.
2.1d Vegetable Crops
Used in onion, garlic, tomato, pepper, and various other vegetable crops to control grass weeds.
2.1e Legume Crops
Applied in peas, green beans, broad beans, and various other leguminous crops.
2.1f Herbicide Rotation and Combination
Used as an important component of resistance management strategies, in rotation or combination with herbicides having different modes of action.
2.2 Non-Agricultural Applications
2.2a Horticulture and Landscape Maintenance
Used for selective removal of grass weeds in ornamental plants, lawns, and landscaped areas.
2.2b Orchard and Vineyard Management
Applied as a directed spray herbicide for inter-row weed control in fruit trees and vineyards.
2.2c Nursery Applications
Used for grass weed control in forestry and ornamental plant nurseries.
2.3 Specialized Applications
2.3a Control of Resistant Weeds
Management of resistant grass weeds, particularly foxtail and crabgrass that have developed resistance to other herbicides.
2.3b Pre-Establishment Treatment for Lawns
Elimination of grass weeds before new lawn establishment, creating favorable conditions for lawn establishment.
2.3c Ecological Restoration Projects
Selective control of invasive grass species in ecological restoration projects.
Clethodim 120G/L EC
Negotiable
/Piece
MOQ: 0Piece
Product Model: 12%（W/V）
Supplier Profile
Ningbo Feidoodoo E-Commerce Co., Ltd
Established: October 10, 2019
Company Size: 500
Get Best Price
3.Critical Factors
3.1 Factors Affecting Efficacy
3.1a Application Timing
Optimal efficacy occurs when weeds are in active growth phase (2-6 leaf stage), early application (2-3 leaf stage) is particularly important for certain difficult to control weeds.
3.1b Environmental conditions
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Temperature
Optimal effectiveness between 15-28°C, reduced efficacy below 10°C or above 32°C.
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Humidity
Relative humidity greater than 60% facilitates herbicide absorption.
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Soil Moisture
Weed sensitivity to herbicide decreases under drought stress.
3.1c Dosage Control
Application rates should be adjusted according to weed species, growth stage, and density, generally ranging from 60-120g.
3.1d Application Technique
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Spray Volume
Typically 200-300 L/ha, ensuring thorough coverage.
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Nozzle Selection
Flat fan or cone nozzles provide better results.
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Pressure Control
Medium pressure (2-3 bar) provides optimal spray quality.
3.1e Adjuvant Addition
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Addition of specialized mineral oil or vegetable oil adjuvants (typically 0.5%-1% of spray concentration) significantly enhances efficacy.
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Addition of water conditioners such as ammonium sulfate in hard water areas
3.1f Tank-Mix Compatibility
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Good compatibility with most broadleaf herbicides and insecticides.
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Efficacy may be reduced when mixed with certain foliar fertilizers and plant growth regulators.
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Avoid mixing with pesticides containing phosphate components.
3.2 Management Considerations
3.2a Resistance Management
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As an ACCase inhibitor (HRAC Group 1), should be incorporated into rotation plans.
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Avoid repeated use of herbicides with the same mode of action within the same season.
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Consider mixing with herbicides having different modes of action.
3.2b Safety Interval
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Pre-harvest safety interval typically 30-60 days, depending on the crop.
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No Safety concerns for subsequent crops, no rotation restrictions.
3.2c Environmental Protection
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Aquatic Organism Toxicity:
Toxic to aquatic organisms, void contamination of water bodies.
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Beekeeping Considerations
Low toxicity to honeybees, but application should be avoided during peak bee activity periods.
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Buffer Zone Establishment
Maintain a 10-15 meter buffer zone when applying near water bodies.
3.2d Operational Safety
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Personal Protection
Wear gloves, protective clothing, goggles, and other protective equipment when mixing and spraying.
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Re-entry Interval
Typically 24 hours, prohibit unprotected re-entry into sprayed areas.
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Storage Requirements
Store in a cool, dry, well-ventilated area, avoid direct sunlight.
3.2e Crop-Specific Considerations
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Grass crops (Such as wheat, corn, rice) are extremely sensitive to clethodim, use is strictly prohibited.
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Sensitivity variations may exist among certain crop varieties, small-scale trials are recommended before first use.
4.Industry Benefits
4.1 Agricultural Production Benefits
4.1a Yield Protection
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Effectively controls grass weed competition, research indicates soybean yield increases of 15-40%.
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Reduces competitive losses in rapeseed production, increasing yields by 10-25%.
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Potato and other tuber crop yields increase by 8-20%.
4.1b Improved Crop Quality
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Reduces weed competition for light, nutrients, and water, improving crop quality.
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Decreases weed seed contamination, enhancing crop purity and marketability.
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Experimental data indicates oil content of oilseed crops can increase by 1-3 percentage points.
4.1c Cost-Benefit Analysis
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Saves 30-50% in labor costs compared to mechanical weeding.
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Reduces the number of herbicide applications and total herbicide usage compared to sole reliance on non-selective herbicides.
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High input-output ratio per unit area, with potential return on investment of 1:5-1:12
4.1d Planting System Flexibility
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Applicable in various planting patterns, including high-density planting, intercropping, and relay cropping systems.
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Facilitates implementation of conservation tillage, complementing no-till or reduced tillage agricultural techniques.
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Supports diversified planting systems such as paddy-upland rotation.
4.2 Environmental and Sustainability Impact
4.2a Environmental Compatibility
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Safe for non-target broadleaf plants, helping maintain biodiversity.
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Short half-life in soil (3-4 days), does not persist long-term in the environment.
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Limited leaching to groundwater, low water solubility restricts its migration in the environment.
4.2b Contribution to integrated Management
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Allows beneficial broadleaf plants to be retained, providing habitat for natural enemies.
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Reduces disruption to soil organisms caused by mechanical weeding.
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Can be combined with biological control methods, supporting integrated weed management strategies.
4.2c Support for Sustainable Agriculture
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Supports conservation tillage systems, research indicates a 25-45% reduction in soil and water erosion.
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Reduces mechanical operations, lowering fuel consumption and carbon emissions.
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Promotes crop diversification, enhancing agricultural system resilience.
5.Industry Chain Analysis
5.1 Upstream Industry
5.1a Raw Material Sources
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Primary raw Materials include cyclohexenone compounds, 3-chloroallyl, thiols, and other organic chemical intermediates.
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Production depends on the fine chemical industry chain, closely related to the petrochemical industry.
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Price fluctuations of key raw materials significantly impact production costs.
5.1b Production Technology
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Primarily employs multi-step organic synthesis processes.
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Medium complexity production technology requiring precise temperature and reaction condition control.
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Recent process improvements have focused on increasing yield and reducing byproduct generation.
5.1c Major Production Enterprises
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Global major producers include Syngenta, Nufarm, ADAMA, UPL, and others.
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Technical grade production is relatively concentrated, with medium-sized and regional producers mainly focusing on formulation processing.
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Chinese enterprises have shown increasing market share in clethodim technical production, with rapidly growing exports.
5.2 Downstream Applications
5.2a Formulation Processing
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Common formulations include emulsifiable concentrate (EC), microemulsion (ME), and oil dispersion (OD).
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120G/L EC is the most commonly used formulation globally, followed by 240G/L EC high-concentration formulations.
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Formulation innovation trend
Development of water-based formulations to reduce organic solvent usage and improve environmental performance.
5.2b Combination Product Development
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Combinations with broadleaf herbicides expand weed control spectrum, such as combinations with 2,4-D, dicamba, etc.
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Development of specialized additives and adjuvants improves product performance, such as specialized oil adjuvants and surfactants.
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Customized formulations meet requirements of different regions and crops.
5.2c End Users
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Core users are growers of soybeans, rapeseed, cotton, and other economic crops.
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Professional orchard and vegetable growers increasingly become an important market.
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Agricultural service companies providing unified pest control services, with larger one-time purchase volumes.
5.2d Sales Channels
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Distribution through dealer networks is the primary mode.
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Centralized procurement by agricultural cooperatives is increasingly common.
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The proportion of e-commerce and digital marketing in agrochemical product sales is increasing annually.
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