Clethodim 120G/L EC

3536

March 19, 2025, 10:00 AM

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本稿は、選択性アセチル-CoAカルボキシラーゼ（ACCase）阻害剤であるクレトディムの特性・用途・使用上の要点を体系的に解説。黄色～茶褐色液体の技術品（分子量359.91）で、イネ科雑草に優れた後期除草効果を示し、大豆・ナタネ・綿花など広葉作物への安全性が特徴。2～6葉期の雑草に対し1～3日で効果発現、7～14日で枯死。光・pH（5～9）に安定だが、強酸・強アルカリ下では加水分解。環境負荷は低く、土壌中半減期3～4日、水溶性も低く浸透性が小さい。抵抗性管理や持続可能な農業（省力化・不耕起栽培支援）への貢献も明記。

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:

Technical grade appears as a yellowish-brown to brown liquid.
The 120G/L EC formulation is an amber to dark brown liquid with an aromatic odor.

Solubility:

Technical grade has limited water solubility(approximately 5.45mg/L at 20°C).
Readily soluble in acetone, toluene, ethanol, dichloromethane, and other organic solvents.
The 120G/L EC formulation is an emulsifiable concentrate that forms a stable emulsion in water.

Stability:

Good Chemical stability under normal conditions.
Sensitive to light, may degrade with prolonged exposure to strong light.
Relatively stable in pH range of 5-9, hydrolysis accelerates under strongly acidic or alkaline conditions.
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.

クレトジム 120G/L EC

交渉可能 /Piece

MOQ: 0Piece

Product Model: 12%（W/V）

サプライヤー紹介

Ningbo Feidoodoo E-Commerce Co., Ltd

設立: 2019-10-10

会社規模: 500

最良価格を取得

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

Temperature

Optimal effectiveness between 15-28°C, reduced efficacy below 10°C or above 32°C.

Humidity

Relative humidity greater than 60% facilitates herbicide absorption.

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

Spray Volume

Typically 200-300 L/ha, ensuring thorough coverage.

Nozzle Selection

Flat fan or cone nozzles provide better results.

Pressure Control

Medium pressure (2-3 bar) provides optimal spray quality.

3.1e Adjuvant Addition

Addition of specialized mineral oil or vegetable oil adjuvants (typically 0.5%-1% of spray concentration) significantly enhances efficacy.
Addition of water conditioners such as ammonium sulfate in hard water areas

3.1f Tank-Mix Compatibility

Good compatibility with most broadleaf herbicides and insecticides.
Efficacy may be reduced when mixed with certain foliar fertilizers and plant growth regulators.
Avoid mixing with pesticides containing phosphate components.

3.2 Management Considerations

3.2a Resistance Management

As an ACCase inhibitor (HRAC Group 1), should be incorporated into rotation plans.
Avoid repeated use of herbicides with the same mode of action within the same season.
Consider mixing with herbicides having different modes of action.

3.2b Safety Interval

Pre-harvest safety interval typically 30-60 days, depending on the crop.
No Safety concerns for subsequent crops, no rotation restrictions.

3.2c Environmental Protection

Aquatic Organism Toxicity:

Toxic to aquatic organisms, void contamination of water bodies.

Beekeeping Considerations

Low toxicity to honeybees, but application should be avoided during peak bee activity periods.

Buffer Zone Establishment

Maintain a 10-15 meter buffer zone when applying near water bodies.

3.2d Operational Safety

Personal Protection

Wear gloves, protective clothing, goggles, and other protective equipment when mixing and spraying.

Re-entry Interval

Typically 24 hours, prohibit unprotected re-entry into sprayed areas.

Storage Requirements

Store in a cool, dry, well-ventilated area, avoid direct sunlight.

3.2e Crop-Specific Considerations

Grass crops (Such as wheat, corn, rice) are extremely sensitive to clethodim, use is strictly prohibited.
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

Effectively controls grass weed competition, research indicates soybean yield increases of 15-40%.
Reduces competitive losses in rapeseed production, increasing yields by 10-25%.
Potato and other tuber crop yields increase by 8-20%.

4.1b Improved Crop Quality

Reduces weed competition for light, nutrients, and water, improving crop quality.
Decreases weed seed contamination, enhancing crop purity and marketability.
Experimental data indicates oil content of oilseed crops can increase by 1-3 percentage points.

4.1c Cost-Benefit Analysis

Saves 30-50% in labor costs compared to mechanical weeding.
Reduces the number of herbicide applications and total herbicide usage compared to sole reliance on non-selective herbicides.
High input-output ratio per unit area, with potential return on investment of 1:5-1:12

4.1d Planting System Flexibility

Applicable in various planting patterns, including high-density planting, intercropping, and relay cropping systems.
Facilitates implementation of conservation tillage, complementing no-till or reduced tillage agricultural techniques.
Supports diversified planting systems such as paddy-upland rotation.

4.2 Environmental and Sustainability Impact

4.2a Environmental Compatibility

Safe for non-target broadleaf plants, helping maintain biodiversity.
Short half-life in soil (3-4 days), does not persist long-term in the environment.
Limited leaching to groundwater, low water solubility restricts its migration in the environment.

4.2b Contribution to integrated Management

Allows beneficial broadleaf plants to be retained, providing habitat for natural enemies.
Reduces disruption to soil organisms caused by mechanical weeding.
Can be combined with biological control methods, supporting integrated weed management strategies.

4.2c Support for Sustainable Agriculture

Supports conservation tillage systems, research indicates a 25-45% reduction in soil and water erosion.
Reduces mechanical operations, lowering fuel consumption and carbon emissions.
Promotes crop diversification, enhancing agricultural system resilience.

5.Industry Chain Analysis

5.1 Upstream Industry

5.1a Raw Material Sources

Primary raw Materials include cyclohexenone compounds, 3-chloroallyl, thiols, and other organic chemical intermediates.
Production depends on the fine chemical industry chain, closely related to the petrochemical industry.
Price fluctuations of key raw materials significantly impact production costs.

5.1b Production Technology

Primarily employs multi-step organic synthesis processes.
Medium complexity production technology requiring precise temperature and reaction condition control.
Recent process improvements have focused on increasing yield and reducing byproduct generation.

5.1c Major Production Enterprises

Global major producers include Syngenta, Nufarm, ADAMA, UPL, and others.
Technical grade production is relatively concentrated, with medium-sized and regional producers mainly focusing on formulation processing.
Chinese enterprises have shown increasing market share in clethodim technical production, with rapidly growing exports.

5.2 Downstream Applications

5.2a Formulation Processing

Common formulations include emulsifiable concentrate (EC), microemulsion (ME), and oil dispersion (OD).
120G/L EC is the most commonly used formulation globally, followed by 240G/L EC high-concentration formulations.
Formulation innovation trend

Development of water-based formulations to reduce organic solvent usage and improve environmental performance.

5.2b Combination Product Development

Combinations with broadleaf herbicides expand weed control spectrum, such as combinations with 2,4-D, dicamba, etc.
Development of specialized additives and adjuvants improves product performance, such as specialized oil adjuvants and surfactants.
Customized formulations meet requirements of different regions and crops.

5.2c End Users

Core users are growers of soybeans, rapeseed, cotton, and other economic crops.
Professional orchard and vegetable growers increasingly become an important market.
Agricultural service companies providing unified pest control services, with larger one-time purchase volumes.

5.2d Sales Channels

Distribution through dealer networks is the primary mode.
Centralized procurement by agricultural cooperatives is increasingly common.
The proportion of e-commerce and digital marketing in agrochemical product sales is increasing annually.

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