Description
Acetochlor is a potent pre-emergence herbicide belonging to the chloroacetamide chemical class. It is widely employed in agricultural practices globally to manage a variety of annual grasses and select broadleaf weeds, ensuring that the primary crop has an unobstructed environment to establish itself without competition for essential soil nutrients.
The primary mechanism of action for acetochlor involves inhibiting the growth of young weeds by interfering with the synthesis of proteins and nucleic acids. When applied to the soil, it is absorbed by the emerging seedlings of weeds. This disruption prevents cell division and root development, ultimately leading to the death of the weed before it can break through the soil surface.
Acetochlor is primarily used for the protection of corn, soybeans, and sunflowers. The performance of this herbicide is significantly influenced by soil conditions; specifically, a well-prepared seedbed with fine soil structure and adequate moisture levels is essential. Moisture is required to activate the active ingredient, creating a uniform herbicide barrier in the top layer of the soil.
In terms of application, it is typically applied either pre-plant incorporated or post-plant pre-emergence. Agronomists often recommend tank-mixing acetochlor with other active substances to broaden the spectrum of weed control, particularly when dealing with resistant weed biotypes or mixed infestations. Proper timing of the application is crucial for maximizing the residual protective effect.
- Persistent soil protection
- Strong control of grassy weeds
- Dependent on soil moisture for activation
- Effective foundation for weed management
Safety precautions are mandatory when handling acetochlor, as it is classified as a hazardous substance. Operators must wear appropriate protective clothing, gloves, and respiratory gear. Due to its potential impact on aquatic ecosystems, it is vital to maintain appropriate buffer zones near water bodies and strictly follow label instructions regarding disposal and application rates.
Status in the European Union
Not approved in the EU
- CAS number
- 34256-82-1
- ADI
- 0.0036 mg/kg bw/day
- ARfD
- 1.5 mg/kg bw
- AOEL
- 0.02 mg/kg bw/day
Regulatory status data: EU Pesticides Database © European Union, CC BY 4.0. EU status is for reference only and does not replace national registration in your country.
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