Description
Mode of action
Ethofumesate belongs to the benzofuran chemical class and acts as a selective systemic herbicide. The substance is actively absorbed both by the root system of germinating weeds and through the coleoptile and hypocotyl of seedlings.
The growth inhibition mechanism is based on blocking cell division by inhibiting lipid synthesis and disrupting the cuticle formation process. This leads to tissue deformation and stops the development of susceptible plant species.
Inside the plant, the substance suppresses mitosis in meristematic tissues, making it highly effective during the initial stages of weed development. It works effectively in the soil, providing a long-lasting protective effect.
The preparation has the ability to inhibit the photosynthesis process, which further suppresses weeds, reducing their competitiveness against the main crop. This ensures the cleanliness of fields during critical growth phases.
The substance is characterized by moderate persistence, allowing it to remain in the upper soil layer long enough to control the "second flush" of weeds without creating risks for subsequent crops in the rotation.
What it targets
The primary use of ethofumesate is to control a broad spectrum of annual broadleaf and some grass weeds. It shows particularly high efficiency against cleavers (Galium aparine).
The product is actively used in sugar beet, fodder beet, and table beet crops. Due to its high selectivity, it does not cause phytotoxicity in these crops when guidelines are followed.
The spectrum of sensitive weeds includes species such as shepherd's purse, lamb's quarters, chickweed, and other plants frequently encountered in beet fields.
Using this herbicide allows for a significant reduction in field weed infestation, which directly correlates with increased root crop yields and improved market quality.
Applying the preparation is most justified as part of tank mixtures, which allows expanding the range of controlled weed species and minimizing the risk of resistance development.
Rates and timing
Ethofumesate application rates depend on the biological characteristics of field infestation, soil type (humus content), and the growth stage of sugar beets at the time of treatment.
To achieve maximum effect, split applications of the product are recommended. This allows controlling weeds at different germination times, ensuring prolonged protection.
Usually, treatment is performed at the cotyledon stage of weeds, as they are most vulnerable to the active substance through the root system during this period.
When used on heavy clay soils, dosages may be increased according to the manufacturer's instructions to ensure the necessary concentration of the substance in the soil solution.
An important requirement is the uniform distribution of the working solution over the field surface, achieved by using high-quality equipment and optimal weather conditions for spraying.
Restrictions
Ethofumesate is sensitive to temperature regimes: at extremely high temperatures, efficacy may decrease, and at very low temperatures, a delay in the expression of the herbicidal effect is possible.
It is not recommended to carry out treatment if the crop is under stress (frost, drought, pest damage), as this may cause temporary stunting of the beets.
When preparing tank mixtures, it is mandatory to perform a physical and chemical compatibility test to avoid sediment formation or a reduction in the activity of the components.
Particular attention should be paid to preparing the water for the working solution: its hardness and pH can influence the stability of the active substance in the sprayer tank.
Adherence to personal hygiene rules when working with pesticides is mandatory. The use of personal protective equipment is necessary to prevent skin and mucosal contact with the substance.
Status in the European Union
Approved in the EU
- CAS number
- 26225-79-6
- Approved from
- 01.11.2016
- Approval until
- 31.10.2031
- ADI
- 1.0 mg/kg bw/day
- ARfD
- Not appl.
- AOEL
- 2.5 mg/kg bw/day
EU status is for reference only and does not replace national registration in your country.
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