Description
Esfenvalerate is a synthetic pyrethroid insecticide known for its high potency and wide-spectrum activity against agricultural pests. It acts as a powerful contact and stomach poison, effectively managing various insect populations in diverse crop systems. Its chemical structure allows for stable performance in field conditions, making it a reliable choice for modern crop protection.
The primary mode of action is the disruption of the sodium channel function in the nerve cells of target insects. By causing prolonged opening of these channels, esfenvalerate leads to repetitive nerve discharges, resulting in immediate paralysis and eventual death. This rapid onset of action is often referred to as the knockdown effect, providing quick cessation of crop feeding.
This active ingredient is registered for use on a variety of crops, including cereals, corn, potatoes, vegetables, and fruit orchards. It targets a broad range of pests such as beetles, moths, and caterpillars. Its versatility allows growers to address multiple pest threats with a single application, optimizing labor and input costs during the growing season.
Application requires uniform coverage of the target foliage to maximize efficacy. While esfenvalerate is resistant to wash-off from rain, environmental conditions such as extreme heat can influence the degradation rate. It is strongly recommended to incorporate this substance into an Integrated Pest Management (IPM) program, alternating it with different insecticide classes to mitigate the risk of resistance development.
- Powerful knockdown effect on targeted insects.
- Excellent residual activity on treated surfaces.
- Highly effective at relatively low dosage rates.
- Compatibility with many common agricultural formulations.
Safety is a critical aspect when working with esfenvalerate, as it exhibits significant toxicity to honeybees and aquatic life. Applications must be strictly avoided during bloom periods or near water bodies to protect beneficial pollinators and ecosystems. Personnel must utilize full personal protective equipment and strictly adhere to pre-harvest intervals to ensure safety standards and regulatory compliance.
Status in the European Union
Approved in the EU
- CAS number
- 66230-04-4
- Category (EU)
- IN - Insecticide
- Approved from
- 01.01.2016
- Approval until
- 31.05.2026
- ADI
- 0.0175 mg/kg bw/day
- ARfD
- 0.0175 mg/kg bw
- AOEL
- 0.011 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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