Demeton-S-methyl
Description
Demeton-S-methyl is a potent active ingredient belonging to the organophosphate chemical class, widely utilized as a systemic insecticide and acaricide. Its chemical structure allows for rapid uptake by plant tissues, making it an essential tool for protecting a variety of agricultural and horticultural crops from pervasive infestations.
The primary mechanism of action involves the inhibition of the enzyme acetylcholinesterase within the nervous system of target pests. By blocking this critical enzyme, the substance causes an accumulation of neurotransmitters, which results in uncontrolled nerve impulses, paralysis, and the subsequent death of insects and mites exposed to the chemical.
This compound is primarily used to combat sucking pests, including aphids, spider mites, thrips, and leafhoppers. It is applied to diverse crops such as vegetables, fruit trees, and various field crops. Because it is systemic, the active ingredient translocates through the plant's vascular system, ensuring that the entire plant is shielded from damage, including new growth.
Application strategies require precise timing and adherence to recommended rates to ensure efficacy and minimize environmental impact. It is crucial to apply the product during periods of low wind to prevent drift and ensure proper coverage. Integrated pest management protocols are recommended to mitigate the risk of developing resistance among pest populations.
Strict safety precautions must be followed due to the high toxicity of Demeton-S-methyl to humans and non-target organisms like bees. Operators must wear appropriate protective clothing, respirators, and chemical-resistant gloves during handling and application. Strict adherence to pre-harvest intervals is mandatory to comply with food safety standards and regulations.
Status in the European Union
Not approved in the EU
- CAS number
- 919-86-8
- Category (EU)
- IN - Insecticide
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.