Thiamethoxam
Description
Thiamethoxam is a highly potent active ingredient belonging to the second-generation neonicotinoid class. It is widely recognized as a systemic insecticide used globally to manage a broad range of agricultural pests. Its versatility makes it suitable for various application methods, including soil drenching, seed treatment, and foliar spray.
The mode of action for thiamethoxam involves binding to nicotinic acetylcholine receptors in the insect central nervous system. This causes overstimulation and subsequent paralysis, leading to the death of the pest. Its systemic nature allows the compound to move through the xylem, effectively protecting both established plants and new growth from feeding insects.
This substance is effectively used against a variety of pests such as aphids, whiteflies, wireworms, Colorado potato beetles, and various leafhoppers. It is applied to crops including cereals, maize, sugar beets, potatoes, and various fruits and vegetables. When used as a seed treatment, it provides early-season protection that is crucial for crop establishment.
A key agronomic benefit of thiamethoxam is its ability to trigger plant-growth-promoting effects, often referred to as the "vigor effect." This process enhances root development and overall plant health, which can lead to higher yields, especially under stressful environmental conditions like drought or low temperatures.
Safety and environmental stewardship are paramount when using thiamethoxam, given its high toxicity to pollinators such as bees. It is strictly prohibited to apply the product during flowering or when blooming weeds are present in the field. Users must wear protective equipment to minimize exposure and strictly follow label instructions to prevent drift and environmental contamination.
- Excellent systemic properties and translocation within the plant.
- Long-lasting residual control of target pests.
- Compatibility with various fungicide formulations.
- Significant vigor effect on seedling development.
- Effective against both soil-dwelling and foliage-feeding insects.
Status in the European Union
Not approved in the EU
- CAS number
- 153719-23-4
- Category (EU)
- IN - Insecticide
- Approved from
- 01.02.2007
- Approval until
- 30.04.2019
- ADI
- 0.026 mg/kg bw/day
- ARfD
- 0.5 mg/kg bw
- AOEL
- 0.08 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.