Molecule of the Week

Thiamethoxam

October 15, 2012

Thiamethoxam is a broad-spectrum neonicotinoid insecticide. It was developed by Syngenta, which had to settle a patent suit by Bayer before marketing it. Thiamethoxam acts by direct contact with insects and by insects’ consumption of treated plants. Recently, M. Henry and colleagues at the French agency that combines the functions of FDA, EPA, and OSHA found that thiamethoxam harms honeybees. For this reason, it may soon be banned in France.

More about this molecule from CAS, the most authoritative and comprehensive source for chemical information.