The Syngenta pesticide Thiamethoxam is suspected of killing bees. A scientific study promoted by the company intends to prove that the pesticide is harmless but internationally recognised experts have their doubts. (SRF ECO, swissinfo.ch) br The death of bees threatens the agricultural world. A possible cause is a neonicotinoid type of pesticide. It generate billions in worldwide sales for the chemical industry. It is also found in Thiamethoxam produced by the Basel-based agrochemical giant Syngenta. Its use is temporarily banned in Switzerland and in the EU.