Bumble bee study does not affect neonicotinoid conclusions, EFSA says

EFSA has identified several weaknesses in a study, published by the UK Food and Environment Research Agency (FERA), which suggested that neonicotinoid pesticides do not have a major effect on bumble bee colonies under field conditions. Given these weaknesses, the Authority considers that the study does not affect the conclusions reached by EFSA regarding risks for bees related to the use of the neonicotinoid pesticides thiamethoxam, clothianidin and imidacloprid, published in January 2013.