The insecticide clothianidin affects different species of bees in different ways. While it has no demonstrably negative effect on honeybees, it disrupts the growth of bumble bees and threatens the survival of entire colonies. However, the insecticide does not make either species more susceptible to diseases and pathogens, as a massive field study in Sweden shows. The international team, including scientists from Martin Luther University Halle-Wittenberg (MLU) and the Swedish University of Agricultural Sciences, reports its latest findings in the renowned journal Nature Communications.