The Problem of BeesNeonicotinoid insecticides are commonly used since the 1990s. These pesticides may also be a primary cause of the dying off of two bee populations. Two new studies in Science found that even small doses of these pesticides, which effect the insect's central nervous system, impact bee behavior and, ultimately, their survival.
Research and Theories
. . . exposed colonies of the bumble bee Bombus terrestris in the lab to field-realistic levels of the neonicotinoid imidacloprid, then allowed them to develop naturally under field conditions. Treated colonies had a significantly reduced growth rate and suffered an 85% reduction in production of new queen.