Field Exposure of Honeybees to Neonicotinoid Insecticides Studied Using Hettich MIKRO 120 Centrifuge
The Hettich MIKRO 120 microliter centrifuge was used for sample treatment and preparation in the study “Assessment of the Environmental Exposure of Honeybees to Particulate Matter Containing Neonicotinoid Insecticides Coming from Corn Coated Seeds,” published by the American Chemical Society.
In this study, scientists conducted a quantitative analysis of the environmental exposure and intoxication of honeybee colonies with neonicotinoid insecticides. The researchers sought to determine whether the seeds containing neonicotinoid insecticides are responsible for the reported decline of populations of bees during sowing season.
For the study, researchers used seeds produced and marketed in 2008-2010, four seed coating variants, and four hives of apis mellifera ligustica. The coated seeds were sown and bees were exposed to the emissions. Single bees found dead in the field or close to the beehive during the sowing tests were collected, stored at -20 °C and lyophilized for 16 hours before being ground up with a metal pestle for ultrasonic treatment. The resulting extracts were transferred into microliter tubes and centrifuged for 60 minutes at 10,000 rpm using the Hettich MIKRO 120. Results indicated that the environmental release of particles containing neonicotinoids could produce lethal effects on bees with high exposure levels.
The increasing use of agrochemical compounds on different farming systems has been currently associated with loss of biodiversity and other adverse effects on prevailing ecosystems. The study aimed to assist in the ongoing development of effective strategies for the control of environmental pollutants released by crop activities.
Hettich’s comprehensive line of centrifuges enables scientists to conduct important testing and research, such as this study on the effect of insecticide corn seeds on the population of bees. The Hettich MIKRO 120 is a powerful, ultra-compact microliter centrifuge that is safe, quiet and reliable.
Learn more about the Hettich Mikro 120 microliter centrifuge at http://www.hettweb.com/hettich-mikro-120-centrifuge.html .