Thursday, June 21, 2012

Clothianidin Studies

The neonicotinoids are insecticides developed with the hope of being less harmful to wildlife and beneficial insects than the available insect killers, the pyrethroids and organophosphates. The neonicotinoids came into widespread use with the understanding that they would not kill beneficial insects like the honey bee and bumblebee. The use of neonicotinoids coincides with the die-off of honey bees and significant reductions in bumblebees. Two studies linking honey bees’ having difficulty in navigating from flowers to the hive confirm that neonicotinoids impair bees’ senses. The studies are reported by The Washington Post at The studies find that bee hives exposed to low levels of neonicotinoid insecticides have fewer bees and bumble bees produce markedly fewer queens. Bayer CropScience, a manufacturer of neonicotinoids, calls the studies inconsistent with their findings. Beekeepers and the Center for Food Safety petitioned the Environmental Protection Agency to ban the use of clothianidin that the EPA approved using Bayer’s tests.

Neonicotinoids are generally applied as a seed coating. The systemic action of the insecticide causes the poison to be distributed throughout the plant including the nectar and pollen, highly attractive bee foods. Traces of neonicotinoids are taken back to the bee hive by foraging bees. While beekeepers in the United States are taking annual honey bee colony losses of one third each year, the effects are often more subtle than total colony failures. Colonies are often described as simply not thriving. Bee populations may be low; bees may have shortened life expectancies; or hives may lack sufficient bees of appropriate foraging age. Each of these situations leads to colonies that are susceptible to diseases and parasites. With small populations, colonies don’t produce surpluses of honey. Bee hives used for pollination service fail when graded according to bee population. With the ever increasing use of neonicotinoid insecticides that have been shown to have a detrimental effect on pollinators, the crops, lawns, and golf courses flourish while honey bee colonies, native bees, and beneficial insects quietly disappear.


  1. pecticide use very important for wilde life so when you use those medicine we must take care everytime.with my best wishes.

  2. gosh it makes me sick what commercial farming has done to the environment, to the critters we rely on. i hope for the expedient banning of these neonicotinoids, and that they are not replaced by something equally as horrible.

  3. These companies that claim to feed the world will be the downfall of real food. We lost a hive and another is struggling. Our hive coach attributes the loss to the corn field next door. Thanks for the helpful article.