The study, published in the journal Nature Communications, analyzed changes in the population of 62 wild bee species, comparing them with patters of oilseed rape crops between 1994 and 2011, as the use of commercial use of neonicotinoids became widespread.
The findings suggest that systemic pesticides contributed to a “large-scale and long-term decline” in wild bee species distributions and communities. Species that regularly forage on treated rape fields declined, on average, three times as much as species that feed on a wider variety of plants, showing that oilseed rape is a principle mechanism of neonicotinoid exposure among wild bee communities. Continue reading “Neonicotinoid pesticides implicated in decline of wild bees across the UK”→
Study shows even low levels of neonicotinoids affect foraging skills
There’s more evidence showing how exposure to pesticides affects bumblebees. In anew study, scientists found that low levels of pesticides can affect which flowers bumblebees choose and potentially hindering their ability to forage for nectar and pollen.
The findings were published in the journal Functional Ecology and will help inform the use of pesticides in agriculture. The research is important because bees and other insects pollinate many of the world’s important food crops and wild plants. But pollinators are declining due to a variety of causes, showing the need for more research and safeguards. Continue reading “Environment: Are pesticides making bumblebees dumber?”→
Government Accountability Office highlights needs for more research on pesticide impacts
U.S. government investigators said the EPA and the Department of Agriculture need to take more steps to address threats to wild bee populations, starting with a better monitoring program to assess the impacts of agricultural pesticides.
Activist groups claims scientists are being silenced and harassed; new petition calls for resignations
By Bob Berwyn
A broad coalition of food safety, consumer, and environmental groups is pressing the U.S. Department of Agriculture to come clean on its research into the environmental impacts of bee-killing neonicotinoid pesticides.
According to a petition being delivered to the USDA on March 10, high-level officials in the USDA have been censoring their agency’s own scientific reports when the findings don’t align with the interests of the pesticide industry. The groups also say the USDA is silencing and harassing scientists who are warning of the dangers of neonicotinoids. Continue reading “Is the USDA suppressing science on pesticide impacts?”→
The research focused on native bees because there is limited information on their exposure to pesticides. In fact, little is known about how toxic these pesticides are to native bee species at the levels detected in the environment.
“We found that the presence and proximity of nearby agricultural fields was an important factor resulting in the exposure of native bees to pesticides,” said USGS scientist Michelle Hladik, the report’s lead author. “Pesticides were detected in the bees caught in grasslands with no known direct pesticide applications.” Continue reading “Neonicotinoid pesticide impacts extend to wild bees”→
Beekeepers accuse pesticide industry of trying to ‘hijack’ public policy
FRISCO — The public comment period for proposed EPA rules on bee-killing pesticides may be over, but the battle over pesticide policies will continue, as conservation groups suspect that the pesticide industry may have exerted undue influence over the rule-making process.