11
Jul
(Beyond Pesticides, July 11, 2014) In addition to previous research on the direct impacts of pesticides on pollinators and other beneficials, a recent study published by Dutch scientists establishes an additional indirect link between neonicotinoid use and insect-eating birds. The report, which came out on Wednesday, provides evidence that neonicotinoids, a class of systemic pesticides, are indirectly hurting larger creatures by reducing insect prey populations such as mosquitoes and beetles. Researchers found that in certain areas of the Netherlands where water is contaminated with high concentrations of imidacloprid, a commonly used neonicotinoid, bird populations tend to decline by an average of 3.5 percent every year. Further analysis found that this spatial pattern of decline appeared only after the introduction of imidacloprid to the Netherlands in the mid-1990s, even after correcting for land-use changes that have been known to affect bird populations in farmland. “To our surprise we did find a very strong effect on birds”, said lead author of the study, Caspar Hallmann, a Ph.D. student from Radboud University in the Netherlands, to Reuters. In fact, according to the study, which was published in the journal Nature, nine of 15 bird species studied only eat insects and all feed insects […]
Posted in Bayer, Chemicals, Corporations, Imidacloprid, neonicotinoids, Persistence, Pollinators, Syngenta | No Comments »
25
Jun
(Beyond Pesticides, June 25, 2014) Following last week’s celebration of “National Pollinator Week” and a presidential memorandum mandating federal action on bees, the first wide-scale scientific analysis has been released that links  two classes of pesticides  to declining bee populations. Twenty-nine scientists representing many disciplines reviewed over 800 peer-reviewed publications  on the impacts of systemic pesticides, and are recommending  more restrictions on neonicotinoid pesticides. This report is the single most comprehensive study of  neonicotinoids ever  undertaken. The “Worldwide Integrated Assessment (WIA)” ”” undertaken by the Task Force on Systemic Pesticides ”” documents significant harms to bees and ecosystems. While some aspects of this report have been broadly acknowledged  before (e.g. risks to honey bees), some, including risks to earthworms, birds and aquatic invertebrates, have not. The analysis focuses not only on impacts to particular  organisms and habitats, but also on  biodiversity and ecosystem impacts, taking a holistic view of pesticide effects. The scientists are calling for new, dramatic restrictions on bee-harming pesticides in the United States and beyond. The report  finds that the current regulatory system has failed to consider the full  range of pesticide effects. “This report should be a final wake up call for American regulators who have […]
Posted in Agriculture, Announcements, Bayer, Chemicals, Clothianidin, Corporations, dinotefuron, Fipronil, Imidacloprid, Litigation, National Politics, neonicotinoids, Oregon, Persistence, Pollinators, State/Local, Syngenta, Thiamethoxam | No Comments »
