Neonicotinoids are a relatively new class of insecticides that share a common mode of action that affect the central nervous system of insects, resulting in paralysis and death. They includeimidacloprid, acetamiprid, clothianidin, dinotefuran, nithiazine, thiacloprid and thiamethoxam. According to the EPA, uncertainties have been identified since their initial registration regarding the potential environmental fate and effects of neonicotinoid pesticides, particularly as they relate to pollinators. Studies conducted in the late 1990s suggest that neonicotinic residues can accumulate in pollen and nectar of treated plants and represent a potential risk to pollinators. [Beyond Pesticides]
To prevent another bee killing, the Oregon Department of Agriculture is also temporarily banning the use of 18 pesticide products. Pesticides containing dinotefuran can no longer be used on plants, or at least not until the ban is lifted.
ODA officials said they’re acting “in an abundance of caution” in issuing the ban. Director Katy Coba said she hopes the decision minimizes the potential for more bee deaths connected to pesticide products while the state continues to investigate and gather information. – Fox
“We’re not trying to get it off the shelves, or trying to tell people to dispose of it, we’re just telling people not to use it,” said Bruce Pokarney, a spokesperson for the department of agriculture. [Oregon Live]
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