Tag Archives: FIFRA

Ninth Circuit Orders Ban on Chlorpyrifos

In a 2-1 opinion this August, the Ninth Circuit Court of Appeals instructed US EPA to revoke all tolerances and cancel all registrations for chlorpyrifos, one of the most widely used conventional insecticides in the United States.  If left in place, this ruling will effectively ban domestic use of the popular pesticide, though the Ninth Circuit … Continue Reading

Ninth Circuit Invalidates US EPA’s Unconditional Registration of Sulfoxaflor Insecticide as the Agency Also Faces Other Challenges to Its Pollinator Protection Efforts

On September 10, 2015, in Pollinator Stewardship Council et al. v. EPA, the Ninth Circuit Court of Appeals invalidated US EPA’s unconditional registration of the insecticide sulfoxaflor, concluding that the scientific data relied upon by the agency regarding the product’s potential impact on honey bees did not support approval of the insecticide.  Sulfoxaflor, which is … Continue Reading

Ninth Circuit Invalidates USEPA’s FIFRA Registration of a Nanomaterial Pesticide

In a significant ruling on November 7, the Ninth Circuit Court of Appeals vacated USEPA’s first-ever decision to register a pesticide containing nanosilver as its active ingredient under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA). The Ninth Circuit held that USEPA  failed to follow its own risk assessment rules by concluding that use of the … Continue Reading
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