The U.S. Environmental Protection Agency (EPA) has opened a 60-day public consultation period, beginning on 26 September 2024, to assess the environmental impact of the herbicide bicyclopyrone. The draft biological evaluation (BE) examines the potential risks posed by this pesticide to federally listed endangered and threatened species, as well as designated critical habitats across the United States. The public has until 25 November 2024 to submit their comments, which could influence future regulatory decisions regarding the herbicide.
What Is the Draft Biological Evaluation of Bicyclopyrone?
The EPA's draft biological evaluation (BE) of bicyclopyrone, a selective herbicide primarily used in corn production, seeks to determine whether the pesticide could negatively affect endangered species or critical habitats. This BE is part of a wider regulatory process under the Endangered Species Act (ESA). According to this law, the EPA must ensure that any pesticide registered under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) does not jeopardise the continued existence of protected species or degrade critical habitats.
The current draft BE suggests that bicyclopyrone may pose risks to certain species and habitats. Should these adverse impacts be confirmed in the final evaluation, the EPA will enter formal consultations with the U.S. Fish and Wildlife Service and the National Marine Fisheries Service to explore potential mitigation measures.
Why the Public Consultation Period Matters
The EPA’s decision to hold a 60-day public consultation allows stakeholders—including environmental organisations, industry representatives, and the general public—to provide their input on the findings. Public feedback plays a crucial role in shaping the final BE and may lead to adjustments in the EPA’s risk assessment of bicyclopyrone. This feedback will be used to refine the evaluation before the agency makes its final regulatory decision.
Regulatory and Environmental Implications
Should the final evaluation conclude that bicyclopyrone poses a threat to endangered species or critical habitats, significant changes to the herbicide’s usage may be required. These could include amendments to product labelling, usage restrictions, or prohibitions in areas where sensitive species are at risk. As part of its assessment, the EPA reviewed various environmental factors, including the likelihood of spray drift, runoff, and the accumulation of the herbicide in aquatic systems.
The herbicide’s effects on mammals, birds, aquatic species, and plants were also scrutinised. In particular, the EPA’s draft analysis identified potential risks to aquatic invertebrates, fish, and plant species, many of which are essential for maintaining biodiversity and ecosystem health.
