2026: Evaluating the Effects of Pesticide Reductions and Restrictions on Biodiversity (TNC)
As populations of birds and butterflies continue to plummet across North America, a growing body of evidence points to pesticides as one important driver. Though multiple incentives to restrict or reduce the use of pesticides have been implemented from local to state levels, outcomes for biodiversity remain poorly tracked. Researchers from Cornell and The Nature Conservancy will (1) evaluate the effectiveness of pesticide restrictions and mitigation strategies, (2) identify which approaches and scales of implementation can best deliver positive outcomes for biodiversity, and (3) work with partners to develop outreach materials for municipalities, state agencies, input companies, and decision-makers.
Cornell: Laura Melissa Guzman (Cornell CALS/Entomology), Catherine Kling (Dyson School of Applied Economics and Management), and Amanda Rodewald (Cornell CALS/Ashley School of Global Development and the Environment; Cornell Lab of Ornithology)
TNC: Kris Johnson (Director of Agriculture, North America)