Navigating the Trade-off between Pest Management and Pollinator Conservation

Originally introduced in the mid-1990s, neonicotinoid insecticides (‘neonics’) experienced an exponential rise in use on farmland over the past two decades and are now the most widely used insecticides in the world. Unfortunately, the attributes that make neonics versatile and powerful pest management tools also make non-targeted insects vulnerable to their effects. Specifically, neonics have been implicated as a factor in sudden die-offs of managed honeybee hives and long term declines in native bee populations. Thus, farmers growing pollinator-dependent crops, which represents a large fraction of all fruits and vegetables, are confronted with a potential trade-off between two competing aspects of crop production: effective pest suppression and successful pollination. The overarching goal of this $3.6 million, 5-year project is to develop holistic pest-pollinator joint management regimes that are effective, profitable, and sustainable. Specifically, this project will: identify insecticide management strategies that simultaneously optimize pest suppression while minimizing non-target exposure to pollinators; determine the consequences of neonic exposure for honey and wild bee health; and assess the ecological and socioeconomic trade-offs among pollinators, pests, crop yield, and farm profitability resulting from alternative pest management regimes. This interdisciplinary research partnership involves collaborators from the George Perkins Marsh Institute at Clark University, Purdue University, Michigan State University, Ohio State University, and the University of New Hampshire. Marsh Institute assistant director Dana Bauer is leading the economic analysis of grower preferences, profitability, and decision-making.