Workshop: Neonicotinoid Insecticides: Exposure, Impacts and Management

Tue, March 10, 2020, 1:00 pm - Tue, March 10, 2020, 5:00 pm
CHI Health Center Room 209

Workshop Organizers

Lisa Webb, U.S. Geological Survey Missouri Coop Research Unit
Doreen Mengel, Missouri Department of Conservation

Neonicotinoids are a class of insecticide widely adopted for agricultural use throughout North America and Europe, in large part because they are selectively more toxic to insects than vertebrates. Neonicotinoids are highly water soluble and have reported half-lives of greater than 1000 days. The combination of these characteristics in concurrence with their widespread use suggests horizontal movement of neonicotinoids via runoff into surrounding terrestrial habitats, as well as various surface waters such as streams and wetlands. However, neonicotinoids continue to receive increased scrutiny due to their implication in pollinator declines and as potential aquatic toxicants. The continued growth of seed coatings has increased concern over neonicotinoid fate and effects across a range of scales

This workshop will explore aspects of neonicotinoid insecticides that include: 1) occurrence in the environment and organisms; 2) direct and indirect effects on non-target organisms; 3) trophic-level impacts; (4) and management practices that can reduce or mitigate the effects of neonicotinoids. The workshop will conclude with a synthesis on the potential for neonicotinoids to impact non-target taxa in aquatic and terrestrial ecosystems and facilitate a discussion on actions natural resource managers and agencies can take to reduce these effects.


1:00 pm

Introduction to Neonicotinoids and Questions From a Natural Resource Agency
Doreen Mengel, Missouri Department of Conservation

1:15 pm

Distribution of Neonicotinoids in Midwestern Wetlands and Agroecosystems
Lisa Webb, U.S. Geological Survey

1:30 pm

Evaluating Avian Exposure to Neonicotinoid Treated Seeds in Agricultural Landscapes
Charlotte Roy, Minnesota Department of Natural Resources

1:45 pm

Impacts of Neonicotinoid Seed-Treatment Use on Native Pollinator Abundance and Diversity in Midwest Agroecosystems
Anson Main, California Department of Pesticide Regulation

2:00 pm

Impacts of Neonicotinoids to Aquatic Invertebrates
Kyle Kuechle, Ducks Unlimited

2:15 pm

Effects of Imidacloprid Exposure on Aquatic and Terrestrial Salamanders
Sara Crayton, West Virginia University

2:30-3:00 pm

Coffee Break

3:00 pm

Effects of the Neonicotinoid Insecticide Imidacloprid on Physiology and Survival of Captive Female and Fawn White-Tailed Deer
Jon Jenks, South Dakota State University

3:15 pm

Management Practices for Reducing Neonicotinoids in Non-Target Ecosystems
Lisa Webb, U.S. Geological Survey

3:30 pm

Neonicotinoid Seed Treatments of Corn and Soybeans: The Pros and Cons of Insurance Pest Management - The New IPM
Christian Krupke, Purdue University

3:45-4:45 pm pm

Panel Discussion and Questions