About the Authors

Galen P. Dively

galen@umd.edu

Affiliation Department of Entomology, University of Maryland, College Park, MD, United States of America

Michael S. Embrey

Affiliation Department of Entomology, University of Maryland, College Park, MD, United States of America

Alaa Kamel

Affiliation Analytical Chemistry Branch, Biological and Economic Analysis Division, Office of Pesticide Programs, US EPA, Fort George G. Meade, MD, United States of America

David J. Hawthorne

Affiliation Department of Entomology, University of Maryland, College Park, MD, United States of America

Jeffery S. Pettis

Affiliation USDA-ARS Bee Research Laboratory, Beltsville, MD, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GPD DJH JSP. Performed the experiments: GPD MSE AK. Analyzed the data: GPD. Contributed reagents/materials/analysis tools: AK JSP. Wrote the paper: GPD DJH AK.