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Assessment of Sublethal Effects of Imidacloprid on Honey Bee Colony Health Funded by NAPPC (Burt’s Bees) and USDA/ARS (Beltsville) Galen Dively and Mike Embrey, Dept. of Entomology, UMD Jeff Pettis, USDA/ARS (Beltsville). Functional Hive Experiment. Imidacloprid Residues.
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Assessment of Sublethal Effects of Imidacloprid on Honey Bee Colony Health Funded by NAPPC (Burt’s Bees) and USDA/ARS (Beltsville) Galen Dively and Mike Embrey, Dept. of Entomology, UMD Jeff Pettis, USDA/ARS (Beltsville)
Imidacloprid Residues Final Colony Status
Summary of First Year Results • No differences in colony performance and bee strength. • No effects on foraging activities. • Some colonies experienced missing queens but not related to treatments. • Currently conducting lab studies to determine if imidacloprid-exposed bees are less fit. • Will repeat functional hive experiment and fitness studies in 2009