Imidacloprid Residues in Pollen Loads Collected by Honeybees on

Cranberry

Dan Schiffhauer, David Cunningham & Chris Riley

Ocean Spray Cranberries, Inc.

Cranberry Rootworm – Rhabdopterus picipes(Coleoptera: Chrysomelidae)

Phyllophaga species(Coleoptera: Scarabaeidae)

Japanese Beetle – Popillia japonica

Oriental Beetle – Anomala orientalis

Coleoptera: Scarabaeidae

Neonicotinoids

2011

2012

Site Collection Date Imidacloprid (ppb)

Control 1 6/20/2012 Non-Detect

Control 2 6/22/2012 Non-Detect

Treatment Site 1 6/14/2012 2.8±0.3

Treatment Site 1 6/18/2012 2.5±0.3

Treatment Site 1 6/20/2012 8.0±1.0

Treatment Site 1 6/22/2012 5.6±0.7

Treatment Site 1 6/25/2012 7.7±0.9

2012 Imidacloprid Residue Levels

Insecticide residues in pollen and nectar of a curcurbit crop and their potential exposure to pollinators.Galen P. Dively and Alaa Kamal. Journal of Agricultural and Food Chemistry. 2012 60(18), 4449 – 4456.

Site Year Treated Collection DateImidacloprid

(ppb)

Control Site 1 N/A 6/21/2103 Non-Detect

Control Site 1 N/A 6/27/2013 Non-Detect

Treatment Site 1 2011 6/21/2103 0.6±0.1

Treatment Site 1 2011 6/27/2013 0.7±0.1

Treatment Site 1 2011 7/4/2013 0.4±0.1

Treament Site 2 2012 6/21/2013 1.6+±0.2

Treament Site 2 2012 6/24/213 3.6±0.4

Treament Site 2 2012 6/27/2013 4.8±0.6

Treament Site 2 2012 7/1 + 7/4/2013 3.6±0.4

2013 Imidacloprid Residue Levels

Insecticide residues in pollen and nectar of a curcurbit crop and their potential exposure to pollinators.Galen P. Dively and Alaa Kamal. Journal of Agricultural and Food Chemistry. 2012 60(18), 4449 – 4456.