Full TGIF Record # 81979
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Web URL(s):http://www.bioone.org/bioone/?request=get-document&issn=0022-0493&volume=095&issue=04&page=0722
    Last checked: 11/2005
    Access conditions: Item is within a limited-access website
Publication Type:
i
Refereed
Author(s):Gels, Jerome A.; Held, David W.; Potter, Daniel A.
Author Affiliation:Department of Entomology, University of Kentucky, Lexington, Kentucky
Title:Hazards of insecticides to the bumble bees Bombus impatiens (Hymenoptera: Apidae) foraging on flowering white clover in turf
Section:Ecotoxicology
Other records with the "Ecotoxicology" Section
Source:Journal of Economic Entomology. Vol. 95, No. 4, August 2002, p. 722-728.
Publishing Information:Lanham, MD: Entomological Society of America
# of Pages:7
Keywords:TIC Keywords: Apidae
Abstract/Contents:"Insecticides used on turf are sometimes applied to areas with flowering weeds that attract honey bees and native pollinators. We tested residual effects of such treatments on colony vitality and behavoir of the bumble bees Bombus impatients Cresson foraging on the turf containing white clover, Trifolium repens L. Imidacloprid, a systemic choloronicotinyl used for preventive control of root-feeding grubs, was applied as granules, followed by irrigation, or sprayed as wettable powder, with or without irrigation. Hives were confined on the plots in large field cages after residues had dried and colony vitality (i.e., numbers of brood, workers, and honey pots, and weights of queens, workers and whole colonies with hives) was evaluated after 28-30 d. Workers' foraging activity and defensive response to an aggressive stimulus also were evaluated. In another test, weedy turf was sprayed with chlorpyrifos, cabaryl, or cyfluthrin at labeled rates for surface-feeding pests. Bee colonies were confined on the plots after residues had dried, with effects on colony vitality evaluated after 14 d. Finally, foraging activity of wild bumble bees was monitored on open plots to determine if insecticide-treated areas were avoided. Imidacloprid granules, and imidacloprid sprays applied with posttreatment irrigation, had no effect on colony vitality or workers' behavoir, suggesting that such treatments pose little systemic or residual hazard to bumble bees. In contrast, exposure to dry, nonirrigated residues of all the aformentioned insecticides had severe impact on colony vitality. Foraging workers did not avoid insecticide-treated areas. Means by which turf managers can reduce hazards of insecticide applications to pollinators are discussed."
Language:English
References:29
Note:Tables
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gels, J. A., D. W. Held, and D. A. Potter. 2002. Hazards of insecticides to the bumble bees Bombus impatiens (Hymenoptera: Apidae) foraging on flowering white clover in turf. J. Econ. Entomol. 95(4):p. 722-728.
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Web URL(s):
http://www.bioone.org/bioone/?request=get-document&issn=0022-0493&volume=095&issue=04&page=0722
    Last checked: 11/2005
    Access conditions: Item is within a limited-access website
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MSU catalog number: SB 931 .A1 J6
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