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Pest Manag Sci

Title:		"Behavioral effects of sublethal exposure to a combination of beta-cyfluthrin and imidacloprid in the bed bug, Cimex lectularius L"
Author(s):		Crawley SE; Kowles KA; Gordon JR; Potter MF; Haynes KF;
Address:		"Department of Entomology, University of Kentucky, Lexington, KY, USA. Texas A&M Agrilife Extension, Lubbock, TX, USA"
Journal Title:		Pest Manag Sci
Year:		2017
Volume:		20160729
Issue:		3
Page Number:		598 - 603
DOI:		10.1002/ps.4342
ISSN/ISBN:		1526-4998 (Electronic) 1526-498X (Linking)
Abstract:		"BACKGROUND: Bed bugs (Cimex lectularius) are blood-feeding insect pests with public health relevance. Their rapid evolution of resistance to pyrethroids has prompted a shift to combination products that include both a pyrethroid and neonicotinoid insecticide. Insecticides have both a direct impact on mortality and an indirect effect on behavior. Thus, we assessed the sublethal effects of a widely used combination product containing beta-cyfluthrin (a pyrethroid) and imidacloprid (a neonicotinoid), as unexpected behavioral changes after exposure have been known to affect efficacy of insecticides. RESULTS: We found that bed bugs exposed to sublethal doses of a combination product containing beta-cyfluthrin and imidacloprid did not feed as effectively as untreated bugs. Their locomotion behavior was also reduced. However, aggregation in response to the presence of conspecific harborages was not affected by sublethal exposure. CONCLUSION: Bed bugs exhibit behavioral changes after sublethal exposure to a combination product that could affect pest management choices and outcomes. A reduction in host-finding efficiency and feeding could complement the lethal effects of the insecticide. Alternatively, reduced locomotion following exposure could limit ongoing contact with insecticide deposits. However, an overall reduction in movement indicates that treatments are unlikely to cause dispersal of bugs to adjacent dwellings. (c) 2016 Society of Chemical Industry"
Keywords:		Animals Bedbugs/*drug effects/*physiology Chemotaxis/drug effects Feeding Behavior/drug effects Female Imidazoles/*pharmacology Insecticide Resistance Insecticides/*pharmacology Locomotion/drug effects Male Neonicotinoids Nitriles/*pharmacology Nitro Comp;
Notes:		"MedlineCrawley, Sydney E Kowles, Katelyn A Gordon, Jennifer R Potter, Michael F Haynes, Kenneth F eng England 2016/06/21 Pest Manag Sci. 2017 Mar; 73(3):598-603. doi: 10.1002/ps.4342. Epub 2016 Jul 29"