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Front Physiol

Title:		Pest insect olfaction in an insecticide-contaminated environment: info-disruption or hormesis effect
Author(s):		Tricoire-Leignel H; Thany SH; Gadenne C; Anton S;
Address:		"Laboratoire Recepteurs et Canaux Ioniques Membranaires, UPRES-EA 2647 USC INRA 1330, Faculte des Sciences, Universite d'Angers Angers, France"
Journal Title:		Front Physiol
Year:		2012
Volume:		20120319
Issue:
Page Number:		58 -
DOI:		10.3389/fphys.2012.00058
ISSN/ISBN:		1664-042X (Electronic) 1664-042X (Linking)
Abstract:		"Most animals, including pest insects, live in an 'odor world' and depend strongly on chemical stimuli to get information on their biotic and abiotic environment. Although integrated pest management strategies including the use of insect growth regulators (IGRs) are increasingly developed, most insect pest treatments rely on neurotoxic chemicals. These molecules are known to disrupt synaptic transmission, affecting therefore sensory systems. The wide-spread use of neurotoxic insecticides and the growing use of IGRs result in residual accumulation of low concentrations in the environment. These insecticide residues could act as an 'info-disruptor' by modifying the chemical communication system, and therefore decrease chances of reproduction in target insects. However, residues can also induce a non-expected hormesis effect by enhancing reproduction abilities. Low insecticide doses might thus induce adaptive processes in the olfactory pathway of target insects, favoring the development of resistance. The effect of sublethal doses of insecticides has mainly been studied in beneficial insects such as honeybees. We review here what is known on the effects of sublethal doses of insecticides on the olfactory system of insect pests"
Keywords:		insecticides olfaction pest management plasticity sex pheromone;
Notes:		"PubMed-not-MEDLINETricoire-Leignel, Helene Thany, Steeve Herve Gadenne, Christophe Anton, Sylvia eng Switzerland 2012/03/30 Front Physiol. 2012 Mar 19; 3:58. doi: 10.3389/fphys.2012.00058. eCollection 2012"