The chemical ecology of <Emphasis Type="Italic">Harmonia axyridis</Emphasis> |
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Authors: | John J Sloggett Alexandra Magro François J Verheggen Jean-Louis Hemptinne William D Hutchison Eric W Riddick |
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Institution: | 1.Breda,The Netherlands;2.Université de Toulouse, ENFA, EDB (Laboratoire Evolution et Diversité Biologique),Castanet Tolosan,France;3.CNRS, EDB (Laboratoire Evolution et Diversité Biologique),Toulouse,France;4.Gembloux Agro-Bio Tech, Liege University,Gembloux,Belgium;5.Department of Entomology,University of Minnesota,St. Paul,USA;6.National Biological Control Laboratory,USDA-Agricultural Research Service,Stoneville,USA |
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Abstract: | We review the chemical ecology of the ladybird beetle Harmonia axyridis from the perspective of its invasiveness and the deleterious effects it exerts in the regions it has colonised. We outline
the nature and quantification of its chemical defence, and discuss the protection this provides against natural enemies, particularly
intraguild predators. We consider the role of infochemicals in location of prey, intraspecific communication and intraguild
interactions. We also discuss the role of prey allelochemicals in relation to H. axyridis extreme dietary generalism. Harmonia axyridis poses a number of practical problems for human health and well-being, including “ladybug taint” wine contamination and problems
resulting from large aggregations overwintering in buildings. We consider chemical insights into these issues and, in particular,
how attractants and repellents might help manage H. axyridis populations through a push–pull strategy. We conclude by discussing future perspectives for research. |
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