Article (Scientific journals)
An introduction device for the aphidophagous hoverfly Episyrphus balteatus (De Geer) (Diptera: Syrphidae)
Leroy, Pascal; Verheggen, François; Capella, Quentin et al.
2010In Biological Control, 54 (3), p. 181-188
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Keywords :
Biological control; aphid; oviposition; syrphid; Episyrphus balteatus; honeydew; semiochemicals
Abstract :
[en] Augmentative biocontrol constitutes a safe option to reduce pest populations through the enhancement of natural enemies’ activity. In this context, the aphidophagous syrphid Episyrphus baltetaus (De Geer) (Diptera: Syrphidae) is a promising candidate for aphid biological control: larvae of this syrphid attack and consume a wide range of aphid species and are found on many vegetable crops. Because natural populations of beneficial insects are not always sufficient to regulate the pest infestations, this work has focused on the conception of a biological control device containing syrphid eggs which ones can easily be introduced in fields or greenhouses. Using semiochemicals [E-(β)-farnesene, R-(+)-limonene and (Z)-3-hexenol], honeydews and “artificial honeydews” (10% or 30% aqueous solutions of sucrose, fructose and glucose), the syrphid oviposition was artificially induced on an inert surface. Specifically, E-(β)-farnesene and concentrated mono-sugars (30%) were identified as the most efficient ovipositional stimulants. To test and validate the biological control device described above, laboratory and field experiments were performed: a plastic lamella covered with syrphid eggs was suspended on aphid infested plants in order to measure the efficiency of the device. The results obtained were promising since populations of 500 aphids were eliminated in ten days when 15 syrphid eggs were introduced. The use of such a biological control device could certainly contribute to the biological control to reduce the aphid infestations.
Disciplines :
Entomology & pest control
Author, co-author :
Leroy, Pascal ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Verheggen, François  ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Capella, Quentin;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Francis, Frédéric  ;  Université de Liège - ULiège > Sciences agronomiques > Entomologie fonctionnelle et évolutive
Haubruge, Eric  ;  Université de Liège - ULiège > Services administratifs généraux > Vice-Recteur de Gembloux Agro Bio Tech - Entomologie fonctionnelle et évolutive
Language :
English
Title :
An introduction device for the aphidophagous hoverfly Episyrphus balteatus (De Geer) (Diptera: Syrphidae)
Alternative titles :
[fr] Dispositif d'introduction du syrphe aphidiphage Episyrphus balteatus (De Geer) (Diptera: Syrphidae)
Publication date :
31 May 2010
Journal title :
Biological Control
ISSN :
1049-9644
eISSN :
1090-2112
Publisher :
Academic Press
Volume :
54
Issue :
3
Pages :
181-188
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
Solaphid - Waléo 2
Funders :
Région wallonne [BE]
Available on ORBi :
since 14 August 2010

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