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See detailTournières, jachères et insectes auxiliaires
Colignon, Pierre; Haubruge, Eric ULiege; Gaspar, Charles et al

Article for general public (2003)

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See detailEvaluation de la présence des Syrphidae en cultures maraîchères et relation avec les populations aphidiennes.
Francis, Frédéric ULiege; Colignon, Pierre; Gaspar, Charles et al

in Abstract book (2003)

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See detailEffets de l’environnement proche sur la biodiversité entomologique en carottes de plein champ
Colignon, Pierre; Hastir, Pierre; Gaspar, Charles et al

in Annales de la 2ème Conférence Internationale sur les moyens alternatifs de lutte contre les organismes nuisibles aux végétaux (2002)

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See detailEntomological diversity in agro-ecosystems : not necessarily an ecological desert
Francis, Frédéric ULiege; Haubruge, Eric ULiege; colignon, Pierre et al

in Bulletin de l’Institut Royal des Sciences naturelles de Belgique, Biologie, 72 : 153-154. (2002)

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See detailMesures agri-environnementales et biodiversité : effet des tournières enherbées sur les populations de syrphes en grandes cultures
Francis, Frédéric ULiege; Devallée, Gilles; Terwagne, Sébastien et al

in 1. Annales de la 2ème Conférence Internationale sur les moyens alternatifs de lutte contre les organismes nuisibles aux végétaux (2002)

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See detailImpact of closed habitat on the entomological diversity and abundance in carrot open fields
Colignon, Pierre; Gaspar, Charles; Haubruge, Eric ULiege et al

in Med. Fac. Landbouw. Univ. Gent (2002), 67(3), 481-486

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See detailEffect of some insecticides on acetylcholinesterase from beneficial insects: Coccinella septempunctata, Chrysoperla carnea and Forficula auricularia
Boszic, Andras; Francis, Frédéric ULiege; Gaspar, Charles et al

in Med. Fac. Landbouw. Univ. Gent (2002), 67(3), 671-677

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See detailResponses and adaptations of Episyrphus balteatus and Adalia bipunctata to allelochemicals from Brassicaceae plant through their preys
Vanhaelen, Nicolas; Haubruge, Eric ULiege; Gaspar, Charles et al

in International Symposium on Ecology of Aphidophaga (2002)

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See detailIs dimethyldecanal a common aggregation pheromone of Tribolium flour beetles?
Arnaud, Ludovic; Lognay, Georges; Verscheure, Marjolaine et al

in Journal of Chemical Ecology (2002), 28(3), 523-532

Flour beetles are cosmopolitan and common pestsingrain stores and flour mills. Their ability to exploit a wide variety of stored products has contributed to their status as major pests of stored food ... [more ▼]

Flour beetles are cosmopolitan and common pestsingrain stores and flour mills. Their ability to exploit a wide variety of stored products has contributed to their status as major pests of stored food. Although it was previously reported that the same aggregation pheromone, 4,8-dimethyldecanal (DMD), is shared by three flour beetles species (Tribolium castaneum, T. confusum, and T. freemani), the volatiles released by the other Tribolium species associated with stored products have not yet been examined. In the present study, the volatiles produced by males and females of eight Tribolium species were examined by solid phase microextraction (SPME). SPME samples were analyzed by gas chromatography coupled to mass spectrometry (GC-MS). Experiments were conducted to identify volatiles emitted by the adults of different Tribolium species and to determine whether DMD is a common aggregation pheromone. We observed that DMD is not a common pheromone of the eight species tested, but is common to T. castaneum, T. confusum, T. freemani, and T. madens. Two other volatiles were detected, 1-pentadecene, which is shown here to be a common semiochemical of flour beetles, and 1,6-pentadecadiene, which was detected in five species (T. audax, T. brevicornis, T. destructor, T. freemani, and T. madens). [less ▲]

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See detailEcosystem disturbances: an opportunity for biodiversity persistence
Patiny, Sébastien; Francis, Frédéric ULiege; Haubruge, Eric ULiege et al

in Abstract book (2001)

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See detailEvaluation of aphidophagous ladybird populations in a vegetable crop and implications as biological agents
Francis, Frédéric ULiege; Colignon, Pierre; Haubruge, Eric ULiege et al

in Med. Fac. Landbouw. Univ. Gent (2001), 66(2a), 333-340

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See detailResponses and adaptations of Episyrphus balteatus to allelochemicals from plant through their preys
Francis, Frédéric ULiege; Vanhaelen, Nicolas; Haubruge, Eric ULiege et al

in Abstract book (2001)

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See detailEffect of aphid host plant on development and reproduction of the third trophic level, the predator Adalia bipunctata (Coleoptera: Coccinellidae)
Francis, Frédéric; Haubruge, Eric ULiege; Hastir, P. et al

in Environmental Entomology (2001), 30(5), 947-952

Secondary plant substances, also called allelochemicals, play a major role in pest infestations. Glucosinolates (GLS) and their degradation products are powerful phagostimulants for herbivores feeding on ... [more ▼]

Secondary plant substances, also called allelochemicals, play a major role in pest infestations. Glucosinolates (GLS) and their degradation products are powerful phagostimulants for herbivores feeding on Brassicaceae and deter the noncrucifer feeders but are tolerated by some generalist phytophagous insects such as the peach-potato aphid, Myzυs persicas Sultzer. Do the allelochemical substances only effect the herbivores or do they also influence the predators of the pest? Broad bean, Viciafaba L (GLS free), oilseed rape, Brassica tiapus L (low GLS level), and white mustard, Sinajris alba L. (high GLS level), were used in this work as host plant for the prey. Although the two latter Brassicaceae species had positive effects on aphid reproductive rates, host plants displayed mixed influences on the performance of the predaceous twospotted lady beetle, Adalia bipunctata L. Both rape and mustard shortened development duration and increased adult weight of the twospotted lady beetle. No significant difference of lady beetle mortality was observed, depending on the prey host plant. Whereas, rape-fed M. persicae enhanced larger egg production and larvae emergence, mustard-fed M.. persicae induced lower fecundity and egg viability of the beetles. Fitness of M. persicae on high GLS plant-fed A. bipunctata was lower than the other plants. Biological parameters of aphid predators are closely linked to chemical composition of Brassicaceae species. This work on allelochemical impact gave opportunities to better understand interactions of the plant-aphid-lady beetle tritrophic model and demonstrated that successful biological control of pests must integrate the environmental aspects of each trophic level. [less ▲]

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See detailEnvironmentally based maternal effect on reproduction of Adalia bipunctata : impact of aphid prey species.
Francis, Frédéric ULiege; Defrance, Thibault; Haubruge, Eric ULiege et al

in Mededelingen van de Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Rijksuniversiteit te Gent) (2000), 65(2), 303-310

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See detailSelection of grain-hosts by Prostephanus truncatus Horn (Coleoptera: Bostrychidae) and oviposition preferences of Sitophilus zeamais Motsch. (Col.: Curculionidae) in insect-infested maize
Danho, M.; Haubruge, Eric ULiege; Arnaud, Louis ULiege et al

in Proceeding of 17th annual meeting of the international society of chemical ecology (2000)

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See detailAphid host plant and food suitability for aphidophagous larvae: impact on ladybird reproductive performance.
Francis, Frédéric ULiege; Haubruge, Eric ULiege; Gaspar, Charles ULiege

in The BCPC Conference: Pests and diseases, Volume 3. Proceedings of aninternational conference held at the Brighton Hilton Metropole Hotel,Brighton, UK, 13-16 November 2000 (2000)

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See detailMise en evidence de la tolerance de Tribolium castaneum a l'egard d'une formulation a base de terre de diatomees.
Haubruge, Eric ULiege; Rigaux, M.; Arnaud, L. et al

in Bulletin OILB/SROP = IOBC/WPRS Bulletin (2000), 23(10),

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See detailLa maladie de Kashin-Beck et le milieu rural au Tibet: un problème agri-environnemental
Haubruge, Eric ULiege; Chasseur, Camille; Mathieu, Françoise et al

in Cahiers Agricultures (2000), 9

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