Résultat de la recherche
32 recherche sur le mot-clé
'Aphidius ervi' 
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R. Glinwood ; Y. Du ; W. Powell | 1999Aphidius ervi and Aphidius eadyi, two parasitoids of the pea aphid Acyrthosiphon pisum, were attracted to components of the aphid sex pheromone in laboratory bioassays. Pre-test experience with host aphids in the presence of aphid sex pheromone [...]
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D. Battaglia ; F. Pennacchio ; A. Romano ; A. Transfaglia | 1994
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R. Sequeira ; M. Mackauer | 1994We determined the age-specific fecundity and survival of the solitary parasitoid wasp, Aphidius ervi Haliday (Hymenoptera: Aphidiidae), under constant laboratory conditions. Wasps were reared in each of the four nymphal instars of apterous pea a[...]
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D. Battaglia ; F. Pennacchio ; G. Marincola ; A. Tranfaglia | 1993Females of the endophagous parasitoid Aphidius ervi Haliday (Hymenoptera: Braconidae) respond positively to the cornicle secretion of the pea aphid, Acyrthosiphon pisum (Harris) (Homoptera: Aphididae). The parasitoid response has been assessed [...]
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Stary P. | 1969
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E. Guerrieri ; F. Pennacchio ; E. Tremblay | 1997The effect of adult experience on in-flight orientation to plant-host complex volatiles by Aphidius ervi Haliday was studied in a wind tunnel bioassay, using Acyrthosiphon pisum (Harris), maintained on broad bean plants (Vicia faba) as host. A s[...]
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E. Guerrieri ; F. Pennacchio ; E. Tremblay | 1993The flight behaviour of the aphid parasitoid Aphidius ervi Haliday (Hymenoptera: Braconidae) has been studied in a wind tunnel, in response to the following natural odour sources: broad bean plants infested with Acyrthosiphon pisum (Harris) (Hom[...]
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F. Pennacchio ; M. Digilio ; E. Tremblay ; A. Tranfaglia | 1994The host preference and acceptance behaviour of populations of Aphidius ervi Haliday and A. microlophii Pennacchio & Tremblay from southern Italy was investigated. In no host-choice conditions, A. ervi females showed significantly higher attack [...]
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R. Hufbauer ; S. Bogdanowicz ; L. Perez ; R. Harrison | 2001
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The responses of female Aphidius ervi to odors from a host food plant (Vicia faba), host aphids (Acyrthosiphon pisum), nonhost aphids (Aphis fabae), and aphid-plant complexes were investigated in a specially designed wind tunnel and a Y-tube olf[...]
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J. Kralovic ; V. Vallo | 1969
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We investigated the role of the foraging behavior of the parasitoid wasp Aphidius ervi in producing nonrandom spatial patterns of parasitism among pea aphids, Aeyrthosiphon pisum. We measured spatial variability in percent parasitism by determin[...]
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D. Battaglia ; F. Pennacchio ; A. Romano ; A. Tranfaglia | 1994
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P. Atanassova ; C. Brookes ; H. Loxdale ; W. Powell | 1998Four polymorphic enzymes (PEP, PGI, PGM and IDH) were separated from adult individuals of five aphid parasitoid species of the genus Aphidius Nees (A. ervi Haliday, A. microlophii Pennacchio & Tremblay, A. eadyi Stary, Gonzalez & Hall, A. picipe[...]
