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Ecological Entomology, 2005 1. The parasitoid Aphidius ervi and the entomopathogenic fungus Pandora neoaphidis both require successful invasion of an aphid host to complete their life cycle. A shorter developmental period allows P. neoaphidis to out-compete A. ervi.
J Baverstock, P G Alderson, J K Pell
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Behavioural differences between Aphidius ervi populations from two tritrophic systems are due to phenotypic plasticity [PDF]
Entomologia Experimentalis Et Applicata, 2002 Fuentes-Contreras, E. and Reyes, M. Departmento de Producción, Agrícola, Facultad de Ciencias Agrarias, Universidad de Talca, Casilla 747, Talca, Chile.The Palaeoarctic parasitoid Aphidius ervi Haliday (Hymenoptera, Aphidiidae) parasitises legume aphids ...
Christian C Figueroa, Hermann M Niemeyer
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Host castration by Aphidius ervi venom proteins
Journal of Insect Physiology, 2000The braconid Aphidius ervi Haliday (Hymenoptera, Braconidae) is an endophagous parasitoid of the pea aphid, Acyrthosiphon pisum (Harris) (Homoptera, Aphididae). Parasitized host aphids show different degrees of castration, a response that is total when parasitoid oviposition takes place in first instar hosts.
, Digilio +3 more
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Effects of honeydew sugar composition on the longevity of Aphidius ervi
Entomologia Experimentalis et Applicata, 2007AbstractFeeding on sugar‐rich foods such as nectar and honeydew is important for survival of many adult parasitoids. Especially in agricultural systems, honeydew is often the most prevalent carbohydrate source. However, relative to plant nectar, honeydew may be relatively unsuitable, as a result of an unfavourable sugar composition or the presence of ...
Hogervorst, Petra A. M. +2 more
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Pea aphid clonal resistance to the endophagous parasitoid Aphidius ervi
Journal of Insect Physiology, 2002The physiological mechanism of resistance to the endophagous braconid Aphidius ervi Haliday (Hymenoptera, Braconidae) by a pink clone (PC) of Acyrthosiphon pisum (Harris) (Homoptera, Aphididae) has been investigated. Comparative data on parasitoid development and associated host biochemical changes in the resistant PC aphids and in a susceptible green ...
LI S. +9 more
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Leucine transport by the larval midgut of the parasitoid Aphidius ervi (Hymenoptera)
Journal of Insect Physiology, 2010The larval midgut of the hymenopteran parasitoid Aphidius ervi accomplishes a large transport of nutrients from the lumen to the haemocoel, providing most of the organic molecules necessary for rapid insect development. l-amino acids in general, and leucine in particular, are efficiently accumulated in the larval body.
L. Fiandra +3 more
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Absorption of sugars and amino acids by the epidermis of Aphidius ervi larvae
Journal of Insect Physiology, 2003Aphidius ervi Haliday (Hymenoptera, Braconidae) is an endophagous parasitoid of several aphid species of economic importance, widely used in biological control. The definition of a suitable artificial diet for in vitro mass production of this parasitoid is still an unresolved issue that, to be properly addressed, requires a deeper understanding both of
GIORDANA B +9 more
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Reproductive strategies of Aphidius ervi Haliday (Hymenoptera: Aphidiidae)
Biological Control, 2008Abstract Hymenopteran parasitoids are usually arrhenotokous parthenogenetic, where females arise from fertilized and males from unfertilized eggs. Therefore, the reproductive fitness of females is a function of egg production and furthermore affected by mating, whereas that of males is mainly determined by the number of daughters they father ...
Xiong Zhao He, Qiao Wang
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Host regulation by the aphid parasitoid Aphidius ervi: the role of teratocytes
Entomologia Experimentalis et Applicata, 2000AbstractThe biochemical profile and metabolism of Acyrthosiphon pisum (Harris) (Homoptera, Aphididae) are markedly altered and redirected in response to parasitization by the endophagous braconid Aphidius ervi Haliday (Hymenoptera, Braconidae). In the present study, the role played in the host regulation process by teratocytes, cells deriving from the ...
P. Falabella +2 more
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Development and nutrition of the braconid wasp, Aphidius ervi in aposymbiotic host aphids
Archives of Insect Biochemistry and Physiology, 1999This study aims at evaluating whether the bacterial endosymbionts of the pea aphid, Acyrthosiphon pisum (Harris), may be of any nutritional importance to the endophagous braconid parasitoid Aphidius ervi Haliday. Aposymbiotic aphids, obtained by rifampicin treatment on artificial diet, were parasitized, and both parasitoid development and major changes
PENNACCHIO, FRANCESCO +5 more
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