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  • Ecological role of Digitalis purpurea in the natural limitation of populations of the striped potato aphid Aulacorthum solani by Aphidius urticae in western France.

    Foreign Title : Role ecologique de Digitalis purpurea dans la limitation naturelle des populations du puceron strie de la pomme de terre Aulacorthum solani par Aphidius urticae dans l'ouest de la France.

    Author(s) : Robert, Y.Rabasse, J. M.

    Author Affiliation : INRA Laboratoire de Recherches de la Chaire de Zoologie, ENSA, 65, Rue de St-Brieuc, 35042, Rennes Cedex, France.

    Journal article : Entomophaga 1977 Vol.22 No.4 pp.373-382 ref.27

    Abstract : In western FrancefranceSubject Category: Geographic Entities
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    , potato crops are regularly invaded by Aulacorthum solaniaulacorthum solaniSubject Category: Organism Names
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    (Kalt.), Myzus persicaemyzus persicaeSubject Category: Organism Names
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    (Sulz.) and Macrosiphum euphorbiaemacrosiphum euphorbiaeSubject Category: Organism Names
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    (Thos.). Whenever the primary infestation by alates is at a low level the dispersal flight is relatively sizeable, and vice versa. This is because aphidiid parasitesparasitesSubject Category: Organism Groups
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    are capable of exerting good control as soon as aphid populations are building up. The parasites may be carried as eggs or young nymphs in alates of A. solani, and as foxglove (Digitalis purpureadigitalis purpureaSubject Category: Organism Names
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    ) is one of its main winter food-plantsplantsSubject Category: Organism Names
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    (A. solani is anholocyclic), the importance of this plant was investigated in relation to aphid, parasite and hyperparasite development. Aphidius urticaeaphidius urticaeSubject Category: Organism Names
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    Hal. was the only parasite of Aulacorthum solani on D. purpurea, and was itself attacked by 5 species of hyperparasiteshyperparasitesSubject Category: Organism Groups
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    . On potato also, Aphidius urticae parasitised only Aulacorthum solani; the aphid was also parasitised on potato by Aphidius picipes (Nees) and A. ervi Hal. Variations in the rate of parasitism of the aphid by A. urticae in different biotopes at a given time are shown in tables, and attention is drawn to the different levels of parasitism observed in apterous and alate individuals. This is discussed in relation to the numbers of alate migrants that may be produced on foxglove at the time the potato plants are sprouting. Temperature appears to exert an important influence in this respect.

    ISSN : 0013-8959

    DOI : 10.1007/BF02373262

    Record Number : 19780551880

    Language of text : French

    Language of summary : English

    Indexing terms for this abstract:

    Organism descriptor(s) : AphidiusaphidiusSubject Category: Organism Names
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    , Aphidius avenaeaphidius avenaeSubject Category: Organism Names
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    , Aphidius erviaphidius erviSubject Category: Organism Names
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    , Aphidius urticaeaphidius urticaeSubject Category: Organism Names
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    , arthropodsarthropodsSubject Category: Organism Names
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    , Aulacorthum solaniaulacorthum solaniSubject Category: Organism Names
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    , Digitalis purpureadigitalis purpureaSubject Category: Organism Names
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    , Macrosiphum euphorbiaemacrosiphum euphorbiaeSubject Category: Organism Names
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    , Myzus persicaemyzus persicaeSubject Category: Organism Names
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    , Solanum tuberosumsolanum tuberosumSubject Category: Organism Names
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    Descriptor(s) : agricultural entomologyagricultural entomologySubject Category: Disciplines, Occupations and Industries
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    , cropscropsSubject Category: Commodities and Products
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    , hostshostsSubject Category: Organism Groups
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    , hyperparasiteshyperparasitesSubject Category: Organism Groups
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    , natural enemiesnatural enemiesSubject Category: Organism Groups
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    , parasitesparasitesSubject Category: Organism Groups
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    , potatoespotatoesSubject Category: Commodities and Products
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    , root cropsroot cropsSubject Category: Commodities and Products
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    , vegetablesvegetablesSubject Category: Commodities and Products
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    Identifier(s) : Aphidius picipes, green peach aphid, peach-potato aphid, secondary parasites, vegetable crops

    Geographical Location(s) : FrancefranceSubject Category: Geographic Entities
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    Broader term(s) : BraconidaebraconidaeSubject Category: Organism Names
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    , HymenopterahymenopteraSubject Category: Organism Names
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    , insectsinsectsSubject Category: Organism Names
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    , HexapodahexapodaSubject Category: Organism Names
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    , arthropodsarthropodsSubject Category: Organism Names
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    , invertebratesinvertebratesSubject Category: Organism Names
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    , animalsanimalsSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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    , AphidiusaphidiusSubject Category: Organism Names
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    , AulacorthumaulacorthumSubject Category: Organism Names
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    , AphididaeaphididaeSubject Category: Organism Names
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    , AphidoideaaphidoideaSubject Category: Organism Names
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    , SternorrhynchasternorrhynchaSubject Category: Organism Names
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    , HemipterahemipteraSubject Category: Organism Names
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    , DigitalisdigitalisSubject Category: Organism Names
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    , ScrophulariaceaescrophulariaceaeSubject Category: Organism Names
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    , LamialeslamialesSubject Category: Organism Names
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    , eudicotseudicotsSubject Category: Organism Names
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    , angiospermsangiospermsSubject Category: Organism Names
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    , SpermatophytaspermatophytaSubject Category: Organism Names
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    , plantsplantsSubject Category: Organism Names
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    , MacrosiphummacrosiphumSubject Category: Organism Names
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    , MyzusmyzusSubject Category: Organism Names
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    , SolanumsolanumSubject Category: Organism Names
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    , SolanaceaesolanaceaeSubject Category: Organism Names
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    , SolanalessolanalesSubject Category: Organism Names
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    , Developed Countriesdeveloped countriesSubject Category: Miscellaneous
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    , European Union Countrieseuropean union countriesSubject Category: Institutions and Organisations
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    , Mediterranean Regionmediterranean regionSubject Category: Biogeographic Regions
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    , OECD Countriesoecd countriesSubject Category: Institutions and Organisations
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    , Western Europewestern europeSubject Category: Geographic Entities
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    , EuropeeuropeSubject Category: Geographic Entities
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