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  • Natural enemies of aphids (Homoptera, Aphididae) on barley (Hordeum sp.) in Paraná.

    Foreign Title : Inimigos naturais dos afídeos (Homoptera, Aphididae) da cevada (Hordeum sp.) no Paraná.

    Author(s) : Lázzari, S. N.

    Author Affiliation : Departamento de Zoologia, UFPR, Caixa Postal 3034, 80.000 Curitiba, Paraná, Brazil.

    Journal article : Anais da Sociedade Entomológica do Brasil 1985 Vol.14 No.1 pp.5-15 ref.10

    Abstract : A field study was carried out in Lapa, Paraná, BrazilbrazilSubject Category: Geographic Entities
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    , from June to October 1977 to investigate the occurrence of natural enemiesnatural enemiesSubject Category: Organism Groups
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    of aphids on barleybarleySubject Category: Commodities and Products
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    crops. EntomophthoraentomophthoraSubject Category: Organism Names
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    spp. killed 21.2% of Metopolophium dirhodummetopolophium dirhodumSubject Category: Organism Names
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    and 18.5% of Sitobion avenaesitobion avenaeSubject Category: Organism Names
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    (the main aphids on the crop), the highest rates of infection occurring after the peak of aphid populations. The only parasite found was the braconid Aphidius colemaniaphidius colemaniSubject Category: Organism Names
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    ,
    which was reared from several species, especially Schizaphis graminumschizaphis graminumSubject Category: Organism Names
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    , Rhopalosiphum maidisrhopalosiphum maidisSubject Category: Organism Names
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    and R. padi. The only hyperparasite was the charipid Alloxysta brassicae. The most abundant predatorspredatorsSubject Category: Organism Groups
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    were the syrphid Allograpta exotica (some pupae of which were parasitized by the ichneumonid Ethelurgus rufipes and the pteromalid Pachyneuron albutiuspachyneuron albutiusSubject Category: Organism Names
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    ) and the coccinellid Eriopis connexaeriopis connexaSubject Category: Organism Names
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    .
    Although individually none of the natural enemies exercised a large measure of control, collectively their effect increased as aphid populations increased and resulted in an abrupt reduction in aphid numbers.

    ISSN : 0301-8059

    Record Number : 19860532142

    Language of text : Portuguese

    Language of summary : English

    Indexing terms for this abstract:

    Organism descriptor(s) : Alloxysta fuscicornisalloxysta fuscicornisSubject Category: Organism Names
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    , ALLOXYSTA VICTRIXalloxysta victrixSubject Category: Organism Names
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    , AphididaeaphididaeSubject Category: Organism Names
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    , arthropodsarthropodsSubject Category: Organism Names
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    , ColeopteracoleopteraSubject Category: Organism Names
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    , DipteradipteraSubject Category: Organism Names
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    , EntomophthoraentomophthoraSubject Category: Organism Names
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    , EntomophthoraceaeentomophthoraceaeSubject Category: Organism Names
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    , Eriopis connexaeriopis connexaSubject Category: Organism Names
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    , Glyptapanteles colemani, HemipterahemipteraSubject Category: Organism Names
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    , HordeumhordeumSubject Category: Organism Names
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    , Hordeum vulgarehordeum vulgareSubject Category: Organism Names
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    , HymenopterahymenopteraSubject Category: Organism Names
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    , Metopolophium dirhodummetopolophium dirhodumSubject Category: Organism Names
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    , Pachyneuron albutiuspachyneuron albutiusSubject Category: Organism Names
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    , Rhopalosiphum maidisrhopalosiphum maidisSubject Category: Organism Names
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    , Rhopalosiphum padirhopalosiphum padiSubject Category: Organism Names
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    , Schizaphis graminumschizaphis graminumSubject Category: Organism Names
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    , Sitobion avenaesitobion avenaeSubject Category: Organism Names
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    Descriptor(s) : agricultural entomologyagricultural entomologySubject Category: Disciplines, Occupations and Industries
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    , barleybarleySubject Category: Commodities and Products
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    , cerealscerealsSubject Category: Commodities and Products
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    , hostshostsSubject 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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    , pathogenspathogensSubject Category: Organism Groups
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    , predatorspredatorsSubject Category: Organism Groups
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    , preypreySubject Category: Organism Groups
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    Identifier(s) : Allograpta exotica, Alloxysta brassicae, Aphidius colemaniaphidius colemaniSubject Category: Organism Names
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    , Ethelurgus, Ethelurgus rufipes, fungus

    Geographical Location(s) : BrazilbrazilSubject Category: Geographic Entities
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    , South Americasouth americaSubject Category: Geographic Entities
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    Broader term(s) : AlloxystaalloxystaSubject Category: Organism Names
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    , FigitidaefigitidaeSubject 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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    , AphidoideaaphidoideaSubject Category: Organism Names
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    , SternorrhynchasternorrhynchaSubject Category: Organism Names
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    , HemipterahemipteraSubject Category: Organism Names
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    , EntomophthoraceaeentomophthoraceaeSubject Category: Organism Names
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    , EntomophthoralesentomophthoralesSubject Category: Organism Names
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    , EntomophthoromycotinaentomophthoromycotinaSubject Category: Organism Names
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    , ZygomycotazygomycotaSubject Category: Organism Names
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    , fungifungiSubject Category: Organism Names
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    , EriopiseriopisSubject Category: Organism Names
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    , CoccinellidaecoccinellidaeSubject Category: Organism Names
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    , ColeopteracoleopteraSubject Category: Organism Names
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    , PoaceaepoaceaeSubject Category: Organism Names
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    , PoalespoalesSubject Category: Organism Names
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    , commelinidscommelinidsSubject Category: Organism Names
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    , monocotyledonsmonocotyledonsSubject 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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    , HordeumhordeumSubject Category: Organism Names
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    , MetopolophiummetopolophiumSubject Category: Organism Names
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    , AphididaeaphididaeSubject Category: Organism Names
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    , PachyneuronpachyneuronSubject Category: Organism Names
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    , PteromalidaepteromalidaeSubject Category: Organism Names
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    , RhopalosiphumrhopalosiphumSubject Category: Organism Names
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    , SchizaphisschizaphisSubject Category: Organism Names
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    , SitobionsitobionSubject Category: Organism Names
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    , Community of Portuguese Language Countriescommunity of portuguese language countriesSubject Category: Institutions and Organisations
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    , Developing Countriesdeveloping countriesSubject Category: Miscellaneous
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    , Latin Americalatin americaSubject Category: Geographic Entities
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    , AmericaamericaSubject Category: Geographic Entities
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    , South Americasouth americaSubject Category: Geographic Entities
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    , Threshold Countriesthreshold countriesSubject Category: Miscellaneous
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    , GlyptapantelesglyptapantelesSubject Category: Organism Names
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    , BraconidaebraconidaeSubject Category: Organism Names
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