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Parasitierungsbiologie der Schlupfwespe Baryscapus tineivorus (Hymenoptera: Eulophidae) an Larven der Kleidermotte Tineola bisselliella und Pelzmotte Tinea pellionella (Lepidoptera: Tineidae)

Observations on the biology of the wasp Baryscapus tineivorus (Hymenoptera: Eulophidae), a parasitoid of tineid moths.

  • Observations on the biology of the wasp Baryscapus tineivorus (Hymenoptera: Eulophidae), a parasitoid of tineid moths. Laboratory studies were undertaken to determine the effectiveness of Baryscapus tineivorus, a gregarious parasitoid wasp with high potential to biologically control Tineola bisselliella, the webbing clothes moth and general pest on textiles. It was found that the sex ratio of B. tineivorus is often heavily female-biased (~6 females to one male). Parthenogenetic reproduction occurrs when males develop from unfertilized eggs. Baryscapus tineivorus is oligophagous, parasitising at least another tineid moth, the casemaking clothes moth Tinea pellionella. I investigated how B. tineivorous finds and selects hosts of various larval ages for egg deposition using two different approaches: (1) an acceptance test, for which only one defined larval stage of T. bisselliella or T. pellionella was offered for egg laying; and (2) a choice test, for which different larval stages orObservations on the biology of the wasp Baryscapus tineivorus (Hymenoptera: Eulophidae), a parasitoid of tineid moths. Laboratory studies were undertaken to determine the effectiveness of Baryscapus tineivorus, a gregarious parasitoid wasp with high potential to biologically control Tineola bisselliella, the webbing clothes moth and general pest on textiles. It was found that the sex ratio of B. tineivorus is often heavily female-biased (~6 females to one male). Parthenogenetic reproduction occurrs when males develop from unfertilized eggs. Baryscapus tineivorus is oligophagous, parasitising at least another tineid moth, the casemaking clothes moth Tinea pellionella. I investigated how B. tineivorous finds and selects hosts of various larval ages for egg deposition using two different approaches: (1) an acceptance test, for which only one defined larval stage of T. bisselliella or T. pellionella was offered for egg laying; and (2) a choice test, for which different larval stages or different species were offered. In the acceptance tests, B. tineivorus offspring developed within four to seven weeks old webbing clothes moths larvae and within six to seven weeks old casemaking clothes moth larvae. Dual-choice experiments with both tineid host species revealed that B. tineivorus is more attracted to T. bisselliella than to T. pellionella. Because B. tineivorus was reared on T. bisselliella, parasitoid conditioning (learning) could explain the host preference.zeige mehrzeige weniger

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Metadaten
Autor*innen:Martina Matzke
Persönliche Herausgeber*innen:Walter Sudhaus
Dokumenttyp:Zeitschriftenartikel
Veröffentlichungsform:Verlagsliteratur
Sprache:Deutsch
Titel des übergeordneten Werkes (Deutsch):Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin
Jahr der Erstveröffentlichung:2016
Jahrgang/Band:52
Erste Seite:105
Letzte Seite:116
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften
Freie Schlagwörter:Biologische Bekämpfung; Materialschutz; Schlupfwespen; Textilmotten
ISSN:0037-5942
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:09.02.2017
Referierte Publikation:Nein
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