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Rearing of two predators, Onus albidepennis (Reut.) and Onus laevigatus (Fieber) (Hem., Anthocaridae) on some insect larvae

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AbstractLarvae of Phthorimaea operculella Zell., Anagasta kuehniella Zell. and Tribolium confusum Duv. were used successfully after paralizing them for rearing the two anthocorid predators Orius albidepennis and O. laevigatus. The three hosts were found sufficient for normal development of the predators and for excess of egg production. The deposition of eggs was clearly raised and the mortality appeared during the nymphal stages of the predators because of the strong twisting and resistance in case of the living host larvae was nearly avoided. The obtained numbers of adult predators were markedly increased by using this method of paralizing host larvae.ZusammenfassungZur Zucht der räuberischen Anthocariden Orius albidepennis (Rent.) und Orius laevigatus (Fieber) (Hem., Anthocaridae) mit verschiedenen InsektenlarvenMit warmem Wasser paralysierte Larven von Phthorimaea operculella Zell., Anagasta kuehniella Zell. und Tribolium confusum Duv. konnten erfolgreich für die Aufzucht von Orius albidepennis und O. laevigatus verwendet werden. Diese drei Beutetiere eigneten sich für die normale Entwicklung und Eiproduktion der beiden Orius‐Arten. Die Eiablagen konnten deutlich gesteigert werden, und die Mortalität der Orius‐Arten während des Nymphenstadiums, die aufgrund der Wehrhaftigkeit lebender Beutetiere eintritt, konnte nahezu verhindert werden. Die Anzahl adulter Orius spp. konnte durch Zucht mit paralysierten Larven deutlich gesteigert werden.
Title: Rearing of two predators, Onus albidepennis (Reut.) and Onus laevigatus (Fieber) (Hem., Anthocaridae) on some insect larvae
Description:
AbstractLarvae of Phthorimaea operculella Zell.
, Anagasta kuehniella Zell.
and Tribolium confusum Duv.
were used successfully after paralizing them for rearing the two anthocorid predators Orius albidepennis and O.
laevigatus.
The three hosts were found sufficient for normal development of the predators and for excess of egg production.
The deposition of eggs was clearly raised and the mortality appeared during the nymphal stages of the predators because of the strong twisting and resistance in case of the living host larvae was nearly avoided.
The obtained numbers of adult predators were markedly increased by using this method of paralizing host larvae.
ZusammenfassungZur Zucht der räuberischen Anthocariden Orius albidepennis (Rent.
) und Orius laevigatus (Fieber) (Hem.
, Anthocaridae) mit verschiedenen InsektenlarvenMit warmem Wasser paralysierte Larven von Phthorimaea operculella Zell.
, Anagasta kuehniella Zell.
und Tribolium confusum Duv.
konnten erfolgreich für die Aufzucht von Orius albidepennis und O.
laevigatus verwendet werden.
Diese drei Beutetiere eigneten sich für die normale Entwicklung und Eiproduktion der beiden Orius‐Arten.
Die Eiablagen konnten deutlich gesteigert werden, und die Mortalität der Orius‐Arten während des Nymphenstadiums, die aufgrund der Wehrhaftigkeit lebender Beutetiere eintritt, konnte nahezu verhindert werden.
Die Anzahl adulter Orius spp.
konnte durch Zucht mit paralysierten Larven deutlich gesteigert werden.

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