Journal Title
Title of Journal: BioControl
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Publisher
Springer Netherlands
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Authors: John G Charles Shaun A Forgie Asha Chhagan Robert D Edwards
Publish Date: 2014/09/13
Volume: 60, Issue: 1, Pages: 13-25
Abstract
Laboratorybased physiological hostrange tests of classical biocontrol agents may be complemented by examining the ecological realised hostrange of similar previously established species Sentinel longtailed mealybugs Pseudococcus longispinus TargioniTozzetti on potted citrus plants and two species of native mealybugs on potted native trees were placed in pairs in an orchard and a native forest block 500 m away Sentinel P longispinus on citrus plants were also placed along transects anchored in each habitat and extending towards the other by 100–150 m Parasitoids were reared from the retrieved mealybugs P longispinus in the orchard was regularly parasitized by four species of exotic Encyrtidae but was never parasitized by them in the native forest even though the parasitoids were present in the surrounding environment Sentinel native mealybugs were not parasitized by any species in either habitat although native parasitoids especially Errolium sp Hym Platygastridae and unidentified Hym Aphelinidae were collected from native mealybugs within the native forestWe thank the late Rosa Henderson Landcare Research Auckland for confirming the identity of native mealybugs found in this study and Tony Corbett Plant and Food Research Hawke’s Bay for preparing Fig 1 This paper was funded in part by New Zealand’s ‘Science Solutions for Better Border Biosecurity B3’ http//wwwb3nzorg
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