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East meets west: adaptive evolution of an insect introduced for biological control.
1. A possible explanation for low success rates when introducing natural enemies to new regions for biological control of insect pests is that they fail to adapt to their new conditions. Therefore itExpand
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Clover root weevil in the South Island: detection, response and current distribution
Sitona lepidus had spread throughout the North Island of New Zealand by 2005, and was first detected in the South Island in January 2006 when one individual was found at Harewood, Christchurch.Expand
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A Case of Reversal: The Evolution and Maintenance of Sexuals from Parthenogenetic Clones in Hieracium pilosella
We provide evidence for the origin of sexual individuals from parthenogenetic progenitors in natural populations. We demonstrate that this reversal has occurred independently in three geographicallyExpand
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Methods to distinguish between the Microctonus aethiopoides strains that parasitise Sitona lepidus and Sitona discoideus
Two strains of Microctonus aethiopoides with differing host preferences have been released in New Zealand. The first was released in 1982 to suppress Sitona discoideus, a pest of lucerne, and theExpand
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ALLOZYME VARIATION BETWEEN EUROPEAN AND NEW ZEALAND POPULATIONS OF MICROCTONUS AETHIOPOIDES
The parasitoid Microctonus aethiopoides Loan (Hymenoptera: Braconidae) was introduced to New Zealand in 1982 for control of Sitona weevil, Sitona discoideus Gyllenhal (Coleoptera: Circulionidae), aExpand
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Allozyme markers to help define the South American origins of Microctonus hyperodae (Hymenoptera: Braconidae) established in New Zealand for biological control of Argentine stem weevil
Abstract The thelytokous parasitoid, Microctonus hyperodae Loan, was collected from eight South American locations and introduced to New Zealand in 1991 for biological control of Argentine stemExpand
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Development and Validation of a Quick Easily used Biochemical Assay for Evaluating the Viability of Small Immobile Arthropods
ABSTRACT Quickly, accurately, and easily assessing the efficacy of treatments to control sessile arthropods (e.g., scale insects) and stationary immature life stages (e.g., eggs and pupae) isExpand
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A modified enzymatic method for measuring insect sugars and the effect of storing samples in ethanol on subsequent trehalose measurements
Abstract A modified method for enzymatically measuring concentrations of glucose, fructose and trehalose in parasitoid wasps is described and evaluated. The method has high specificity, gives resultsExpand
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Potential to exploit postmortem enzyme degradation for evaluating arthropod viability
Inspecting for live organisms is the main method used to verify efficacy of phytosanitary treatments. Evaluating whether small, immobile organisms such as eggs, pupae and scale insects are alive orExpand
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Proof of concept for a biochemical test that differentiates between heat-treated and non-heat- treated food products
Quarantine authorities often deal with imported food products containing ingredients of animal origin that can carry biosecurity hazards such as animal diseases. The New Zealand Ministry for PrimaryExpand
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