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Effect of physiological and behavioural characteristics of parasitoids on host specificity testing outcomes and the biological control of Paropsis charybdis
(Lincoln University, 2010)
An established host-parasitoid-hyperparasitoid system was used to investigate how the physiological and behavioural characteristics of parasitoids influence the outcomes of laboratory-based host specificity tests. The ...
The role of floral resource subsidies in structuring a four tropic-level parasitoid/host system
(Lincoln University, 2007)
In this study, conservation biological control principles were explored to determine whether the efficacy of Aphidius ervi Haliday (Hymenoptera: Braconidae), a parasitoid of the pea aphid Acyrthosiphon pisum Harris (Homoptera: ...
The role of resource subsidies in enhancing biological control of aphids by hoverflies (Diptera: Syrphidae)
(Lincoln University, 2007)
In this thesis, experiments were conducted in the laboratory and the field to determine
whether the provision of floral resources to hoverflies could enhance the biological
control of aphids. The overall aim was to clarify ...
Biological control of Sclerotina diseases of vegetables
(Lincoln University, 2000)
Sixty three fungal isolates, obtained from the local region (Canterbury, New Zealand), were tested for their ability to inhibit mycelial growth and sclerotial production of Sclerotinia sclerotiorum using a cabbage petiole ...
Biological control of onion white rot using Trichoderma harzianum
(Lincoln University, 2001)
The biological control of Sclerotium cepivorum, the causal agent of onion white rot, by Trichoderma harzianum and T. virens was studied in a glasshouse trial. T. Harzianum (isolates C52 and D73) and T. virens (isolate GV4) ...
Biological control of Aphanomyces euteiches root rot of pea with spore-forming bacteria
(Lincoln University, 2001)
Spore-forming bacteria were investigated as potential biological control agents of the pea root rot fungus, Aphanomyces euteiches (Oomycete). Isolations of the bacteria were made both directly from field soils (558) and ...
The impact of host-plant stress on the performance of two insect biological control agents of Broom (Cytisus scoparius)
(Lincoln University, 2005)
Weeds often grow over a wide range of environments, experiencing a number of environmental stresses with varying intensities. As a consequence these weeds will often exhibit differences in morphology and physiology. It has ...
Floral resources for the enhancement of the efficacy of Diadegma semiclausum (Helen) (Hymenoptera: Ichneumonidae), a parasitoid of Plutella xylostella (L.) (Lepidoptera: Hyponomeutidae) in broccoli (Brassica oleracea L. var. italica)
(Lincoln University, 2004)
In this thesis, conservation biological control experiments have been conducted in the broccoli agro-ecosystem in New Zealand, to target the diamondback moth (Plutella xylostella (L.) (Lepidoptera: Hyponomeutidae)) and its ...
The impact of floral resources and omnivory on a four trophic level food web
(Cambridge University Press, 2008-12-09)
Omnivory is common among arthropods, but little is known about how availability of plant resources and prey affects interactions between species operating at the third and fourth trophic level. We used laboratory and field ...