- Insect-Plant Interactions and Control
- Biological Control of Invasive Species
- Forest Insect Ecology and Management
- Insect behavior and control techniques
- Insect Pest Control Strategies
- Entomopathogenic Microorganisms in Pest Control
- Plant and fungal interactions
- Nematode management and characterization studies
- Plant Parasitism and Resistance
- Plant and animal studies
- Hemiptera Insect Studies
- Insect and Arachnid Ecology and Behavior
- Ecology and Vegetation Dynamics Studies
- Insect symbiosis and bacterial influences
- Animal Ecology and Behavior Studies
- Hymenoptera taxonomy and phylogeny
- Insects and Parasite Interactions
- Mollusks and Parasites Studies
- Coleoptera Taxonomy and Distribution
- Agronomic Practices and Intercropping Systems
- Weed Control and Herbicide Applications
- Parasite Biology and Host Interactions
- Mycorrhizal Fungi and Plant Interactions
- Coleoptera: Cerambycidae studies
- Organic Food and Agriculture
AgResearch
2016-2025
Cawthron Institute
2024
Christ University
2024
Lincoln University
2013-2023
University of Auckland
2021
United States Customs and Border Protection
2011
Ministry of Agriculture Livestock and Fisheries
1978-1982
Ministère de l'Agriculture et de la Souveraineté alimentaire
1978-1981
Ministry of Health
1977-1981
Lincoln University College
1978
Significance The need for agricultural production to meet the food demands of a growing human population will require sustainable and acceptable pest management, such as biological control, across 11% (1.5 billion ha) globe’s land surface. However, long-term viability this ecosystem service can be threatened by expansion simplification systems, which may facilitate evolution resistance pests their control agents. This study uses national dataset present evidence acquisition ryegrass weevil...
Genetic technologies such as gene editing and drive systems have recently emerged potential tools for pest control. Gene drives, in particular, been described solutions to the problems that beset New Zealand. Here we describe current state of present a series examples examine benefits arising from approaches control We consider risks barriers, both biological social, would need be addressed deploy against our key pests with particular reference unique characteristics Zealand's biota,...
New Zealand is under increasing pressure from terrestrial and aquatic pests, weeds diseases that threaten the country's ecosystems economy. Ongoing improvement in existing pest management methodologies novel approaches are required response to public concerns about animal welfare, increasingly stringent trade requirements, abolition of groups pesticides resistance as well as, possibly, biological control agents. Surveillance monitoring needed increase chances early interception invasive...
The invertebrate pests most commonly affecting New Zealand's pastoral-based production in 'average' years cause losses of between $1.7B and $2.3B p.a. which up to $0.9B occur on sheep beef farms $1.4B dairy farms. native scarab grass grub is the costly pest causing $140–380 M $75–205 annually. exotic scarab, black beetle, although only approximately 1 ha, costs farmers $223 $19 Porina $84 $88 respectively. Pasture nematodes are estimated cost $274 for $326 farmers. Two pests, Argentine stem...
The current global COVID-19 pandemic has led to a deep and multidimensional crisis across all sectors of society. As countries contemplate their mobility social-distancing policy restrictions, we have unique opportunity re-imagine the deliberative frameworks value priorities in our food systems. Pre-pandemic systems at global, national, regional local scales already needed revision chart common vision for sustainable ethical futures. Re-orientation is also by relevant sciences, traditionally...
Land is a finite resource; land use affects the environment and economy. Despite its importance, decisions on are not always being made using science-informed policy. This paper was developed from information presented at ‘Collision of Use Forum’ in August 2010, subsequent discussion. Recommendations include establishment national Management Forum, review current guidelines for management, accommodation natural capital ecosystem services considerations management processes, education...
Summary A possible explanation for low success rates when introducing natural enemies to new regions biological control of insect pests is that they fail adapt their conditions. Therefore it has been widely recommended practitioners increase the probability local adaptation by maximizing genetic variation released. An alternative recommendation use climate matching identify native populations may already possess traits suited region. However, support these recommendations weak through lack...
Summary 1. One of the ongoing challenges in molecular biology is to develop rapid, accurate and reliable techniques identify organisms. This contribution evaluates value DNA melt peak analysis for identification pests pathogens significant biosecurity. 2. The method evaluated this study capitalises on observation that double‐stranded separates into single strands (melts) at a temperature dependant nucleotide sequence strands. shape peaks from polymerase chain reaction (PCR) products using...
Neotyphodium lolii , an endophytic fungus of perennial ryegrass, deters Argentine stem weevil, Listronotus bonariensis important insect pest pastures in New Zealand. Deterrence is apparently due to several alkaloids the produces. We asked if also affects third trophic level. Specifically, we tested different isolates altered growth and survival parasitoid, Microctonus hyperodae . Adult weevils were collected from paddocks near Lincoln, Zealand maintained environmental chamber. Weevils...
Journal Article Establishment and Phenology of the Parasitoid Microctonus hyperodae (Hymenoptera: Braconidae) in New Zealand Get access Stephen L. Goldson, Goldson AgResearch, Canterbury Agriculture Science Centre, P.O. Box 60, Lincoln, Search for other works by this author on: Oxford Academic PubMed Google Scholar John R. Proffitt, Proffitt David B. Baird Environmental Entomology, Volume 27, Issue 6, 1 December 1998, Pages 1386–1392, https://doi.org/10.1093/ee/27.6.1386 Published: 01 1998...
(1) Laboratory studies on Microctonus aethiopoides, a parasitoid of Sitona discoideus, established that the development temperature thresholds its egg and larval stages combined pupal stage were 9-8 8 2 'C, respectively. Additionally, pupae required 144 4 125-4 day degrees (0D), respectively, for development. This species can complete two generations year, when showing usual aestivatory behaviour synchronized with S. discoideus. (2) After arriving in an uncolonized district, populations M....
Abstract Sitona discoideus Gylh., an introduced pest of lucerne in New Zealand, exhibits univoltine, aestivatory seasonality Canterbury and Otago, with each generation appearing late December. Some two weeks after the December emergence adults, flights to aestivation sites commenced. These were commonly remote from stands included such places as under stones or at base trees, fence posts, etc. At commencement aestivation, indirect flight muscles atrophied rapidly, only redevelop some 6–8...
Abstract To improve the precision of understanding phenology Listronotus bonariensis (Kuschel), samples were collected at regular intervals near Canterbury, New Zealand, and seasonal changes in their reproductive morphology monitored by dissection. It was demonstrated that adult weevils enter hibernatory diapause early March remain this state until late July when activity resumes. Adults emerging February may immediately. The existence further supported its associated cessation mating,...