A5005219890- Biological Control of Invasive Species
- Insect-Plant Interactions and Control
- Forest Insect Ecology and Management
- Hymenoptera taxonomy and phylogeny
- Plant and animal studies
- Insect behavior and control techniques
- Weed Control and Herbicide Applications
- Allelopathy and phytotoxic interactions
- Research on scale insects
- Insect Pest Control Strategies
- Ecology and Vegetation Dynamics Studies
- Lepidoptera: Biology and Taxonomy
- Animal Ecology and Behavior Studies
- Insect and Pesticide Research
- Insect Pheromone Research and Control
- Forest Ecology and Biodiversity Studies
- Plant Pathogens and Fungal Diseases
- Phytoplasmas and Hemiptera pathogens
- Fossil Insects in Amber
- Entomological Studies and Ecology
- Plant Parasitism and Resistance
- Coleoptera Taxonomy and Distribution
- Entomopathogenic Microorganisms in Pest Control
- Insects and Parasite Interactions
- Cassava research and cyanide
Scion
2015-2024
United States Customs and Border Protection
2020-2022
AgResearch
2007-2016
Rotorua Hospital
2007-2016
University of Auckland
2014
Future Forests Research
1998-2008
Commonwealth Scientific and Industrial Research Organisation
2007
Forest Research
1999-2004
Massey University
1996-1997
Abstract Since the 1860s, Australian insects have steadily colonized eucalypts in New Zealand. The rate of colonization has increased markedly over last two decades. This increase may be related to increasing trade between countries. Currently there are 26 specialist eucalypt insect species and approximately 31 polyphagous that can feed on Eucalyptus endemic Australia generally caused more damage than or native insects. Eucalypt‐specific dominated by sap sucking bugs, particularly psyllids,...
Commonly, insects show a progressive decrease in acceptance threshold to sensory cues associated with food or oviposition sites when they are deprived of the opportunity feed oviposit. Such changes have been termed time-dependent. In biological control, candidate agents tested variety cage assays order determine limits their host range. These commonly include choice tests including target species, simultaneous no-choice tests, and sequential tests. We consider possible influence...
The safety record of weed biocontrol was questioned recently when examples damage to nontarget plants were reported overseas Until now systematic investigations feeding have not been performed in New Zealand Results surveys looking for evidence caused by 20 biological control agents released against weeds are presented Most (16) apparently hostspecific However two species (Tyria jacobaeae and Phytomyza vitalbae) recorded attacking native although their attack very minor predictable from...
Contrary to predictions based on host-range testing, the gorse pod moth (GPM) infests pods of several exotic Genisteae and Loteae species, as well target weed Ulex europaeus, throughout New Zealand. The original tests were conducted moths collected in southern England; however, offspring Portuguese also released We investigated whether failure predict non-target attack was because (a) a cryptic species accidentally introduced; (b) asynchrony between oviposition period GPM flowering results...
The invasive eucalyptus tortoise beetle, Paropsis charybdis, defoliates plantations of Eucalyptus nitens in New Zealand. Recent efforts to identify host specific biological control agents (parasitoids) from Tasmania, Australia, have focused on the larval parasitoid wasp, Eadya paropsidis (Braconidae), first described 1978. In has been reared Paropsisterna agricola (genus abbreviated Pst.), a smaller paropsine that feeds as larva juvenile rather than adult foliage nitens. To determine which...
Abstract Invasive species such as insects, pathogens, and weeds reaching new environments by traveling with the wind, represent unquantified difficult‐to‐manage biosecurity threats to human, animal, plant health in managed natural ecosystems. Despite importance of these invasion events, their complexity is reflected lack tools predict them. Here, we provide first known evidence showing that long‐distance aerial dispersal invasive insects wildfire smoke, a potential carrier species, driven...
Abstract Thaumastocoris peregrinus is a sap‐feeding insect native to A ustralia that has become serious global pest of Eucalyptus species. To date, T. been found in more than 10 countries across E urope, frica, S outh merica and O ceania. In the present study, we used climate modelling software climex (Hearne Scientific Software Pty Ltd, Australia) predict potential distribution globally N ew Z ealand. parameters were based on experimental data obtained study from records collated insect's...
Cotesia urabae is a solitary larval endoparasitoid that was introduced into New Zealand in 2011 as classical biological control agent against Uraba lugens. A detailed knowledge of its reproductive biology required to optimize mass rearing efficiency. In this study, the courtship and mating behaviour C. described investigated from series experiments, conducted understand factors influence male success. males exhibited high attraction virgin females but not mated females, whereas showed no...
Abstract There is a growing body of evidence that many hymenopteran parasitoids make use olfaction as the primary mechanism to detect and locate hosts. In this study, series bioassays was conducted investigate orientation behaviour gum leaf skeletonizer larval parasitoid C otesia urabae A ustin & llen ( H ymenoptera: Braconidae) in both Y‐tube four‐arm olfactometers. olfactometer, male . were attracted only virgin conspecific females. Host‐plant leaves, damaged host larvae, larvae...
Journal Article Dispersal of Mated Female Hessian Flies (Diptera: Cecidomyiidae) in Field Arrays Host and Nonhost Plants Get access T. M. Withers, Withers 1 Department Plant Science, Massey University, Palmerston North, New Zealand CRC for Tropical Pest Management, c/-A.F.R.S., P.O. Box 36, Sherwood, Q4075, Australia. Search other works by this author on: Oxford Academic PubMed Google Scholar O. Harris, Harris 2 Hort Research, Mt. Albert Research Centre, Private Bag 92169, Auckland, Zealand....
The gall wasp Ophelimus eucalypti (Gahan) is a pest of New Zealand Eucalyptus botryoides Sm and saligna (section Transversaria) host range also includes E grandis Maiden deanei There were no differences between female waspinduced galls arising from or Gall mass peaks when larvae are only one third their maximum Larvae grow to fill the entire cavity prior senescence Maximum adult emergence occurs in August December Adults live for about 10 days females produce up 350 eggs Three species...
Background: Eucalypt species are grown in New Zealand for a variety of purposes. Paropsine leaf beetles (Coleoptera: Chrysomelidae) impact eucalypt plantations Australia and other countries where eucalypts have become established. Six eucalypt-feeding paropsines from established to date. Paropsis charybdis Stål is currently regarded as the worst pest. Paropsisterna cloelia (Stål) 2016 it remains uncertain whether its potential impacts will exceed those caused by P. charybdis. Methods: In...