Systematic mass rearing and release ofMicroctonus hyperodae (Hym.: Braconidae, Euphorinae), a parasitoid of the argentine stem weevilListronotus bonariensis (Col.: Curculionidae) and records of its establishment in New Zealand

Sterile insect releases to manage or eradicate pests have been deployed increasingly in many countries against diverse targets but have not previously been seriously considered in New Zealand The increasing cost of incursions of exotic species warrants a reconsideration of the potential for any approach that can help to defend New Zealand The success of the sterile insect technique is dependent on adequate understanding of pest biology techniques for mass rearing of sufficient numbers to overcome the target population mass sterility (with excellent quality assurance) competitive fitness of released insects and release systems that ensure effective spatial targeting Legislative hurdles such as the HSNO Act (1996) may need attention to enable this approach for insects that have arrived after 1998 The first use of the sterile insect technique in New Zealand is against the painted apple moth and is a useful case study to demonstrate the potential of the approach in biosecurity

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The potential management of the drone fly (Eristalis tenax) as a crop pollinator in New Zealand

New Zealand Plant Protection ◽

10.30843/nzpp.2019.72.304 ◽

2019 ◽

Vol 72 ◽

pp. 221-230 ◽

Cited By ~ 5

Author(s):

Brad G. Howlett ◽

Megan Gee

Keyword(s):

New Zealand ◽

Relevant Literature ◽

Mass Rearing ◽

Field Crop ◽

Bee Pollination ◽

Successful Management ◽

Pollinator Effectiveness ◽

Pak Choi ◽

User Interests ◽

Land User

The drone fly (Eristalis tenax) pollinates many crops and is found almost worldwide. Its successful management as a field-crop pollinator would provide an additional option to augment bee pollination. We reviewed literature to assess their management potential. A literature search was conducted for information on drone-fly abundance across New Zealand crops, pollinator effectiveness, lifecycle-requirements and potential for mass rearing. Relevant literature was then evaluated to assess the feasibility, benefits and limitations of their management. Eristalis tenax is a proven pollinator of pak choi (Brassica rapa spp. chinensis), kiwifruit (Actinidia deliciosa) and onion (Allium cepa), and visits the flowers of several more crops in New Zealand. It readily completes its lifecycle under laboratory conditions when reared on various organic materials. No reviewed studies were identified that showed successful management of populations for the purpose of field-crop pollination. Key challenges for their management as field-crop pollinators include: being able to mass rear them at an appropriate scale; retaining numbers within targeted areas in the field; and ensuring their use does not significantly impact on non-target species and land-user interests.

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Laboratory handling and rearing of early instar porina larvae from eggs

New Zealand Plant Protection ◽

10.30843/nzpp.2017.70.58 ◽

2017 ◽

Vol 70 ◽

pp. 250-254

Author(s):

S.R. Atijegbe ◽

S. Mansfield ◽

M. Rostas ◽

C.M. Ferguson ◽

S. Worner

Keyword(s):

New Zealand ◽

Pest Management ◽

Insect Pest ◽

Mass Rearing ◽

Critical Importance ◽

Simple Method ◽

Laboratory Rearing ◽

First Instar ◽

Early Instar

Mass rearing Wiseana (porina) species, a major endemic insect pest in New Zealand pastures, has proved challenging for research and pest management and has presented problems over several decades in the laboratory. Researchers have acknowledged that handling the eggs and first instar larvae are of critical importance during laboratory rearing. A simple method is presented that improves survival of early instar porina larvae. Eggs of three porina species (W. cervinata, W. copularis, W. umbraculata) hatched faster at 22˚C than at 15˚C.

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Mass rearing Pteromalus puparum on Pieris rapae to assist eradication of Pieris brassicae from New Zealand

New Zealand Plant Protection ◽

10.30843/nzpp.2016.69.5892 ◽

2016 ◽

Vol 69 ◽

pp. 126-132 ◽

Cited By ~ 1

Author(s):

N.K. Richards ◽

S. Hardwick ◽

R. Toft ◽

C.B. Phillips

Keyword(s):

New Zealand ◽

High Probability ◽

Pieris Rapae ◽

Practical Method ◽

Mass Rearing ◽

Pieris Brassicae ◽

Eradication Programme ◽

Pteromalus Puparum ◽

Parasitism Rates

Pieris brassicae great white butterfly was first detected in New Zealand in May 2010 in Nelson and since November 2012 has been the target of a Department of Conservation eradication programme Methods were available for killing P brassicae eggs larvae and adults but not pupae To assist eradication a parasitoid of P brassicae pupae Pteromalus puparum was mass reared at Lincoln and released at Nelson locations where there was a high probability of P brassicae pupae being present To avoid transporting P brassicae from Nelson to Lincoln Pt puparum was reared on another of its hosts Pieris rapae which occurs throughout New Zealand Between late February and early April 2015 an estimated 14280 Pt puparum adults from 837 parasitised P rapae pupae were released in Nelson However parasitism of unparasitised P rapae pupae which were used as sentinels for monitoring parasitism rates remained low Although evidence of the releases being effective was weak augmenting Pt puparum populations remains the most practical method for increasing the mortality of P brassicae pupae in Nelson

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Magellanic Cloud Eclipsing Binaries: Primary Distance Indicators

Symposium - International Astronomical Union ◽

10.1017/s007418090011900x ◽

1999 ◽

Vol 190 ◽

pp. 563-566

Author(s):

J. D. Pritchard ◽

W. Tobin ◽

J. V. Clausen ◽

E. F. Guinan ◽

E. L. Fitzpatrick ◽

...

Keyword(s):

New Zealand ◽

Magellanic Cloud ◽

Eclipsing Binaries ◽

Fundamental Parameters ◽

Distance Indicators

Our collaboration involves groups in Denmark, the U.S.A. Spain and of course New Zealand. Combining ground-based and satellite (IUEandHST) observations we aim to determine accurate and precise stellar fundamental parameters for the components of Magellanic Cloud Eclipsing Binaries as well as the distances to these systems and hence the parent galaxies themselves. This poster presents our latest progress.

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Heat-Etching with a Bullivant Type II Simple Freeze-Cleave Device

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100067522 ◽

1970 ◽

Vol 28 ◽

pp. 106-107 ◽

Cited By ~ 1

Author(s):

Ronald S. Weinstein ◽

N. Scott McNutt

Keyword(s):

New Zealand ◽

General Hospital ◽

Massachusetts General Hospital ◽

Type I ◽

Type Ii ◽

Collaborative Effort ◽

Temperature And Pressure ◽

The University

The Type I simple cold block device was described by Bullivant and Ames in 1966 and represented the product of the first successful effort to simplify the equipment required to do sophisticated freeze-cleave techniques. Bullivant, Weinstein and Someda described the Type II device which is a modification of the Type I device and was developed as a collaborative effort at the Massachusetts General Hospital and the University of Auckland, New Zealand. The modifications reduced specimen contamination and provided controlled specimen warming for heat-etching of fracture faces. We have now tested the Mass. General Hospital version of the Type II device (called the “Type II-MGH device”) on a wide variety of biological specimens and have established temperature and pressure curves for routine heat-etching with the device.

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A Cytochemical Study of Glucose-6-Phosphatase (G-6-PASE) in Cells Participating in Atherogenesis of Rabbit Aorta

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100115924 ◽

1975 ◽

Vol 33 ◽

pp. 460-461

Author(s):

Sidney D. Kobernick ◽

Edna A. Elfont ◽

Neddra L. Brooks

Keyword(s):

Lipid Metabolism ◽

New Zealand ◽

Aortic Wall ◽

Rabbit Aorta ◽

Plaque Formation ◽

Metabolic Changes ◽

Atherosclerotic Plaques ◽

Cytochemical Study ◽

Cellular Alteration ◽

New Zealand White Rabbits

This cytochemical study was designed to investigate early metabolic changes in the aortic wall that might lead to or accompany development of atherosclerotic plaques in rabbits. The hypothesis that the primary cellular alteration leading to plaque formation might be due to changes in either carbohydrate or lipid metabolism led to histochemical studies that showed elevation of G-6-Pase in atherosclerotic plaques of rabbit aorta. This observation initiated the present investigation to determine how early in plaque formation and in which cells this change could be observed.Male New Zealand white rabbits of approximately 2000 kg consumed normal diets or diets containing 0.25 or 1.0 gm of cholesterol per day for 10, 50 and 90 days. Aortas were injected jin situ with glutaraldehyde fixative and dissected out. The plaques were identified, isolated, minced and fixed for not more than 10 minutes. Incubation and postfixation proceeded as described by Leskes and co-workers.

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