scholarly journals Trends in Vertebrate Pesticide Use and New Developments: New Zealand Initiatives and International Implications

Author(s):  
Charles Eason ◽  
Elaine Murphy ◽  
Shaun Ogilvie ◽  
Helen Blackie ◽  
James Ross ◽  
...  
2008 ◽  
Vol 61 ◽  
pp. 137-146
Author(s):  
R.F. Van_Toor ◽  
S.L.H. Viljanen-Rollinson ◽  
D.A.J. Teulon

Pesticides for weed insect and disease control in potatoes in Canterbury were assessed via spray diaries tabulated using SprayView Analyst (HortPlus) Spray diaries for 1730 seed crops in six growing seasons (19992006) and 71100 process crops in four growing seasons (20032007) gave data for 13 of the area grown for seed for use by process factories and 28 of the area grown for process potatoes in New Zealand In the most recent growing seasons of the survey seed crops were mostly treated with metribuzin herbicide pencycuron mancozeb/metalaxylM azoxystrobin and propineb fungicides and methamidophos pymetrozine and pirimicarb insecticides Process crops had mostly cyanazine glyphosate linuron and metribuzin herbicides and pencycuron azoxystrobin chlorothalonil copper hydroxide fluazinam and mancozeb/metalaxylM fungicides Weeds pathogens of early and late blight and aphids were presumed the primary pest targets Pesticide resistance strategies were followed in later years in half of seed crops and most process crops


1991 ◽  
Vol 15 (4) ◽  
pp. 331-363 ◽  
Author(s):  
J.R. Grehan

Contributions to the method and theory of panbiogeography are reviewed in relation to a New Zealand interest that arose from the late 1970s and early 1980s. Panbiogeography was developed by Leon Croizat in the 1950s, but ignored by prominent evolutionary theorists in favour of traditional explanations of geographic distribution established from Darwin's time. The New Zealand interest has provided a critical reappraisal of Croizat's work and its continued relevance to evolutionary theory through new developments in method and synthesis. Panbiogeography is presented in this review as an exploration of Hooker's paradox - the problem of integrating contradictory aspects of earth and life in space/time. Croizat's approach to biogeography involved analyses of geographic distribution by linking localities together to form line graphs called tracks. Analysis and interpretation of tracks has been developed by application of graph theory techniques for quantitative and statistical measures of track inter-relationships and their biogeog raphic significance. Panbiogeographic approaches have developed the application of defining features called 'baselines' that represent spatial characters for biogeographic homology. Ocean basins comprise important biogeographic features for the baseline orientation of tracks. This approach has resulted in a new classification system where ocean basins are the natural biogeographic regions while major landmasses are located at regional boundaries. This subsumes the conflicts and contradictions inherent in the geographic classifications developed from Wallace onwards. Panbiogeographic correlation of tracks with tectonic features provides a geographic basis for interpreting the evolutionary relationship between earth and life. Different standard tracks are compared in reference to the associated tectonic features such as spreading ridges, fault systems and suture zones. Novel geological predictions generated from distributional and tectonic congruence illustrated for the Americas, and for New Zealand where a novel parallel arcs model has been proposed for its natural history and evolution. The conceptual implications for evolutionary ecology are explored in terms of life evolving as a 'geological' layer where organism-environment relationships evolve through coconstruction of interdependent processes rather than by interaction of organisms and environments as separately preformed entities. Progress in panbiogeography over the last decade provides a significant contribution to evolutionary theory through the continued development of a spatiotemporal synthesis for understanding biological and geological processes responsible for local and global biodiversity.


2009 ◽  
Vol 37 (2) ◽  
pp. 85-94 ◽  
Author(s):  
R. B. Chapman ◽  
N. A. Berry ◽  
D. A. J. Teulon
Keyword(s):  

Author(s):  
I. Howie
Keyword(s):  

BEFORE discussing grassland, it would probably be useful to put Unheld Kingdom agriculture into perspective, and compare total land and its utilization with New Zealand figures.


2018 ◽  
Vol 71 ◽  
pp. 351 ◽  
Author(s):  
Sundar Tiwari ◽  
David J. Saville ◽  
Steve D. Wratten

Seedlings of kale cultivars are highly susceptible to direct feeding by the wheat bug Nysius huttoni (Hemiptera: Lygaeidae), an endemic New Zealand insect pest. Damage from this pest leads to reduced plant establishment so is currently managed by prophylactic use of pesticides. Encouraging farmers to use less susceptible kale cultivars can reduce pesticide costs and improve the environment. A series of choice and no-choice tests was conducted in a controlled-temperature room to evaluate the relative susceptibility of seedlings of the six most widely grown kale cultivars in New Zealand (Gruner, Kestrel, Regal, Colear, Corka, and Sovereign). Bugs settled most readily on Kestrel in both sets of tests, although mean settlement times did not differ significantly among cultivars. However, feeding damage on Kestrel occurred significantly earlier than on Corka or Gruner. These results indicate that Kestrel is the cultivar most susceptible to wheat bugs and that pesticide use could be reduced if less susceptible cultivars were more widely grown in New Zealand. These results also provide important information for developing integrated-management protocols for brassica pests.


2018 ◽  
Vol 30 (8) ◽  
pp. 1049 ◽  
Author(s):  
M. J. Bertoldo ◽  
P. H. Andraweera ◽  
E. G. Bromfield ◽  
F. L. Cousins ◽  
L. A. Lindsay ◽  
...  

Research in reproductive science is essential to promote new developments in reproductive health and medicine, agriculture and conservation. The Society for Reproductive Biology (SRB) 2017 conference held in Perth (WA, Australia) provided a valuable update on current research programs in Australia and New Zealand. This conference review delivers a dedicated summary of significant questions, emerging concepts and innovative technologies presented in the symposia. This research demonstrates significant advances in the identification of precursors for a healthy pregnancy, birth and child, and discusses how these factors can influence disease risk. A key theme included preconception parental health and its effect on gametogenesis, embryo and fetal development and placental function. In addition, the perturbation of key developmental checkpoints was shown to contribute to a variety of pathological states that have the capacity to affect health and fertility. Importantly, the symposia discussed in this review emphasised the role of reproductive biology as a conduit for understanding the transmission of non-communicable diseases, such as metabolic disorders and cancers. The research presented at SRB 2017 has revealed key findings that have the prospect to change not only the fertility of the present generation, but also the health and reproductive capacity of future generations.


2009 ◽  
Vol 62 ◽  
pp. 321-327 ◽  
Author(s):  
J.T.S. Walker ◽  
N.M. Park ◽  
B.E. Clothier ◽  
D.W.L. Manktelow ◽  
C.W. Van_Den_Dijssel ◽  
...  

The New Zealand horticultural sector has made substantial progress in pesticide risk reduction by implementing sustainability programmes Apple and winegrape pesticide use was analysed to measure changes in human and aquatic ecotoxicity arising from these initiatives using the Hazardous Substances and New Organism 1996 Act (HSNO) classification system In 1995 insecticide use on apples and winegrapes was 116 and 031 kg ai/ha respectively while fungicide loadings were similar about 30 kg ai/ha Since then insecticide loading on apples has decreased by 80 with much lower potential human toxicity Growers following Integrated Fruit Production guidelines reduced fungicide loadings by 45 but expansion of organic apple production increased the sectors total fungicide use The wine sector has reduced their total agrichemical loading of insecticides by 72 and fungicides by 62 mostly through lower use of sulphur fungicides Both sectors have reduced their use of agrichemicals that are potentially toxic to aquatic ecosystems


2021 ◽  
Author(s):  
◽  
Therese Crocker

<p>For the past quarter-century the New Zealand government has negotiated with Māori groupings to find ways of compensating for the Crown’s historical breaches of the Treaty of Waitangi. The negotiations take place between mandated claimant negotiators and officials who represent the executive arm of government; the resultant settlements are then endorsed by legislation that declares them to be ‘full and final’ resolutions of historical grievances. This thesis analyses the way New Zealand governments conceived, introduced and implemented policies to address the claims during the pioneering years 1988–1998. The foundational policies worked out in this decade bedded-in the Treaty claims settlement processes which are now nearing their end. Through examining official archives, the thesis finds that these processes initially emerged as policy-driven responses to a combination of factors, such as the broad context of the ‘Māori Renaissance’, social shifts in understanding the past, legal cases and political pressure from iwi.  The thesis goes on to explore several years of experimental negotiations and policy formulation which culminated in the Crown’s presentation in 1994 of both a suite of draft policies intended to offer a comprehensive approach to the negotiations process and a notional quantum of $1 billion to settle all historical claims (the ‘fiscal envelope’). It demonstrates that while this package was introduced to shape and contain the emergent settlement mechanisms and their outcomes, policies continued to be modified in highly significant ways. The major settlements negotiated with Waikato-Tainui and Ngāi Tahu, in particular, led to new developments which established the broad shapes of Treaty settlements, and key aspects of them, from the end of the twentieth century onwards.  Over 1988–1998, then, the Treaty settlements process transitioned from ad-hoc development of policies and arrangements into an entrenched system, yet one that was flexible enough to change in the course of negotiations with new claimant groups.</p>


2021 ◽  
Author(s):  
◽  
Therese Crocker

<p>For the past quarter-century the New Zealand government has negotiated with Māori groupings to find ways of compensating for the Crown’s historical breaches of the Treaty of Waitangi. The negotiations take place between mandated claimant negotiators and officials who represent the executive arm of government; the resultant settlements are then endorsed by legislation that declares them to be ‘full and final’ resolutions of historical grievances. This thesis analyses the way New Zealand governments conceived, introduced and implemented policies to address the claims during the pioneering years 1988–1998. The foundational policies worked out in this decade bedded-in the Treaty claims settlement processes which are now nearing their end. Through examining official archives, the thesis finds that these processes initially emerged as policy-driven responses to a combination of factors, such as the broad context of the ‘Māori Renaissance’, social shifts in understanding the past, legal cases and political pressure from iwi.  The thesis goes on to explore several years of experimental negotiations and policy formulation which culminated in the Crown’s presentation in 1994 of both a suite of draft policies intended to offer a comprehensive approach to the negotiations process and a notional quantum of $1 billion to settle all historical claims (the ‘fiscal envelope’). It demonstrates that while this package was introduced to shape and contain the emergent settlement mechanisms and their outcomes, policies continued to be modified in highly significant ways. The major settlements negotiated with Waikato-Tainui and Ngāi Tahu, in particular, led to new developments which established the broad shapes of Treaty settlements, and key aspects of them, from the end of the twentieth century onwards.  Over 1988–1998, then, the Treaty settlements process transitioned from ad-hoc development of policies and arrangements into an entrenched system, yet one that was flexible enough to change in the course of negotiations with new claimant groups.</p>


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