scholarly journals Prevalence of tomato potato psyllid (Bactericera cockerelli Sulc) on red capsicum fruit in choice and nochoice tests

2016 ◽  
Vol 69 ◽  
pp. 138-142
Author(s):  
L.E. Jamieson ◽  
N.E.M. Page-Weir ◽  
M.J. Griffin ◽  
S.P. Redpath ◽  
A. Chhagan
Keyword(s):  
High Pressure ◽  
New Zealand ◽  
Fruit Body ◽  
The Body ◽  
Potato Psyllid ◽  
Bactericera Cockerelli ◽  
Low Incidence ◽  
Red Capsicum ◽  
Certification Requirements

Tomato potato psyllid (TPP; Bactericera cockerelli) was first recorded in New Zealand in 2006 Exports to Australia must be fumigated with methyl bromide (MB) to comply with New Zealands phytosanitary export certification requirements Fumigation reduces the quality of the capsicums In tests using high densities of TPP adults TPP laid eggs mainly on the top of the calyx and the stem and some on the body of the fruit although far fewer eggs than were laid on tomato or capsicum leaves Given the choice between capsicum fruit body stem and calyx or capsicum leaves 992995 of eggs were laid on leaves Nymphs that hatched from the few eggs laid on the calyx and stem did not survive indicating that capsicum fruit are a poor host for TPP No eggs were laid beneath the capsicum calyx Some exported capsicums are washed using high pressure washing equipment which might dislodge TPP eggs The very low incidence and survival of TPP on capsicum fruit could result in this fruit already meeting or exceeding the phytosanitary requirements of the importing country

scholarly journals A volatile compound 2undecanone increases walking but not flying tomato potato psyllid movement toward an odour source

2014 ◽  
Vol 67 ◽  
pp. 184-190 ◽  
Author(s):  
M.M. Davidson ◽  
R.C. Butler ◽  
N.M. Taylor ◽  
M-C. Nielsen ◽  
C.E. Sansom ◽  
...  
Keyword(s):  
New Zealand ◽  
North America ◽  
Integrated Pest Management ◽  
Pest Management ◽  
Volatile Compound ◽  
Management Strategy ◽  
Potato Psyllid ◽  
Bactericera Cockerelli ◽  
Odour Source ◽  
Important Pest

Bactericera cockerelli (tomato potato psyllid; TPP) is an important pest of solanaceous crops in New Zealand and North America A volatile compound that alters the behaviour of TPP could be developed into a component of an integrated pest management strategy for solanaceous crops One compound 2undecanone was found to increase the percentages of female and male TPP (65 P

scholarly journals Investigation into the entry pathway for tomato potato psyllid Bactericera cockerelli

2011 ◽  
Vol 64 ◽  
pp. 259-268 ◽  
Author(s):  
K.L. Thomas ◽  
D.C. Jones ◽  
L.B. Kumarasinghe ◽  
J.E. Richmond ◽  
G.S.C. Gill ◽  
...  
Keyword(s):  
New Zealand ◽  
Pathway Analysis ◽  
Potato Psyllid ◽  
Bactericera Cockerelli ◽  
Candidatus Liberibacter Solanacearum ◽  
Entry Pathway ◽  
Initial Investigation ◽  
Candidatus Liberibacter

The tomato potato psyllid (TPP) Bactericera cockerelli (Hemiptera Triozidae) was first notified to the New Zealand Ministry of Agriculture and Forestry (MAF) in May 2006 although it has been suggested by several authors to have been present in New Zealand in 2005 MAF undertook an entry pathway analysis during the initial investigation into TPP in 2006 TPP is a vector of the bacteriumlike pathogen Candidatus Liberibacter solanacearum (liberibacter) and MAF further analysed the entry pathway of TPP during the liberibacter incursion response in 2008 This paper summarises the data and reasoning behind the conclusion that TPP was most plausibly introduced to New Zealand as a result of smuggling rather than through slippage on regulated pathways

scholarly journals Main characteristics to distinguish Bactericera cockerelli from other psyllids in New Zealand

2009 ◽  
Vol 62 ◽  
pp. 411-411
Author(s):  
P.J. Dale ◽  
M-C. Nielsen
Keyword(s):  
New Zealand ◽  
Dorsal Surface ◽  
The Other ◽  
Potato Psyllid ◽  
Bactericera Cockerelli ◽  
Size And Shape

The tomato/potato psyllid Bactericera cockerelli (Sulc) (Hemiptera Triozidae) is found throughout most of New Zealand along with a range of native and other introduced psyllids all belonging to the superfamily Psylloidea The Psylloidea contains six families of which four are recorded from New Zealand (Psyllidae Calophyidae Homotomidae and Triozidae) Species belonging to Triozidae have trifurcate branching on the basal vein of the forewing in contrast to the other psyllid families in New Zealand which have bifurcate branching Bactericera cockerelli can be distinguished from other Triozidae species by the number of inner apical spurs on the tibiae of the hind legs (2) size and shape of the cubital cell in the forewing (short and compact) absence of long setae on vertex and dorsal thoracic surfaces and the lack of well developed genal cones Illustrations of these characters can be seen on insectwatchcom Usually body markings in insects are not suitable for identification purposes since these are likely to vary However the very distinct markings (white marginal and inner patch) on the vertex (dorsal surface of head) of B cockerelli seem stable and are a very useful characteristic for distinguishing this species from other psyllids in New Zealand

scholarly journals Sulphur reduces egglaying in laboratory trials with tomato potato psyllid (Bactericera cockerelli)

2013 ◽  
Vol 66 ◽  
pp. 386-386
Author(s):  
R. Gardner-Gee
Keyword(s):  
New Zealand ◽  
Settlement Patterns ◽  
Insect Pests ◽  
Pest Species ◽  
Potato Psyllid ◽  
Bactericera Cockerelli ◽  
Laboratory Studies ◽  
Candidatus Liberibacter ◽  
Assay Design ◽  
Whole Plants

Sulphur is mainly used as a fungicide but is known to have insecticidal properties against some insect pests A series of laboratory studies was conducted to assess its effect on the tomato potato psyllid (Bactericera cockerelli; TPP) a recently established pest species in New Zealand that transmits the bacterium Candidatus Liberibacter solanacearum (Lso) Short assays (8805; 24 h) using dipped leaves indicated that fresh sulphur residues had no discernible impact on TPP settlement patterns or onleaf behaviour However longer assays (8805; 72 h) using whole plants indicated that sulphur residues can disrupt egglaying behaviour but the effect was dependent on the assay design In 72 h choice assays TPP laid fewer eggs on plants sprayed with sulphur compared with control plants In nochoice assays sulphur residues did not consistently reduce egglaying Together these results suggest that sulphur may slow the buildup of TPP populations within crops by deterring egglaying However the lack of repellence or antifeeding properties means that sulphur treatments alone may not be sufficient to prevent the transmission of Lso by TPP

Noncrop host plants prime real estate for the tomato potato psyllid in New Zealand

2015 ◽  
Vol 68 ◽  
pp. 441-441 ◽  
Author(s):  
A.M. Barnes ◽  
N.M. Taylor ◽  
J. Vereijssen
Keyword(s):  
New Zealand ◽  
Pilot Study ◽  
Host Plants ◽  
Economic Losses ◽  
Potato Psyllid ◽  
Life Stages ◽  
Bactericera Cockerelli ◽  
Vegetation Surveys ◽  
Candidatus Liberibacter ◽  
Solanaceae Family

The tomato potato psyllid Bactericera cockerelli (TPP) and the bacterium it vectors Candidatus Liberibacter solanacearum (CLso) are collectively responsible for significant economic losses across New Zealands horticulture industry Crop host plants of TPP include potatoes tomatoes capsicums/ chilli peppers tamarillos and tobacco along with lessobvious species outside the Solanaceae family such as kumara (Convolvulaceae) Most of these plants are shortlived summer annuals which raises the question what happens to TPP when crops are absent Many less conspicuous noncrop plants also play host to TPP some of which are perennial and therefore present yearround potentially acting as reservoirs of both TPP and CLso in the absence of a crop A pilot study in 2012 and subsequent vegetation surveys in Canterbury and Hawkes Bay in 201314 confirmed the presence of all TPP life stages on multiple noncrop species yearround in both areas despite adverse climatic events such as winter frosts and snowfall These results have farreaching impacts on the way growers should manage the borders surrounding their crops and their land in the offseason

scholarly journals Low incidence of Liberibacterpositive psyllids (Bactericera cockerelli) in Pukekohe potato growing area

2014 ◽  
Vol 67 ◽  
pp. 326-326
Author(s):  
R. Gardner-Gee ◽  
A.J. Puketapu
Keyword(s):  
New Zealand ◽  
Research Station ◽  
Bactericera Cockerelli ◽  
Sampling Area ◽  
Sticky Traps ◽  
Tomato Plants ◽  
Time Period ◽  
Candidatus Liberibacter ◽  
Laboratory Colonies ◽  
Low Incidence

In the Pukekohe region potatoes grown over the summer season without insecticide protection typically have 40 of tubers with symptoms of zebra chip (ZC) a disease caused by the bacterium Candidatus Liberibacter solanacearum (Lso) The bacterium is vectored by the pest psyllid species Bactericera cockerelli known in New Zealand as the tomato potato psyllid (TPP) Although TPP has been present in New Zealand since at least 2006 relatively little is known about the incidence of Lso or the Lsotitre levels in New Zealand TPP populations Preliminary sampling work conducted near the Pukekohe Research Station over the summer of 2013/2014 is presented Onehundred TPP adults were collected from sticky traps in potato fields over 4 months Each insect was tested for the presence of Lso using established qPCR diagnostic protocols For comparison 100 TPP from laboratory colonies were also tested for Lso over the same time period Although plants with ZC symptoms were widespread in the sampling area only 2 of the TPP sampled from sticky traps had detectable levels of Lso and Lsotitre in the Lsopositive TPP was extremely variable In contrast colony TPP (originally collected from potatoes and then maintained on tomato plants) tested 100 positive for Lso and had consistently high Lsotitre

scholarly journals Laboratory studies to determine the efficacy of selected insecticides on tomato/potato psyllid

2009 ◽  
Vol 62 ◽  
pp. 145-151 ◽  
Author(s):  
N.A. Berry ◽  
M.K. Walker ◽  
R.C. Butler
Keyword(s):  
New Zealand ◽  
Crop Yields ◽  
Potato Psyllid ◽  
Bactericera Cockerelli ◽  
Laboratory Studies ◽  
Control Options ◽  
Potential Impact ◽  
Laboratory Bioassays

Tomato/potato psyllid (Bactericera cockerelli) was first recorded in New Zealand in 2006 and is now a significant pest of solanaceous crops in both glasshouses and fields Given the potential impact of this insect and its associated pathogen(s) on crop yields immediate control options are required Thirteen insecticides were selected for testing In laboratory bioassays insecticides were applied at recommended field rates as a spray (12 chemicals) or a seedling drench (1 chemical) The recorded mortality of tomato/potato psyllid nymphs 48 h after spraying with dichlorvos lambdacyhalothrin methomyl taufluvalinate methamidophos and abamectin was 98100 After 168 h applications of azadirachtin spiromesifen abamectin spirotetramat and thiacloprid gave 82100 mortality while buprofezin pymetrozine and imidacloprid drench gave 3653 mortality of nymphs Further tests are required to confirm the efficacy under cropping conditions

scholarly journals Immigration and ‘Brain Waste’

2020 ◽  
Vol 16 (4) ◽  
Author(s):  
Eyal Apatov ◽  
Asha Sundaram
Keyword(s):  
New Zealand ◽  
Labour Market ◽  
Education System ◽  
Census Data ◽  
Gdp Per Capita ◽  
Specific Reference ◽  
Demand And Supply ◽  
Per Capita ◽  
Certification Requirements

We analyse ‘brain waste’, or underutilisation of immigrant skills in the New Zealand labour market, with specific reference to immigrants from APEC member countries. Using census data, we find wide variation across APEC countries in the likelihood that a typical immigrant from these countries with a tertiary qualification works in a skilled occupation, consistent with brain waste. Our exploration of the drivers of brain waste reveals that GDP per capita of the country of origin of immigrants, its distance from New Zealand, expenditure on education and colonial links to New Zealand are negatively related to brain waste. After accounting for these drivers, there is no evidence that brain waste is mitigated among immigrants from APEC member countries. Our study highlights the need for efforts to facilitate utilisation of immigrant skills in the region, such as cooperation among APEC members in standardising certification requirements and dissemination of information on skills demand and supply and the nature and quality of the education system.

scholarly journals Importing Tamarixia triozae into containment in New Zealand

2009 ◽  
Vol 62 ◽  
pp. 412-412 ◽  
Author(s):  
P.J. Workman ◽  
S.A. Whiteman
Keyword(s):  
Biological Control ◽  
New Zealand ◽  
Biological Control Agent ◽  
Classical Biological Control ◽  
Control Agent ◽  
Bacterial Disease ◽  
Potato Psyllid ◽  
Bactericera Cockerelli ◽  
Major Pest ◽  
Host Specificity Testing

The parasitoid Tamarixia triozae (Burks) (Hymenoptera Eulophidae) has been imported from Mexico into containment in New Zealand as a potential biological control agent for the tomato/potato psyllid Bactericera cockerelli (Sulk) (Hemiptera Triozidae) The tomato/potato psyllid is a North American pest that was first reported in New Zealand in 2006 This psyllid has been found to vector the bacterial disease Candidatus Liberibacter solanacearum or psyllarous and has now become a major pest on both greenhouse and outdoor solanaceous crops Inundative releases of T triozae have been used to control the tomato/potato psyllid in greenhouse crops in North America In New Zealand this parasitoid may also have potential for the classical biological control of this psyllid Data to support an application for the full release of this parasitoid will be obtained by comparing the efficacy of T triozae and an undescribed species of Tamarixia found in New Zealand in 1997; establishing the ability of T triozae to parasitise the tomato/potato psyllid on capsicums tomatoes and potatoes; and undertaking host specificity testing using indigenous psyllids Approval to import T triozae was obtained under the HSNO Act 1996 and HSNO Order 1998 (ERMA Approval Code NOC00253039) and the Biosecurity Act 1993 (MAF Biosecurity Permit to Import Live Animals 2008035896)

scholarly journals Responding to the establishment of new pests and diseases What can be learnt from tomato potato psyllid and Candidatus Liberibacter solanacearum in New Zealand

2015 ◽  
Vol 68 ◽  
pp. 76-84 ◽  
Author(s):  
D.A.J. Teulon ◽  
M.G. Hill
Keyword(s):  
New Zealand ◽  
Pest Management ◽  
Host Plant ◽  
Crop Production ◽  
Research Programme ◽  
Potato Psyllid ◽  
Bactericera Cockerelli ◽  
Plant Interactions ◽  
Pests And Diseases ◽  
Small Industries

The response to the incursion of tomato potato psyllid (TPP) Bactericera cockerelli first recorded in New Zealand in 2006 and 2008 respectively has been well documented However development of a bioprotection research programme to underpin effective crop production in the presence of TPP/CLso has not This paper examines the strategic and operational responses of the main Crown Research Institute involved in parallel with industry actions in terms of the coordination prioritisation and implementation of a proportionally increasing research programme after it became clear that eradication of these organisms was not feasible The establishment of TPP/CLso in New Zealand underlines the fragility of current integrated pest management (IPM) systems and the challenges faced by small industries to the establishment of poorly understood organisms with complex pest/disease/host plant interactions whose impacts were not immediately obvious Insights are provided into how a research response to similar establishments might be developed in the future

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