Mr Jianfeng Liu

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Doctoral Candidate - Doctor of Philosophy

Research | Current

The tomato potato psyllid (TPP), Bactericera cockerelli (Hemiptera: Triozidae), has been an invasive pest species in Solanaceae crop growing regions of New Zealand since May 2006, causing serious damages in particular to potatoes (Solanum tuberosum), tomatoes (Lycopersicon esculentum), bell pepper (Capsicum annuum), eggplant (Solanum melongena), tamarillo (Solanum betaceum), in particular to three traditional Māori food sources( taewa, kūmara and poroporo). Moreover, B. cockerelli vectors ‘Candidatus Liberibacter solanacearum’ and causes a disease known as ‘zebra chip’ (ZC) which results in necrotic flecking and streaking becoming marked when the potatoes were fried.The predatory mite, Amblydromalus limonicus (Acari: Phytoseiidae) has been commercialized for the efficient biological control agent of whiteflies, thrips and psyllid in protected crops. Entomopathogenic fungi have been successfully developed worldwide as biological control agents for many arthropod pests in horticultural crops.

My research studies the interactions between TPP and two of its natural enemies provided, entomopathogenic fungi and Amblydromalus limonicus, and evaluates the transmission efficacy of A. limonicus as vectors of entomopathogenic fungi against TPP.

Related publications:

Liu, J. F., & Zhang, Z. Q. (2017). Development, survival and reproduction of a New Zealand strain of Amblydromalus limonicus (Acari: Phytoseiidae) on Typha orientalis pollen, Ephestia kuehniella eggs, and an artificial diet. International Journal of Acarology43(2), 153-159. http://www.tandfonline.com/doi/abs/10.1080/01647954.2016.1273972

Previous publications:

Liu, J. F., & Zhang, Z. Q. (2016). Effects of short-term exposure to low temperature on survival, development and reproduction of banana-associated Oulenziella bakeri (Acari: Winterschmidtiidae). Systematic and Applied Acarology21(8), 1078-1086. http://www.bioone.org/doi/abs/10.11158/saa.21.8.8

Postgraduate supervision

Professor Zhi-Qiang Zhang and Associate Professor Dr Jacqueline Beggs

Committees/Professional groups/Services

Associate editor, Systematic and Applied Acarology

Membership,Systematic and Applied Acarology Society 

Selected publications and creative works (Research Outputs)

  • Liu, J. (2019). Biocontrol of invasive tomato/potato psyllid Bactericera cockerelli: Effects of predatory mite, entomopathogenic fungi, diets and ants The University of Auckland. ResearchSpace@Auckland.
    URL: http://hdl.handle.net/2292/47255