Charles Sturt University
Charles Sturt University

Ginger Korosi

 Ginger Korosi

Prior to starting her PhD, Ginger worked for the Victorian Department of Environment and Primary Industries Rutherglen Centre. During her 8 years employed as a Research Scientist, Ginger's work included laboratory, glasshouse and field evaluation of grape phylloxera (Dactulosphaira vitifoliae) genotype and grapevine rootstock interactions. Ginger also performed grapevine phylloxera risk assessments looking at phylloxera survival under heat treatment conditions, in composting winery waste and in must.

Ginger was awarded an Australian Postgraduate Award in 2013 to study a PhD at Charles Sturt University. She was also awarded a Grape and Wine Research and Development Corporation top-up scholarship.

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Specialization:     Biological control of grapevine phylloxera.

Focus area:    Entomopathogenic fungi as potential biocontrol agents of grape phylloxera.

Biological control agents are natural enemies of agricultural pests and include invertebrates and entomopathogenic fungi. Naturally occurring entomopathogenic fungi have the ability to parasitise insects and arachnids. They are generalist pathogens causing mortality to a broad range of insect hosts, making them suitable for extensive investigations as biological control agents of insect pests.

Grapevine phylloxera (Daktulosphaira vitifoliae) is a quarantine grapevine pest in Australia. The radicole form of phylloxera attacks the root system of European grapevines (Vitis vinifera) causing mortality of the vine. Thus far phylloxera has been managed by using American rootstocks where phylloxera does not develop in as high numbers or by adhering to strict quarantine regulation to keep the insect out of the non-infested regions.

The aim of the PhD project is to isolate entomopathogenic fungi that are effective against grapevine phylloxera.

Supervisors:

Dr Sandra Savocchia

Prof Gavin Ash

Dr Bree Wilson

Associate Prof Kevin Powell

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First author publications:

Korosi GA., Mee, PT. and Powell, KS. (2011). Influence of temperature and humidity on mortality of grapevine phylloxera Daktulosphaira vitifoliae clonal lineages: a scientific validation of a disinfestations procedure for viticultural machinery. Australian Journal for Grape and Wine Research DOI 10.1111/j.1755-0238.2011.00168.x

Korosi GA., Carmody BM., and Powell KS (2011). The importance of genetic characterisation in rootstock screening for phylloxera resistance under controlled conditions. Acta Horticulturae (ISHS) 904:33-39.

Korosi GA., Wood J., Clingeleffer PR., Smith B., Walker RR., and Powell KS (2011). New hybrid rootstock resistance screening for phylloxera under laboratory conditions. Acta Horticulturae (ISHS) 904:53-58.

Korosi GA., Trethowan CJ., and Powell KS (2009). Reducing the risk of phylloxera transfer on viticultural waste and machinery. Acta Horticulturae (ISHS) 816:53-62.

Korosi GA., Trethowan CJ., and Powell KS (2007). Screening for rootstock resistance to grapevine phylloxera genotypes from Australian vineyards under controlled conditions. Acta Horticulturae (ISHS) 733:159-166

Korosi, G.A., Powell, K.S. (2005) Phylloxera workshops: Protecting the Australian viticulture industry from phylloxera. The Australian and New Zealand Grapegrower and Winemaker 500:62-63.

Co-authored publications:

Benheim D., Rochfort S., Ezernieks V., Korosi GA., Powell KS., Robertson E. and Potter ID (2011). Early detection of grape phylloxera (Daktulosphaira vitifoliae Fitch) infestation through identification of chemical biomarkers. Acta Horticulturae (ISHS) 904:17-24

Mee PT., Korosi GA. and Powell KS (2011). Phylloxera extension: national phylloxera management and identification workshops. Acta Horticulturae (ISHS) 904:85-92

Bruce RJ., Lamb DW., Mackie AM., Korosi GA. and Powell KS (2009). Using objective biophysical measurements as the basis of targeted surveillance for detection of grapevine phylloxera Daktulosphaira vitifoliae Fitch: Preliminary findings. Acta Horticulturae (ISHS) 816:71-79

Powell KS., Korosi GA. and Mackie AM (2009). Monitoring grape phylloxera populations using simple non-destructive trapping systems. Acta Horticulturae (ISHS) 816:29-33

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