Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search


Three of world’s best to talk on grapevine trunk diseases

4 November 2011

Three of world’s best to talk on grapevine trunk diseases

Three of the world’s pre-eminent experts on grapevine trunk diseases will be presenting the latest international research on effective management at a free workshop on Tuesday.

Dr Mark Sosnowski, Professor Doug Gubler and Dr Marlene Jaspers will be sharing their extensive knowledge of eutypa dieback and bot canker diseases at a New Winegrowers sponsored seminar at EIT, followed by a vineyard walk at Mission Estate Winery.

The workshop was particularly relevant for Hawke’s Bay grape growers as older vines and red varieties such as Cabernet Sauvignon were susceptible to the diseases, says Caine Thompson, chairman of Hawke’s Bay Winegrowers Focus Research group. “Being the oldest wine growing region in the country, and having a strong red emphasis, we need to be proactive in terms of any vines at risk.”

Both diseases can result in vines becoming unproductive and having to be pulled out.

“This is a great opportunity for growers to take advantage of the understanding that the speakers have of the diseases, and to learn of the technical outcomes of the research work that is being undertaken with the help of NZ Winegrowers,” says Xan Harding, deputy chairman of HBWG. “Supporting research and these seminar events is a key part of the Hawke’s Bay Winegrowers Association’s role in the regional industry.”

Dr Mark Sosnowski is a research scientist with the South Australian Research and Development Institute (SARDI). He has been responsible for research on managing eutypa dieback disease in grapevines at SARDI and has developed a trunk disease research programme, which includes post-graduate projects, commercial contract research and collaborative projects with organisations around Australia and abroad in New Zealand, the USA and Spain.

He is currently the Australasian regional representative on the International Council for Grapevine Trunk Diseases. In addition, Dr Sosnowski manages biosecurity research with national and international collaboration and co-supervises a number of post-graduate students in collaboration with the University of Adelaide.

A professor with University of California, Mr Gubler’s research interests include pathogen biology, disease epidemiology, and development of control strategies including disease risk assessment models for diseases of grapevines, and small fruit crops.

Prof Gubler’s past research includes: leaf removal for bunch rot control, documenting DMI resistance in the Erysiphe necator population, development of pathogen biology and disease epidemiology information for grapevine powdery mildew in California (CA), development of the Gubler-Thomas risk index for powdery mildew control, identifying etiology of esca in CA, development of information on grapevine canker diseases and development of control strategies for CA.

Dr Marlene Jaspers is a senior lecturer at Lincoln University who has over 30 years experience in Plant Pathology research. Her main research focus has been on the processes of disease development; the improved understanding of the interactions between pathogens, their plant hosts and their environment allows for development of control methods which disrupt the disease interaction. This knowledge and the related research into potential control methods have been used to develop sustainable control strategies.

Dr Jaspers has been the main supervisor of six PhD students who have investigated different aspects of grapevine diseases, including Botrytis rot, Cylindrocarpon black foot and Botryosphaeria dieback.

The latter two trunk diseases were investigated with the help of New Zealand Winegrowers funding. She and her students have presented some of their work at overseas conferences, at Romeo Bragato Conferences and local workshops and seminars.

The free workshop will be held from 9am – 12.30pm at EIT, Taradale, followed by lunch and a vineyard walk at 1pm at Mission Estate Winery.


© Scoop Media

Business Headlines | Sci-Tech Headlines


Auckland Transport: Successful Bridge Repair Opens Two Additional Lanes To Traffic

The opening of two additional lanes on the Auckland Harbour Bridge this morning will help relieve some motorway congestion for motorists heading home to the North Shore tonight. More>>


Statistics New Zealand: COVID-19 Sees Record 12.2 Percent Fall In New Zealand’s Economy

Gross domestic product (GDP) fell by 12.2 percent in the June 2020 quarter, the largest quarterly fall recorded since the current series began in 1987, as the COVID-19 restrictions in place through the quarter impacted economic activity, Stats NZ said ... More>>


Climate: Scientists Release ‘Blueprint’ To Save Critical Ecosystems And Stabilize The Earth’s Climate

A group of scientists and experts produced the first comprehensive global-scale analysis of terrestrial areas essential for biodiversity and climate resilience, totaling 50.4% of the Earth's land. The report was published in Science Advances ... More>>


MPI: Independent Review Launched Into Assurances For Safe Transport Of Livestock By Sea

The Ministry for Primary Industries (MPI) has launched an independent review of the assurances it receives for the safe transport of livestock by sea. MPI Director-General Ray Smith says Mike Heron QC has been appointed to lead the review, which is expected ... More>>


Computers: New Zealand PC Market Grows Nearly 40% Due To Work From Home Demand

COVID-19 had large impacts on demand for PCs as businesses prepared for lockdowns by purchasing notebooks to mobilise their workforce. In the second quarter of 2020, New Zealand's Traditional PC market experienced a 39.7% year-on-year (YoY) growth ... More>>


University Of Auckland: Whale-Watching By Satellite – Follow Their Travels Online

Scientists have successfully attached satellite tracking tags to six New Zealand southern right whales, or tohorā, and are inviting the public to follow the whales’ travels online. Part of a major research project involving the University of Auckland ... More>>

Commerce Commission: Kiwibank Admits System Failures And Agrees To Pay Customers $5.2 Million

Kiwibank has entered into a settlement agreement with the Commerce Commission after reporting that it failed to have in place robust home loan variation disclosure policies, procedures and systems. In a settlement dated 27 August 2020, Kiwibank admitted that ... More>>

Ministry of Health: Public Transport Distancing Requirements Relaxed

Physical distancing requirements on public transport have been reviewed by the Ministry of Health to determine whether they are still required at Alert Level 2 (or below). The Ministry’s assessment is that mandatory face covering and individuals tracking ... More>>


NZHIA: New Zealand Hemp Industry Set To Generate $2 Billion Per Annum And Create 20,000 Jobs

A new report says a fully enabled hemp industry could generate $2 billion in income for New Zealand by 2030, while also creating thousands of new jobs. Written by industry strategist Dr Nick Marsh, the report has prompted calls from the New Zealand Hemp ... More>>


Stats NZ: One In 14 Employed People Report High Risk Of Losing Jobs

About one in 14 workers say they expect to lose their job or business by mid-2021, Stats NZ said today. A survey of employed people in the June 2020 quarter showed 7 percent felt there was a high or almost certain chance of losing their job or business ... More>>

ASB Quarterly Economic Forecast: NZ Economy Doing Better Than Expected, But Challenges Remain

August lockdown estimated to have shaved 8% off NZ’s weekly GDP, and 0.5% off annual GDP Economy now expected to shrink 5% (year-on-year) by end of 2020 Unemployment rate now expected to peak at 7.2% The latest ASB Quarterly Economic Forecast is less ... More>>