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Dr. Georgios Vidalakis
: Professor & UC Extension Specialist in Plant Pathology
: Department of Plant Pathology & Microbiology University of California, Riverside
Dr. Graham H. Barry
: XLnT Citrus
Ian S. Tolley, OAM
: Managing Director, Tolley’s Nurseries Pty. Ltd
: Tolley’s Nurseries Pty. Ltd.
: The Topara Fruit Tree Nursery
: (Plant Pathology and Genetics
: Southern African Citrus Improvement Scheme (SACIS)
After obtaining a B.Sc.Agric. (Plant Pathology and Genetics) at University of the Orange Free State, Bloemfontein, Paul Fourie obtained BSc.Hons., MSc.Agric and PhD(Agric) degrees in Plant Pathology from Stellenbosch University in South Africa. He started his professional career as a grapevine pathologist, and from 2007 as a citrus pathologist. He is currently the manager of the Southern African Citrus Improvement Scheme (SACIS) at Citrus Research International (CRI), the research and technology service provider to the southern African citrus industry. The SACIS is the primary citrus propagation material source in Southern Africa and >80% of SA’s rootstock seed and >95% of budwood is supplied from its Citrus Foundation Block outside Uitenhage in the Eastern Cape province to certified nurseries and growers. As plant pathology researcher he is associated with Stellenbosch University’s Plant Pathology department as extraordinary professor. His research focuses on fungicide application technology in citrus orchards and packhouses and Citrus Black Spot epidemiology. He has been directly involved in the student training of 7 PhD students and 22 Masters students, his scientific outputs include 69 scientific articles, 93 international and 134 national congress presentations. Paul resides on the Citrus Foundation Block farm with his wife Sonja and two daughters, Emma and Kara. Between work and school, the Fourie’s enjoy the great outdoors and the ocean as much as possible.
: Research Horticulturist
: NSW Department of Primary Industries, Dareton
Graeme Sanderson entered employment with NSW Department of Primary Industries in 1977 which has involved research nursery propagation of a range of agricultural crops.
In 1996 he began his current role of horticultural evaluation of local Australian citrus mutations and new citrus variety introductions to Australia. Graeme currently leads the ‘National evaluation of new citrus varieties’ project funded by Horticulture Innovation Australia (HIA).
His team is undertaking the independent horticultural evaluation of the majority of new citrus introductions to Australia with new varieties added to the program as they exit Australian Plant Quarantine. The aim of the work is to rapidly propagate and independently evaluate their horticultural performance under Australian growing conditions.
: Auscitrus, Dareton NSW, Australia.
Tim was born and raised a fourth generation mixed horticulture farmer in South Australia’s Riverland. After completing a Bachelor of Applied Science in Agriculture (Horticulture) he started work at the Loxton Research Station as a nurseryman/technical assistant before moving on to manage the Plant Quarantine Station nursery in Adelaide, then on to other private sector nursery and irrigated horticulture employment.
In 2004 Tim took on the position as Manager of Auscitrus, the Australian citrus seed and budwood scheme. Tim was given the task of moving the scheme from its long established location on a NSW DPI Research station, to a new facility on a greenfield site owned and operated by Auscitrus, where he is still employed as Manager.
: General Manager
: TreeSource Citrus Nursery
Roger Smith is the founder and General Manager of TreeSource Citrus Nursery in Woodlake, California.
He is a 4th generation citrus farmer that joined the citrus nursery profession in 1988 where he worked for Michaelis Nursery.
He was hired to build TreeSource in 1998 and the company has grown to be one of the largest propagators of citrus in the U.S. with propagations of 1.1 million trees annually.
TreeSource grew container and Field Grown trees until 2013 when the operation moved all trees into Insect Resistant Screenhouses and greenhouses. TreeSource has a reputation of innovation and has brought many new technologies and concepts into the citrus nursery business such as automation, citrus liners, under canopy irrigation, systems for dense plant production, growing environment optimization, and much more.
Roger has been a member of ISCN since 1991 and served as Secretary-Treasurer from 2005-2014 and in now serving President-elect.
Dr Tahir Khurshid
Dr Tahir Khurshid is a citrus plant physiologist and has leaded several projects in Australia and overseas. Dr Khurshid mainly works with rootstock evaluation program at Dareton and has 18 years’ experience in this field. Recently Dr Khurshid has released 6 rootstocks for the Australian citrus industry. Dr Khurshid has worked for 10 years in overseas projects funded by the Australian Aid program. The program included nursery development, irrigation management and crop management and to build the capacity of scientists, extension officers and growers in Pakistan.
Dr Khurshid is also an expert in citrus phenology, crop regulation, canopy management and heat unit mapping. Dr Khurshid has been involved in advising and making recommendation for the specific varieties based in regional climatic conditions using Heat/Chill Unit Mapping expertise. Dr Khurshid is a national authority on citrus flowering work and also provide national consultancy on heat unit work in a range of fruit crops. Dr Khurshid has published a range of articles in refereed and industry journals and speaks regularly in national and international conferences, field days and workshops. Dr Khurshid is a visiting professor at the Maejo University Chiang Mai, Thailand.
: Citrus Quality and Market Information Manager
: Citrus Australia
Nathan Hancock is the Citrus Quality and Market Information Manager for Citrus Australia, the Industry Representative Body for citrus in Australia. Nathan has worked in the horticulture industry for 17 years and the citrus industry for the past 10 years beginning in Western Australia where he was the industry development officer for the Department of Agriculture and Food Western Australia.
In his six years with Citrus Australia Nathan has been instrumental in the adoption of new maturity and quality standards in the national industry and has been the driver behind improved industry statistics including the citrus tree census, national plantings database, production forecast model and the online export application system.
Horacio Mederos Acosta
Horacio Mederos Acosta is a Cuban citizen born in June 1959, that holds a Bachelor degree in English language (Translation and Interpretation) granted by the Foreign Language College of Havana’s University in 1983.
After graduation, Horacio incorporated to the Citrus Experiment Station of Jagüey Grande, Matanzas province, Cuba, as Translator-Interpreter and Science Assistant which made possible his specialization in agricultural terminology, mainly that of citrus and other fruit crops.
In 1994, he was elected member of the Secretariat of Information and Communication of the Inter American Citrus Network (IACNET), a technical collaboration network from the FAO whose General coordination has been in Cuba since then.
His link to this network for 26 years, has contributed to his participation in workshops, round tables, congresses and events in general, sponsored by IACNET, both in Cuba and abroad.
In his curriculum vitae there are 12 publications, 13 postgraduate courses on Linguistics, Translation and Citrus; the participation in 85 national and international events related to citrus, either as member of the Organizing Committee and Translator-Interpreter.
His contact with the International Society of Citrus Nurserymen (ISCN) was in 2014, when the X Congress of this Society was held in Mazatlan, Mexico.
Christiano CESAR Dibbern GRAF.
: CITROGRAF Citrus Nursery , RBC- Royal Buds Cítricos Brazil
Agronomist and nurseryman, Owner of Citrograf Mudas, company with 50 years producing seedlings (citrus plants) in the state of São Paulo and Bahia. In their four nurseries, can produce more than 1.5 million plants a year.
First Protected Nursery in Brazil (1997) and the only one with ISO 9001-2015 Certification. General Director of RBC – Royal Buds Citricos, company responsible for export, import and development of new varieties.
: Production Manager
I have been working in the green industry since 1992. Graduated from Cal Poly Pomona with a degree in Horticulture with an emphasis in nursery management. While attending college, I worked at the Horticulture unit were my passion for plants begin.
I learned to grow different plants while attending there and this eventually lead to an opportunity to work in a nursery growing palm trees. After, growing palms trees for a few years, I decided to try to learn other crops that were a little more challenging such as poinsettia, tulips, anthuriums, bromeliads, and other tropical foliage plants. I have been growing citrus for about 4 years and it has been a fun and challenging crop to grow.
My other passions besides plants are running and hiking.