CRI Staff Directory for Admin Updating

Displaying 1 - 36 of 36

Tarl Berry

Researcher : Cold Chain

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Research: Citriculture

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8 years of postharvest/biosystems engineering experience. 3 years with CRI. +12 peer reviewed article/book publications.

Hannes Bester

National Extension Manager

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Extension

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Total of 32 years of experience in the citrus industry : 8 years on the marketing/business side and the rest in horticultural research and in extension across comprehensive pre- and postharvest fields.

Rachelle Bester

Researcher : Biotechnology

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Research: Disease Management

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Experienced in the development of biotechnological tools and the utilisation of bioinformatic data analyses of HTS data to study diseases in woody perennials. 10 years’ experience in the development of molecular detection and quantitation assays for disease detection and characterisation.

Elma Carstens

Phytosanitary and Biosecurity Specialist

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Biosecurity

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Elma Carstens is the Phytosanitary/Biosecurity Specialist at Citrus Research International. Elma has experience in the fields of plant health, plant biosecurity, agricultural pests and diseases, market access, international agreements (IPPC, WTO-SPS) and phytosanitary/biosecurity risk analysis.

André Combrink

Area Extension Manager

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Extension

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Andrè obtained his BSc (Botany and Soil Science) from North-West University (1992 to 1994). He worked for the ARC-ITSC as a researcher in Cultivar Development from 1995 to 2000. In Dec 2000 he joined SRCC's Agronomy department and became Chief Agronomist in 2017. He then joined CRI in Sept 2021.

Glynnis Cook

Researcher & Programme Coordinator for Graft Transmissible Diseases

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Research: Disease Management

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Responsible to ensure industry research requirements are met pertaining to graft-transmissible agents of citrus and additionally co-ordinate functions of the Citrus Improvement Scheme that relate to graft-transmissible diseases including pathogen elimination and testing of propagation material to

Paul Cronje

Portfolio Manager : Citriculture

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Research: Citriculture

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He has been a researcher at Citrus Research International since 2003

Wilma du Plooy

Postharvest Research and Programme Coordinator

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Research: Disease Management

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I studied at University of Pretoria, having completed pre- and post graduate studies here. My background is in academia, the private sector involved in postharvest treatments, and research towards postharvest disease control.

Paul Fourie

Manager : Biosecurity & CIS

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Biosecurity

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22 years of plant pathology experience; 14 years specialising in citrus pathology. 9 years’ experience as manager of the CIS.

Coenraad Fraenkel

Area Extension Manager - Western and Northern Cape

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Extension

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Coenraad is a soil scientist/horticulturist focussed on the production of citrus.
He has consulted in most of the citrus production regions in South Africa on soil aspects, plant nutrition, irrigation,
plant manipulation strategies as well as the use of agricultural technology before joining CRI

Tim Grout

Manager : Research & Technical

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Research: IPM

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42 years citrus entomology experience. 23 years as MRT. 46 refereed publications and book chapters.

Vaughan Hattingh

Chief Executive Officer

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Executive

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31 years of citrus research and technical experience (31 years with CRI). 30 years of specialist market access technical experience. International reputation.

Natasha Jackson

Postharvest Extension Officer

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Extension

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Technical assistance for an exporting company in the Marble hall / Groblersdal region for almost 9 seasons. Pursuing her studies again and moving down to the Eastern Cape, Natasha focus on citrus postharvest and the needs of packhouses.

Johan Joubert

Programme Coordinator : Cultivar & Rootstock Evaluation

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Research: Citriculture

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24 years citrus experience in soil science, entomology, post-harvest research, cultivar and rootstock development/evaluation. Cultivar specialist with over 18 years’ experience.

Wayne Kirkman

Biosecurity Operations Coordinator

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Biosecurity

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17 years citrus entomology research experience, focusing mostly on phytosanitary pests. 3 years Biosecurity experience.

Jan Landman

Postharvest Extension Officer

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Extension

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an joined the Extension team within CRI in 2021. He has over 25 years experience in general maintenance and technical side of packhouses, knowledge of various wax applications, identification of pest and diseases on citrus.

Aruna Manrakhan

Research Entomologist & Fruit fly Programme Co-ordinator

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Research: IPM

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Dr Aruna Manrakhan is a research entomologist and co-ordinates the fruit fly research programme at Citrus Research International since 2008. The focus of her research is on ecology and management of fruit fly pests. Peer-reviewed publications (Last 5 years)

Hano Maree

Programme Coordinator : HLB Research Programme and Biotechnology researcher

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Research: Disease Management

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Hano Maree is a Biotechnology researcher and serves as the Programme Coordinator for the HLB Research Programme. He is also an Extraordinary Professor at Stellenbosch University in the Department of Genetics.

Tammy Marsberg

Researcher : IPM

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Research: IPM

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2 years post-doctoral fellowship at CRI and one year contract worker at CRI (3 years experience in citrus with CRI). Field and lab experience (genetic identification and biological assays).

Evans Mauda

Research Entomologist

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Research: IPM

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Evans Vusani Mauda is a Research Entomologist at Citrus Research International, South Africa. His current research work focuses on Integrated Pest Management in citrus. Evans current research also tackle challenges on psylloids, and other citrus pests and natural enemies in citrus IPM.

Jacolene Meyer

Manager : CFB

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CIS

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Jacolene joined the CRI team in 2017 at the Citrus Foundation block as foundation block manager where she is responsible for managing the worker team to produce horticultural superior, true to type, disease free budwood and rootstock seed to the citrus industry.

Wayne Mommsen

Area Extension Manager: Northern Region

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Extension

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4 years Citrus Extension Management. 2 years Technical Laboratory experience in the Pharmaceutical industry. 14 years Integrated pest management experience in Subtropical fruit production. 4 Years Agricultural Business Management. 5 years Entomology experience.

Sean Moore

Portfolio Manager : IPM

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Research: IPM

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Sean Moore obtained a Masters degree in Entomology from Rhodes University in 1993 and a PhD in biotechnology from the same university in 2002. He is currently Portfolio Manager for Integrated Pest Management with Citrus Research International

Providence Moyo

Senior Researcher : Fruit & Foliar Diseases Incl CBS

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Research: Disease Management

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Experience in grapevine pathology. Four years working on citrus fruit and foliar diseases at CRI. 13 peer reviewed publications.

Michael Nell

Nursery Advisor

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CIS

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Technically assists the CIS in supply and certification of pathogen-free and horticulturally true-to-type citrus propagation material to the Southern African citrus industry.

Jon Pinker

Process Manager

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Finance & Admin

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Jon was appointed as CRI's Process Manager in January 2015.

MC Pretorius

Area Extension Manager : Central Region

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Extension

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35 Years of citrus research and technical experience in the Southern African citrus industry Research experience include Soilborne diseases; Nematology – citrus nematode management; Phytophthora management and other soilborne pathogens fruit and foliar diseases and African citrus greening.

Pieter Raath

Manager: Pre-harvest production and quality

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Research: Citriculture

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30 years of plant nutrition research and soil science technical experience. Three refereed publications, >10 book chapters. Reputable specialist in sustainable agriculture, soil and plant analysis.

Ronel Roberts

Diagnostics Coordinator

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Research: Disease Management

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Dr Ronel Roberts has a background in Plant Virology, having conducted research on a variety of crops. She co-ordinates the Diagnostic Centre at CRI Nelspruit.

Christine Stoppel Grove

Financial Manager

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Finance & Admin

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18 years knowledge and experience in Accounting – 16 years as Financial Manager with additional management of HR and payroll. CIMA qualification in progress.

Rudolf Strydom

Postharvest Extension Officer

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Extension

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I’m an extremely passionate plant pathologist. This love of plant pathology motivated me to explore a career focused on ensuring the success and sustainability of the Southern African citrus industry by limiting and managing post-harvest citrus-related diseases. A newcomer to the citrus industry w

Bella Thulare

Bookkeeper Debtors & CRI Resource Centre Administration

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Finance & Admin

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Liezl van der Linde

Event & Operations Coordinator

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Extension

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Appointed in 2016 as CRI’s event coordinator, 20 years experience in event management and public relations.

Jacquie van der Waals

Programme Manager: Preharvest Diseases

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Research: Disease Management

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Jacquie spent many years researching the epidemiology and management of various soil- and foliar pathogens of potatoes. She is now involved in similar research on pathogens affect citrus preharvest.

Meagan van Dyk

Postharvest Researcher

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Research: Disease Management

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Meagan studied the causal organisms and inoculum sources of olive trunk diseases and tested the efficacy of pruning wound protectants on olive trees. Her master’s degree in plant Pathology was also completed at Stellenbosch University.

Jan van Niekerk

Portfolio Manager: Disease Management Research

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Research: Disease Management

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Research focus on the management of citrus soilborne pathogens and pests.