Latest News Archive

Please select Category, Year, and then Month to display items

Prof Botma Visser takes on rust diseases threatening South Africa’s wheat

09 September 2025 | Story Martinette Brits | Photo Stephen Collett

Safeguarding one of the world’s most vital staple foods was at the heart of the inaugural lecture delivered by Prof Botma Visser, Professor in the Department of Plant Sciences at the University of the Free State (UFS), on Wednesday 3 September 2025. Prof Visser shared insights from nearly two decades of research into wheat rust – a devastating crop disease that threatens both South Africa’s harvests and global food security.

“Wheat production in South Africa is threatened by three fungal pathogens that cause rust disease on the crop. Understanding the factors that contribute to virulence on locally grown cultivars is crucial to ensure continued wheat production,” said Prof Visser.

The fight against evolving wheat rusts

For the past 17 years, Prof Visser’s research has focused on the genetic structure of rust populations and the risks they pose to food security. His work has shown that these populations are dynamic and constantly changing due to genetic mutations within existing races, as well as the introduction of new races into South Africa.

“Computer modelling showed that rust can spread over vast distances by prevailing winds. During the 20th Century, at least four Southern African stem rust races managed to move across the Indian Ocean from Southern Africa to Australia. South Africa, in turn, received multiple new races from mid-Africa across Zambia and Zimbabwe, without any means of stopping these introductions,” he explained.

To respond to this challenge, his team recently implemented MARPLE (Mobile And Real-time Plant disEase) diagnostics using fourth-generation nanopore sequencing technology. This approach allows the rapid characterisation of fungal isolates, specifically targeting genes linked to fungicide resistance and virulence.

“This work,” Prof Visser noted, “is part of an effort to safeguard global wheat production.”

His research is a collaborative effort with Prof Willem Boshoff (Department of Plant Sciences, UFS) and Dr Tarekegn Terefe (Agricultural Research Council – Small Grain, Bethlehem). Together, their work has positioned the UFS as an internationally recognised centre of excellence in wheat rust research.

About Prof Botma Visser

Prof Botma Visser obtained his BSc in Botany and Microbiology (1988), BSc Honours in Microbiology (1989), and MSc in Botany (1993) at the University of the Free State, where he also completed his PhD in Botany in 2004.

His career spans more than 18 years of research into wheat rust pathogens, combining annual surveys, race pathotyping, molecular genetics, and cutting-edge sequencing technologies. His expertise has not only advanced understanding of rust population dynamics in South Africa but also contributed to global collaborative studies on crop disease.

News Archive

Q and A with Prof Hussein Solomon on ‘Terrorism and Counter-Terrorism in Africa’

2015-05-29

Political Science lecturer, Prof Hussein Solomon, has launched his latest book, Terrorism and Counter-Terrorism in Africa: fighting insurgency from Al Shabaab, Ansar Dine and Boko Haram, on Wednesday 26 May 2015 at the UFS.

In his book, Solomon talks about the growing terrorist threat in Africa, with the likes of Al Shabaab, Ansar Dine, and Boko Haram exploiting Africa's vulnerabilities to expand their operations. Explaining both the limitations of current counter-terrorist strategies and possible future improvements, this timely study can be appreciated by scholars and practitioners alike.

Q: If you speak of Al Shabaab, Ansar Dine, and Boko Haram expanding operations, do you see possibilities for their expansion even into South Africa, or is expansion mainly focused on northern African countries?

A: All three movements are operating out of their respective countries. Al Shabaab has attacked Kenya and Uganda and tried to attack the 2010 Soccer World Cup in South Africa. So yes, there is a danger that they are here and, more importantly, newer groups like ISIS are recruiting in SA already.

Q: If the traditional military response is ineffective, what would be a better approach then?

A: What is important is that the force of arms needs to complement the force of ideas. What is being waged is an ideological battle, and, just as the West defeated Communism ideologically in the Cold War, we need to defeat radical Islamism ideologically. In addition, the military response needs to complement the governance and development responses.

Q: External players like the US have insufficient knowledge of the context, what would be the knowledge about context necessary for anyone concerned about the terror problem in Africa?

A: Allow me to give you some examples. The US trains African militaries to fight terrorist groups, but, when they return to their countries, they stage a coup and topple the civilian government. The US does not seem to understand that arming a predatory military and training them makes them more predatory and brutal, which results in civilians being recruited by terrorists, as happened in Mali. Similarly, the US sent arms to the Somali government, and members of that government sold those arms to Al Shabaab terrorists, the very people they were supposed to fight. So the Americans do not understand the criminalisation of the African state, which undermines good governance and promotes terrorism.

Back

Economic and Management Sciences

Education

Health Sciences

The Humanities

Law

Natural and Agricultural Sciences

Theology and Religion

Open Distance Learning

Business School

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept