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New research bites back at rodent problem in townships

29 August 2025 | Story Precious Shamase

Pictured are Prof Steven Belmain, Dr Hayley Thompson, and Prof Lourens Swanepoel during their visit to South Africa to kick off a collaborative One Health research project aimed at addressing rodent-related health risks in townships – an initiative that unites local and international experts in the pursuit of safer, community-driven solutions.

A collaborative research project is underway in South African townships to combat the pervasive rodent problem and its impact on human health. Led by Prof Peter Taylor, Professor-in-Residence in the UFS Afromontane Research Unit and affiliated with the UFS Department of Zoology and Entomology, the initiative brings together experts from the UK's Natural Resources Institute (NRI), including Prof Steven Belmain and Dr Hayley Thompson, and South African institutions such as the UFS and the University of Venda.

This 'One Health' approach acknowledges the interconnectedness of human, animal, and environmental well-being. The team visited laboratory facilities at the UFS campuses in Bloemfontein and Qwaqwa, the latter being near Phuthaditjhaba township – a key research site alongside Lwamando in Limpopo.

The multidisciplinary project involves local farmers and university departments, integrating expertise in advanced techniques such as high-performance liquid chromatography (HPLC) and mass spectrometry, molecular virology and microbiology, genome sequencing, and parasitology. Social scientists, such as Dr Shingirayi Chamisa, a lecturer in the UFS Department of Industrial Psychology, are also involved to understand community perceptions and current rodent control methods, including the impact on mental health.

The research will investigate the health risks associated with rodent infestations, including food contamination with poison residues and fungal toxins, and the transmission of disease to humans and livestock through direct contact or parasites. Practical trials will evaluate methods to reduce food contamination.

Significantly, the project will explore novel and humane rodent control strategies, such as contraceptive baits, offering a safer alternative to rodenticides. Recent concerns about rodenticide-related deaths in townships have increased pressure for safer, ecological solutions.

This research holds significant promise for developing sustainable and effective solutions to mitigate the negative impact of rodent pests on the health and livelihoods of township residents. The international and local collaboration, guided by a holistic 'One Health' perspective, marks a crucial step towards addressing this challenging issue. Prof Taylor expressed his appreciation for the enthusiastic engagement of all collaborators, highlighting the potential for a truly transdisciplinary project to find meaningful and ecologically sound solutions to rodent-borne pathogens and food contamination in South African townships.

News Archive

Plant eco-physiologist finds effective solutions for crop optimisation

2016-07-24

The bio-stimulant was tested on
this citrus. This is the first time
that the product has been tested
on a crop.

In a time characterised by society facing increasing population growth, food crises, and extreme climatic conditions such as drought, it is essential for farmers to integrate science with their work practices in order to optimise crops.

Role of photosynthesis and plant sap data

By knowing how to use photosynthesis and plant sap data for determining plant health, fast and effective solutions could be established for the optimisation of crops. This technique, which could help farmers utilise every bit of usable land effectively, is the focus of Marguerite Westcott’s PhD study. She is a junior lecturer and plant eco-physiologist in die Department of Plant Sciences at the University of the Free State.

Westcott uses this technique in her studies to prove that a newly-developed bio-stimulant stimulates plants in order to metabolise water and other nutrients better, yielding increased crops as a result.

Agricultural and mining sectors benefit from research

The greatest part of these projects focuses on the agricultural sector. Westcott and a colleague, Dr Gert Marais, are researching the physiology of pecan and citrus trees in order to optimise the growth of these crops, thus minimising disease through biological methods. Field trials are being conducted in actively-producing orchards in the Hartswater and Patensie areas in conjunction with the South African Pecan Nut Producers Association (SAPPA) amongst others.

The principles that Westcott applies in her research are also used in combination with the bio-stimulant in other studies on disturbed soil, such as mine-dump material, for establishing plants in areas where they would not grow normally. This is an economical way for both the agricultural and mining sectors to improve nutrient absorption, stimulate growth, and contribute to the sustainable utilisation of the soil.

The bio-stimulant contributes to the immunity of the plants.
It was tested in these pecan nut orchards (Hartswater).

Soil rehabilitation key aspect in research projects

“One of two things is happening in my research projects. Either the soil is rehabilitated to bring about the optimal growth of a plant, or the plants are used to rehabilitate the soil,” says Westcott.

Data surveys for her PhD studies began in 2015. “This will be a long-term project in which seasonal data will be collected continuously. The first set of complete field data, together with pot trial data, will be completed after the current crop harvest,” says Westcott.

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