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18 February 2019 | Story Leonie Bolleurs | Photo HO de Waal
Ground spiny Cactus pear
Shredded, sun-dried, and coarsely ground spiny cactus pear (Opuntia ficus-indica and O. engelmannii), ready to be included in balanced diets for ruminant livestock (cattle, sheep, goats) and wild antelopes.

Prof HO de Waal, researcher in the Department of Animal, Wildlife and Grassland Sciences at the University of the Free State (UFS), has developed a standard procedure for the processing of spiny cactus pear (Opuntia spp.) into livestock fodder. This will ultimately assist in the management of massive infestations of spiny cactus pear and help to convert underutilised farmland back to natural grazing land.

In addition to applying biological control agents, mechanical control is used to harvest alien spiny cactus pear, and the large volume of material is processed as livestock feed.

 

Introduced to South Africa

 

Three hundred years ago, seafarers visiting the Cape of Good Hope introduced the well-known invading alien spiny cactus pear to South Africa. These were later transported inland and by the 1950s about one million ha of South Africa had been invaded by the alien cacti.

Some regions in the Eastern Cape have been taken over by dense, impenetrable thickets of these cacti. Invasive alien plants (IAPs) such as cacti pose a direct threat to, among others, South Africa’s water security and productive use of land.

A range of methods is used to control IAPs, including mechanical, chemical, biological, and integrated control methods.

A control programme must include the three phases of initial control to drastically reduce the existing population; follow-up control of seedlings, root suckers, and coppice growth; and maintenance control on an annual basis to sustain low alien plant numbers.

 

Processing spiny cactus pears

 

According to Prof De Waal, the harvesting and processing of the spiny cactus pear is fairly simple. Although it requires a good measure of physical strength, perseverance, and the necessary protective clothing, the cacti can be processed by harvesting the plants; shredding the cladodes through a cladode cutter; then drying them in the sun, and lastly grinding it in a hammer mill. “The long spines are degraded mechanically by grinding the sun-dried cladode strips in a hammer mill before including it in balanced livestock diets,” said Prof De Waal.

Infestations will be opened, reclaimed, rehabilitated and the natural pastures (veld) allowed to revert back to grazing for livestock.

The National Resource Management Programme (NRM)P) will be approached for official support in clearing and rehabilitating massive areas of infestation by alien spiny cactus pear in the Eastern Cape. Such financial support will be an investment in reducing the infestation by invaders and the rehabilitation and sustainable use of natural resources in South Africa.

News Archive

UFS receives several awards for communication projects
2014-11-26

Staff from the Department of Communication and Brand Management received five awards at MACE 2014. From the left are: Leonie Bolleurs (Excellence awards for the Internet Broadcast Project and the B Safe safety campaign), Lacea Loader, Director of the Department of Communication and Brand Management, Lelanie de Wet (Excellence award for the #FaceOfFacebook social media campaign and Merit award for the Redesign of the UFS website) and René-Jean van der Berg (Merit award for the No Student Hungry media campaign).
Photo: Hannes Pieterse

The Department of Communication and Brand Management at the University of the Free State (UFS) received several national and international awards for communication campaigns and projects this year.

On international level, an audit of the university’s stakeholders received the Jake Wittmer award for research in communication from the International Association of Business Communicators

(IABC), a merit award in the category communication and research management from the IABC, a 2014 IABC Africa Gold Quill award and a bronze medal from the International Business Association (IBA). Furthermore, the audit was a finalist in the Golden World awards (GWA) of the International Public Relations Association (IPRA). The Bult magazine also received a bronze medal from the IBA.

Staff from the department also walked away with five awards at this year’s Marketing, Advancement and Communication in Education (MACE) Excellence awards, which formed part of the annual MACE congress held at Sun City from 13-15 November 2014. Some 185 communication, marketing and institutional advancement practitioners from across South Africa attended the event.

Lacea Loader, Director of the Department of Communication and Brand Management, says: “The national and international recognition from our peers in higher education, as well as from the industry, is of exceptional value to us and I am delighted that the standard of our projects and campaigns could be benchmarked in this way.”

The UFS received awards from MACE for excellence in:

- Internet Broadcast Project (category: audiovisual)
- #FaceOfFacebook social media campaign (category: social media)
-  B Safe safety campaign (category: integrated campaigns)

Merit awards were presented to:

- Redesign of the UFS website (category: electronic media)
- No Student Hungry media campaign (category: media)

Mace fulfils a leadership role in the Higher Education (HE) and Further Education and Training (FET) sectors within Southern Africa by adding value to practitioners in marketing, communication and advancement through high-quality development programmes, facilitating networking partnerships and transformation, as well as promoting best practices among these professions at member institutions.

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