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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

SRC visits the US as part of Global Leadership Preparation Programme
2012-06-07

The Student Representative Councils (SRC) of the University of the Free State’s (UFS) Bloemfontein and Qwaqwa Campuses will be travelling to the United States from 10-24 June 2012 on an intensive leadership development programme.

The Global Leadership Preparation Programme, initiated by the Vice-Chancellor and Rector, Prof. Jonathan Jansen, has been designed to ensure that South Africa’s next generation of leaders understand their unique place in a global context, the interconnectedness of global and local society and various possibilities for change.
 
The group of 36 students will be visiting Washington DC, Boston and New York.
 
“As a university we recognise that students who lead on campus must be prepared to also lead the country, which requires amongst others greater understanding of the impact and influence of global developments (social, economic, political) on nation states and campuses. This includes knowledge to deepen democratic participation and real representation – issues we know that often are contested in important student governance structures such as SRCs,” says Mr Rudi Buys, Dean of Student Affairs.
 
The group will be studying among others the impact, influence and limits of the United Nations in global leadership; the impact of transnational companies on economic policies of African countries; the impact of American universities on African leadership; the impact of international philanthropy on African development and the impact of American public institutions on learning among the disadvantaged: lessons for South Africa.
 
The programme complements and strengthens other leadership preparation programmes of the UFS, such as the Leadership for Change Programme and the Gateway College Programme – an intensive orientation programme for all undergraduate students. It will give students a competitive advantage in leadership over more local programmes and initiatives that seldom look beyond the campus, or even beyond the country, in preparing the next generation of leadership.
 
“We value this initiative by the university leadership to give us the opportunity to explore and spread our wings and gather as much knowledge as we can get to raise the bar in terms of student governance and leadership. The university is amongst the few in the country that sees the need to strengthen and develop its student leadership by exposing it and allowing it to understand its role in a global context. This is a chance that we take seriously and we intend to use it to the betterment of the institution,” says Bongani Ngcanga, President of the Central SRC.
 
“While we welcomed the initiative taken by the university to design this programme, the SRC questioned and debated heavily on the merits and real contribution of such a programme. Only on approval of the academic and development profile of the programme did we accept its merits and now are excited about the value thereof. This opportunity goes beyond the term of the SRC and will develop and equip us for the great positions we will hold in the future. I am looking forward to meeting influential lobbyists, profound academics and strong politicians,” says Richard Chemaly, SRC President of the Bloemfontein Campus.
 
Upon their return, the SRCs will set a new benchmark for future councils, raising the bar to that of internationally acclaimed student leadership. One of the objectives of the programme is to produce written, reflective statements about the learning that resulted from the trip and to start dialogues in order to improve student governance and governance as a whole. Workshops will also be presented for aspirant student leaders on leadership lessons learnt from an international perspective.
 
Members of the SRCs are covering part in the cost of the programme and generous contributions have also been received from outside the university.

Media Release
07 June 2012
Issued by: Lacea Loader
Director: Strategic Communication
Tel: +27(0)51 401 2584
Cell: +27(0)83 645 2454
E-mail: news@ufs.ac.za

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