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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

Launch of the Africa office of the IIDE
2006-05-25

Attending the launch of the Africa office of the IIDE were from the left Prof Sytse Strijbos (Chairperson of IIDE Europe), Rev Kiepie Jaftha (Chairperson of the IIDE in Africa’s Board of Directors and Chief Director: Community Service at the UFS) and Prof Frederick Fourie (Rector and Vice-Chancellor of the UFS).

 

Attending the launch were from the left Prof Lucius Botes (Director: Centre of Development Support at the UFS), Dr Samuel Kareithi (Head: Community Development at the Cornerstone Christian College, Cape Town), Rev Kiepie Jaftha (Chairperson of the IIDE in Africa’s Board of Directors and Chief Director: Community Service at the UFS), Prof Sytse Strijbos (Chairperson of IIDE Europe) and Dr Ezekiel Moraka (Vice-Rector:  Student Affairs at the UFS).

Africa office of IIDE launched on UFS main campus 

The Africa office of the International Institute for Development and Ethics (IIDE) was today (26 May 2006) launched on the Main Campus of the University of the Free State (UFS) in Bloemfontein.

“The IIDE specialises in the studying and research of general questions of developmental theory and practices and provides services and support in education, strategic planning, policy formulation, advocacy and capacity building of development agencies,” said Rev Kiepie Jaftha, Chairperson of the IIDE in Africa’s Board of Directors and Chief Director: Community Service at the UFS.

According to Rev Jaftha the IIDE in Africa will focus on the conceptual and normative aspects of developmental processes in Sub-Saharan Africa.  “We want to foster local and international partnerships with various relevant role-players in civil society, the private sector and public sector in the SACD region and later expand our operations to the rest of Africa,” said Rev Jaftha.

The IIDE in Africa cooperates with a similar foundation in Europe, functioning as the IIDE Europe.  This institute was founded in 2003 and its head office is situated in the Netherlands.  The UFS is a funder of the IIDE in Africa together with the Paul Foundation and private sponsors from the Netherlands.

“We have already started with various projects which are in various stages of implementation,” said Rev Jaftha.  Some of these projects include, among others, the broadening of the master’s degree in Christian Studies of Science and Society (MACSSS) which is currently housed at the Vrije Universiteit in Amsterdam to tertiary institutions in South Africa such as the UFS, the University of Stellenbosch and the Potchefstroom Campus of the Northwest University.

“Another project is an investigation into the possibility of initiating a broad development initiative in the poverty stricken Qwaqwa area.  This initiative will attempt to concentrate on issues like the training and empowerment of prospective entrepreneurs in the region, the identification of prospective entrepreneurs for the rendering of development support and the monitoring of the impact of information and communication technology on local communities during the implementation of sustainable development initiatives,” said Rev Jaftha.

“The establishment of the Africa office of the IIDE on the UFS Main Campus is an indication of one of the aims of the UFS to play a role in South Africa and Africa.  It also signifies our aim to contribute meaningfully to research and development and to establish links between the academe and practice,” said Rev Jaftha. 

 

Media release
Issued by: Lacea Loader
Media Representative
Tel:   (051) 401-2584
Cell:  083 645 2454
E-mail:  loaderl.stg@mail.uovs.ac.za
26 May 2006

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