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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

But do you forgive yourself, Eugene de Kock? asks Candice Mama
2015-03-16

From the left are: Prof Pumla Gobodo-Madikizela, Candice Mama and Prof André Keet, Director of the UFS Institute for Reconciliation and Social Justice.
Photo: O'Ryan Heideman

 

Candice Mama: Audio

Candice Mama and her family met with her father’s assassin. Eugene de Kock. Prime Evil. Commander of the apartheid government’s covert Vlakplaas police unit. And what followed from this meeting was one of our country’s most poignant gestures of reconciliation. One by one, each family member expressed their forgiveness of De Kock, and soon afterwards, he was granted parole.

Candice recently visited the Bloemfontein Campus to talk about ‘An Unexpected Encounter with Eugene de Kock: A Journey of Transformation’. The event was a collaborative effort between the Institute for Reconciliation and Social Justice and Trauma, Forgiveness, and Reconciliation Studies.

“What makes it possible to cross the boundary from loss and pain to bond with the person who hurt you?” Prof Pumla Gobodo-Madikizela, asked Candice. “I had to educate myself about the when, where, and how, to get a context for Eugene de Kock,” she answered. With the encouragement of her mother, Candice became an avid reader from an early age. She devoured information, so that she could build a picture of this man within a specific historical and political context. What also contributed to this moment of reconciliation for her was De Kock humbling himself and taking full responsibility for his actions.

This meeting was not without inner conflict for Candice, though. “Why am I crying for hím?” she asked herself as she listened to him speak. “Why am I laughing?” she chastised herself as De Kock preened shyly for a group photograph with the family. “Is there something wrong with me to connect with him?” She questioned her values and beliefs. But instead of a monster, Candice saw the true essence of a repentant human being.

But how do you know he didn’t fake it, many people asked. Because it was “one of the most sincere and honest encounters I’ve experienced,” she said. During their meeting, Candice saw a man “crushed by the world”. Everything he believed as a young man, he realised, was a lie.

“Do you forgive yourself?” Candice asked the one question De Kock feared most. And in that moment, he was humanised for her. “When you’ve done the things I’ve done,” De Kock replied, “how do you forgive yourself?”
It remains an open question. But this act of forgiveness gives an entire country hope.

 

For more information or enquiries contact news@ufs.ac.za.

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