Hartbeespoort Dam

/ 1 May 2024

Powerful insect army reduces water hyacinth on Hartbeespoort Dam to 2.5%

The tiny planthoppers are biological control agents and natural enemies of the world’s worst aquatic weed

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By Sheree Bega

The Green Guardian

/ 15 February 2024

Seal off polluted dams to protect public health, says water expert

About 80% of the country’s dams are so enriched with nutrients they could produce toxic algal blooms

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By Sheree Bega

The Green Guardian

/ 12 November 2023

Tiny bugs reduce water hyacinth on Hartbeespoort Dam to 5%

Biological control is effective but the real solution would be to fix wastewater treatment plants in Joburg and Pretoria and stop sewage spills

By Sheree Bega

The Green Guardian

/ 12 August 2023

Filthy rivers run through Cradle of Humankind

Landowners and businesses in the Unesco World Heritage Site are up in arms over municipal sewage pollution

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By Sheree Bega

The Green Guardian

/ 9 March 2023

Faecal pollution severely contaminates SA’s rivers, dams – report

More than half of the sites showed a high health risk if water
was used for irrigation

By Sheree Bega

The Green Guardian

/ 27 January 2023

Invasive water hyacinth explodes on Hartbeespoort Dam

Heavy rain and pollution has led to the aquatic weed increasing its coverage to about 50% of the dam

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By Sheree Bega

The Green Guardian

/ 13 April 2022

Insect army winning fight against invasive water hyacinth

The coverage of the invasive superweed has been reduced to 12.5% from 40% in February

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By Sheree Bega

The Green Guardian

/ 12 December 2021

Insect army tackles Hartbeespoort Dam’s water hyacinths

About 300 000 planthoppers have been released on Hartbeespoort Dam to control the green horror

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