Vaal River residents say water lettuce is ‘national crisis’
/ 14 February 2024

Vaal River residents say water lettuce is ‘national crisis’

If allowed to pass the Vaal River Barrage, the plant has access to a journey of about 1 000km of the middle and lower Vaal river, the Bloemhof Dam and then into the Orange river

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Insect army winning war against invasive superweed in South Africa’s waterways
/ 27 December 2022

Insect army winning war against invasive superweed in South Africa’s waterways

Tiny bugs – water hyacinth planthoppers – have reduced the coverage of an invasive superweed to below 5%

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Insect army winning fight against invasive water hyacinth
/ 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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Insect army tackles Hartbeespoort Dam’s water hyacinths
/ 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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South African rowing in peril as Roodeplaat dam gets choked by plant colonies
/ 20 November 2021

South African rowing in peril as Roodeplaat dam gets choked by plant colonies

Poorly treated wastewater in Tshwane is to blame for the water hyacinth and cyanobacteria colonies

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