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Julie Coetzee

Powerful insect army reduces water hyacinth on Hartbeespoort Dam to 2.5%
The Green Guardian
/ 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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Insect army winning fight against invasive water hyacinth
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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Insect army tackles Hartbeespoort Dam’s water hyacinths
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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South African rowing in peril as Roodeplaat dam gets choked by plant colonies
The Green Guardian
/ 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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