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Centre for Biological Control

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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Invasive water hyacinth explodes on Hartbeespoort Dam
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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Insect army winning war against invasive superweed in South Africa’s waterways
The Green Guardian
/ 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
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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