Tiny biocontrol insects, released by the Centre for Biological Control, are preventing flowering and suppressing growth — a long-term solution to South Africa’s most problematic…
Without biocontrol, Hartbeespoort Dam could be 70% covered in superweed
The tiny planthoppers are biological control agents and natural enemies of the world’s worst aquatic weed
About 80% of the country’s dams are so enriched with nutrients they could produce toxic algal blooms
Biological control is effective but the real solution would be to fix wastewater treatment plants in Joburg and Pretoria and stop sewage spills
Landowners and businesses in the Unesco World Heritage Site are up in arms over municipal sewage pollution
More than half of the sites showed a high health risk if water was used for irrigation
Heavy rain and pollution has led to the aquatic weed increasing its coverage to about 50% of the dam
The coverage of the invasive superweed has been reduced to 12.5% from 40% in February
About 300 000 planthoppers have been released on Hartbeespoort Dam to control the green horror
The Audi Q2 is a lot more toned down than its older siblings, but that might be all you need
E.Coli counts in tributaries feeding the Hennops River run into tens of millions, far above the permitted limit
There have long been sightings of hippos in the city’s leafy northern suburbs, says a specialist team
A proposed pipeline will bring water polluted with Gauteng’s sewage to the Waterberg in Limpopo to boost the coal industry during the climate crisis
