Earlier this week, researchers tackled the spread of an invasive alien in the Crocodile River - an aquatic plant known as the water spangle - by introducing a weevil species that feeds on it.

Since first being recorded at Hartbeespoort Dam in 2011, salvinia has spread across water bodies in North West and Gauteng ...

The introduced species, Cyrtobagous salviniae, is a subaquatic herbivorous insect renowned for its ability to curtail the ...

A new biotype of weevil has been released at Hartbeespoort Dam, marking its first appearance in South Africa. Speaking to leading experts in the field, Daily Maverick unpacks what exactly biological ...

Weevil species, Cyrtobagous salviniae, has been released into the Crocodile river, in Hartbeespoort, in an effort to tackle ...

The beech leaf-mining weevil isn't very big at only two millimetres in length. But Acadia University biology professor Kirk Hillier says it shouldn't be underestimated because of its size.

The beech leaf-mining weevil isn't very big at only two millimetres in length. But Acadia University biology professor Kirk Hillier says it shouldn't be underestimated because of its size. The tiny ...