Devilweed: the ‘green invasion’ that’s destroying biodiversity and livelihoods
In a new video from BBC Earth, CABI’s Dr Arne Witt tells us about the devastating impact of Chromolaena odorata, commonly known as ‘Devilweed’. As part of the BBC’s Our Green Planet initiative, the video raises awareness about the impact of invasive species on biodiversity and livelihoods.
Weed biological control: Challenges and opportunities
Michael Day and Arne Witt have just published ‘Weed biological control: Challenges and opportunities’ in the first edition of a new journal, Journal of Asian-Pacific Weed Science Society. Their paper traces the history of weed biological control and points to the many successes.
Eucalyptus – the ‘thirsty’ trees threatening to ‘drink’ South Africa dry
Eucalyptus species are widely grown and utilized throughout much of the world, Dr Arne Witt reports. They are a valuable source of timber, fuelwood, paper, nectar, etc. and as such often grown in woodlots and plantations. However, many of these introduced species have escaped cultivation and become invasive.