Cape Town's Early Detection and Rapid Response

Cape Town's Early Detection and Rapid Response Program

Emerging species
Devil's Beard (previously known as Red Valerian) Centranthus ruber

Welcome to Cape Towns Early Detection and Rapid Response (EDRR) Project

Preventing the introduction of invasive species is the first line of defence against invasions. Even the best prevention efforts will not stop all invasive species being introduced.

The second line of defence is early detection and rapid response (EDRR). EDRR efforts increase the likelihood that invasions will be addressed successfully while populations are still localised and population levels are not beyond that which can be contained and possibly eradicated. Once populations are widely established costly operations are implemented to contain and/or control such populations to mitigate negative impacts. The costs associated with EDRR efforts are less than those of long-term invasive species management programmes.

If you have feedback or questions please contact Chandre Rhoda or Phumudzo Ramabulana on 021 444 2357/2356 or email

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Project News

EDRR Target Species

There are currently 15 plant species on the Cape Peninsula Early Detection and Rapid Response (EDRR) programme’s target list for control. For information on other emerging species in Cape Town download the emerging species PDF (1.5MB).