Black River: A case study of integrated control methods and collaboration between different departments

Black River: A case study of integrated control methods and collaboration between different departments
Chandre Rhoda
Invasive Species Management, Biodiversity Branch, City of Cape Town 

Three different departments are responsible for clearing the City of Cape Town’s waterways, vleis and rivers.  Aquatic weed management is not their mandate or core function.  Aquatic weed control has always been fragmented, reactive with no long-term planning and budget commitments. The historical lack of cohesive activities and knowledge management, as well as the lack of trained aquatic weed contractors in the City have resulted in poor quality of work.   Integrated control options include manual removal, mechanical control, herbicide application and the use of biological control agents. To successfully control aquatic weeds in the City of Cape Town we need to use integrated control methods collaborate between departments and pool resources so that more can be achieved.

The invasive species management within the system are discussed, in relation to historic management. Emphasise will be on the collaboration between departments and the lessons learned that could be rolled out to a variety of projects.