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German wasp | Vespula germanica

German wasp

Vespula germanica

Coral bush | Ardisia crenata

Coral bush

Ardisia crenata

Purple loosestrife | Lythrum salicaria

Purple loosestrife

Lythrum salicaria

Pom pom weed | Campuloclinium macrocephalum

Pom pom weed

Campuloclinium macrocephalum

Canarybird bush | Crotalaria agatiflora

Canarybird bush

Crotalaria agatiflora

Peanut butter cassia | Senna didymobotrya

Peanut butter cassia

Senna didymobotrya

Rubber vine | Cryptostegia grandiflora

Rubber vine

Cryptostegia grandiflora

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Environmental Programmes

In order to tackle our country’s socio-economic challenges, the government adopted the Outcomes based approach to improve government performance and providing focus on service delivery. find out more

Biological control as a management tool for suppression of terrestrial invasive alien plants in South Africa

Biological control as a management tool for suppression of terrestrial invasive alien plants in South Africa
Costas Zachariades1,2, Iain D. Paterson3, Lorraine W. Strathie1, Brian W. van Wilgen4
1ARC-Plant Protection Research, Private Bag X6006, Hilton 3245, South Africa
2School of Life Sciences, University of KwaZulu-Natal, Private Bag X01, Scottsville 3209, South Africa
3Department of Zoology and Entomology, Rhodes University, PO Box 94, Grahamstown 6140, South Africa
4Centre for Invasion Biology, Department of Botany and Zoology, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa

Biological control of invasive alien plants has the ability to contribute significantly to sustained, cost-effective management of natural resources of South Africa. The status of and prospects for the biological control of terrestrial plants in South Africa is therefore integral to the National Status Report. Considerable advances in the processing of new agents for release and successes in field on a number of invasive alien plants have been achieved in South Africa in recent years. The highlights and constraints in the biological control of major terrestrial IAPs within South Africa, as well as the prospects for success, are discussed. Major IAPs include those species that are currently considered the most damaging in the country as well as those of historical importance that would be major problems if biological control had not been implemented. The role of biological control in the management of both established and emergent terrestrial IAPs (in some cases grouped according to taxonomy or growth habit) is also discussed. Candidate terrestrial IAP targets for management using biological control are prioritised. An opinion is provided on where biological control might facilitate a change in the NEMBA categorisation for some terrestrial species. The implications of implementing recommendations contained in the National Strategy on Biological Invasions in South Africa that explicitly call for improvements to the capacity for research and implementation of weed biological control, are explored. The need for broader understanding and adoption of the practice of biological control of IAPs is emphasised as essential to the realisation of the full benefits of investment of resources.

General News Updates

2019 National Symposium on Biological Invasio…


This is your invitation to South Africa's 2019 National Symposium on Biological Invasions. The convention is hosted by the Centre for Invasion Biology (CIB), University of Stellenbosch, and the Biolo... Read more

2019 Invasive Species Training


During the past five years (2014-2018), ISSA invasive species trainers have trained 4 000 in the identification of invasive species and laws pertaining to invasive species across South Africa.  ... Read more

Alien Grass Working Group


Who are we? The South African National Alien Grass Working Group was jointly initiated by the South African Biodiversity Institute (SANBI) and the Centre for Excellence in Invasion Biology (C·I·B) in... Read more

Permits for planting indigenous Cynodon?


On 16 February, 2018, South Africa's Department of Environmental Affairs issued amendments to the regulations and lists relating to the National List of Invasive Species.  Updates to the draft&n... Read more

Invasive species training 2018 dates released


Interested in invasive species?  How much do you know about NEMBA invasive species compliance for landowners and organs of state? The South African Green Industries Council (SAGIC) have released... Read more

Communications post for Africa advertised


The Nature Conservancy has advertised a brand new post:  Communications Manager, Africa Region. Knowledge of invasive species and water would be an asset in this post. See details below:    Job Titl... Read more