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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

Current status of Melaleuca and Callistemon

Llewellyn Jacobs - Centre for Invasion Biology, Stellenbosch University.

Accurate invasive alien species lists are an important prerequisite for the effective management of invasive alien plants.

Presentation on an update of the status of potentially invasive Melaleuca and Callistemon species in South Africa and exploring the errors that have been perpetuated in the listing of species in these taxa.

Melaleuca parvistaminea is now clearly invasive with a distribution over 9000 ha, although another occurrence is suspected in the Tokai plantation in Table Mountain National Park but this will not hinder the proposed eradication plan.

Bottle Brush tree (Melaleuca quinquenervia) is highly invasive in other countries but no so in South Africa. However, two instances of naturalisation and six records of other plantings across the country are reason for concern.

Both species have historically had synonymy issues, prompting a closer look at identification of South Africa material.

We also suspect errors in listing of at least other two species Stiff leaved bottlebrush (Callistemon rigidus) and (Melaleuca armillaris) which calls for a careful review of records of taxa in these genera.

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Media

General News Updates

2019 National Symposium on Biological Invasio…

26-02-2019

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

22-01-2019

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

04-09-2018

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?

01-03-2018

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

28-02-2018

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

25-01-2018

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