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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

Invasive Animals

Varroa mite

Varroa destructor

Varroa mites are external honeybee parasites that attack both the adults and the brood, with a distinct preference for drone brood. It was first found in South Africa in August 1997, the first report of this mite in sub-Saharan Africa. An immediate survey revealed that the mite was common and widespread in both commercial and wild honeybee populations in the Western Cape, but absent from the rest of the country.

Vermiculated sailfin catfish

Pterygoplichthys disjunctivus

The vermiculated sailfin catfish has rows of armour plating covering its body; the abdomen is almost completely covered in small plates. Colour pattern is generally dark brown with either darker spots or lighter spots (or vermiculations). The adult size can range from about 50–70cm. Environmental impacts of vermiculated sailfin catfish are not fully understood, but in locations where they are introduced and abundant, their feeding behaviours and burrowing activities can cause considerable disturbance.

White garden snail

Theba pisana

A relatively small snail with a shell diameter of 20mm. It is similar looking in shape to the common garden snail (also an invasive species from Europe), but much paler in colour with some specimens being chalky white. They often have broken brown lines along the spirals. Agricultural and garden pest – it is known to damage numerous plants as well as economically important crops.

Yabby

Cherax destructor

This crayfish can grow 10-20cm but some individuals attain a length of 30cm. Colour is variable and depends on water quality, but most take on a greyish-blue to vivid metallic blue colour. This is not an indigenous species and may have negative impacts on our wetland systems by competing against indigenous species. The burrowing activity may cause damage to dams and riverbanks.

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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