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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

The biological control of boxing-glove cactus

The biological control of boxing-glove cactus
Hildegard Klein,
ARC-PPRI, Private Bag X134, Queenswood 0121, Pretoria. E-mail:
During October 2008, an exceptionally damaging biotype of the cochineal Dactylopius tomentosus was first released against the invasive chain-fruit cholla (Cylindropuntia fulgida var. fulgida) in the Limpopo and Northern Cape Provinces. Following its success in controlling chain-fruit cholla in especially Limpopo and Zimbabwe (which it reached through natural distribution), a trial release was made on the closely related boxing-glove cactus, Cyl. fulgida var. mamillata, near Askham, Northern Cape, during October 2011. The cochineal biotype was shown to be just as damaging to boxing-glove cactus as it is to chain-fruit cholla. Biological control has now become the preferred control method against this cactus, especially where infestations are dense. Members of EDRR have since harvested cochineal at Askham and redistributed it to several other sites. Two releases (July 2012 and March
2013) have also been made at the rural community of Heuningvlei, NC, where approximately 400 ha have been invaded by a mixture of cactus species, including boxing-glove cactus. It is still too early for results from these releases, but large additional quantities of cochineal will be needed to ensure a reduction of the invasive potential of the cactus in that area.
The biological control of boxing-glove cactus

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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