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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

Survey and clearing of Cylindropuntia fulgida var. mamillata (boxing glove cactus) and Cylindropuntia pallida (thistle cholla)

Survey and clearing of Cylindropuntia fulgida var. mamillata (boxing glove cactus) and Cylindropuntia pallida (thistle cholla)
Travor Xivuri
Invasive Species Programme, South African National Biodiversity Institute, Private Bag X7, Claremont, 7735. 

Cylindropuntia fulgida var. mamillata forma monstrosa (boxing glove cactus) and Cylindropuntia pallida (thistle cholla) are native to south-western USA and northern Mexico. Invasive populations of these cacti have been found in the arid areas of the Northern, Western and Eastern Cape provinces of South Africa, with the invasions likely the result of escapes from succulent gardens. Since 2011,

738 532 ha of farmland have been surveyed to search for boxing glove cactus by visiting farms and homesteads and interviewing landowners. Populations of boxing glove cactus have been chemically controlled  using  4%  Garlon  (Triclopyr  (as  butoxy  ethyl  ester)  480  g/L)  at  thirteen  sites  in  the Northern and Eastern Cape (total of 217 ha). Cochineal insects (Dactylopius tomentosa) were released at a further four sites in the Northern Cape and are currently being monitored. Cylindropuntia pallida has been chemically controlled at four sites (384 ha) in the Eastern Cape using 2% Garlon. There is no effective biological control agent available in South Africa for C. pallida. I will be  giving  feedback  on  the  progress  to  date  of  managing  these  two  species,  including  the effectiveness of our surveillance strategies and control methods, and how our new insights into these species’ distributions and dispersal vectors will help us improve future management plans.

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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