A special issue of the journal Bothalia (African Biodiversity and Conservation) has been released online. The issue has 19 papers which focus on the state of biological invasions in South Africa. 

Go to the link: http://www.abcjournal.org/index.php/ABC/issue/view/113.

There are 19 papers and an editorial covering a wide range of issues. All are free to download (see below for links).

This special issue was part of eliciting contributions to the National Status Report on Biological Invasions in South Africa (due October 2017).

If you have any questions about the report itself please contact .

Papers on the state of biological invasions in South Africa 

Wilson, J.R.U., Gaertner, M., Richardson, D.M. & van Wilgen, B.W., 2017, 'Contributions to the national status report on biological invasions in South Africa', Bothalia 47(2), a2207. https://doi.org/10.4102/abc.v47i2.2207

Clusella-Trullas, S. & Garcia, R.A., 2017, 'Impacts of invasive plants on animal diversity in South Africa: A synthesis', Bothalia 47(2), a2166. https://doi.org/10.4102/abc.v47i2.2166

Faulkner, K.T., Hurley, B.P., Robertson, M.P., Rouget, M. & Wilson, J.R.U., 2017, 'The balance of trade in alien species between South Africa and the rest of Africa', Bothalia 47(2), a2157. https://doi.org/10.4102/abc.v47i2.2157

Foxcroft, L.C., van Wilgen, N.J., Baard, J. & Cole, N., 2017, 'Biological invasions in South African National Parks', Bothalia 47(2), a2158. https://doi.org/10.4102/abc.v47i2.2158

Greve, M., Mathakutha, R., Steyn, C. & Chown, S.L., 2017, 'Terrestrial invasions on sub-Antarctic Marion and Prince Edward Islands', Bothalia 47(2), a2143. https://doi.org/10.4102/abc.v47i2.2143

Henderson, L. & Wilson, J.R.U., 2017, ‘Changes in the composition and distribution of alien plants in South Africa: An update from the Southern African Plant Invaders Atlas (SAPIA)', Bothalia 47(2), a2172. https://doi.org/10.4102/abc.v47i2.2172

Hill, M.P. & Coetzee, J.A., 2017, 'The biological control of aquatic weeds in South Africa: Current status and future challenges', Bothalia 47(2), a2152. https://doi.org/10.4102/abc.v47i2.2152

Irlich, U.M., Potgieter, L., Stafford, L. & Gaertner, M., 2017, 'Recommendations for municipalities to become compliant with National legislation on biological invasions', Bothalia 47(2), a2156. https://doi.org/10.4102/abc.v47i2.2156

Kaplan, H., Wilson, J.R.U., Klein, H., Henderson, L., Zimmermann, H.G., Manyama, P. et al., 2017, 'A proposed national strategic framework for the management of Cactaceae in South Africa', Bothalia 47(2), a2149. https://doi.org/10.4102/abc.v47i2.2149

Keller, R.P. & Kumschick, S., 2017, 'Promise and challenges of risk assessment as an approach for preventing the arrival of harmful alien species', Bothalia 47(2), a2136. https://doi.org/10.4102/abc.v47i2.2136

Kraaij, T., Baard, J.A., Rikhotso, D.R., Cole, N.S. & van Wilgen, B.W., 2017, 'Assessing the efficiency of invasive alien plant management in a large fynbos protected area', Bothalia 47(2), a2105. https://doi.org/10.4102/abc.v47i2.2105

Marr, S.M., Ellender, B.R., Woodford, D.J., Alexander, M.E., Wasserman, R.J., Ivey, P. et al., 2017, 'Evaluating invasion risk for freshwater fishes in South Africa', Bothalia 47(2), a2177. https://doi.org/10.4102/abc.v47i2.2177

Measey, J., Davies, S., Vimercati, G., Rebelo, A., Schmidt, W. & Turner, A., 2017, 'Invasive amphibians in southern Africa: A review of invasion pathways', Bothalia 47(2), a2117. https://doi.org/10.4102/abc.v47i2.2117

Picker, M.D. & Griffiths, C.L., 2017, 'Alien animals in South Africa - Composition, introduction history, origins and distribution patterns', Bothalia 47(2), a2147. https://doi.org/10.4102/abc.v47i2.2147

Scholes, R.J., Schreiner, G. & Snyman-Van der Walt, L., 2017, 'Scientific assessments: Matching the process to the problem', Bothalia 47(2), a2144. https://doi.org/10.4102/abc.v47i2.2144

Visser, V., Wilson, J.R.U., Canavan, K., Canavan, S., Fish, L., Le Maitre, D.C. et al., 2017, 'Grasses as invasive plants in South Africa revisited: Patterns, pathways and management', Bothalia 47(2), a2169. https://doi.org/10.4102/abc.v47i2.2169

Wood, A.R., 2017, 'Fungi and invasions in South Africa', Bothalia 47(2), a2124. https://doi.org/10.4102/abc.v47i2.2124

Woodford, D.J., Ivey, P., Jordaan, M.S., Kimberg, P.K., Zengeya, T. & Weyl, O.L.F., 2017, 'Optimising invasive fish management in the context of invasive species legislation in South Africa', Bothalia 47(2), a2138. https://doi.org/10.4102/abc.v47i2.2138

Zachariades, C., Paterson, I.D., Strathie, L.W., Hill, M.P. & van Wilgen, B.W, 2017, 'Assessing the status of biological control as a management tool for suppression of invasive alien plants in South Africa', Bothalia 47(2), a2142. https://doi.org/10.4102/abc.v47i2.2142

Zengeya, T., Ivey, P., Woodford, D.J., Weyl, O., Novoa, A., Shackleton, R. et al., 2017, 'Managing conflict-generating invasive species in South Africa: Challenges and trade-offs', Bothalia 47(2), a2160. https://doi.org/10.4102/abc.v47i2.2160

Published in News updates

Invasive species training will take place in four centres around South Africa this autumn - Cape Town (April 2017), Durban (May 2017), Johannesburg (June 2017) and Pretoria (July 2017).

If you are interested in becoming an invasive species consultant, are a landowner, landscaper or horticulturist - this training is for you. 

Dates and locations: 

              Cape Town:  4, 5, 6 & 7 April 2017 

              Durban:  9, 10, 11 & 12 May 2017

              George:   23, 24, 25 & 25 May 2017

              Johannesburg:  6, 7, 8 & 9 June 2017

              Pretoria:  18, 19, 20 & 21 July 2017

Four modules are offered:

Module 1: Identification & Legislation (Day 1):   Learn to identify invasive species, categories and understand the legislation.

Module 2: Directives & Control Plans (Day 2):    Understanding declarations, permits, pre-directives, directives and control plans.

Module 3: Theory: Herbicides & Control Methods (Day 3):   Introduction to herbicides and how to use them.

Module 4: Practical: Spraying Herbicides (Day 4):    A practical learning experience in the field with industry experts.

When you complete Module 3 & Module 4 you will receive an official Herbicide Operator’s Certificate. Module 1 and 3 were offered last year.

The training is targeted at horticulturists, landscapers, landscape architects, conservationists, invasive species professionals, biocontrol officers, municipal parks department officials, botanists, zoologists and passionate gardeners with a superb knowledge and interest in flora and fauna.    

Choose the modules that you need to attend.

                               To download Booking form for INDIVIDUALS - Click on the link below 

                              To download Booking form for GROUPS - Click on the link below


Join the network of invasive species consultants

By attending the training you can become a SAGIC invasive species consultant, head up an invasive species removal team or embark on a journey to learn how to compile control plans for municipalities, large landowners and residential estates.

All trained professionals will be listed in a SAGIC database of invasive species consultants (www.sagic.co.za & www.invasives.org.za) and will receive a certificate to indicate that they have attended the workshops.

Book now!

SAGIC invasive species and herbicide training is an entirely self-funding project.

Booking:  Booking is essential.

     * Email your booking form to Hazel at

     * We will then send you an invoice for payment prior to training.

     * The name on the booking form is the name that will appear on your certificate.

Entry to training: No one will be admitted to the training without payment or prior arrangement.

Cost per module: R 912 (Including VAT)

Times: 09h00 – 16h00 (Module 1, 2 & 3)

            09h00 – 14h00 (Module 4)

For further information: Contact Hazel or Kay at

or Tel: 011-723-9000


Did you know?

•   DUTY OF CARE FOR LANDOWNERS:   Invasive species are defined as a liability under NEMBA. Any person who owns land in South Africa now has a ‘legal duty of care’ to control the invasive species on their land and anyone selling land, must inform the buyer of their land, of any invasive species on the property.

•   CONTROL PLANS:   That under the NEMBA AIS Regulations... all organs of state - which includes municipalities, metros, parastatals (Eskom, Transnet, SANRAL), protected areas (SANParks, all Nature Reserves), military bases, ministry’s, provinces and all state educational facilities - are required to submit control plans, which outline how they will deal with the invasive species on land under their control, to the Biosecurity Unit, Department of Environmental Affairs.

  SELLING PROPERTY?     Applications can now also be made to have a directive sent to any landowner who is not controlling listed invasive species on their property. Under these circumstances, large landowners will need the assistance of environment-trained professionals to identify species, develop and submit control plans to the government - to avoid prosecution. 

Published in News updates