Websites on Invasive Plants and their Biological Control







  • HEAR - Hawaiian Ecosystems at Risk

  • PIER - Pacific Island Ecosystems at Risk



Printed Information

BOTHA, C. 2001. Common weeds of crops and gardens in southern Africa/ Algemene onkruide in gewasse en tuine in Suidelike Afrika. Agricultural Research Council, Potchefstroom. 384 pp.
BROMILOW, C. 1995. Problem plants of South Africa. Briza Publications, Arcadia. 315 pp.

CAMPBELL, P. 2000. Wattle control. (Plant Protection Research Institute Handbook No 3). PPRI: 43 pp. HENDERSON, L. 2001. Alien weeds and invasive plants. Plant Protection Research Institute Handbook No. 12. Plant Protection Research Institute, Pretoria. 300 pp.

HENDERSON, L. 2001. Alien Weeds and Invasive Plants. Plant Protection Research Institute Handbook No. 12. Agricultural Research Council, Pretoria: 1-300.

HENDERSON, L. & CILLIERS, C.J. 2002. Invasive aquatic plants. Plant Protection Research Institute Handbook No. 16. Agricultural Research Council, Pretoria. 88 pp.

STIRTON, C.H. (Ed.). 1980. Plant Invaders. Beautiful, but dangerous. Department of Nature and Environmental Conservation of the Cape Provincial Administration, Cape Town: 1-175.

VERSVELD, D.B., LE MAITRE, D.C. & CHAPMAN, R.A., 1998. Alien Invading Plants and Water Resources in South Africa. A Preliminary Assessment. Report to the Water Research Commission. CSIR Division of Water, Environment and Forestry Technology, Stellenbosch.

XACT INFORMATION 2005. Control of unwanted plants. Xact guide no. 1. First edition. Order from publishers: phone (012) 332 1961 or 072 599 2883 or e-mail

Staff of the Weeds Research Division. Leaflet series: Weeds. In: Farming in South Africa.


Information and pictures of specific invasive plants in South Africa that are subject to the CARA regulations (Conservation of Agricultural Resources Act, 1983, Regulation 15): the Weeds and Invasive Plants Website of AGIS, National Department of Agriculture. There is a quick guide to identifications, photos, line drawings and distribution maps of most of the 198 species of declared weeds and invader plants in South Africa.


EcoPort is a database, not just a website, devoted to inter-disciplinary integration of information to manage biodiversity. The programme operates under the auspices of the University of Florida, FAO and the National Museum of Natural History of the Smithsonian Institution. It offers a framework and tool chest of procedures to enable anyone who wishes to teach and learn about biodiversity, to share their knowledge by using EcoPort as a consilience engine. EcoPort contains, amongst others, taxonomic keys to identify living organisms, information on them, pictures of them, an indication of their interaction with other living organisms, and literature references.

Personal enquiries

Identification of plant specimens:Dried and pressed plant specimens can be sent to the National Biodiversity Institute for identification. Clearly print on the package: "Dried specimens for identification". Address all correspondence to The Director, SANBI, Private Bag X101, Pretoria 0001. Enquiries:Tel: +27 (0)12 843 5035; Fax: +27 (0)12 804 3211. A handling fee will be charged.

Enquiries about weeds in farming situations: Contact the extension officers or Land Use and Soil Management officers of the National or Provincial Departments of Agriculture.


  • Botanical Society of SA, Durban Metro Environmental Management Branch, Durban Parks Department & Wildlife, and Environment Society of SA, 2000. Beautiful but dangerous. More invasive alien plants of Durban and the eastern, sub-tropical region of South Africa, with some indigenous alternatives. Colour photographs of 42 species, their legal status, and contacts for control. Available from Durban Metro Environmental Management branch, Tel: +27 (0) 31 300-2517.

  • Department of Water Affairs and Forestry, 1997. The big bad five. Photographs and descriptions of five invasive aquatic plants in South Africa; advice and contact numbers. Available from Department of Water Affairs & Forestry, Private Bag X313, Pretoria 0001.

  • Working for Water Programme, 1998-2000. Identifying our invading alien enemies. Photographs and line drawings of the most aggressive alien invaders in South Africa. Available from The Communication Project, PO Box 95823, Waterkloof, Pretoria 0145.

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