By Luis A. Navarro, George Phiri
Freshwater infestation via the water hyacinth weed has reached predicament proportions in lots of components of Africa and the center East. collected environmental, financial and social damages so far are envisioned within the billions of greenbacks. so much critically affected are riparian groups and people those who rely on the environmental prone or creation from affected water our bodies. Years of analysis have produced major new findings and advances in water hyacinth keep watch over and usage. besides the fact that, it's all too obvious that this information isn't being competently utilized to regulate the weed. Early in 1996, and in accordance with disparate requests for water hyacinth study aid from throughout Africa and the center East, IDRC introduced an initiative to evaluate the level of the matter. most significantly, the initiative was once to enquire the obvious lethargy of governments and affected groups to recognize, react to, and deal with coming near near water hyacinth infestations. This ebook summarizes the findings and proposals of the initiative. it is going to be of curiosity to decision-makers, coverage makers, improvement pros, researchers and teachers.
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Extra resources for Water Hyacinth in Africa: A Survey of Problems and Solutions
Sample text
The Plant Protection Department, the National Council for Research, and the University of Khartoum carried out a project using biological control. The United Kingdom Overseas Development Administration (now DFiD) partially financed this project through the Commonwealth Institute of Biological Control (later known as IIBC and now as CABI Bioscience). Two species of Neochetina weevils were released and established, together with the moth Sameodes albiguttalis (Warren), in 1978-79. Over a long time, the vigour and productivity of the water hyacinth were reduced to levels at which the weed was no longer a navigation constraint for boats and barges.
Participants in this workshop have been challenged to think of a mechanism for communicating information — like an information clearinghouse — that would facilitate interaction among key players and countries facing common problems with water hyacinth. Such an initiative could also be used for facilitating communication on ongoing efforts and results of research in various countries, as well as for supporting other mechanisms, such as newsletters and workshops. In addressing this challenge, participants should consider the following questions: • Would the establishment of a coordinating and clearinghouse mechanism be a useful first step in improving the interaction and effective decision-making of the key players?
KEY LESSONS FROM A CASE STUDY IN SOUTH AFRICA — A case study in South Africa investigated the integrated control of water hyacinth in the Enseleni-Mposa rivers, which flow through the Enseleni village and a nature reserve. The communities and the National Parks Board were involved in the program. The program mainly used biological control and physical means (floating booms); limited chemical control was also used. The program stratified the river systems into five management units and determined the choice of method based on levels of infestation and knowledge of the weed's principal nursery sites.