Biological control of water hyacinth on Lake Victoria, Kenya
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The Kenya Agricultural Research Institute (KARI) imported 12 800 curculionid weevils (Neochetina spp.) from Benin, Uganda, South Africa and Australia for biological control of water hyacinth between 1993 and1998. In 1996, KARI’s rearing and quarantine facility at the National Agricultural Research Centre, Muguga, provided initial “breeding stock” to another rearing facility at the National Fibre Research Centre, Kibos, near Lake Victoria. To date, 36 500 weevils and 42 000 weevil eggs have been produced from Kibos. About 2000 weevils were produced each month from plants grown in plastic basins, galvanized corrugated iron sheet tanks and a polypropylene rearing pool. Between January 1997 and August 1998, KARI released 36 250 Neochetina weevils at 27 sites and redistributed 7 800 weevils along the Kenyan Lake Victoria shoreline. Visual observations and a pre- and post release sampling protocol have been used to monitor the establishment, spread and impact of Neochetina weevil.....
JournalProceedings of the Ist IOBC Water Hyacinth Working Group
Conference NameIst IOBC Water Hyacinth Working Group
CitationProceedings of the Ist IOBC Water Hyacinth Working Group, p. 115-118
- Conference Papers