Effective Biological Control of Salvinia molesta in the Senegal River by Means of the Weevil Cyrtobagous salviniae
| Autor: | Sara Diouf, Marianne Kettunen, Anne Tarvainen, Seppo Hellsten, Sandra Kloff, Ismael Ndao, Arnold H. Pieterse, Khady Sarr |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Conservation of Natural Resources
Population Dynamics Geography Planning and Development Biological pest control Sink (geography) Rivers Animals Environmental Chemistry Wetland biodiversity Salvinia molesta River delta geography.geographical_feature_category Ecology biology Weevil Mauritania General Medicine biology.organism_classification Senegal Cyrtobagous salviniae Coleoptera Biodegradation Environmental Geography Ferns Biological dispersal Pest Control Plants Edible |
| Zdroj: | AMBIO: A Journal of the Human Environment. 32:458-462 |
| ISSN: | 0044-7447 |
| DOI: | 10.1579/0044-7447-32.7.458 |
| Popis: | The invasion of Salvinia molesta in the Lower Senegal River Delta in Mauritania and Senegal in 1999 posed a serious threat to the socioeconomic conditions of the local people as well as to wetland biodiversity. Eventually, an effective biological control of S. molesta was obtained by means of the weevil Cyrtobagous salviniae, which was introduced in the river in Senegal and Mauritania in May 2000 and in Senegal in April 2001. In October 2001, it became apparent that the weevils were doing a magnificent job. The color of the plants was turning from green to dark-brown or black, and subsequently the plants started to sink to the bottom. Detailed monitoring of the dispersal of C. salviniae in November–December 2001 confirmed the visual observations of the outcome of biological control. In April 2002, it could be concluded that S. molesta was no longer a problem in the Senegal River. |
| Databáze: | OpenAIRE |
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