Status of biocontrol on aquatic weeds in Mozambique

Silvia Langa- Department of Zoology and Entomology, Rhodes University

The release of biological control agents has reduced the problem caused by many invasive weeds throughout Africa.

In Mozambique, the first biological control agents released on the aquatic weeds were Noechetina eichhorniae and Neochetina bruchi to control Water hyacinth (Eichhornia-crassipes).

Other biological control agents used on aquatic weeds included Stenopelmus rufinasus on Azolla filiculoidees, Neohydronomus affinis on Pistia stratiotesand Cyrtobagous salviniae on Salvinia molesta, but nothing is known of their establishment and impact.

The aim of this study was to identify the biological control agents associated with Water hyacinth (Eichhornia-crassipes), Water lettuce (Pistia-stratiotes), Salvinia (Salvinia molesta) and Red water fern (Azolla-filiculoides) and to evaluate the impact of the biological control agents on the weeds in southern Mozambique.

For more information see the fact sheets below:

Water hyacinth (Eichhornia-crassipes)

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