Förbättring av växtodling i södra Tanzania genom kontroll av en ny svampparasit.

Tidsperiod: 2014-01-01 till 2016-12-31

Projektledare: Sanja Savic

Medarbetare: Sanja Savic, Donatha Tibuhwa

Finansiär: Vetenskapsrådet

Bidragstyp: Projektbidrag

Budget: 751 000 SEK

Farmers in the Southern Tanzania have associated an unidentified macro-fungus with cashew tree wilting for more than three year by now. The fungus was first noted by cashew growers in Mtwara; then in their cassava farms; later on they also found it causing destructive wilting in eucalyptus plantations. It may become epidemic within weeks, leading to complete crop loss especially during the later rains. Many families are about to abandon their cashew and cassava cultivations, which has caused an unsustainable decrease in their household income along with increases in food price. It is a serious threat to the establishment of a sustainable agroforestry in the area. Aims of this project: 1) to characterize and classify this previously unknown fungus, for which both molecular and morphological characters will be used. 2) establish its pathogenicity and suggesting mitigation measures to improve crop production and salvage the forest industry in the area. Tissue cultures in order to isolate the macro-fungus - germplasm will be used for in vitro pathogenicity test in susceptible plant cultivars. Both direct inoculation of the germplasm to damaged plant and inoculating the pathogen to the plant surface (undamaged) will be used to assess the transmission mechanism. The host range and knowledge about transmission will then provide a basis for validating intervention methods, which will be communicated to Agricultural Institutes centers for sensitization and adoption in the region.