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The ability of Fusarium oxysporum (PSM 197), a potential mycoherbicide for control of Striga hermonthica, to control different Striga species ( S. hermonthica, S. asiatica and S. gesneroides) and another parasitic weed, Alectra vogelli, was investigated under glasshouse conditions. Significant reductions in the total number of emerged plants of S. asiatica (91.3%), S. gesneroides (81.8%) and S. hermonthica (94.3%) were achieved in the presence of F. oxysporum (PSM 197). The pathogen only caused a reduction of 8.5% in A. vogelli. This high susceptibility of the three Striga species provides a possible opportunity to control these parasites simultaneously with this mycoherbicide. [ABSTRACT FROM AUTHOR]

Under glasshouse conditions, the ability of Fusarium oxysporum isolate Foxy 2, a fungal pathogen isolated from Striga hermonthica, to control S. asiatica and S. gesnerioides, was investigated on potted plants. In the experiment, the target weed of the fungus, S. hermonthica, was included as a standard. In the present study, S. asiatica was the only species that, besides S. hermonthica showed high susceptibility to Foxy 2. This susceptibility was demonstrated by almost complete prevention of emergence of the parasite. In contrast, S. gesnerioides did not show any susceptibility at all. The susceptibility of two Striga species to the fungus provides an opportunity for simultaneous control of both parasites in those regions where they are co-existing (e.g. Tanzania and Kenya). [ABSTRACT FROM AUTHOR]

Examines the use of Orobanche aegyptiaca fungi as biological agents for weeds in Nepal. Cultivation of the specie; Determination of fungi associated with the specie; Identification of strains with mycoherbicidal potential.