Abstract
SummaryNative fungi of West Africa were evaluated as a means to control Striga hermonthica (Del.) Benth., a troublesome parasitic weed of several gramineous crops. An isolate of Fusarium oxysporum, grown on sorghum straw and incorporated into pots, successfully prevented all emergence of S. hermonthica, and resulted in a 400% increase of sorghum dry weight. The fungus inhibited germination and attachment of S. hermonthica to sorghum roots in Plexiglas root chambers. Several crop species, including sorghum, inoculated with the fungus showed neither any disease symptoms nor any reduction in biomass.
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