Reference : Fungi occurring on water hyacinth [Eichhornia crassipes (Martius) Solms-Laubach] in N...
Scientific journals : Article
Life sciences : Agriculture & agronomy
Fungi occurring on water hyacinth [Eichhornia crassipes (Martius) Solms-Laubach] in Niger River in Mali and their evaluation as mycoherbicides
[fr] Prospection des champignons vivants sur la jacinthe d'eau au Mali et leur évaluation en tant que mycoherbicides
Dagno, Karim mailto [Université de Liège - ULg > > > Doct. sc. agro. & ingé. biol.]
Journal of Aquatic Plant Management
Aquatic Plant Management Society, Inc.
North Carolina State Univ
[en] biocontrol agents, mycoherbicide ; native fungi, water hyacinth
[en] One hundred sixteen fungal isolates in seven genera were recovered from water hyacinth plants having pronounced blight symptoms collected in Mali. Isolation frequency of the genera was: Curvularia (60.32%), Fusarium (42.92%), Alternaria (11.6%), Coniothyrium (11.6%), Phoma (3.48%), Stemphylium (3.48%), and Cadophora (1.16%). On the basis of in vivo pathogenicity tests in which the diseased leaf area percentage and disease severity were visually estimated using a disease severity index, three isolates, Fusarium sp. Mln799, Cadophora sp. Mln715 and Alternaria sp. Mlb684 caused severe disease. These were later identified as Gibberella sacchari Summerell & J.F. Leslie, Cadophora malorum (Kidd & Beaumont) W. Grams, and Alternaria sp. respectively. This is the first report to highlight of C. malorum as a candidate biocontrol agent against water hyacinth. Neither C. malorum Mln715 nor Alternaria sp. Mlb684 in host specificity tests showed any pathogenicity towards 17 crop plants of economic importance in Mali.
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