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    Infestation of crop fields by Striga species in the savanna zones of northeast Nigeria

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    S06ArtKamaraInfestationInthomDev.pdf (3.196Mb)
    Date
    2006
    Author
    Dugje, I.Y.
    Kamara, A.
    Omoigui, L.O.
    Type
    Journal Article
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    Abstract/Description
    Parasitism of crop plants by Striga species is a major constraint in the savanna zones of West Africa. Farmers ranked Striga as a leading constraint during a livelihood analysis of 30 communities in northeast Nigeria. A field survey was conducted to ascertain the extent of infestation by Striga spp. About 935 crop and fallow fields were surveyed across 30 communities in three agro-ecological zones. Four major Striga species were identified: Striga hermonthica in sorghum or maize; Striga aspera in rice; Striga densiflora in pearl millet and fallow and Striga gesnerioides in cowpea. About 68% of all fields sampled were infested, about 75% of compound fields and 60% of bush fields. The level of infestation was 60% in southern Guinea, 68% in Sudan and 74% in northern Guinea savanna. The level of infestation of cereal fields by S. hermonthica was in the order of Sudan savanna > Northern Guinea > Southern Guinea. Infestation of cowpea with S. gesnerioides was in the order of Northern Guinea savanna > Sudan savanna > Southern Guinea savanna. Across the three ecozones, about 85% of fields planted to maize and sorghum were infested with S. hermonthica and 81% of cowpea fields with S. gesenerioides. S. aspera infested 40–59% of rice fields and S. densiflora infested 27–60% of millet fields and fallow.
    http://dx.doi.org/10.1016/j.agee.2006.02.013
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3269
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.1016/j.agee.2006.02.013
    IITA Subjects
    Plant Breeding; Maize; Plant Diseases; Cowpea
    Agrovoc Terms
    Striga Hermonthica; Striga Densiflora; Striga Gesnerioides; Striga Asperasavannas; Maize; Sorghum; Cowpeas
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Collections
    • Journal and Journal Articles4835

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