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    Survival of Neozygites cf. floridana (Zygomycetes: entomophthorales) in mummified cassava green mites and the viability of its primary conidia

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    S95ArtOduorSurvivalInthomDev.pdf (531.5Kb)
    Date
    1995
    Author
    Oduor, G.
    Yaninek, J.S.
    Geest, L. van der
    Moraes, G.J. de
    Type
    Journal Article
    Metadata
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    Abstract/Description
    The survival of Neozygites cf. floridana (Weiser and Muma) as dry hyphal bodies in mummified cassava green mites, Mononychellus tanajoa (Bondar), at 5.0% RH in the dark was affected by storage temperature. Survival of the fungus in mummies kept at 24 + 1.0°C could be demonstrated for 6-7 months. When stored at 4°C, the fungus sporulated from 90% of the mummies liberating an average of 186.9 primary conidia per mummy even after a storage period of 16 months, when the experiment was terminated. The temperature, humidity and light condition significantly affected the viability of primary conidia. The percent viability across all factors dropped from 98.4% after 0 h (beginning of the experiment) to 23.4% after a 1 h exposure to the conditions tested. Lower temperatures maintained higher viabilities with 86.3% of the conidia surviving after 18 h at 18°C, whereas almost all conidia died after 12 h at 33°C. Conidia survived less than 1 h when exposed to SDs (saturation deficit) of 2.0 mm Hg or higher at any tested temperature.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/4581
    IITA Subjects
    Livelihoods; Plant Breeding; Plant Diseases; Pests Of Plants
    Agrovoc Terms
    Mononychellus Tanajoa; Survival; Germination
    Regions
    Acp; Africa; Europe; West Africa; South America
    Countries
    Netherlands; Benin; Brazil
    Collections
    • Journal and Journal Articles4836
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