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    Mortalities induced by entomopathogenic fungus

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    Date
    2011-05
    Author
    Hedimbi, Marius
    Kaaya, GP
    Chinsembu, Kazhila C
    Type
    Article
    Language
    en
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    Abstract
    The objective of this study was to compare the infectivity of Metarhizium anisopliae at a concentration of 1 × 108 conidia/ml to developmental stages of Amblyomma variegatum, Rhipicephalus appendiculatus and Rhipicephalus evertsi evertsi in oil and water formulations. The fungus, M. anisopliae, induced 50-100% mortalities in all developmental stages of the tick species tested. R. e. evertsi was more susceptible to M. anisopliae than the other two tick species. However, there was no clear difference in mortality between fed and unfed instars of different tick species. Furthermore, engorged adults were more susceptible than unfed adult ticks. Oil formulated conidia induced significantly higher mortalities (P<0.05) than water formulated conidia. The results indicate that the type of conidia formulation is critical to the performance of fungi as biological control agents for ticks.
    URI
    http://interesjournal.org/IRJM/Pdf/2011/May/Hedimbi%20et%20al.pdf
    http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/35681
    Citation
    International Research Journal of Microbiology Vol. 2(4) pp. 141-145, May 2011
    Publisher
    University of Nairobi.
     
    School of Biological Sciences
     
    Subject
    Amblyomma variegatum
    Formulation
    Rhipicephalus appendiculatus
    Rhipicephalus evertsi
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    • Faculty of Science & Technology (FST) [4253]

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