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dc.contributor.authorBayissa, Wakuma
dc.contributor.authorEkesi, Sunday
dc.contributor.authorMohamed, Samira A
dc.contributor.authorKaaya, Godwin P
dc.contributor.authorWagacha, John M
dc.contributor.authorHanna, Rachid
dc.contributor.authorManiania, Nguya K
dc.date.accessioned2016-06-06T16:03:08Z
dc.date.available2016-06-06T16:03:08Z
dc.date.issued2016
dc.identifier.citationBiocontrol Science and Technology Volume 26, Issue 2, 2016en_US
dc.identifier.urihttp://www.tandfonline.com/doi/abs/10.1080/09583157.2015.1099148
dc.identifier.urihttp://hdl.handle.net/11295/96043
dc.description.abstractEntomopathogenic fungi are among biocontrol agents being considered for the control of aphids on a variety of crops. Predatory coccinellids, although generalist, are also among important natural enemies that must be conserved for aphid management. Laboratory studies were carried out to investigate the interaction between three vegetable-infesting aphids, Metarhizium anisopliae isolate ICIPE 62 and the coccinellid predator Cheilomenes lunata. At a concentration of 1 × 108 conidial ml–1, the fungus was found to cause mortality of 7.5% to C. lunata, compared to 2.5% mortality in the control at 10 days post-treatment. Female adult C. lunata to which fungus-infected aphids were offered as prey never accepted them as food source in non-choice bioassays. However, live and dead non-infected aphids were fed upon. In choice bioassay, a total of 1–3 out of 24 infected non-sporulating aphids per species (average of 0.1–0.4 aphids per arena) were consumed by 48 h-starved C. lunata within a period of 60 min, but avoided sporulating cadavers. Foraging adult C. lunata enhanced the spread of conidia of M. anisopliae from infected cadavers to fourth instars Aphis gossypii feeding on okra (0.8–15.0% mortality), Brevicoryne brassicae (3.3–15.0% mortality) and Lipaphis pseudobrassicae (0.8–14.2% mortality) on kale plants. Results of this study demonstrate compatibility between M. anisopliae and C. lunata, and could provide a sustainable strategy for effective management of aphids on crucifers and okra cropping systems.en_US
dc.language.isoenen_US
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/*
dc.subjectEntomopathogenic fungusen_US
dc.subjectCoccinelliden_US
dc.subjectAphidsen_US
dc.subjectStarvationen_US
dc.subjectSpreaden_US
dc.titleInteractions among vegetable-infesting aphids, the fungal pathogen Metarhizium anisopliae (Ascomycota: Hypocreales) and the predatory coccinellid Cheilomenes lunata (Coleoptera: Coccinellidae)en_US
dc.typeArticleen_US


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