Effect of Annona formulations on non-target invertebrates and on physicochemical water parameters at semi-field condition

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dc.contributor.authorHassanali, Ahmed
dc.contributor.authorInnocent, E.
dc.contributor.authorKisanga, A.C.
dc.contributor.authorGamba, N.
dc.contributor.authorKisinza, W.N.
dc.date.accessioned2014-11-25T07:32:07Z
dc.date.available2014-11-25T07:32:07Z
dc.date.issued2014
dc.description.abstractPlant extracts from the genus Annona exhibit insecticidal properties and thus, may offer an alternative to synthetic insecticides. In the present study larvicidal efficacy of formulations of Annona squamosa and A. montana were evaluated against Anopheline and Culicine larvae in the laboratory and semi-field conditions. In the laboratory there was no significant difference (t=0.5313, p>0.05) in the effectiveness of the A. squamosa formulation at 50 µg/ml and above between An. gambiae and Culex quinquefasciatus by day 4. Significant difference (t= 2.649, p<0.05) was observed for A. montana formulation at higher concentration than 50 µg/ml since An. gambiae was more susceptible than Cx. quinquefasciatus. In semi-field condition the efficacy of the two formulations against Anopheline was not quite significant (t= 2.504, p>0.05). The activity of A. montana leaf powder against Culicines was significantly lower compared to A. squamosal (t=3.827, P<0.05). The variation in water parameters had no significant effect on the efficacy of the formulations. The formulations did not affect the survival of the 9 invertebrate groups tested during the period of study except for the Order Ephemeroptera (Mayflies) whose mortalities was more than 85%. The formulations have proven to offer an alternative to synthetic insecticides.en_US
dc.description.sponsorshipAuthors are grateful to the British Council for funding this study through Development Partnership in Higher Education (DelPHE) program. The Institute of Traditional Medicine-Muhimbili University of Health and Allied Sciences and The Ubwari Medical Research Centre in Muheza, Tanga are acknowledged for providing necessary equipments and facilities for the researchen_US
dc.identifier.citationJournal of Entomology and Zoology Studies, 2014; 2 (3): 214-219en_US
dc.identifier.issn2349-6800
dc.identifier.other2320-7078
dc.identifier.urihttp://www.entomoljournal.com/vol2Issue3/pdf/19.1.pdf
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/11729
dc.language.isoenen_US
dc.publisherAkiNik Publicationsen_US
dc.subjectAnnona squamosaen_US
dc.subjectAnnona montanaen_US
dc.subjectlarvicidal formulationsen_US
dc.subjectenvironmental parametersen_US
dc.subjectnontarget invertebratesen_US
dc.titleEffect of Annona formulations on non-target invertebrates and on physicochemical water parameters at semi-field conditionen_US
dc.typeArticleen_US
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