Bioefficacy of zingiber officinale against prostephanus truncatus horn (Coleoptera: Bostrichidae) infesting maize

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dc.contributor.authorOgbonna, C.U.
dc.contributor.authorEziah, V.Y.
dc.contributor.authorOwusu, E.O.
dc.date.accessioned2018-11-02T09:34:41Z
dc.date.available2018-11-02T09:34:41Z
dc.date.issued2014-10
dc.description.abstractMaize is an important cereal crop grown in sub-Saharan Africa however, greater part of the grains produced is destroyed in storage by Prostephanus truncatus Horn (Coleoptera: Bostrichidae). In this study, the bio -activities of Zingiber officinale rhizome (Ginger), was investigated in the laboratory against P. truncatus at different proportions (25%, 20%, 15%, 10% and 5% wt/wt) with Actellic dust insecticide as a reference insecticide. The highest proportions (25% wt/wt) of Z. officinale powder significantly reduced the survival of P. truncatus to 0% after 12 days of treatment and the LD50 of the dust was obtained as 6.72%. The oil extract of Z. officinale at different concentrations (700 µL/mL, 350 µL/mL, 175 µL/mL, 87.5 µL/mL and 44 µ L/mL) and Agricombi insecticide as the reference was equally evaluated for the following: contact toxicity on adult insect by dipping, grain residual treatment, repellency effect, effect on progeny and adult emergence in treated grains and damage assessment to grains. There was no survival (0%) recorded at 700 µL/mL both in contact and residual treatment of P. truncatus. The LD50 of the oil extract was obtained as 84.78 µL/mL. Grains treated with the different concentrations of Z. officinale oil significantly repelled in sects with the highest concentration of 700 µL/mL yielding 100% repellency. The least mean adult emergence of 0.0 was recorded for both concentrations of 700 µL/mL and 350 µL/mL in treated grains. Grain damage by P. truncatus was significantly reduced when treated with Powder and oil extract of Z. officinale compared to the untreated grains.en_US
dc.identifier.issn0974391X
dc.identifier.otherVol. 7(2):177-185
dc.identifier.urihttp://ugspace.ug.edu.gh/handle/123456789/25161
dc.language.isoenen_US
dc.publisherJournal of Biopesticidesen_US
dc.subjectProgeny developmenten_US
dc.subjectProstephanus truncatusen_US
dc.subjectRepellencyen_US
dc.subjectToxicityen_US
dc.subjectZingiber officinale(Ginger)en_US
dc.subjectBotanyen_US
dc.subjectEngineeringen_US
dc.subjectHorticultureen_US
dc.subjectBostrichidaeen_US
dc.titleBioefficacy of zingiber officinale against prostephanus truncatus horn (Coleoptera: Bostrichidae) infesting maizeen_US
dc.typeArticleen_US

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