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- W2479088757 abstract "Aims: To evaluate the efficacy of aqueous and ethanolic extracts of garlic and tobacco in themanagement of the cowpea beetle (Callosobruchus maculatus) and how these affect oviposition byadult females, adult emergence and sex ratio.Study Design: The study was conducted in a randomised complete block design consisting of sixtreatments and three replications.Place and Duration of Study: The experiment was carried out at the Biocontrol Section of CropsResearch Institute, Kwadaso, Kumasi over a four month period.Methodology: Aqueous and ethanolic extracts of garlic and tobacco leaves were prepared; thesepreparations were compared with a standard chemical insecticide, Betallic and a control. Fourkilogrammes of untreated cowpea seeds were sorted to obtain whole uninfested grains. Sixhundred of the sorted seeds were placed in 1L Kilner jars. Fifty millilitres of each extract wassprayed onto the seeds in their respective jars and allowed to dry. Ten pairs of adult C. maculatuswere introduced into each jar. Similar set-ups were done with the insecticide and control seeds.Mortality was recorded every 6 hours after treatment for 24 hours. Data were also collected onoviposition, adult emergence and sex ratio.Results: Garlic-treated seeds did not record any mortality within the first 18 hours; no mortalitywas recorded in the control seeds, whereas the insecticide-treated seeds recorded 100 %mortality. Significantly fewer eggs were laid on the treated seeds than the control seeds. Sex ratioof the emerged adults varied within the period of observation. Aqueous extracts of the botanicalsperformed better in terms of insect control and oviposition inhibition than the ethanolic extracts.Conclusion: Aqueous extracts of both plants produced better results than the ethanolic extracts.Aqueous extract, being cheaper, easier and safer to prepare could be adopted by the averagesmall-scale farmer to manage C. maculatus." @default.
- W2479088757 created "2016-08-23" @default.
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- W2479088757 date "2016-01-10" @default.
- W2479088757 modified "2023-09-26" @default.
- W2479088757 title "Bioefficacy of Garlic, Allium sativum and Tobacco Nicotiana tabacum on Mortality, Ovipository Inhibition and Adult Emergence of the Cowpea Beetle Callosobruchus maculatus (Fab.) on Cowpea Vigna unguiculata (L.) (Walp.)" @default.
- W2479088757 doi "https://doi.org/10.9734/ajea/2016/26081" @default.
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