Browsing by Author "Oroja, N."
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Item Open Access INVITRO EFFICACY OF LIME PEELS FOR THE CONTROL OF COWPEA WEEVILS (Callosobruchus maculatus L. Walp) IN KEFFI, NIGERIA(Department of Plant Science and Biotechnology, Nasarawa State University Keffi., 2019-06-12) Abdulkarim, B.M.; Yahaya, S.A.; Oroja, N.; Sani, M.H.; Aliyu, R.H.In order to evaluate the efficacy of lime (Citrus aurantifolia) peels in the control of cowpea weevils, a study was carried out on stored infested and non-infested cowpeas seeds which were treated with 5g of powdered lime peels and 2g of dress force. The control did not include any of the two potential pesticides. The infested seeds were covered with net of 0.2mm mesh size to prevent the entry of insects and to aid ventilation, while the non-infested cowpeas were left opened for natural weevil infestation. The effects of these treatments for infested and non-infested seeds were evaluated using different doses of the treatments. Results showed that the presence of the two pesticides had significant (P < 0.05) effect on the mortality rates of weevils in all the days but was higher in powdered 5g powdered lime peels between days 17 and 19 with the values (12.33 and 12.00) which is higher than the 2g dress force of the same day with the values (8.00 and 14.00) but was lowest in the control in the same day with the values (5.33 and 6.33) respectively, this also caused a reduction in number of seeds infested and number of adults weevils eggs laid. Significant differences were observed at (P< 0.05) on the effect of the lime peels on C. maculatuscompared to the control, treatment of both infested and non-infested cowpeas. Limepeels were found to be efficacious in the management of cowpea weevils (C. maculatus) in storage which is more environmentally friendly.