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Academic Research Journal of
Agricultural Science and Research |
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Academic Research Journal of Agricultural Science and Research Vol. 5(1), pp. 27-35. January, 2017. ISSN: 2360-7874 DOI: 10.14662/ARJASR2016.043 Full Length Research Integrating Neem seed and Mexican tea powder for the management of the maize weevil, Sitophilus zeamais Mostch. (Coleoptera: Curculionidae) on stored maize at Bako, western Ethiopia
Ahmed Ibrahim Yuya
Ethiopian Institute of Agricultural Research, Melkassa Agricultural Research Center, P.O. Box-436, East Shoa, Melkassa, Ethiopia
Accepted 28 December 2016
Combinations
of different rates of Neem seed and Mexican tea powder were evaluated
against the maize weevil in no choice situations. Each experiment was
laid out in a Randomized Complete Design with three replications. The
experiment was re-infested to evaluate the persistence of the treatments
90 days after application. Data were collected on percentages of adult
weevil mortality, numbers and weight of damaged and undamaged maize
kernels, number of progeny weevils emerged, percentages of grain
damaged, grain weight losses and seed germination. Analysis of variance
showed significant differences among the treatments in all parameters.
The rate of mortality in all of the treatment combinations ranged from
2-100%, while that of the untreated check ranged from 0-6% 90 dai.
Similarly, the number of progeny weevils emerged, percentages of grain
damaged and seed weight losses in all of the treatment combinations were
significantly lower than that of the untreated check 90 dai. The
mortality effects of the different treatment combinations were
equivalent to the standard check following 90 dai. Percentages of weevil
mortality in 40%+20% and 50%+10% combinations of Mexican tea and neem
seed powder were significantly (P<0.01) higher than that of the other
treatment combinations following 156 dai. The number of progeny weevils
emerged, percentages of grain damaged and seed weight losses in all of
these treatments were significantly lower than that of the untreated
check. It can also concluded that combinations of Mexican tea and neem
seed powder at 40%+20% and 50%+10%, can be used to protect maize from
the maize weevil
How to cite this article: Yuya AI (2017). Integrating Neem seed and Mexican tea powder for the management of the maize weevil, Sitophilus zeamais Mostch. (Coleoptera: Curculionidae) on stored maize at Bako, western Ethiopia. Acad. Res. J. Agri. Sci. Res. 5(1): 27-35
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