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首页> 外文期刊>International Journal of Pure and Applied Sciences and Technology >Comparative Effectiveness of the Powders of Some Underutilized Botanicals for the Control of Sitophilus Zeamais (Motschulsky) (Coleoptera: Curculionidae)
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Comparative Effectiveness of the Powders of Some Underutilized Botanicals for the Control of Sitophilus Zeamais (Motschulsky) (Coleoptera: Curculionidae)

机译：某些未充分利用的植物药粉剂对防治Sitophilus Zeamais（Motschulsky）（鞘翅目：Curculionidae）的比较效力。

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Experiments were conducted to study the effectiveness of powders of some underutilized botanicals for the control of Sitophilus zeamais. The tested plants are: Piptadeniastrum africanum, Piper guineense, Alstonia boonei, Garcinia kola, Xylopia aethiopica, Picralima nitida and Aristolochia repens. The effects of the powders were observed at different dosage rates : 0.0g (Control), 0.5g, 1.0g, 1.5g and 2.0g per 20g of maize grains which correspond to 2.5, 5.0, 7.5 and 10.0%w/w. Twenty (20) newly emerged adults of S. zeamais were introduced into the plastic containers and percentage mortality as well as adult emergence were determined. The results showed that among the plant powders tested, Piper guineense was the most effective in all durations which gave 90% at day two (2) in the treatment with 10.0%w/w. This was followed by A. repens, root bark of P. africanum and leaf of P. africanum which gave 97.50%, 80 % and 87.5% at day four (4) in the treatment with 10.0%w/w. The effect of the plant powders of G. kola, A. boonei, X. aethiopica and P. nitida were not significantly different (p?Y0.05) from the control throughout the trial period. However, there was a progressive decrease in the number of the first filial generation of S. zeamais in all the powders tested.
机译：进行了实验，以研究一些未充分利用的植物药粉对防治玉米赤霞珠的有效性。测试的植物是：非洲大pt，胡椒，阿尔萨尼亚布尼，藤黄科植物，拟南芥，拟南芥和马兜铃。在不同的剂量率下观察到粉末的效果：每20g玉米谷粒0.0g（对照），0.5g，1.0g，1.5g和2.0g，分别对应于2.5、5.0、7.5和10.0％w / w。将二十（20）个新出现的玉米赤霉菌成虫放入塑料容器中，并确定死亡率和成虫百分率。结果表明，在所测试的植物粉中，Piper guineense在所有持续时间内均是最有效的，在处理的第二天（2）时以10.0％w / w产生90％。其次是白僵菌，非洲假单胞菌的根皮和非洲假单胞菌的叶，在处理的第四天（4），它们分别以97.50％，80％和87.5％的重量/重量提供了10.％。在整个试验期间，G。kola，A。boonei，X。aethiopica和P. nitida的植物粉末的效果与对照没有显着差异（p？Y0.05​​）。然而，在所有测试的粉末中，第一代玉米丝孢子虫的数量逐渐减少。

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