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首页> 外文期刊>Journal of entomology >Studies on the Efficacy of Lime Peel Oil in Protecting Stored Maize against Adult Maize Weevils (Sitophilus zeamais: Motschulsky)
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Studies on the Efficacy of Lime Peel Oil in Protecting Stored Maize against Adult Maize Weevils (Sitophilus zeamais: Motschulsky)

机译：石灰皮油对玉米储藏玉米成虫的保护作用研究（Sitophilus zeamais：Motschulsky）

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Maize is one of the most important and oldest cultivated cereals. However a wide range of insect pests attack maize both in the field and storage. Lime was collected from Dora farm House, Kaduna State and was identified in the Herbarium of Departmentof Pharmacognocy, Ahmadu Bello University, Zaria. The unripe, peeled and dried lime was grounded into powder using pestle and mortar. The oil was extracted by soxhlet extraction method. Sitophilus zeamaise was obtained from naturally infested maize grains obtained from Rimi market, Kano State. The insect was identified based on morphological appearance. The Maize used for bioassay was disinfested in a deep freezer for 96 h and later air-dried in the laboratory under the ambient conditions (32±0.64°C and 68±3% RH) and the moisture content was determined. Twenty five gram of the sample was weighed into separate containers. Four concentrations of the oil (1.5, 2.0, 2.5 and 3.0 mL) were inoculated separately into these containers. These concentrations correspond to (6.0, 8.0, 10.0 and 12.0% v/w). Five insects (day old) were separately inoculated into these containers and covered with muslin cloth. Each treatment was replicated, arranged in a Completely Randomized Design (CRD). The result indicated thatthe mortality of the insect was dose dependant where the higher concentration used recorded the highest mortality (100%) after 72 h of treatment which is significantly higher (p<0.005) than untreated control (0%). Lime peel oil is effective in the protection of maize against weevil Sitophilus zeamaise.
机译：玉米是最重要和最古老的栽培谷物之一。然而，在田间和储藏中都有各种各样的害虫侵害玉米。石灰是从卡杜纳州多拉农庄收集的，并在扎里亚阿哈马杜贝洛大学药理学系植物标本室鉴定。用杵和臼将未熟，去皮和干燥的石灰磨成粉末。用索氏提取法提取油。 Sitophilus zeamaise从获自卡诺州里米市场的自然出没的玉米籽粒中获得。根据形态学外观鉴定该昆虫。将用于生物测定的玉米在深冷柜中消毒96小时，然后在实验室中于环境条件（32±0.64°C和68±3％RH）下风干，并测定水分。将25克样品称入单独的容器中。将四种浓度的油（1.5、2.0、2.5和3.0 mL）分别接种到这些容器中。这些浓度对应于（6.0、8.0、10.0和12.0％v / w）。将五只昆虫（日龄）分别接种到这些容器中，并用细棉布覆盖。重复每种处理，并安排在完全随机设计（CRD）中。结果表明，昆虫的死亡率是剂量依赖性的，在处理72小时后使用较高浓度记录的最高死亡率（100％），明显高于未处理的对照（0％）（p <0.005）。石灰皮油可有效保护玉米免受象鼻虫Sitophilus zeamaise侵害。

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