On Farm Evaluation of Eucalyptus globulus Labill Leaf and Chenopodium ambrosioides L. Whole Plant Powder against Storage Insect Pests in Stored Maize at Sokoru District in Jimma Zone of Oromia Regional State, Ethiopia

IF 1.6 Q2 ENTOMOLOGY Psyche: A Journal of Entomology Pub Date : 2019-08-20 DOI:10.1155/2019/2306742
Lelise Tilahun Dufera, A. Tadesse, W. Gobena, C. G. Kuyu
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引用次数: 5

Abstract

Maize is the second most widely grown cereal and gaining importance as a highly nutritious crop in Ethiopia. However, it is severely destroyed by storage insect pests and needs further research to minimize losses. In line with this, research was initiated to evaluate the efficacy of two botanical plant powders (Eucalyptus globulus Labill leaf and Chenopodium ambrosioides L. whole plant) against storage insect pests of maize grains of two maize varieties (BH-661 and Limu) in polypropylene sacks storage conditions at Jimma Zone, Sokoru district. The plant powders were compared with untreated control, and completely randomized design was used in the experiment with three replications for each treatment. Germination capacity, thousand grain weights, percent of insect damage, and weight loss of the stored grains were evaluated and reported in the range of 69.67–94.33%, 318.7–339.3 g, 3.67–50%, and 0.2843–5.22%, respectively, after five months of storage for grains treated with botanicals. However, germination capacity of 10% and 65.33%, percent insect damage of 80.33% and 48%, and weight loss of 23.53% and 5.89% were observed for BH-661 and Limu varieties, respectively, after five months of storage for untreated control. The result indicated that both tested botanicals were effective in protecting the storage insect pests and maintaining the quality of the grains tested in comparison with control and Chenopodium ambrosioides L. whole plant powder is more effective. Although there was significant protective effect compared to untreated control, their effectiveness was decreased drastically after five and three months of storage for Chenopodium ambrosioides L. whole plant powder and Eucalyptus globulus Labill leaf powder, respectively. It is recommended that further research should be done to check if the increasing rate of application increases protection duration of these botanicals and the toxicity of Chenopodium ambrosioides L. should be further studied to use it as a storage insect protectant of maize grains intended for food purpose.
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在埃塞俄比亚奥罗米亚州吉玛地区Sokoru地区,蓝桉叶和藜麦全株粉对玉米贮藏害虫的田间评价
玉米是种植面积第二大的谷物,作为一种高营养作物在埃塞俄比亚越来越重要。然而,储藏害虫对其破坏严重,需要进一步研究以尽量减少损失。在Sokoru县Jimma区聚丙烯麻袋储藏条件下,研究了两种植物粉剂(蓝桉叶和藜草全株)对两个玉米品种(bh661和Limu)玉米籽粒贮藏害虫的防治效果。将植物粉与未处理对照进行比较,试验采用完全随机设计,每个处理3个重复。结果表明,经植物药处理5个月后,籽粒发芽率、千粒重、虫害率和失重率分别为69.67 ~ 94.33%、318.7 ~ 339.3 g、3.67 ~ 50%和0.2843 ~ 5.22%。而未经处理后5个月,BH-661和Limu品种的发芽率分别为10%和65.33%,虫害率分别为80.33%和48%,失重率分别为23.53%和5.89%。结果表明,与对照相比,两种植物制剂对贮藏害虫的防治和籽粒品质的保持均有较好的效果,其中全株藜麦粉效果更好。与未处理的对照相比,虽然有显著的保护效果,但贮藏5个月和3个月后,山梨全株粉和蓝桉叶粉的保护效果急剧下降。建议进一步研究增加施用量是否会增加这些植物的保护期,并进一步研究其毒性,以便将其作为食用玉米谷物的贮藏保护剂。
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来源期刊
CiteScore
1.80
自引率
0.00%
发文量
8
审稿时长
15 weeks
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