Evaluation of Some Botanical Extracts Against Major Insect Pests (Leafminer, Armored scale and Woolly Whitefly) of Citrus Plants in Central Zone of Tigray, North Ethiopia

IF 0.3 Q4 MULTIDISCIPLINARY SCIENCES Momona Ethiopian Journal of Science Pub Date : 2020-07-07 DOI:10.4314/mejs.v11i2.6
F. Ibrahim, Tsehaye Hadush, G. Abraha, A. Alemu
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引用次数: 1

Abstract

Citrus fruit production is suffering from various yield-limiting factors particularly the sucking pests viz, citrus leafminer Phyllocnistis citrella , woolly whitefly, Aleurothrixus floccosus and scale insects especially armored scales Aonidiella auriantii . The present paper tries to identify the effective botanical insecticides against these insect pests on citrus orange. An experiment was conducted in the established citrus orange farm in Kolla Temben at two farmer’s fields, Adiha and Agibe during the off-season of 2018 under irrigation growing condition in a randomized complete block design with six treatments and replicated thrice. The findings in both experimental sites showed that the neem seed extract had a significantly (P=0.001) lower leafminer infestation levels compared to the untreated control which is on par to the insecticide treatment of dimethoate. On the other hand, in both areas, whitefly mortality of more than 81% on average was recorded from neem seed extract followed by Tree tobacco (70%) (P=0.001). For scale insects however, in both experimental sites, the highest mean percent mortality was recorded from the insecticide dimethoate 40% EC (86.9%, 87.2 & 86.0%on average) followed by neem seed and tree tobacco extracts,70.1 and 65.4% respectively. The botanicals particularly the neem seed extracts followed by tree tobacco are as effective as the chemical insecticide, dimethoate 40% EC, even superior in some cases, in controlling the target pests. Therefore, these botanicals could be used as an IPM component for against the target pests.
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埃塞俄比亚北部提格雷中部地区几种植物提取物对柑橘类植物主要害虫(叶螨、甲鳞虫和白蝇)的防治效果评价
柑桔生产受到各种产量限制因素的影响,特别是吸吮性害虫柑桔叶蝉、绵粉虱、絮状粉虱和蚧虫,尤其是甲鳞螟。本文试图寻找有效的植物性杀虫剂来防治柑桔害虫。本试验于2018年休季在Kolla Temben的两个农户田Adiha和Agibe进行,采用随机完全区组设计,6个处理,重复3次,在灌溉生长条件下进行。两个试验点的研究结果表明,与未经处理的对照相比,印楝籽提取物的叶螨侵染水平显著(P=0.001)降低,与杀虫剂处理的乐果相当。另一方面,在这两个地区,印楝籽提取物的白蝇平均死亡率均超过81%,其次是烟叶(70%)(P=0.001)。然而,在两个试验点,杀虫剂乐果40% EC的平均死亡率最高,分别为86.9%、87.2和86.0%,其次是印楝籽和树烟提取物,分别为70.1%和65.4%。在控制目标害虫方面,植物药,特别是印度楝籽提取物,然后是树烟草,与化学杀虫剂,乐果40% EC一样有效,在某些情况下甚至更好。因此,这些植物制剂可作为防治目标害虫的IPM成分。
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来源期刊
Momona Ethiopian Journal of Science
Momona Ethiopian Journal of Science MULTIDISCIPLINARY SCIENCES-
自引率
0.00%
发文量
13
审稿时长
12 weeks
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