毛酸枣的体外生物活性评价。(Bidara)叶提取物对抗媒介蚊伊蚊和致倦库蚊

IF 0.6 Q3 AGRICULTURE, MULTIDISCIPLINARY Pertanika Journal of Tropical Agricultural Science Pub Date : 2023-02-14 DOI:10.47836/pjtas.46.1.15
Ai Wei Lim, A. Abu Bakar, Mohd Firdaus Lai, Mohamad Nurul Azmi Mohamad Taib
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引用次数: 0

摘要

研究了毛里求斯紫皮草甲醇粗提物对埃及伊蚊、伊蚊的杀虫性能。白纹伊蚊和致倦库蚊幼虫。根据世界卫生组织的指导方针,对蚊子幼虫进行了生物测定。用100、150、200、250和300 mg ml-1毛里提纳粗提物对3龄晚期和/或4龄早期的蚊子幼虫进行了测定。结果表明,埃及伊蚊对毛里提亚蚊粗提物最敏感。200,250和300mg ml-1暴露在24,48和72小时的死亡率高于50%。因此,暴露24小时内LC50最低(121.98 mg L-1),其次为Ae。白纹伊蚊(189.89 mg L-1);致倦库蚊(246.22 mg L-1)。对死亡幼虫形态效应的观察表明:受影响最大的是埃及伊蚊,其次是伊蚊。白纹伊蚊和Cx。quinquefasciatus。在100和200 mg ml-1浓度下观察到中肠破裂。相比之下,在300 mg ml-1的较高浓度下,腹部节段无法区分,头部和胸部区域严重受损。本研究提示毛缕木甲醇粗提物对伊蚊具有较强的抗虫活性。埃及伊蚊幼虫和有潜力作为种群控制的替代杀幼虫剂。然而,还需要进一步的研究来确定毛里沙蚕在实地环境中的潜在杀幼虫效果。
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In vitro Bioactivity Evaluation of Ziziphus mauritiana Lam. (Bidara) Leaves Extract against Vector Mosquitoes Aedes spp. and Culex quinquefasciatus
Ziziphus mauritiana methanol crude extract was evaluated for its insecticidal properties against Aedes aegypti, Ae. albopictus, and Culex quinquefasciatus mosquito larvae. Bioassays against larvae mosquitoes were done following World Health Organization’s guidelines. Late third and/or early fourth instar of mosquito larva were assayed for five different concentrations viz. 100, 150, 200, 250, and 300 mg ml–1 of Z. mauritiana crude extracts. From the results obtained, Aedes aegypti was the most susceptible to Z. mauritiana crude extracts. The percentage of mortality exhibited above 50% of 200, 250, and 300 mg ml–1 in 24, 48, and 72 hr exposure. Thus, it gives the lowest LC50 within 24 hr of exposure (121.98 mg L–1), followed by Ae. albopictus (189.89 mg L–1) and Cx. quinquefasciatus (246.22 mg L–1). Observation of the morphology effect of the dead larvae shows Ae. aegypti was the most affected, followed by Ae. albopictus and Cx. quinquefasciatus. A ruptured midgut was observed in 100 and 200 mg ml–1 concentrations. In contrast, in higher concentrations of 300 mg ml–1, the abdominal segments were indistinguishable, and the head and thorax regions were severely damaged. This study suggested that Z. mauritiana methanolic crude extracts were potent against Ae. aegypti larvae mosquitoes and have the potential to be used as an alternative larvicide in population control. However, further studies are required to establish the potential of Z. mauritiana larvicidal effects in the field setting.
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来源期刊
Pertanika Journal of Tropical Agricultural Science
Pertanika Journal of Tropical Agricultural Science Agricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
1.10
自引率
16.70%
发文量
64
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