在实验室条件下评价储藏玉米(Zea mays L.)中植物叶片酊剂对玉米象鼻虫(Sitophilus zeamais Motsch.)的抑制作用

IF 1.5 Q2 AGRONOMY
Shetie Gatew, Abrham Chalew
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引用次数: 0

摘要

玉米象鼻虫(Sitophilus zeamais Motschulsky)是非洲一些地区普遍存在的具有重要经济意义的储粮害虫。大量的合成农药被用于农作物病虫害的治理,对环境的生物和非生物成分产生了许多负面影响。另一方面,植物源农药对环境安全,只影响目标昆虫,使用成本低,易于生物降解。本研究的目的是确定四种植物乙醇叶剂对玉米瘟病菌的防治效果:Brucea antidysenterica (J.) (Waginos), Croton macrostachyus (Hochst.)(阔叶巴豆),Nephrolepis exaltata (L.)(波士顿蕨)和Carica papaya (L.)(木瓜)。试验采用完全随机设计(CRD),采用4种不同浓度(0 mL、2.5 mL、5 mL、7.5 mL)和4种植物叶酊剂,分3个重复。随机抽取300克干净的玉米种子,用选定的四种植物药处理,装入塑料罐中,并用薄布盖上。将20只成年玉米象鼻虫分别引入消毒、处理和未处理的玉米籽粒中。采用SPSS软件25对死亡率、籽粒损害和F1后代突现率进行评估和分析。抗痢疾芽孢杆菌叶酊处理的玉米种子死亡率最高(100%),其次是木瓜叶酊(7.5 mL/300 g)处理的玉米种子(97.5%)。种子的平均失重在不同处理之间有显著差异。对照组种子平均失重率(8.96%)高于各植物叶片酊剂处理的总平均失重率(3.66%)。玉米玉米病菌F1代在玉米籽粒上的出苗率在不同处理间存在显著差异。以2.5 mL/300 g玉米籽粒处理为对照处理,F1后代出苗率最高(100%),其次为大stachyus(16.65%)。研究结果表明,抗痢疾芽孢杆菌和木瓜芽孢杆菌酊剂具有防治玉米玉米瘟的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Evaluating Plant Leaf Tinctures against Maize Weevils (Sitophilus zeamais Motsch.) in Stored Maize (Zea mays L.) under Laboratory Conditions
Maize weevils (Sitophilus zeamais Motschulsky) are commonly stored grain pests of economic importance in several parts of Africa. A huge amount of synthetic pesticides is being used for the management of crop pests, which have many negative effects on the biotic and abiotic components of the environment. Plant-derived pesticides, on the other hand, are safe for the environment, affect only target insects, have a low application cost, and are easily biodegradable. The purpose of this research was to determine the effectiveness of ethanol leaf tinctures of four selected botanicals against S. zeamais: Brucea antidysenterica (J.) (Waginos), Croton macrostachyus (Hochst.) (broad-leaved croton), Nephrolepis exaltata (L.) (Boston fern), and Carica papaya (L.) (papaya). The experiment was carried out in a completely randomized design (CRD) with four different concentrations (0 mL, 2.5 mL, 5 mL, and 7.5 mL) and four plant leaf tinctures in three replicates. A random sample of 300 g of clean maize seed was treated with the four selected botanicals in plastic jars covered with a muslin cloth. Twenty adult maize weevils were introduced into each disinfected, treated, and untreated maize grain. The mortality rate, grain damage, and F1 progeny emergences were assessed and analyzed using SPSS software version 25. The highest (100%) mortality rate of S. zeamais was recorded for maize seeds treated with the leaf tincture of B. antidysenterica, followed by maize seeds treated with the leaf tincture of C. papaya (97.5%) at an application rate of 7.5 mL/300 g. The mean weight loss of the seeds showed a significant variation between the treatments. The mean weight loss of the seeds in the control (8.96%) was higher than the total mean weight loss treated by all plant leaf tinctures (3.66%). The emergence of F1 progeny of S. zeamais on maize grains showed significant differences among the treatments. The highest emergence (100%) of F1 progenies was recorded for the control treatment followed by C. macrostachyus (16.65%) at a rate of 2.5 mL/300 g maize grain treatment. The study concluded that B. antidysenterica and C. papaya tinctures had the potential to control the infestation of maize grains by S. zeamais.
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来源期刊
CiteScore
3.60
自引率
5.30%
发文量
66
审稿时长
16 weeks
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