A Semi-Field Approach to Testing Botanical Insecticides. Effects of Natural and Analogues Annonaceous Acetogenins on <i>Spodoptera frugiperda</i>Smith (Lepidoptera: Noctuidae)
A Semi-Field Approach to Testing Botanical Insecticides. Effects of Natural and Analogues Annonaceous Acetogenins on <i>Spodoptera frugiperda</i>Smith (Lepidoptera: Noctuidae)作者机构：Instituto de Química Orgánica Facultad de Bioquímica Química y Farmacia UNT Tucumán Argentina Instituto de Tecnologia Agroindustrial del Noroeste Argentino (ITANOA) Estación Experimental Agroindustrial Obispo Colombres (EEAOC)-CONICET Las TalitasTucumán Argentina Facultad de Ciencias Naturales e Instituto Miguel Lillo UNT Miguel Lillo San Miguel de Tucumán
出 版 物：《Journal of Agricultural Chemistry and Environment》 (农业化学和环境（英文）)
年 卷 期：2021年第10卷第4期
页 面：458-468页
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学]
主 题：Annonaceous Acetogenins Biocides Spodoptera frugiperda
摘 要：Annonaceous acetogenins enclose a large number of biological activities, among which the insecticidal stands out. Spodoptera frugiperda is a pest that affects corn crops among others and has a great capacity to develop resistance to traditional insecticides, which represents sufficient reasons for the search for new alternatives for their control. The objective of this study was to determine the appropriate concentration and screening new natural insecticides against second instar larvae of S. frugiperda, under glasshouse conditions on Zea mays L. Natural products such as annonaceous acetogenins and some acetylated and methoxy methylated ACG derivatives and the commercial product Lambda-cyhalotrin (LC) were evaluated. The percent mortalities of S. frugiperda larvae in glasshouse conditions were recorded after 24, 48 and 72 h of treatment application. The results showed that the acetogenins tested were significantly (P 5) (100 μg/mL) + squamocin (6) (100 μg/mL) + LC (50 μg/mL) that proved the most effective and gave (100%), while rolliniastatin-2 (5) at 100 μg/mL alone, gave lowest percent mortality (65%), followed by squamocin (6) at 100 μg/mL (55%) and LC at 50 μg/mL (30%). The acetylated and methoxy methylated ACGs derivatives caused very low mortality (25% - 35%). It is recommended the mixture as a management option of S. frugiperda as a component of integrated pest management. The results allow us to infer that the addition of natural ACGs synergizes the insecticidal activity of the commercial product. Finding a new ecological alternative for insect control.
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