A Semi-Field Approach to Testing Botanical Insecticides. Effects of Natural and Analogues Annonaceous Acetogenins on Spodoptera frugiperda Smith (Lepidoptera: Noctuidae)

农业化学和环境(英文) Pub Date : 2021-01-01 DOI:10.4236/jacen.2021.104031

J. R. Hidalgo, M. Murúa, A. Neske

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引用次数: 1

Abstract

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 deter-mine 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 < 0.05) different in relation to pest mortality than natural ACGs synergizes the insecticidal activity of the commercial product. Finding a new ecological alternative for insect control.

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植物性杀虫剂半田间试验方法。天然及其类似物对夜蛾的影响(鳞翅目:夜蛾科)

无性系醋酸原具有大量的生物活性，其中以杀虫活性最为突出。夜蛾是一种危害玉米作物和其他作物的害虫，对传统杀虫剂具有很强的抗性，这就有充分的理由寻找新的替代方法来控制它们。在玉米2龄幼虫的温室条件下，对玉米2龄幼虫的天然杀虫剂进行了筛选，并确定了合适的浓度。对玉米2龄幼虫的天然杀虫剂进行了评价。分别在处理24、48和72 h后，记录了在温室条件下，果纹夜蛾幼虫的死亡率。结果表明，所测乙酰原素对害虫的死亡率与天然乙酰原素相比有显著差异(P < 0.05)，与市售产品的杀虫活性有协同作用。寻找一种新的生态昆虫防治方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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农业化学和环境(英文)

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148