Stinguel Priscila, Pratissoli Dirceu, de Oliveira Regiane Cristina, Menini Luciano, Piffer Ana Beatriz Mamedes, de Oliveira Ana Carolina Lopes Francisco
Graduate Program in Vegetal Production, Federal University of Espírito Santo - UFES, Alegre, Espírito Santo, Brazil.
Center for Agricultural Sciences and Engineering, Federal University of Espírito Santo-CCAE-UFES, Alegre, Espírito Santo, Brazil.
Neotrop Entomol. 2024 Dec 16;54(1):17. doi: 10.1007/s13744-024-01229-3.
This study aimed to determine the chemical composition of ginger Zingiber officinale Roscoe (Zingiberaceae) and soursop Annona muricata Linn (Annonaceae) oils, formulate stable emulsions of these oils separately, as well as neem oil Azadirachta indica A. Juss (Meliaceae), and evaluate the insecticidal activity of these emulsions against Duponchelia fovealis Zeller, 1847 (Lepidoptera: Crambidae). Each stable emulsion contained an oil phase containing ginger, soursop, or neem oil, a fruit polyalcohol-based emulsifier, ethanol, or water. The insecticidal effect of the different oils and formulated emulsions was tested on the first- and second-instar caterpillars of D. fovealis. The majority of the compounds of the ginger essential oil were α-zingiberene (29%), geranial (14.9%), and α-farnesene (12.9%), and soursop oil had a higher percentage of oleic acid (43.73%), linoleic acid (29.51%), and palmitic acid (20.50%). The CL values of the soursop, neem, and ginger oils were 0.474, 0.473, and 0.602% for first-instar caterpillars and 2.25, 1.02, and 0.624% for second-instar caterpillars of D. fovealis. The formulated emulsions of ginger, soursop, and neem oils remained stable and exhibited toxicity in the first and second instars of D. fovealis development.
本研究旨在确定姜（姜科，姜属，姜Zingiber officinale Roscoe）、刺果番荔枝（番荔枝科，番荔枝属，刺果番荔枝Annona muricata Linn）和印楝（楝科，印楝属，印楝Azadirachta indica A. Juss）油的化学成分，分别制备这些油的稳定乳液，以及印楝油乳液，并评估这些乳液对1847年泽勒描述的凹缘金翅夜蛾（鳞翅目：草螟科）的杀虫活性。每种稳定乳液均含有一个油相，该油相包含姜油、刺果番荔枝油或印楝油、一种基于果实多元醇的乳化剂、乙醇或水。在凹缘金翅夜蛾的一龄和二龄幼虫上测试了不同油类和配制乳液的杀虫效果。姜精油的大多数化合物为α-姜烯（29%）、香叶醛（14.9%）和α-法呢烯（12.9%），刺果番荔枝油中油酸（43.73%）、亚油酸（29.51%）和棕榈酸（20.50%）的含量较高。对于凹缘金翅夜蛾的一龄幼虫，刺果番荔枝油、印楝油和姜油的CL值分别为0.474%、0.473%和0.602%；对于二龄幼虫，CL值分别为2.25%、1.02%和0.624%。姜油、刺果番荔枝油和印楝油配制的乳液保持稳定，并在凹缘金翅夜蛾发育的一龄和二龄期表现出毒性。
