{"title":"Toxicity and repellent effect of essential oils and a major component against Lipaphis erysimi","authors":"Vinod Kumar, C. Mathela","doi":"10.18869/MODARES.JCP.6.1.15","DOIUrl":null,"url":null,"abstract":"Essential oils (EOs) extracted from aerial parts of Aster indamellus Grierson, Calamintha umbrosa Benth. and Erigeron annuus (L.) Pres. were analyzed by GC, GC/MS. The major acetylenic constituent (cis-lachnophyllum ester) of E. annuus was isolated and characterized by H and C-NMR spectra. Their toxicity and repellent effect against Lipaphis erysimi was tested. Oils of E. annuus and C. umbrosa exhibited higher toxicity on direct spray and by fumigation. LC50 value of E. annuus oil was 0.43 mg/ml as direct spray. By fumigation, LC50 value for E. annuus was 1.29 ml/l air, while for C. umbrosa; it was 1.00 ml/l air. With acetylenic ester, about half of L. erysimi were killed at 10 mg/ml approximately within 13.25 h, while with E. annuus oil the LT50 value was approximately 8.89 h. In conclusion, the EO of E. annuus and its acetylenic constituent have potential as biopesticide for economically important crop pests.","PeriodicalId":15396,"journal":{"name":"Journal of Crop Protection","volume":"6 1","pages":"15-23"},"PeriodicalIF":0.0000,"publicationDate":"2017-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Crop Protection","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.18869/MODARES.JCP.6.1.15","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
引用次数: 5
Abstract
Essential oils (EOs) extracted from aerial parts of Aster indamellus Grierson, Calamintha umbrosa Benth. and Erigeron annuus (L.) Pres. were analyzed by GC, GC/MS. The major acetylenic constituent (cis-lachnophyllum ester) of E. annuus was isolated and characterized by H and C-NMR spectra. Their toxicity and repellent effect against Lipaphis erysimi was tested. Oils of E. annuus and C. umbrosa exhibited higher toxicity on direct spray and by fumigation. LC50 value of E. annuus oil was 0.43 mg/ml as direct spray. By fumigation, LC50 value for E. annuus was 1.29 ml/l air, while for C. umbrosa; it was 1.00 ml/l air. With acetylenic ester, about half of L. erysimi were killed at 10 mg/ml approximately within 13.25 h, while with E. annuus oil the LT50 value was approximately 8.89 h. In conclusion, the EO of E. annuus and its acetylenic constituent have potential as biopesticide for economically important crop pests.
期刊介绍：
Journal of Crop Protection is one of the TMU Press journals that is published by the responsibility of its Editor-in-Chief and Editorial Board in the determined scopes. Journal of Crop Protection (JCP) is an international peer-reviewed research journal published quarterly for the purpose of advancing the scientific studies. It covers fundamental and applied aspects of plant pathology and entomology in agriculture and natural resources. The journal will consider submissions from all over the world, on research works not being published or submitted for publication as full paper, review article and research note elsewhere. The Papers are published in English with an extra abstract in Farsi language.
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