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Biopesticide potential of (7R)-trans,trans-nepetalactone and cis-lachnophyllum ester in control of mustard aphid,Lipaphis erysimi (Kalt.)
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نویسنده
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kumar v. ,mathela c.s. ,tewari g. ,pandey a.k.
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منبع
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jurnal teknologi - 2015 - دوره : 77 - شماره : 2 - صفحه:19 -24
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چکیده
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(7r)-trans,trans-nepetalactone; a monoterpene iridoid (1) and acetylenic compound named cis-lachnophyllum ester (2) were isolated from the essential oils of nepeta elliptica and erigeron annuus,respectively and characterized using a combination of their spectral data (1d-and 2d-nmr,ms,ir). compound 1 and 2 were tested for biopesticide activity against mustard aphid,lipaphis erysimi (kalt.). compound 1 exhibited high insecticidal activity towards l. erysimi with lc50 values of 2.18 and 2.73 mg/ml; lt50 values of 15.24 and 17.18 h. compound 2 also displayed significant insecticidal activity having lc50 values of 0.85 and 4.70 mg/ml; lt50 values of 13.25 and 26.2 h. the activity of compounds 1 and 2 were comparable with synthetic pesticide,monocrotophos used as positive control and thus has potential as natural pesticides for use in economically important crops. © 2015penerbit utm press. all rights reserved.
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کلیدواژه
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(7R)-trans; Biopesticide; Cis-Lachnophyllum ester; Fumigant toxicity; Lipaphiserysimi (Kalt.); Repellent activity; Trans-Nepetalactone
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آدرس
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department of chemistry, India, department of chemistry, India, department of chemistry, India, department of entomology,college of agriculture,g. b. pant university of agriculture and technology,pantnagar, India
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Authors
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